From fa6bd996db2fbecd7a9a408c158105c55a51fe41 Mon Sep 17 00:00:00 2001
From: Li Yang
Date: Fri, 7 May 2010 16:38:34 +0800
Subject: powerpc/fsl-booke: Fix InstructionTLBError execute permission check

In CONFIG_PTE_64BIT the PTE format has unique permission bits for user
and supervisor execute.  However on !CONFIG_PTE_64BIT we overload the
supervisor bit to imply user execute with _PAGE_USER set.  This allows
us to use the same permission check mask for user or supervisor code on
!CONFIG_PTE_64BIT.

However, on CONFIG_PTE_64BIT we map _PAGE_EXEC to _PAGE_BAP_UX so we
need a different permission mask based on the fault coming from a kernel
address or user space.

Without unique permission masks we see issues like the following with
modules:

Unable to handle kernel paging request for instruction fetch
Faulting instruction address: 0xf938d040
Oops: Kernel access of bad area, sig: 11 [#1]

Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jin Qing <b24347@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
 arch/powerpc/kernel/head_fsl_booke.S | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 725526547994..edd4a57fd29e 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -639,6 +639,13 @@ interrupt_base:
 	rlwinm	r12,r12,0,16,1
 	mtspr	SPRN_MAS1,r12
 
+	/* Make up the required permissions for kernel code */
+#ifdef CONFIG_PTE_64BIT
+	li	r13,_PAGE_PRESENT | _PAGE_BAP_SX
+	oris	r13,r13,_PAGE_ACCESSED@h
+#else
+	li	r13,_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_EXEC
+#endif
 	b	4f
 
 	/* Get the PGD for the current thread */
@@ -646,15 +653,15 @@ interrupt_base:
 	mfspr	r11,SPRN_SPRG_THREAD
 	lwz	r11,PGDIR(r11)
 
-4:
-	/* Make up the required permissions */
+	/* Make up the required permissions for user code */
 #ifdef CONFIG_PTE_64BIT
-	li	r13,_PAGE_PRESENT | _PAGE_EXEC
+	li	r13,_PAGE_PRESENT | _PAGE_BAP_UX
 	oris	r13,r13,_PAGE_ACCESSED@h
 #else
 	li	r13,_PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_EXEC
 #endif
 
+4:
 	FIND_PTE
 	andc.	r13,r13,r11		/* Check permission */
 
-- 
cgit v1.2.3-55-g7522


From 500a0e56c36dabb8cb0d8f3c93aac900058ef7af Mon Sep 17 00:00:00 2001
From: Kumar Gala
Date: Thu, 13 May 2010 14:38:21 -0500
Subject: powerpc/fsl-booke: Move loadcam_entry back to asm code to fix SMP
 ftrace

When we build with ftrace enabled its possible that loadcam_entry would
have used the stack pointer (even though the code doesn't need it).  We
call loadcam_entry in __secondary_start before the stack is setup.  To
ensure that loadcam_entry doesn't use the stack pointer the easiest
solution is to just have it in asm code.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
 arch/powerpc/kernel/asm-offsets.c |  8 ++++++++
 arch/powerpc/mm/fsl_booke_mmu.c   | 25 +++----------------------
 arch/powerpc/mm/mmu_decl.h        | 10 +++++++++-
 arch/powerpc/mm/tlb_nohash_low.S  | 28 ++++++++++++++++++++++++++++
 4 files changed, 48 insertions(+), 23 deletions(-)

diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index c09138d150d4..b894721dfb08 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -447,6 +447,14 @@ int main(void)
 	DEFINE(PGD_T_LOG2, PGD_T_LOG2);
 	DEFINE(PTE_T_LOG2, PTE_T_LOG2);
 #endif
+#ifdef CONFIG_FSL_BOOKE
+	DEFINE(TLBCAM_SIZE, sizeof(struct tlbcam));
+	DEFINE(TLBCAM_MAS0, offsetof(struct tlbcam, MAS0));
+	DEFINE(TLBCAM_MAS1, offsetof(struct tlbcam, MAS1));
+	DEFINE(TLBCAM_MAS2, offsetof(struct tlbcam, MAS2));
+	DEFINE(TLBCAM_MAS3, offsetof(struct tlbcam, MAS3));
+	DEFINE(TLBCAM_MAS7, offsetof(struct tlbcam, MAS7));
+#endif
 
 #ifdef CONFIG_KVM_EXIT_TIMING
 	DEFINE(VCPU_TIMING_EXIT_TBU, offsetof(struct kvm_vcpu,
diff --git a/arch/powerpc/mm/fsl_booke_mmu.c b/arch/powerpc/mm/fsl_booke_mmu.c
index 1ed6b52f3031..cdc7526e9c93 100644
--- a/arch/powerpc/mm/fsl_booke_mmu.c
+++ b/arch/powerpc/mm/fsl_booke_mmu.c
@@ -2,7 +2,7 @@
  * Modifications by Kumar Gala (galak@kernel.crashing.org) to support
  * E500 Book E processors.
  *
- * Copyright 2004 Freescale Semiconductor, Inc
+ * Copyright 2004,2010 Freescale Semiconductor, Inc.
  *
  * This file contains the routines for initializing the MMU
  * on the 4xx series of chips.
@@ -56,19 +56,13 @@
 
 unsigned int tlbcam_index;
 
-#define NUM_TLBCAMS	(64)
 
 #if defined(CONFIG_LOWMEM_CAM_NUM_BOOL) && (CONFIG_LOWMEM_CAM_NUM >= NUM_TLBCAMS)
 #error "LOWMEM_CAM_NUM must be less than NUM_TLBCAMS"
 #endif
 
-struct tlbcam {
-	u32	MAS0;
-	u32	MAS1;
-	unsigned long	MAS2;
-	u32	MAS3;
-	u32	MAS7;
-} TLBCAM[NUM_TLBCAMS];
+#define NUM_TLBCAMS	(64)
+struct tlbcam TLBCAM[NUM_TLBCAMS];
 
 struct tlbcamrange {
 	unsigned long start;
@@ -109,19 +103,6 @@ unsigned long p_mapped_by_tlbcam(phys_addr_t pa)
 	return 0;
 }
 
-void loadcam_entry(int idx)
-{
-	mtspr(SPRN_MAS0, TLBCAM[idx].MAS0);
-	mtspr(SPRN_MAS1, TLBCAM[idx].MAS1);
-	mtspr(SPRN_MAS2, TLBCAM[idx].MAS2);
-	mtspr(SPRN_MAS3, TLBCAM[idx].MAS3);
-
-	if (mmu_has_feature(MMU_FTR_BIG_PHYS))
-		mtspr(SPRN_MAS7, TLBCAM[idx].MAS7);
-
-	asm volatile("isync;tlbwe;isync" : : : "memory");
-}
-
 /*
  * Set up one of the I/D BAT (block address translation) register pairs.
  * The parameters are not checked; in particular size must be a power
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index d49a77503e19..0591f25a9b8c 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -149,7 +149,15 @@ extern unsigned long mmu_mapin_ram(unsigned long top);
 extern void MMU_init_hw(void);
 extern unsigned long mmu_mapin_ram(unsigned long top);
 extern void adjust_total_lowmem(void);
-
+extern void loadcam_entry(unsigned int index);
+
+struct tlbcam {
+	u32	MAS0;
+	u32	MAS1;
+	unsigned long	MAS2;
+	u32	MAS3;
+	u32	MAS7;
+};
 #elif defined(CONFIG_PPC32)
 /* anything 32-bit except 4xx or 8xx */
 extern void MMU_init_hw(void);
diff --git a/arch/powerpc/mm/tlb_nohash_low.S b/arch/powerpc/mm/tlb_nohash_low.S
index bbdc5b577b85..8656ecf9e1d7 100644
--- a/arch/powerpc/mm/tlb_nohash_low.S
+++ b/arch/powerpc/mm/tlb_nohash_low.S
@@ -271,3 +271,31 @@ _GLOBAL(set_context)
 #else
 #error Unsupported processor type !
 #endif
+
+#if defined(CONFIG_FSL_BOOKE)
+/*
+ * extern void loadcam_entry(unsigned int index)
+ *
+ * Load TLBCAM[index] entry in to the L2 CAM MMU
+ */
+_GLOBAL(loadcam_entry)
+	LOAD_REG_ADDR(r4, TLBCAM)
+	mulli	r5,r3,TLBCAM_SIZE
+	add	r3,r5,r4
+	lwz	r4,TLBCAM_MAS0(r3)
+	mtspr	SPRN_MAS0,r4
+	lwz	r4,TLBCAM_MAS1(r3)
+	mtspr	SPRN_MAS1,r4
+	PPC_LL	r4,TLBCAM_MAS2(r3)
+	mtspr	SPRN_MAS2,r4
+	lwz	r4,TLBCAM_MAS3(r3)
+	mtspr	SPRN_MAS3,r4
+BEGIN_MMU_FTR_SECTION
+	lwz	r4,TLBCAM_MAS7(r3)
+	mtspr	SPRN_MAS7,r4
+END_MMU_FTR_SECTION_IFSET(MMU_FTR_BIG_PHYS)
+	isync
+	tlbwe
+	isync
+	blr
+#endif
-- 
cgit v1.2.3-55-g7522


From 0d7168bcf45fa5b6307726091ea77fd4ab16d1ab Mon Sep 17 00:00:00 2001
From: Carl Worth
Date: Mon, 17 May 2010 09:46:05 -0700
Subject: Revert "drm/i915: Don't enable pipe/plane/VCO early (wait for DPMS
 on)."

This reverts commit cfecde435dda78248d6fcdc424bed68d5db6be0b.

The commit was first created as an attempt to fix LVDS initialiazation
on Ironlake. Testing revealed that it didn't fix that, but it was
assumed to still be correct anyway.

Subsequent testing has revealed that this commit has caused other
regressions:

  * Change in VBlank interrupt frequency causing 60% 3D performance regression
    http://bugs.freedesktop.org/show_bug.cgi?id=27698

  * Black screen on G45
    http://bugs.freedesktop.org/show_bug.cgi?id=27733

So revert this buggy code for now to revisit later when we can fix
actual bugs without causing these regressions.

Signed-off-by: Carl Worth <cworth@cworth.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/intel_display.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 88a1ab7c05ce..b40155fe5122 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3653,6 +3653,11 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 			pipeconf &= ~PIPEACONF_DOUBLE_WIDE;
 	}
 
+	dspcntr |= DISPLAY_PLANE_ENABLE;
+	pipeconf |= PIPEACONF_ENABLE;
+	dpll |= DPLL_VCO_ENABLE;
+
+
 	/* Disable the panel fitter if it was on our pipe */
 	if (!HAS_PCH_SPLIT(dev) && intel_panel_fitter_pipe(dev) == pipe)
 		I915_WRITE(PFIT_CONTROL, 0);
-- 
cgit v1.2.3-55-g7522


From 382fe70fddf54114802c935264f1d5baf8d3d174 Mon Sep 17 00:00:00 2001
From: Chris Wilson
Date: Wed, 2 Jun 2010 08:41:44 +0100
Subject: drm/i915: Move non-phys cursors into the GTT

Cursors need to be in the GTT domain when being accessed by the GPU.
Previously this was a fortuitous byproduct of userspace using pwrite()
to upload the image data into the cursor. The redundant clflush was
removed in commit 9b8c4a and so the image was no longer being flushed
out of the caches into main memory. One could also devise a scenario
where the cursor was rendered by the GPU, prior to being attached as the
cursor, resulting in similar corruption due to the missing MI_FLUSH.

Fixes:

  Bug 28335 - Cursor corruption caused by commit 9b8c4a0b21
  https://bugs.freedesktop.org/show_bug.cgi?id=28335

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Arkadiusz Miśkiewicz <arekm@maven.pl>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/intel_display.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index b40155fe5122..a8d65b7cb72a 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3978,6 +3978,13 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
 			DRM_ERROR("failed to pin cursor bo\n");
 			goto fail_locked;
 		}
+
+		ret = i915_gem_object_set_to_gtt_domain(bo, 0);
+		if (ret) {
+			DRM_ERROR("failed to move cursor bo into the GTT\n");
+			goto fail_unpin;
+		}
+
 		addr = obj_priv->gtt_offset;
 	} else {
 		ret = i915_gem_attach_phys_object(dev, bo, (pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1);
@@ -4021,6 +4028,8 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
 	intel_crtc->cursor_bo = bo;
 
 	return 0;
+fail_unpin:
+	i915_gem_object_unpin(bo);
 fail_locked:
 	mutex_unlock(&dev->struct_mutex);
 fail:
-- 
cgit v1.2.3-55-g7522


From 8aa4b14eb023fecaa48d55402e98bdf84b375c4a Mon Sep 17 00:00:00 2001
From: Chen Gong
Date: Sun, 30 May 2010 11:37:08 +0800
Subject: ACPI: acpi_pad: Don't needlessly mark LAPIC unstable

As suggested in Venki's suggestion in the commit 0dc698b,
add LAPIC unstable detection in the acpi_pad drvier too.

Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpi_pad.c | 36 ++++++++++++++++++++++++------------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index d269a8f3329c..446aced33aff 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -46,6 +46,8 @@ static unsigned long power_saving_mwait_eax;
 
 static unsigned char tsc_detected_unstable;
 static unsigned char tsc_marked_unstable;
+static unsigned char lapic_detected_unstable;
+static unsigned char lapic_marked_unstable;
 
 static void power_saving_mwait_init(void)
 {
@@ -75,9 +77,6 @@ static void power_saving_mwait_init(void)
 	power_saving_mwait_eax = (highest_cstate << MWAIT_SUBSTATE_SIZE) |
 		(highest_subcstate - 1);
 
-	for_each_online_cpu(i)
-		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &i);
-
 #if defined(CONFIG_GENERIC_TIME) && defined(CONFIG_X86)
 	switch (boot_cpu_data.x86_vendor) {
 	case X86_VENDOR_AMD:
@@ -86,13 +85,15 @@ static void power_saving_mwait_init(void)
 		 * AMD Fam10h TSC will tick in all
 		 * C/P/S0/S1 states when this bit is set.
 		 */
-		if (boot_cpu_has(X86_FEATURE_NONSTOP_TSC))
-			return;
-
-		/*FALL THROUGH*/
+		if (!boot_cpu_has(X86_FEATURE_NONSTOP_TSC))
+			tsc_detected_unstable = 1;
+		if (!boot_cpu_has(X86_FEATURE_ARAT))
+			lapic_detected_unstable = 1;
+		break;
 	default:
-		/* TSC could halt in idle */
+		/* TSC & LAPIC could halt in idle */
 		tsc_detected_unstable = 1;
+		lapic_detected_unstable = 1;
 	}
 #endif
 }
@@ -180,10 +181,20 @@ static int power_saving_thread(void *data)
 				mark_tsc_unstable("TSC halts in idle");
 				tsc_marked_unstable = 1;
 			}
+			if (lapic_detected_unstable && !lapic_marked_unstable) {
+				int i;
+				/* LAPIC could halt in idle, so notify users */
+				for_each_online_cpu(i)
+					clockevents_notify(
+						CLOCK_EVT_NOTIFY_BROADCAST_ON,
+						&i);
+				lapic_marked_unstable = 1;
+			}
 			local_irq_disable();
 			cpu = smp_processor_id();
-			clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER,
-				&cpu);
+			if (lapic_marked_unstable)
+				clockevents_notify(
+					CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
 			stop_critical_timings();
 
 			__monitor((void *)&current_thread_info()->flags, 0, 0);
@@ -192,8 +203,9 @@ static int power_saving_thread(void *data)
 				__mwait(power_saving_mwait_eax, 1);
 
 			start_critical_timings();
-			clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT,
-				&cpu);
+			if (lapic_marked_unstable)
+				clockevents_notify(
+					CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
 			local_irq_enable();
 
 			if (jiffies > expire_time) {
-- 
cgit v1.2.3-55-g7522


From f458823b864c6def488f951a79986fa205aba4f1 Mon Sep 17 00:00:00 2001
From: Dave Müller
Date: Fri, 4 Jun 2010 16:39:59 -0700
Subject: drm/i915: Use RSEN instead of HTPLG for tfp410 monitor detection.

Presence detection of a digital monitor seems not to be reliable using
the HTPLG bit.

Dave Müller <dave.mueller@gmx.ch>
---
 drivers/gpu/drm/i915/dvo_tfp410.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/dvo_tfp410.c b/drivers/gpu/drm/i915/dvo_tfp410.c
index 66c697bc9b22..56f66426207f 100644
--- a/drivers/gpu/drm/i915/dvo_tfp410.c
+++ b/drivers/gpu/drm/i915/dvo_tfp410.c
@@ -208,7 +208,7 @@ static enum drm_connector_status tfp410_detect(struct intel_dvo_device *dvo)
 	uint8_t ctl2;
 
 	if (tfp410_readb(dvo, TFP410_CTL_2, &ctl2)) {
-		if (ctl2 & TFP410_CTL_2_HTPLG)
+		if (ctl2 & TFP410_CTL_2_RSEN)
 			ret = connector_status_connected;
 		else
 			ret = connector_status_disconnected;
-- 
cgit v1.2.3-55-g7522


From c496fa1fff0248ef8cd637efb52b70dea7afaa9d Mon Sep 17 00:00:00 2001
From: Adam Jackson
Date: Thu, 27 May 2010 17:26:45 -0400
Subject: drm/i915/gen4: Fix interrupt setup ordering

Unmask, then enable interrupts, then enable interrupt sources; matches
PCH ordering.  The old way (sources, enable, unmask) gives a window
during which interrupt conditions would appear in ISR but would never
reach IIR and thus never raise an IRQ.  Since interrupts only trigger
on rising edges in ISR, this would lead to conditions where (for
example) output hotplugging would never fire an interrupt because it
was already stuck on in ISR.

Also, since we know IIR and PIPExSTAT have been cleared during
irq_preinstall, don't clear them again during irq_postinstall, nothing
good can come of that.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_irq.c | 50 +++++++++++++++++++----------------------
 1 file changed, 23 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 2479be001e40..e9710a7005d4 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1387,29 +1387,10 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
 	dev_priv->pipestat[1] = 0;
 
 	if (I915_HAS_HOTPLUG(dev)) {
-		u32 hotplug_en = I915_READ(PORT_HOTPLUG_EN);
-
-		/* Note HDMI and DP share bits */
-		if (dev_priv->hotplug_supported_mask & HDMIB_HOTPLUG_INT_STATUS)
-			hotplug_en |= HDMIB_HOTPLUG_INT_EN;
-		if (dev_priv->hotplug_supported_mask & HDMIC_HOTPLUG_INT_STATUS)
-			hotplug_en |= HDMIC_HOTPLUG_INT_EN;
-		if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS)
-			hotplug_en |= HDMID_HOTPLUG_INT_EN;
-		if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS)
-			hotplug_en |= SDVOC_HOTPLUG_INT_EN;
-		if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS)
-			hotplug_en |= SDVOB_HOTPLUG_INT_EN;
-		if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS)
-			hotplug_en |= CRT_HOTPLUG_INT_EN;
-		/* Ignore TV since it's buggy */
-
-		I915_WRITE(PORT_HOTPLUG_EN, hotplug_en);
-
 		/* Enable in IER... */
 		enable_mask |= I915_DISPLAY_PORT_INTERRUPT;
 		/* and unmask in IMR */
-		i915_enable_irq(dev_priv, I915_DISPLAY_PORT_INTERRUPT);
+		dev_priv->irq_mask_reg &= ~I915_DISPLAY_PORT_INTERRUPT;
 	}
 
 	/*
@@ -1427,16 +1408,31 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
 	}
 	I915_WRITE(EMR, error_mask);
 
-	/* Disable pipe interrupt enables, clear pending pipe status */
-	I915_WRITE(PIPEASTAT, I915_READ(PIPEASTAT) & 0x8000ffff);
-	I915_WRITE(PIPEBSTAT, I915_READ(PIPEBSTAT) & 0x8000ffff);
-	/* Clear pending interrupt status */
-	I915_WRITE(IIR, I915_READ(IIR));
-
-	I915_WRITE(IER, enable_mask);
 	I915_WRITE(IMR, dev_priv->irq_mask_reg);
+	I915_WRITE(IER, enable_mask);
 	(void) I915_READ(IER);
 
+	if (I915_HAS_HOTPLUG(dev)) {
+		u32 hotplug_en = I915_READ(PORT_HOTPLUG_EN);
+
+		/* Note HDMI and DP share bits */
+		if (dev_priv->hotplug_supported_mask & HDMIB_HOTPLUG_INT_STATUS)
+			hotplug_en |= HDMIB_HOTPLUG_INT_EN;
+		if (dev_priv->hotplug_supported_mask & HDMIC_HOTPLUG_INT_STATUS)
+			hotplug_en |= HDMIC_HOTPLUG_INT_EN;
+		if (dev_priv->hotplug_supported_mask & HDMID_HOTPLUG_INT_STATUS)
+			hotplug_en |= HDMID_HOTPLUG_INT_EN;
+		if (dev_priv->hotplug_supported_mask & SDVOC_HOTPLUG_INT_STATUS)
+			hotplug_en |= SDVOC_HOTPLUG_INT_EN;
+		if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS)
+			hotplug_en |= SDVOB_HOTPLUG_INT_EN;
+		if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS)
+			hotplug_en |= CRT_HOTPLUG_INT_EN;
+		/* Ignore TV since it's buggy */
+
+		I915_WRITE(PORT_HOTPLUG_EN, hotplug_en);
+	}
+
 	opregion_enable_asle(dev);
 
 	return 0;
-- 
cgit v1.2.3-55-g7522


From 0b75f775288b90a83a8708a5af663a03d4bbc9ce Mon Sep 17 00:00:00 2001
From: Dan Carpenter
Date: Sat, 5 Jun 2010 00:34:08 -0700
Subject: Input: pcf8574_keypad - fix off by one in pcf8574_kp_irq_handler()

If nextstate == ARRAY_SIZE(lp->btncode), then we read one past the end of
the array on the next line.

This fixes a smatch warning:
drivers/input/misc/pcf8574_keypad.c +74 pcf8574_kp_irq_handler(8)
	error: buffer overflow 'lp->btncode' 17 <= 17

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/misc/pcf8574_keypad.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/misc/pcf8574_keypad.c b/drivers/input/misc/pcf8574_keypad.c
index 5c3ac4e0b055..376e54df4763 100644
--- a/drivers/input/misc/pcf8574_keypad.c
+++ b/drivers/input/misc/pcf8574_keypad.c
@@ -69,7 +69,7 @@ static irqreturn_t pcf8574_kp_irq_handler(int irq, void *dev_id)
 	unsigned char nextstate = read_state(lp);
 
 	if (lp->laststate != nextstate) {
-		int key_down = nextstate <= ARRAY_SIZE(lp->btncode);
+		int key_down = nextstate < ARRAY_SIZE(lp->btncode);
 		unsigned short keycode = key_down ?
 			lp->btncode[nextstate] : lp->btncode[lp->laststate];
 
-- 
cgit v1.2.3-55-g7522


From 42edb1d306d7941405b5ba5e7599ea99fc4bdf5a Mon Sep 17 00:00:00 2001
From: Huang Weiyi
Date: Sat, 5 Jun 2010 14:42:39 +0000
Subject: sh: remove duplicated #include

Remove duplicated #include('s) in
  arch/sh/boards/mach-ecovec24/setup.c

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/mach-ecovec24/setup.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index be1d114d3a43..1d7b495a7db4 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -25,7 +25,6 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/sh_msiof.h>
 #include <linux/spi/mmc_spi.h>
-#include <linux/mmc/host.h>
 #include <linux/input.h>
 #include <linux/input/sh_keysc.h>
 #include <video/sh_mobile_lcdc.h>
-- 
cgit v1.2.3-55-g7522


From 9973e38575070b70c68bad177fb5056548fea349 Mon Sep 17 00:00:00 2001
From: Paul Mundt
Date: Mon, 7 Jun 2010 11:42:01 +0900
Subject: sh: Fix up IORESOURCE_PCI_FIXED usage in
 pcibios_fixup_device_resources().

pcibios_fixup_device_resources() presently skips over resources flagged
with IORESOURCE_PCI_FIXED, which is a remnant of the old PCI-auto code.
The only user for this at present is the Dreamast GAPSPCI code which
can't tolerate any adjustments to the BARs, but a combination of the
IORESOURCE_PCI_FIXED and zeroed out hose offsets does the right thing for
this case already, so we simply kill off the special casing.

Reported-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/drivers/pci/pci.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index 953af139e230..1e9598d2bbf4 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -139,8 +139,6 @@ static void pcibios_fixup_device_resources(struct pci_dev *dev,
 	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
 		if (!dev->resource[i].start)
 			continue;
-		if (dev->resource[i].flags & IORESOURCE_PCI_FIXED)
-			continue;
 		if (dev->resource[i].flags & IORESOURCE_IO)
 			offset = hose->io_offset;
 		else if (dev->resource[i].flags & IORESOURCE_MEM)
-- 
cgit v1.2.3-55-g7522


From fc4ac7a5f5996712d9123ae4850948c640edb315 Mon Sep 17 00:00:00 2001
From: Andres Salomon
Date: Sat, 5 Jun 2010 11:40:42 -0400
Subject: x86: use __ASSEMBLY__ rather than __ASSEMBLER__

As Ingo pointed out in a separate patch, we should be using __ASSEMBLY__.
Make that the case in pgtable headers.

Signed-off-by: Andres Salomon <dilinger@queued.net>
LKML-Reference: <20100605114042.35ac69c1@dev.queued.net>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/pgtable_32_types.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
index 5e67c1532314..ed5903be26fe 100644
--- a/arch/x86/include/asm/pgtable_32_types.h
+++ b/arch/x86/include/asm/pgtable_32_types.h
@@ -26,7 +26,7 @@
  */
 #define VMALLOC_OFFSET	(8 * 1024 * 1024)
 
-#ifndef __ASSEMBLER__
+#ifndef __ASSEMBLY__
 extern bool __vmalloc_start_set; /* set once high_memory is set */
 #endif
 
-- 
cgit v1.2.3-55-g7522


From cd9b6fdf798841eb15253f928e762eee5260d347 Mon Sep 17 00:00:00 2001
From: Oskar Schirmer
Date: Tue, 8 Jun 2010 01:12:22 -0700
Subject: Input: ad7877 - fix spi word size to 16 bit

With no word size given in the users platform data, a generic spi host
controller driver will assume a default word size of eight bit. This
causes transmission to be performed bytewise, which will fail on little
endian machines for sure. Failure on big endian depends on usage
of slave select to mark word boundaries.

Anyway, ad7877 is specified to work with 16 bit per word, so
unconditionally set the word size accordingly. Flag an error where 16
bit per word is not available.

Signed-off-by: Oskar Schirmer <os@emlix.com>
Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Oliver Schneidewind <osw@emlix.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/touchscreen/ad7877.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index 0d2d7e54b465..5f0221cffef9 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -679,6 +679,13 @@ static int __devinit ad7877_probe(struct spi_device *spi)
 		return -EINVAL;
 	}
 
+	spi->bits_per_word = 16;
+	err = spi_setup(spi);
+	if (err) {
+		dev_dbg(&spi->dev, "spi master doesn't support 16 bits/word\n");
+		return err;
+	}
+
 	ts = kzalloc(sizeof(struct ad7877), GFP_KERNEL);
 	input_dev = input_allocate_device();
 	if (!ts || !input_dev) {
-- 
cgit v1.2.3-55-g7522


From dc61b1d65e353d638b2445f71fb8e5b5630f2415 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra
Date: Tue, 8 Jun 2010 11:40:42 +0200
Subject: sched: Fix PROVE_RCU vs cpu_cgroup

PROVE_RCU has a few issues with the cpu_cgroup because the scheduler
typically holds rq->lock around the css rcu derefs but the generic
cgroup code doesn't (and can't) know about that lock.

Provide means to add extra checks to the css dereference and use that
in the scheduler to annotate its users.

The addition of rq->lock to these checks is correct because the
cgroup_subsys::attach() method takes the rq->lock for each task it
moves, therefore by holding that lock, we ensure the task is pinned to
the current cgroup and the RCU derefence is valid.

That leaves one genuine race in __sched_setscheduler() where we used
task_group() without holding any of the required locks and thus raced
with the cgroup code. Solve this by moving the check under the
appropriate lock.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/cgroup.h |  20 ++++++---
 kernel/sched.c         | 115 +++++++++++++++++++++++++------------------------
 2 files changed, 73 insertions(+), 62 deletions(-)

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 0c621604baa1..e3d00fdb858d 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -525,13 +525,21 @@ static inline struct cgroup_subsys_state *cgroup_subsys_state(
 	return cgrp->subsys[subsys_id];
 }
 
-static inline struct cgroup_subsys_state *task_subsys_state(
-	struct task_struct *task, int subsys_id)
+/*
+ * function to get the cgroup_subsys_state which allows for extra
+ * rcu_dereference_check() conditions, such as locks used during the
+ * cgroup_subsys::attach() methods.
+ */
+#define task_subsys_state_check(task, subsys_id, __c)			\
+	rcu_dereference_check(task->cgroups->subsys[subsys_id],		\
+			      rcu_read_lock_held() ||			\
+			      lockdep_is_held(&task->alloc_lock) ||	\
+			      cgroup_lock_is_held() || (__c))
+
+static inline struct cgroup_subsys_state *
+task_subsys_state(struct task_struct *task, int subsys_id)
 {
-	return rcu_dereference_check(task->cgroups->subsys[subsys_id],
-				     rcu_read_lock_held() ||
-				     lockdep_is_held(&task->alloc_lock) ||
-				     cgroup_lock_is_held());
+	return task_subsys_state_check(task, subsys_id, false);
 }
 
 static inline struct cgroup* task_cgroup(struct task_struct *task,
diff --git a/kernel/sched.c b/kernel/sched.c
index f8b8996228dd..2aaceebd484c 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -306,52 +306,6 @@ static int init_task_group_load = INIT_TASK_GROUP_LOAD;
  */
 struct task_group init_task_group;
 
-/* return group to which a task belongs */
-static inline struct task_group *task_group(struct task_struct *p)
-{
-	struct task_group *tg;
-
-#ifdef CONFIG_CGROUP_SCHED
-	tg = container_of(task_subsys_state(p, cpu_cgroup_subsys_id),
-				struct task_group, css);
-#else
-	tg = &init_task_group;
-#endif
-	return tg;
-}
-
-/* Change a task's cfs_rq and parent entity if it moves across CPUs/groups */
-static inline void set_task_rq(struct task_struct *p, unsigned int cpu)
-{
-	/*
-	 * Strictly speaking this rcu_read_lock() is not needed since the
-	 * task_group is tied to the cgroup, which in turn can never go away
-	 * as long as there are tasks attached to it.
-	 *
-	 * However since task_group() uses task_subsys_state() which is an
-	 * rcu_dereference() user, this quiets CONFIG_PROVE_RCU.
-	 */
-	rcu_read_lock();
-#ifdef CONFIG_FAIR_GROUP_SCHED
-	p->se.cfs_rq = task_group(p)->cfs_rq[cpu];
-	p->se.parent = task_group(p)->se[cpu];
-#endif
-
-#ifdef CONFIG_RT_GROUP_SCHED
-	p->rt.rt_rq  = task_group(p)->rt_rq[cpu];
-	p->rt.parent = task_group(p)->rt_se[cpu];
-#endif
-	rcu_read_unlock();
-}
-
-#else
-
-static inline void set_task_rq(struct task_struct *p, unsigned int cpu) { }
-static inline struct task_group *task_group(struct task_struct *p)
-{
-	return NULL;
-}
-
 #endif	/* CONFIG_CGROUP_SCHED */
 
 /* CFS-related fields in a runqueue */
@@ -644,6 +598,49 @@ static inline int cpu_of(struct rq *rq)
 #define cpu_curr(cpu)		(cpu_rq(cpu)->curr)
 #define raw_rq()		(&__raw_get_cpu_var(runqueues))
 
+#ifdef CONFIG_CGROUP_SCHED
+
+/*
+ * Return the group to which this tasks belongs.
+ *
+ * We use task_subsys_state_check() and extend the RCU verification
+ * with lockdep_is_held(&task_rq(p)->lock) because cpu_cgroup_attach()
+ * holds that lock for each task it moves into the cgroup. Therefore
+ * by holding that lock, we pin the task to the current cgroup.
+ */
+static inline struct task_group *task_group(struct task_struct *p)
+{
+	struct cgroup_subsys_state *css;
+
+	css = task_subsys_state_check(p, cpu_cgroup_subsys_id,
+			lockdep_is_held(&task_rq(p)->lock));
+	return container_of(css, struct task_group, css);
+}
+
+/* Change a task's cfs_rq and parent entity if it moves across CPUs/groups */
+static inline void set_task_rq(struct task_struct *p, unsigned int cpu)
+{
+#ifdef CONFIG_FAIR_GROUP_SCHED
+	p->se.cfs_rq = task_group(p)->cfs_rq[cpu];
+	p->se.parent = task_group(p)->se[cpu];
+#endif
+
+#ifdef CONFIG_RT_GROUP_SCHED
+	p->rt.rt_rq  = task_group(p)->rt_rq[cpu];
+	p->rt.parent = task_group(p)->rt_se[cpu];
+#endif
+}
+
+#else /* CONFIG_CGROUP_SCHED */
+
+static inline void set_task_rq(struct task_struct *p, unsigned int cpu) { }
+static inline struct task_group *task_group(struct task_struct *p)
+{
+	return NULL;
+}
+
+#endif /* CONFIG_CGROUP_SCHED */
+
 inline void update_rq_clock(struct rq *rq)
 {
 	if (!rq->skip_clock_update)
@@ -4465,16 +4462,6 @@ recheck:
 	}
 
 	if (user) {
-#ifdef CONFIG_RT_GROUP_SCHED
-		/*
-		 * Do not allow realtime tasks into groups that have no runtime
-		 * assigned.
-		 */
-		if (rt_bandwidth_enabled() && rt_policy(policy) &&
-				task_group(p)->rt_bandwidth.rt_runtime == 0)
-			return -EPERM;
-#endif
-
 		retval = security_task_setscheduler(p, policy, param);
 		if (retval)
 			return retval;
@@ -4490,6 +4477,22 @@ recheck:
 	 * runqueue lock must be held.
 	 */
 	rq = __task_rq_lock(p);
+
+#ifdef CONFIG_RT_GROUP_SCHED
+	if (user) {
+		/*
+		 * Do not allow realtime tasks into groups that have no runtime
+		 * assigned.
+		 */
+		if (rt_bandwidth_enabled() && rt_policy(policy) &&
+				task_group(p)->rt_bandwidth.rt_runtime == 0) {
+			__task_rq_unlock(rq);
+			raw_spin_unlock_irqrestore(&p->pi_lock, flags);
+			return -EPERM;
+		}
+	}
+#endif
+
 	/* recheck policy now with rq lock held */
 	if (unlikely(oldpolicy != -1 && oldpolicy != p->policy)) {
 		policy = oldpolicy = -1;
-- 
cgit v1.2.3-55-g7522


From 7f1225bd6e62c54edfa0a2464648ad9e4efb1313 Mon Sep 17 00:00:00 2001
From: Satish
Date: Wed, 9 Jun 2010 13:21:27 +0300
Subject: omap iommu: Fix Memory leak

The memory allocated for sgt structure is not freed on error
when sg_alloc_table is called in sgtable_alloc().

Signed-off-by: Satish Kumar <x0124230@ti.com>
Signed-off-by: Manjunatha GK <manjugk@ti.com>
Cc: Vimal Singh <vimal.newwork@gmail.com>
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Tony Lindgen <tony@atomide.com>
---
 arch/arm/plat-omap/iovmm.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c
index e43983ba59c5..8ce0de247c71 100644
--- a/arch/arm/plat-omap/iovmm.c
+++ b/arch/arm/plat-omap/iovmm.c
@@ -140,8 +140,10 @@ static struct sg_table *sgtable_alloc(const size_t bytes, u32 flags)
 		return ERR_PTR(-ENOMEM);
 
 	err = sg_alloc_table(sgt, nr_entries, GFP_KERNEL);
-	if (err)
+	if (err) {
+		kfree(sgt);
 		return ERR_PTR(err);
+	}
 
 	pr_debug("%s: sgt:%p(%d entries)\n", __func__, sgt, nr_entries);
 
-- 
cgit v1.2.3-55-g7522


From bfb01197589965663772e6388f2bdf452e25adf2 Mon Sep 17 00:00:00 2001
From: Amit Kucheria
Date: Wed, 9 Jun 2010 13:53:05 +0300
Subject: omap: fix build failure due to missing include dma-mapping.h

Fixes following error,

CC      arch/arm/mach-omap2/usb-ehci.o
arch/arm/mach-omap2/usb-ehci.c:263: error: implicit declaration of function
'DMA_BIT_MASK'
arch/arm/mach-omap2/usb-ehci.c:263: error: initializer element is not constant
make[1]: *** [arch/arm/mach-omap2/usb-ehci.o] Error 1

Signed-off-by: Amit Kucheria <amit.kucheria@canonical.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/usb-ehci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-omap2/usb-ehci.c b/arch/arm/mach-omap2/usb-ehci.c
index c68f799e83c5..d72d1ac30333 100644
--- a/arch/arm/mach-omap2/usb-ehci.c
+++ b/arch/arm/mach-omap2/usb-ehci.c
@@ -20,6 +20,8 @@
 #include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/dma-mapping.h>
+
 #include <asm/io.h>
 #include <plat/mux.h>
 
-- 
cgit v1.2.3-55-g7522


From 99716b662ba527ea66172ba215da8a9d0e567c3e Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar
Date: Wed, 9 Jun 2010 13:53:05 +0300
Subject: omap: Stalker board: switch over to gpio_set_debounce

Commit 48feb337475a arm: omap: switch over to gpio_set_debounce caused
"undefined reference to omap_set_gpio_debounce" build error.

The fix is to use the generic gpiolib function.

Cc: Felipe Balbi <felipe.balbi@nokia.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-omap3stalker.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/arm/mach-omap2/board-omap3stalker.c b/arch/arm/mach-omap2/board-omap3stalker.c
index f848ba8dbc16..a04cffd691c5 100644
--- a/arch/arm/mach-omap2/board-omap3stalker.c
+++ b/arch/arm/mach-omap2/board-omap3stalker.c
@@ -538,9 +538,7 @@ static void ads7846_dev_init(void)
 		printk(KERN_ERR "can't get ads7846 pen down GPIO\n");
 
 	gpio_direction_input(OMAP3_STALKER_TS_GPIO);
-
-	omap_set_gpio_debounce(OMAP3_STALKER_TS_GPIO, 1);
-	omap_set_gpio_debounce_time(OMAP3_STALKER_TS_GPIO, 0xa);
+	gpio_set_debounce(OMAP3_STALKER_TS_GPIO, 310);
 }
 
 static int ads7846_get_pendown_state(void)
-- 
cgit v1.2.3-55-g7522


From aea9d711f3d68c656ad31ab578ecfb0bb5cd7f97 Mon Sep 17 00:00:00 2001
From: Sven Wegener
Date: Wed, 9 Jun 2010 16:10:57 +0200
Subject: ipvs: Add missing locking during connection table hashing and
 unhashing

The code that hashes and unhashes connections from the connection table
is missing locking of the connection being modified, which opens up a
race condition and results in memory corruption when this race condition
is hit.

Here is what happens in pretty verbose form:

CPU 0					CPU 1
------------				------------
An active connection is terminated and
we schedule ip_vs_conn_expire() on this
CPU to expire this connection.

					IRQ assignment is changed to this CPU,
					but the expire timer stays scheduled on
					the other CPU.

					New connection from same ip:port comes
					in right before the timer expires, we
					find the inactive connection in our
					connection table and get a reference to
					it. We proper lock the connection in
					tcp_state_transition() and read the
					connection flags in set_tcp_state().

ip_vs_conn_expire() gets called, we
unhash the connection from our
connection table and remove the hashed
flag in ip_vs_conn_unhash(), without
proper locking!

					While still holding proper locks we
					write the connection flags in
					set_tcp_state() and this sets the hashed
					flag again.

ip_vs_conn_expire() fails to expire the
connection, because the other CPU has
incremented the reference count. We try
to re-insert the connection into our
connection table, but this fails in
ip_vs_conn_hash(), because the hashed
flag has been set by the other CPU. We
re-schedule execution of
ip_vs_conn_expire(). Now this connection
has the hashed flag set, but isn't
actually hashed in our connection table
and has a dangling list_head.

					We drop the reference we held on the
					connection and schedule the expire timer
					for timeouting the connection on this
					CPU. Further packets won't be able to
					find this connection in our connection
					table.

					ip_vs_conn_expire() gets called again,
					we think it's already hashed, but the
					list_head is dangling and while removing
					the connection from our connection table
					we write to the memory location where
					this list_head points to.

The result will probably be a kernel oops at some other point in time.

This race condition is pretty subtle, but it can be triggered remotely.
It needs the IRQ assignment change or another circumstance where packets
coming from the same ip:port for the same service are being processed on
different CPUs. And it involves hitting the exact time at which
ip_vs_conn_expire() gets called. It can be avoided by making sure that
all packets from one connection are always processed on the same CPU and
can be made harder to exploit by changing the connection timeouts to
some custom values.

Signed-off-by: Sven Wegener <sven.wegener@stealer.net>
Cc: stable@kernel.org
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---
 net/netfilter/ipvs/ip_vs_conn.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index d8f7e8ef67b4..ff04e9edbed6 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -162,6 +162,7 @@ static inline int ip_vs_conn_hash(struct ip_vs_conn *cp)
 	hash = ip_vs_conn_hashkey(cp->af, cp->protocol, &cp->caddr, cp->cport);
 
 	ct_write_lock(hash);
+	spin_lock(&cp->lock);
 
 	if (!(cp->flags & IP_VS_CONN_F_HASHED)) {
 		list_add(&cp->c_list, &ip_vs_conn_tab[hash]);
@@ -174,6 +175,7 @@ static inline int ip_vs_conn_hash(struct ip_vs_conn *cp)
 		ret = 0;
 	}
 
+	spin_unlock(&cp->lock);
 	ct_write_unlock(hash);
 
 	return ret;
@@ -193,6 +195,7 @@ static inline int ip_vs_conn_unhash(struct ip_vs_conn *cp)
 	hash = ip_vs_conn_hashkey(cp->af, cp->protocol, &cp->caddr, cp->cport);
 
 	ct_write_lock(hash);
+	spin_lock(&cp->lock);
 
 	if (cp->flags & IP_VS_CONN_F_HASHED) {
 		list_del(&cp->c_list);
@@ -202,6 +205,7 @@ static inline int ip_vs_conn_unhash(struct ip_vs_conn *cp)
 	} else
 		ret = 0;
 
+	spin_unlock(&cp->lock);
 	ct_write_unlock(hash);
 
 	return ret;
-- 
cgit v1.2.3-55-g7522


From 4673247562e39a17e09440fa1400819522ccd446 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner
Date: Mon, 7 Jun 2010 17:53:51 +0200
Subject: genirq: Deal with desc->set_type() changing desc->chip

The set_type() function can change the chip implementation when the
trigger mode changes. That might result in using an non-initialized
irq chip when called from __setup_irq() or when called via
set_irq_type() on an already enabled irq. 

The set_irq_type() function should not be called on an enabled irq,
but because we forgot to put a check into it, we have a bunch of users
which grew the habit of doing that and it never blew up as the
function is serialized via desc->lock against all users of desc->chip
and they never hit the non-initialized irq chip issue.

The easy fix for the __setup_irq() issue would be to move the
irq_chip_set_defaults(desc->chip) call after the trigger setting to
make sure that a chip change is covered.

But as we have already users, which do the type setting after
request_irq(), the safe fix for now is to call irq_chip_set_defaults()
from __irq_set_trigger() when desc->set_type() changed the irq chip.

It needs a deeper analysis whether we should refuse to change the chip
on an already enabled irq, but that'd be a large scale change to fix
all the existing users. So that's neither stable nor 2.6.35 material.

Reported-by: Esben Haabendal <eha@doredevelopment.dk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev <linuxppc-dev@ozlabs.org>
Cc: stable@kernel.org
---
 kernel/irq/manage.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 3164ba7ce151..e1497481fe8a 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -456,6 +456,9 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned int irq,
 		/* note that IRQF_TRIGGER_MASK == IRQ_TYPE_SENSE_MASK */
 		desc->status &= ~(IRQ_LEVEL | IRQ_TYPE_SENSE_MASK);
 		desc->status |= flags;
+
+		if (chip != desc->chip)
+			irq_chip_set_defaults(desc->chip);
 	}
 
 	return ret;
-- 
cgit v1.2.3-55-g7522


From f5dec51172b81db226a23f309bc737ad021af35b Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov
Date: Wed, 9 Jun 2010 08:13:06 -0700
Subject: Input: sysrq - fix "stuck" SysRq mode

This shoud fix the problem with SysRq mode staying half-way enabled
and interfereing with normal PrtScrn operation after user presses ALT
for the first time.

Reported-and-tested-by: Éric Piel <E.A.B.Piel@tudelft.nl>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/char/sysrq.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 5d15630a5830..5d64e3acb000 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -580,8 +580,12 @@ static bool sysrq_filter(struct input_handle *handle, unsigned int type,
 	case KEY_RIGHTALT:
 		if (value)
 			sysrq_alt = code;
-		else if (sysrq_down && code == sysrq_alt_use)
-			sysrq_down = false;
+		else {
+			if (sysrq_down && code == sysrq_alt_use)
+				sysrq_down = false;
+
+			sysrq_alt = 0;
+		}
 		break;
 
 	case KEY_SYSRQ:
-- 
cgit v1.2.3-55-g7522


From a4384df3e24579d6292a1b3b41d500349948f30b Mon Sep 17 00:00:00 2001
From: Eric W. Biederman
Date: Tue, 8 Jun 2010 11:44:32 -0700
Subject: x86, irq: Rename gsi_end gsi_top, and fix off by one errors

When I introduced the global variable gsi_end I thought gsi_end on
io_apics was one past the end of the gsi range for the io_apic.  After
it was pointed out the the range on io_apics was inclusive I changed
my global variable to match.  That was a big mistake.  Inclusive
semantics without a range start cannot describe the case when no gsi's
are allocated.  Describing the case where no gsi's are allocated is
important in sfi.c and mpparse.c so that we can assign gsi numbers
instead of blindly copying the gsi assignments the BIOS has done as we
do in the acpi case.

To keep from getting the global variable confused with the gsi range
end rename it gsi_top.

To allow describing the case where no gsi's are allocated have gsi_top
be one place the highest gsi number seen in the system.

This fixes an off by one bug in sfi.c:
Reported-by: jacob pan <jacob.jun.pan@linux.intel.com>

This fixes the same off by one bug in mpparse.c:

This fixes an off unreachable by one bug in acpi/boot.c:irq_to_gsi
Reported-by: Yinghai <yinghai.lu@oracle.com>

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
LKML-Reference: <m17hm9jre7.fsf_-_@fess.ebiederm.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/io_apic.h |  4 ++--
 arch/x86/kernel/acpi/boot.c    |  8 ++++----
 arch/x86/kernel/apic/io_apic.c | 12 ++++++------
 arch/x86/kernel/mpparse.c      |  2 +-
 arch/x86/kernel/sfi.c          |  2 +-
 5 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 63cb4096c3dc..9cb2edb87c2f 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -183,7 +183,7 @@ struct mp_ioapic_gsi{
 	u32 gsi_end;
 };
 extern struct mp_ioapic_gsi  mp_gsi_routing[];
-extern u32 gsi_end;
+extern u32 gsi_top;
 int mp_find_ioapic(u32 gsi);
 int mp_find_ioapic_pin(int ioapic, u32 gsi);
 void __init mp_register_ioapic(int id, u32 address, u32 gsi_base);
@@ -197,7 +197,7 @@ static const int timer_through_8259 = 0;
 static inline void ioapic_init_mappings(void)	{ }
 static inline void ioapic_insert_resources(void) { }
 static inline void probe_nr_irqs_gsi(void)	{ }
-#define gsi_end (NR_IRQS_LEGACY - 1)
+#define gsi_top (NR_IRQS_LEGACY)
 static inline int mp_find_ioapic(u32 gsi) { return 0; }
 
 struct io_apic_irq_attr;
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 60cc4058ed5f..c05872aa3ce0 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -118,7 +118,7 @@ static unsigned int gsi_to_irq(unsigned int gsi)
 	if (gsi >= NR_IRQS_LEGACY)
 		irq = gsi;
 	else
-		irq = gsi_end + 1 + gsi;
+		irq = gsi_top + gsi;
 
 	return irq;
 }
@@ -129,10 +129,10 @@ static u32 irq_to_gsi(int irq)
 
 	if (irq < NR_IRQS_LEGACY)
 		gsi = isa_irq_to_gsi[irq];
-	else if (irq <= gsi_end)
+	else if (irq < gsi_top)
 		gsi = irq;
-	else if (irq <= (gsi_end + NR_IRQS_LEGACY))
-		gsi = irq - gsi_end;
+	else if (irq < (gsi_top + NR_IRQS_LEGACY))
+		gsi = irq - gsi_top;
 	else
 		gsi = 0xffffffff;
 
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 33f3563a2a52..e41ed24ab26d 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -89,8 +89,8 @@ int nr_ioapics;
 /* IO APIC gsi routing info */
 struct mp_ioapic_gsi  mp_gsi_routing[MAX_IO_APICS];
 
-/* The last gsi number used */
-u32 gsi_end;
+/* The one past the highest gsi number used */
+u32 gsi_top;
 
 /* MP IRQ source entries */
 struct mpc_intsrc mp_irqs[MAX_IRQ_SOURCES];
@@ -1035,7 +1035,7 @@ static int pin_2_irq(int idx, int apic, int pin)
 		if (gsi >= NR_IRQS_LEGACY)
 			irq = gsi;
 		else
-			irq = gsi_end + 1 + gsi;
+			irq = gsi_top + gsi;
 	}
 
 #ifdef CONFIG_X86_32
@@ -3853,7 +3853,7 @@ void __init probe_nr_irqs_gsi(void)
 {
 	int nr;
 
-	nr = gsi_end + 1 + NR_IRQS_LEGACY;
+	nr = gsi_top + NR_IRQS_LEGACY;
 	if (nr > nr_irqs_gsi)
 		nr_irqs_gsi = nr;
 
@@ -4294,8 +4294,8 @@ void __init mp_register_ioapic(int id, u32 address, u32 gsi_base)
 	 */
 	nr_ioapic_registers[idx] = entries;
 
-	if (mp_gsi_routing[idx].gsi_end > gsi_end)
-		gsi_end = mp_gsi_routing[idx].gsi_end;
+	if (mp_gsi_routing[idx].gsi_end >= gsi_top)
+		gsi_top = mp_gsi_routing[idx].gsi_end + 1;
 
 	printk(KERN_INFO "IOAPIC[%d]: apic_id %d, version %d, address 0x%x, "
 	       "GSI %d-%d\n", idx, mp_ioapics[idx].apicid,
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 5ae5d2426edf..d86dbf7e54be 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -123,7 +123,7 @@ static void __init MP_ioapic_info(struct mpc_ioapic *m)
 	printk(KERN_INFO "I/O APIC #%d Version %d at 0x%X.\n",
 	       m->apicid, m->apicver, m->apicaddr);
 
-	mp_register_ioapic(m->apicid, m->apicaddr, gsi_end + 1);
+	mp_register_ioapic(m->apicid, m->apicaddr, gsi_top);
 }
 
 static void print_MP_intsrc_info(struct mpc_intsrc *m)
diff --git a/arch/x86/kernel/sfi.c b/arch/x86/kernel/sfi.c
index 7ded57896c0a..cb22acf3ed09 100644
--- a/arch/x86/kernel/sfi.c
+++ b/arch/x86/kernel/sfi.c
@@ -93,7 +93,7 @@ static int __init sfi_parse_ioapic(struct sfi_table_header *table)
 	pentry = (struct sfi_apic_table_entry *)sb->pentry;
 
 	for (i = 0; i < num; i++) {
-		mp_register_ioapic(i, pentry->phys_addr, gsi_end + 1);
+		mp_register_ioapic(i, pentry->phys_addr, gsi_top);
 		pentry++;
 	}
 
-- 
cgit v1.2.3-55-g7522


From 75cbfb97a156dd3dabdc81295fb8144576332366 Mon Sep 17 00:00:00 2001
From: Thomas Renninger
Date: Wed, 26 May 2010 17:03:33 +0200
Subject: ACPI: Do not try to set up acpi processor stuff on cores exceeding
 maxcpus=

Patch is against latest Linus master branch and is expected to be
safe bug fix.

You get:
ACPI: HARDWARE addr space,NOT supported yet
for each ACPI defined CPU which status is active, but exceeds
maxcpus= count.

As these "not booted" CPUs do not run an idle routine
and echo X >/proc/acpi/processor/*/throttling did not work
I couldn't find a way to really access not onlined/booted
machines. Still this should get fixed and
/proc/acpi/processor/X dirs of cores exceeding maxcpus
should not show up.

I wonder whether this could get cleaned up by truncating possible cpu mask
and nr_cpu_ids to setup_max_cpus early some day
(and not exporting setup_max_cpus anymore then).
But this needs touching of a lot other places...

Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: travis@sgi.com
CC: linux-acpi@vger.kernel.org
CC: lenb@kernel.org
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/processor_driver.c | 5 +++++
 init/main.c                     | 4 +++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index b1034a9ada4e..38ea0cc6dc49 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -581,6 +581,11 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device)
 		return 0;
 	}
 
+#ifdef CONFIG_SMP
+	if (pr->id >= setup_max_cpus && pr->id != 0)
+		return 0;
+#endif
+
 	BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0));
 
 	/*
diff --git a/init/main.c b/init/main.c
index 3bdb152f412f..ac2e4a5f59ee 100644
--- a/init/main.c
+++ b/init/main.c
@@ -125,7 +125,9 @@ static char *ramdisk_execute_command;
 
 #ifdef CONFIG_SMP
 /* Setup configured maximum number of CPUs to activate */
-unsigned int __initdata setup_max_cpus = NR_CPUS;
+unsigned int setup_max_cpus = NR_CPUS;
+EXPORT_SYMBOL(setup_max_cpus);
+
 
 /*
  * Setup routine for controlling SMP activation
-- 
cgit v1.2.3-55-g7522


From 1d90f2e707e75afdb6b644f774cf5e54dc9c33fc Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo
Date: Wed, 9 Jun 2010 07:13:16 -0300
Subject: perf record: Don't call newt functions when not initialized

When processing events we want to give visual feedback to the user when
using the newt browser, so there are ui_progress calls in
__perf_session__process_events, but those should check if newt is being
used.

Reported-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Tested-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <20100609123530.GB9471@ghostprotocols.net>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/newt.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/newt.c b/tools/perf/util/newt.c
index cf182ca132fe..7537ca15900b 100644
--- a/tools/perf/util/newt.c
+++ b/tools/perf/util/newt.c
@@ -43,6 +43,9 @@ struct ui_progress *ui_progress__new(const char *title, u64 total)
 
 	if (self != NULL) {
 		int cols;
+
+		if (use_browser <= 0)	
+			return self;
 		newtGetScreenSize(&cols, NULL);
 		cols -= 4;
 		newtCenteredWindow(cols, 1, title);
@@ -67,14 +70,22 @@ out_free_self:
 
 void ui_progress__update(struct ui_progress *self, u64 curr)
 {
+	/*
+	 * FIXME: We should have a per UI backend way of showing progress,
+	 * stdio will just show a percentage as NN%, etc.
+	 */
+	if (use_browser <= 0)
+		return;
 	newtScaleSet(self->scale, curr);
 	newtRefresh();
 }
 
 void ui_progress__delete(struct ui_progress *self)
 {
-	newtFormDestroy(self->form);
-	newtPopWindow();
+	if (use_browser > 0) {
+		newtFormDestroy(self->form);
+		newtPopWindow();
+	}
 	free(self);
 }
 
-- 
cgit v1.2.3-55-g7522


From d11007703c31db534674ebeeb9eb047bbbe758bd Mon Sep 17 00:00:00 2001
From: Stephane Eranian
Date: Thu, 10 Jun 2010 13:25:01 +0200
Subject: perf_events: Fix Intel Westmere event constraints

Based on Intel Vol3b (March 2010), the event
SNOOPQ_REQUEST_OUTSTANDING is restricted to counters 0,1 so
update the event table for Intel Westmere accordingly.

Signed-off-by: Stephane Eranian <eranian@google.com>
Cc: peterz@infradead.org
Cc: paulus@samba.org
Cc: davem@davemloft.net
Cc: fweisbec@gmail.com
Cc: perfmon2-devel@lists.sf.net
Cc: eranian@gmail.com
Cc: <stable@kernel.org> # .34.x
LKML-Reference: <4c10cb56.5120e30a.2eb4.ffffc3de@mx.google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/cpu/perf_event_intel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index fdbc652d3feb..214ac860ebe0 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -72,6 +72,7 @@ static struct event_constraint intel_westmere_event_constraints[] =
 	INTEL_EVENT_CONSTRAINT(0x51, 0x3), /* L1D */
 	INTEL_EVENT_CONSTRAINT(0x60, 0x1), /* OFFCORE_REQUESTS_OUTSTANDING */
 	INTEL_EVENT_CONSTRAINT(0x63, 0x3), /* CACHE_LOCK_CYCLES */
+	INTEL_EVENT_CONSTRAINT(0xb3, 0x1), /* SNOOPQ_REQUEST_OUTSTANDING */
 	EVENT_CONSTRAINT_END
 };
 
-- 
cgit v1.2.3-55-g7522


From 856f19145104dcab5b1415c1936c9aa81d83ba04 Mon Sep 17 00:00:00 2001
From: Tero Kristo
Date: Wed, 9 Jun 2010 13:53:05 +0300
Subject: omap: DMTIMER: Ack pending interrupt always when stopping a timer

The kernel timer queue is being run currently from a GP timer running in a one
shot mode, which works in a way that when it expires, it will also stop.
Usually during this situation, the interrupt handler will ack the interrupt,
load a new value to the timer and start it again. During suspend, the
situation is slightly different, as we disable interrupts just before
timekeeping is suspended, which leaves a small window where the timer can
expire before it is stopped, and will leave the interrupt flag pending.
This pending interrupt will prevent ARM sleep entry, thus now we ack it always
when we are attempting to stop a timer.

Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
[tony@atomide.com: removed the ifdef to make the patch cover omap1 also]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/dmtimer.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index c64875f11fac..44bafdab2dce 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -541,11 +541,11 @@ void omap_dm_timer_stop(struct omap_dm_timer *timer)
 		  * timer is stopped
 		  */
 		udelay(3500000 / clk_get_rate(timer->fclk) + 1);
-		/* Ack possibly pending interrupt */
-		omap_dm_timer_write_reg(timer, OMAP_TIMER_STAT_REG,
-				OMAP_TIMER_INT_OVERFLOW);
 #endif
 	}
+	/* Ack possibly pending interrupt */
+	omap_dm_timer_write_reg(timer, OMAP_TIMER_STAT_REG,
+			OMAP_TIMER_INT_OVERFLOW);
 }
 EXPORT_SYMBOL_GPL(omap_dm_timer_stop);
 
-- 
cgit v1.2.3-55-g7522


From f7ec0b0b16c97a75a1b6aa8bc8b32548003f3339 Mon Sep 17 00:00:00 2001
From: Kevin Hilman
Date: Wed, 9 Jun 2010 13:53:07 +0300
Subject: omap: GPIO: fix auto-disable of debounce clock

The addition of the new debounce code (commit
168ef3d9a56bd8bffe0ef4189c450888b4aefefe) broke the auto-disable of
debounce clocks on idle by forgetting to update the debounce clock
enable mask.

Add back the updating of bank->dbck_enable_mask so debounce clocks are
auto-disabled.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/gpio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index 393e9219a5b6..9b7e3545f325 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -673,6 +673,7 @@ static void _set_gpio_debounce(struct gpio_bank *bank, unsigned gpio,
 		if (cpu_is_omap34xx() || cpu_is_omap44xx())
 			clk_disable(bank->dbck);
 	}
+	bank->dbck_enable_mask = val;
 
 	__raw_writel(val, reg);
 }
-- 
cgit v1.2.3-55-g7522


From 0b96a3a3c5c5e6e1b79a05c23d110d59518f4fc8 Mon Sep 17 00:00:00 2001
From: Kevin Hilman
Date: Wed, 9 Jun 2010 13:53:09 +0300
Subject: OMAP3: PM: fix IO daisy chain enable to use PM_WKEN reg

Checking to se if the IO daisy chain is enabled should be checking the
PM_WKEN register, not the PM_WKST register.  Reading PM_WKST tells us
if an event occurred, not whether or not it is enabled.

Apparently, we've been lucky until now in that a pending event has not
been there during enable.  However, on 3630/Zoom3, I noticed because
of the WARN that this timeout was always happening.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/pm34xx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 2e967716cc3f..b88737fd6cfe 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -99,7 +99,7 @@ static void omap3_enable_io_chain(void)
 		/* Do a readback to assure write has been done */
 		prm_read_mod_reg(WKUP_MOD, PM_WKEN);
 
-		while (!(prm_read_mod_reg(WKUP_MOD, PM_WKST) &
+		while (!(prm_read_mod_reg(WKUP_MOD, PM_WKEN) &
 			 OMAP3430_ST_IO_CHAIN_MASK)) {
 			timeout++;
 			if (timeout > 1000) {
@@ -108,7 +108,7 @@ static void omap3_enable_io_chain(void)
 				return;
 			}
 			prm_set_mod_reg_bits(OMAP3430_ST_IO_CHAIN_MASK,
-					     WKUP_MOD, PM_WKST);
+					     WKUP_MOD, PM_WKEN);
 		}
 	}
 }
-- 
cgit v1.2.3-55-g7522


From dd4c4f17d722ffeb2515bf781400675a30fcead7 Mon Sep 17 00:00:00 2001
From: Matthew Garrett
Date: Fri, 28 May 2010 16:32:14 -0400
Subject: suspend: Move NVS save/restore code to generic suspend functionality

Saving platform non-volatile state may be required for suspend to RAM as
well as hibernation. Move it to more generic code.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 arch/x86/kernel/e820.c       |   2 +-
 drivers/acpi/sleep.c         |  12 ++--
 include/linux/suspend.h      |  26 ++++-----
 kernel/power/Kconfig         |   9 +--
 kernel/power/Makefile        |   2 +-
 kernel/power/hibernate_nvs.c | 136 -------------------------------------------
 kernel/power/nvs.c           | 136 +++++++++++++++++++++++++++++++++++++++++++
 kernel/power/suspend.c       |   6 ++
 8 files changed, 168 insertions(+), 161 deletions(-)
 delete mode 100644 kernel/power/hibernate_nvs.c
 create mode 100644 kernel/power/nvs.c

diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 7bca3c6a02fb..0d6fc71bedb1 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -729,7 +729,7 @@ static int __init e820_mark_nvs_memory(void)
 		struct e820entry *ei = &e820.map[i];
 
 		if (ei->type == E820_NVS)
-			hibernate_nvs_register(ei->addr, ei->size);
+			suspend_nvs_register(ei->addr, ei->size);
 	}
 
 	return 0;
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 4ab2275b4461..bcaa6efa8136 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -393,7 +393,7 @@ static int acpi_hibernation_begin(void)
 {
 	int error;
 
-	error = s4_no_nvs ? 0 : hibernate_nvs_alloc();
+	error = s4_no_nvs ? 0 : suspend_nvs_alloc();
 	if (!error) {
 		acpi_target_sleep_state = ACPI_STATE_S4;
 		acpi_sleep_tts_switch(acpi_target_sleep_state);
@@ -407,7 +407,7 @@ static int acpi_hibernation_pre_snapshot(void)
 	int error = acpi_pm_prepare();
 
 	if (!error)
-		hibernate_nvs_save();
+		suspend_nvs_save();
 
 	return error;
 }
@@ -432,7 +432,7 @@ static int acpi_hibernation_enter(void)
 
 static void acpi_hibernation_finish(void)
 {
-	hibernate_nvs_free();
+	suspend_nvs_free();
 	acpi_pm_finish();
 }
 
@@ -452,7 +452,7 @@ static void acpi_hibernation_leave(void)
 		panic("ACPI S4 hardware signature mismatch");
 	}
 	/* Restore the NVS memory area */
-	hibernate_nvs_restore();
+	suspend_nvs_restore();
 }
 
 static int acpi_pm_pre_restore(void)
@@ -501,7 +501,7 @@ static int acpi_hibernation_begin_old(void)
 
 	if (!error) {
 		if (!s4_no_nvs)
-			error = hibernate_nvs_alloc();
+			error = suspend_nvs_alloc();
 		if (!error)
 			acpi_target_sleep_state = ACPI_STATE_S4;
 	}
@@ -513,7 +513,7 @@ static int acpi_hibernation_pre_snapshot_old(void)
 	int error = acpi_pm_disable_gpes();
 
 	if (!error)
-		hibernate_nvs_save();
+		suspend_nvs_save();
 
 	return error;
 }
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 5e781d824e6d..bc7d6bb4cd8e 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -256,22 +256,22 @@ static inline int hibernate(void) { return -ENOSYS; }
 static inline bool system_entering_hibernation(void) { return false; }
 #endif /* CONFIG_HIBERNATION */
 
-#ifdef CONFIG_HIBERNATION_NVS
-extern int hibernate_nvs_register(unsigned long start, unsigned long size);
-extern int hibernate_nvs_alloc(void);
-extern void hibernate_nvs_free(void);
-extern void hibernate_nvs_save(void);
-extern void hibernate_nvs_restore(void);
-#else /* CONFIG_HIBERNATION_NVS */
-static inline int hibernate_nvs_register(unsigned long a, unsigned long b)
+#ifdef CONFIG_SUSPEND_NVS
+extern int suspend_nvs_register(unsigned long start, unsigned long size);
+extern int suspend_nvs_alloc(void);
+extern void suspend_nvs_free(void);
+extern void suspend_nvs_save(void);
+extern void suspend_nvs_restore(void);
+#else /* CONFIG_SUSPEND_NVS */
+static inline int suspend_nvs_register(unsigned long a, unsigned long b)
 {
 	return 0;
 }
-static inline int hibernate_nvs_alloc(void) { return 0; }
-static inline void hibernate_nvs_free(void) {}
-static inline void hibernate_nvs_save(void) {}
-static inline void hibernate_nvs_restore(void) {}
-#endif /* CONFIG_HIBERNATION_NVS */
+static inline int suspend_nvs_alloc(void) { return 0; }
+static inline void suspend_nvs_free(void) {}
+static inline void suspend_nvs_save(void) {}
+static inline void suspend_nvs_restore(void) {}
+#endif /* CONFIG_SUSPEND_NVS */
 
 #ifdef CONFIG_PM_SLEEP
 void save_processor_state(void);
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index 5c36ea9d55d2..ca6066a6952e 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -99,9 +99,13 @@ config PM_SLEEP_ADVANCED_DEBUG
 	depends on PM_ADVANCED_DEBUG
 	default n
 
+config SUSPEND_NVS
+       bool
+
 config SUSPEND
 	bool "Suspend to RAM and standby"
 	depends on PM && ARCH_SUSPEND_POSSIBLE
+	select SUSPEND_NVS if HAS_IOMEM
 	default y
 	---help---
 	  Allow the system to enter sleep states in which main memory is
@@ -130,13 +134,10 @@ config SUSPEND_FREEZER
 
 	  Turning OFF this setting is NOT recommended! If in doubt, say Y.
 
-config HIBERNATION_NVS
-	bool
-
 config HIBERNATION
 	bool "Hibernation (aka 'suspend to disk')"
 	depends on PM && SWAP && ARCH_HIBERNATION_POSSIBLE
-	select HIBERNATION_NVS if HAS_IOMEM
+	select SUSPEND_NVS if HAS_IOMEM
 	---help---
 	  Enable the suspend to disk (STD) functionality, which is usually
 	  called "hibernation" in user interfaces.  STD checkpoints the
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index 524e058dcf06..f9063c6b185d 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -10,6 +10,6 @@ obj-$(CONFIG_SUSPEND)		+= suspend.o
 obj-$(CONFIG_PM_TEST_SUSPEND)	+= suspend_test.o
 obj-$(CONFIG_HIBERNATION)	+= hibernate.o snapshot.o swap.o user.o \
 				   block_io.o
-obj-$(CONFIG_HIBERNATION_NVS)	+= hibernate_nvs.o
+obj-$(CONFIG_SUSPEND_NVS)	+= nvs.o
 
 obj-$(CONFIG_MAGIC_SYSRQ)	+= poweroff.o
diff --git a/kernel/power/hibernate_nvs.c b/kernel/power/hibernate_nvs.c
deleted file mode 100644
index fdcad9ed5a7b..000000000000
--- a/kernel/power/hibernate_nvs.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- * linux/kernel/power/hibernate_nvs.c - Routines for handling NVS memory
- *
- * Copyright (C) 2008,2009 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
- *
- * This file is released under the GPLv2.
- */
-
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
-#include <linux/mm.h>
-#include <linux/slab.h>
-#include <linux/suspend.h>
-
-/*
- * Platforms, like ACPI, may want us to save some memory used by them during
- * hibernation and to restore the contents of this memory during the subsequent
- * resume.  The code below implements a mechanism allowing us to do that.
- */
-
-struct nvs_page {
-	unsigned long phys_start;
-	unsigned int size;
-	void *kaddr;
-	void *data;
-	struct list_head node;
-};
-
-static LIST_HEAD(nvs_list);
-
-/**
- *	hibernate_nvs_register - register platform NVS memory region to save
- *	@start - physical address of the region
- *	@size - size of the region
- *
- *	The NVS region need not be page-aligned (both ends) and we arrange
- *	things so that the data from page-aligned addresses in this region will
- *	be copied into separate RAM pages.
- */
-int hibernate_nvs_register(unsigned long start, unsigned long size)
-{
-	struct nvs_page *entry, *next;
-
-	while (size > 0) {
-		unsigned int nr_bytes;
-
-		entry = kzalloc(sizeof(struct nvs_page), GFP_KERNEL);
-		if (!entry)
-			goto Error;
-
-		list_add_tail(&entry->node, &nvs_list);
-		entry->phys_start = start;
-		nr_bytes = PAGE_SIZE - (start & ~PAGE_MASK);
-		entry->size = (size < nr_bytes) ? size : nr_bytes;
-
-		start += entry->size;
-		size -= entry->size;
-	}
-	return 0;
-
- Error:
-	list_for_each_entry_safe(entry, next, &nvs_list, node) {
-		list_del(&entry->node);
-		kfree(entry);
-	}
-	return -ENOMEM;
-}
-
-/**
- *	hibernate_nvs_free - free data pages allocated for saving NVS regions
- */
-void hibernate_nvs_free(void)
-{
-	struct nvs_page *entry;
-
-	list_for_each_entry(entry, &nvs_list, node)
-		if (entry->data) {
-			free_page((unsigned long)entry->data);
-			entry->data = NULL;
-			if (entry->kaddr) {
-				iounmap(entry->kaddr);
-				entry->kaddr = NULL;
-			}
-		}
-}
-
-/**
- *	hibernate_nvs_alloc - allocate memory necessary for saving NVS regions
- */
-int hibernate_nvs_alloc(void)
-{
-	struct nvs_page *entry;
-
-	list_for_each_entry(entry, &nvs_list, node) {
-		entry->data = (void *)__get_free_page(GFP_KERNEL);
-		if (!entry->data) {
-			hibernate_nvs_free();
-			return -ENOMEM;
-		}
-	}
-	return 0;
-}
-
-/**
- *	hibernate_nvs_save - save NVS memory regions
- */
-void hibernate_nvs_save(void)
-{
-	struct nvs_page *entry;
-
-	printk(KERN_INFO "PM: Saving platform NVS memory\n");
-
-	list_for_each_entry(entry, &nvs_list, node)
-		if (entry->data) {
-			entry->kaddr = ioremap(entry->phys_start, entry->size);
-			memcpy(entry->data, entry->kaddr, entry->size);
-		}
-}
-
-/**
- *	hibernate_nvs_restore - restore NVS memory regions
- *
- *	This function is going to be called with interrupts disabled, so it
- *	cannot iounmap the virtual addresses used to access the NVS region.
- */
-void hibernate_nvs_restore(void)
-{
-	struct nvs_page *entry;
-
-	printk(KERN_INFO "PM: Restoring platform NVS memory\n");
-
-	list_for_each_entry(entry, &nvs_list, node)
-		if (entry->data)
-			memcpy(entry->kaddr, entry->data, entry->size);
-}
diff --git a/kernel/power/nvs.c b/kernel/power/nvs.c
new file mode 100644
index 000000000000..1836db60bbb6
--- /dev/null
+++ b/kernel/power/nvs.c
@@ -0,0 +1,136 @@
+/*
+ * linux/kernel/power/hibernate_nvs.c - Routines for handling NVS memory
+ *
+ * Copyright (C) 2008,2009 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
+ *
+ * This file is released under the GPLv2.
+ */
+
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/suspend.h>
+
+/*
+ * Platforms, like ACPI, may want us to save some memory used by them during
+ * suspend and to restore the contents of this memory during the subsequent
+ * resume.  The code below implements a mechanism allowing us to do that.
+ */
+
+struct nvs_page {
+	unsigned long phys_start;
+	unsigned int size;
+	void *kaddr;
+	void *data;
+	struct list_head node;
+};
+
+static LIST_HEAD(nvs_list);
+
+/**
+ *	suspend_nvs_register - register platform NVS memory region to save
+ *	@start - physical address of the region
+ *	@size - size of the region
+ *
+ *	The NVS region need not be page-aligned (both ends) and we arrange
+ *	things so that the data from page-aligned addresses in this region will
+ *	be copied into separate RAM pages.
+ */
+int suspend_nvs_register(unsigned long start, unsigned long size)
+{
+	struct nvs_page *entry, *next;
+
+	while (size > 0) {
+		unsigned int nr_bytes;
+
+		entry = kzalloc(sizeof(struct nvs_page), GFP_KERNEL);
+		if (!entry)
+			goto Error;
+
+		list_add_tail(&entry->node, &nvs_list);
+		entry->phys_start = start;
+		nr_bytes = PAGE_SIZE - (start & ~PAGE_MASK);
+		entry->size = (size < nr_bytes) ? size : nr_bytes;
+
+		start += entry->size;
+		size -= entry->size;
+	}
+	return 0;
+
+ Error:
+	list_for_each_entry_safe(entry, next, &nvs_list, node) {
+		list_del(&entry->node);
+		kfree(entry);
+	}
+	return -ENOMEM;
+}
+
+/**
+ *	suspend_nvs_free - free data pages allocated for saving NVS regions
+ */
+void suspend_nvs_free(void)
+{
+	struct nvs_page *entry;
+
+	list_for_each_entry(entry, &nvs_list, node)
+		if (entry->data) {
+			free_page((unsigned long)entry->data);
+			entry->data = NULL;
+			if (entry->kaddr) {
+				iounmap(entry->kaddr);
+				entry->kaddr = NULL;
+			}
+		}
+}
+
+/**
+ *	suspend_nvs_alloc - allocate memory necessary for saving NVS regions
+ */
+int suspend_nvs_alloc(void)
+{
+	struct nvs_page *entry;
+
+	list_for_each_entry(entry, &nvs_list, node) {
+		entry->data = (void *)__get_free_page(GFP_KERNEL);
+		if (!entry->data) {
+			suspend_nvs_free();
+			return -ENOMEM;
+		}
+	}
+	return 0;
+}
+
+/**
+ *	suspend_nvs_save - save NVS memory regions
+ */
+void suspend_nvs_save(void)
+{
+	struct nvs_page *entry;
+
+	printk(KERN_INFO "PM: Saving platform NVS memory\n");
+
+	list_for_each_entry(entry, &nvs_list, node)
+		if (entry->data) {
+			entry->kaddr = ioremap(entry->phys_start, entry->size);
+			memcpy(entry->data, entry->kaddr, entry->size);
+		}
+}
+
+/**
+ *	suspend_nvs_restore - restore NVS memory regions
+ *
+ *	This function is going to be called with interrupts disabled, so it
+ *	cannot iounmap the virtual addresses used to access the NVS region.
+ */
+void suspend_nvs_restore(void)
+{
+	struct nvs_page *entry;
+
+	printk(KERN_INFO "PM: Restoring platform NVS memory\n");
+
+	list_for_each_entry(entry, &nvs_list, node)
+		if (entry->data)
+			memcpy(entry->kaddr, entry->data, entry->size);
+}
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 56e7dbb8b996..f37cb7dd4402 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -16,6 +16,12 @@
 #include <linux/cpu.h>
 #include <linux/syscalls.h>
 #include <linux/gfp.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/suspend.h>
 
 #include "power.h"
 
-- 
cgit v1.2.3-55-g7522


From 2a6b69765ad794389f2fc3e14a0afa1a995221c2 Mon Sep 17 00:00:00 2001
From: Matthew Garrett
Date: Fri, 28 May 2010 16:32:15 -0400
Subject: ACPI: Store NVS state even when entering suspend to RAM

https://bugzilla.kernel.org/show_bug.cgi?id=13931 describes a bug where
a system fails to successfully resume after the second suspend. Maxim
Levitsky discovered that this could be rectified by forcibly saving
and restoring the ACPI non-volatile state. The spec indicates that this
is only required for S4, but testing the behaviour of Windows by adding
an ACPI NVS region to qemu's e820 map and registering a custom memory
read/write handler reveals that it's saved and restored even over suspend
to RAM. We should mimic that behaviour to avoid other broken platforms.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/sleep.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index bcaa6efa8136..403daf0fc8a0 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -112,6 +112,8 @@ static int __acpi_pm_prepare(void)
 {
 	int error = acpi_sleep_prepare(acpi_target_sleep_state);
 
+	suspend_nvs_save();
+
 	if (error)
 		acpi_target_sleep_state = ACPI_STATE_S0;
 	return error;
@@ -140,6 +142,8 @@ static void acpi_pm_finish(void)
 {
 	u32 acpi_state = acpi_target_sleep_state;
 
+	suspend_nvs_free();
+
 	if (acpi_state == ACPI_STATE_S0)
 		return;
 
@@ -189,6 +193,11 @@ static int acpi_suspend_begin(suspend_state_t pm_state)
 	u32 acpi_state = acpi_suspend_states[pm_state];
 	int error = 0;
 
+	error = suspend_nvs_alloc();
+
+	if (error)
+		return error;
+
 	if (sleep_states[acpi_state]) {
 		acpi_target_sleep_state = acpi_state;
 		acpi_sleep_tts_switch(acpi_target_sleep_state);
@@ -264,6 +273,8 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 	if (acpi_state == ACPI_STATE_S3)
 		acpi_restore_state_mem();
 
+	suspend_nvs_restore();
+
 	return ACPI_SUCCESS(status) ? 0 : -EFAULT;
 }
 
@@ -430,12 +441,6 @@ static int acpi_hibernation_enter(void)
 	return ACPI_SUCCESS(status) ? 0 : -EFAULT;
 }
 
-static void acpi_hibernation_finish(void)
-{
-	suspend_nvs_free();
-	acpi_pm_finish();
-}
-
 static void acpi_hibernation_leave(void)
 {
 	/*
@@ -473,7 +478,7 @@ static struct platform_hibernation_ops acpi_hibernation_ops = {
 	.begin = acpi_hibernation_begin,
 	.end = acpi_pm_end,
 	.pre_snapshot = acpi_hibernation_pre_snapshot,
-	.finish = acpi_hibernation_finish,
+	.finish = acpi_pm_finish,
 	.prepare = acpi_pm_prepare,
 	.enter = acpi_hibernation_enter,
 	.leave = acpi_hibernation_leave,
@@ -526,7 +531,7 @@ static struct platform_hibernation_ops acpi_hibernation_ops_old = {
 	.begin = acpi_hibernation_begin_old,
 	.end = acpi_pm_end,
 	.pre_snapshot = acpi_hibernation_pre_snapshot_old,
-	.finish = acpi_hibernation_finish,
+	.finish = acpi_pm_finish,
 	.prepare = acpi_pm_disable_gpes,
 	.enter = acpi_hibernation_enter,
 	.leave = acpi_hibernation_leave,
-- 
cgit v1.2.3-55-g7522


From 934231de706d2579fae14f5857fcd8de991009ff Mon Sep 17 00:00:00 2001
From: Liang Li
Date: Thu, 10 Jun 2010 13:42:49 +0800
Subject: ACPI: fan: fix unbalanced code block

The code block braced with CONFIG_ACPI_PROCFS is unblanced. When
CONFIG_ACPI_PROCFS=n, kernel trace will be produced like:

Call Trace:
 [<c111637d>] ? remove_proc_entry+0x20d/0x290
 [<c111637d>] ? remove_proc_entry+0x20d/0x290
 [<c103b02c>] warn_slowpath_common+0x6c/0xc0
 [<c111637d>] ? remove_proc_entry+0x20d/0x290
 [<c103b0c6>] warn_slowpath_fmt+0x26/0x30
 [<c111637d>] remove_proc_entry+0x20d/0x290
 [<c1116bd7>] ? proc_register+0x117/0x1f0
 [<c1116e83>] ? proc_mkdir_mode+0x33/0x50
 [<c14f483c>] ? acpi_fan_init+0x0/0x2c
 [<c14f485f>] acpi_fan_init+0x23/0x2c
 [<c1001123>] do_one_initcall+0x23/0x180
 [<c107dcf7>] ? init_irq_proc+0x67/0x80
 [<c14d43bd>] kernel_init+0x13c/0x20e
 [<c1030e50>] ? schedule_tail+0x20/0x90
 [<c1389e06>] ? syscall_exit+0x5/0x16
 [<c14d4281>] ? kernel_init+0x0/0x20e
 [<c14d4281>] ? kernel_init+0x0/0x20e
 [<c10032f6>] kernel_thread_helper+0x6/0x30
---[ end trace a7919e7f17c0a725 ]---

Then also bracket later error checking code with ACPI_PROCFS
option to avoid mismatch problem.

Signed-off-by: Liang Li <liang.li@windriver.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/fan.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index acf2ab249842..8a3b840c0bb2 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -347,7 +347,6 @@ static int __init acpi_fan_init(void)
 {
 	int result = 0;
 
-
 #ifdef CONFIG_ACPI_PROCFS
 	acpi_fan_dir = proc_mkdir(ACPI_FAN_CLASS, acpi_root_dir);
 	if (!acpi_fan_dir)
@@ -356,7 +355,9 @@ static int __init acpi_fan_init(void)
 
 	result = acpi_bus_register_driver(&acpi_fan_driver);
 	if (result < 0) {
+#ifdef CONFIG_ACPI_PROCFS
 		remove_proc_entry(ACPI_FAN_CLASS, acpi_root_dir);
+#endif
 		return -ENODEV;
 	}
 
-- 
cgit v1.2.3-55-g7522


From 4b1b29bc8801badd243694add02262e0955dde1b Mon Sep 17 00:00:00 2001
From: Zhang Rui
Date: Tue, 8 Jun 2010 15:28:40 +0800
Subject: ACPI: Disable Vista compatibility for Sony VGN-NS50B_L

Disable Vista compatibility for Sony VGN-NS50B_L.
https://bugzilla.kernel.org/show_bug.cgi?id=12904#c46

Note that this change is a workaround, not a permanent fix.
For the permanent fix is to figure out what compatibility
means and to actually be compatible...

Tested-by: Voldemar <harestomper@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/blacklist.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 2815df66f6f7..01381be05e96 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -218,6 +218,14 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 		},
 	},
 	{
+	.callback = dmi_disable_osi_vista,
+	.ident = "VGN-NS50B_L",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "VGN-NS50B_L"),
+		},
+	},
+	{
 	.callback = dmi_disable_osi_win7,
 	.ident = "ASUS K50IJ",
 	.matches = {
-- 
cgit v1.2.3-55-g7522


From 23b764d056bfec0a212a67229074ac281e86e021 Mon Sep 17 00:00:00 2001
From: Andi Kleen
Date: Thu, 10 Jun 2010 13:10:36 +0200
Subject: percpu, x86: Avoid warnings of unused variables in per cpu

Avoid hundreds of warnings with a gcc 4.6 -Wall build.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/include/asm/percpu.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index 0797e748d280..cd28f9ad910d 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -77,6 +77,7 @@ do {							\
 	if (0) {					\
 		pto_T__ pto_tmp__;			\
 		pto_tmp__ = (val);			\
+		(void)pto_tmp__;			\
 	}						\
 	switch (sizeof(var)) {				\
 	case 1:						\
@@ -115,6 +116,7 @@ do {									\
 	if (0) {							\
 		pao_T__ pao_tmp__;					\
 		pao_tmp__ = (val);					\
+		(void)pao_tmp__;					\
 	}								\
 	switch (sizeof(var)) {						\
 	case 1:								\
-- 
cgit v1.2.3-55-g7522


From cf3bdc29fcbf2cb4cfa238591021d41ea8f8431f Mon Sep 17 00:00:00 2001
From: Andi Kleen
Date: Thu, 10 Jun 2010 13:10:40 +0200
Subject: x86, setup: Set ax register in boot vga query

Catch missing conversion to the register structure "glove box" scheme.

Found by gcc 4.6's new warnings.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
LKML-Reference: <20100610111040.F1781B1A2B@basil.firstfloor.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
---
 arch/x86/boot/video-vga.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/boot/video-vga.c b/arch/x86/boot/video-vga.c
index ed7aeff786b2..45bc9402aa49 100644
--- a/arch/x86/boot/video-vga.c
+++ b/arch/x86/boot/video-vga.c
@@ -41,13 +41,12 @@ static __videocard video_vga;
 static u8 vga_set_basic_mode(void)
 {
 	struct biosregs ireg, oreg;
-	u16 ax;
 	u8 mode;
 
 	initregs(&ireg);
 
 	/* Query current mode */
-	ax = 0x0f00;
+	ireg.ax = 0x0f00;
 	intcall(0x10, &ireg, &oreg);
 	mode = oreg.al;
 
-- 
cgit v1.2.3-55-g7522


From 055c47272b8f5679d08ccc57efea3cb4aaeb5fc6 Mon Sep 17 00:00:00 2001
From: Borislav Petkov
Date: Wed, 9 Jun 2010 11:04:16 +0300
Subject: um, hweight: Fix UML boot crash due to x86 optimized hweight

Apparently UML cannot stomach callee reg-saving trickery
introduced with d61931d89be506372d01a90d1755f6d0a9fafe2d
(x86: Add optimized popcnt variants) and oopses during boot:
http://marc.info/?l=linux-kernel&m=127522065202435&w=2

Redirect arch_hweight.h include from the x86 portion to the generic
arch_hweight.h which is a fallback to the software hweight routines.

LKML-Reference: <201005271944.09541.toralf.foerster@gmx.de>
Signed-off-by: Borislav Petkov <bp@alien8.de>
LKML-Reference: <4C0F4B00.4090307@panasas.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/um/include/asm/arch_hweight.h | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 arch/um/include/asm/arch_hweight.h

diff --git a/arch/um/include/asm/arch_hweight.h b/arch/um/include/asm/arch_hweight.h
new file mode 100644
index 000000000000..c656cf443f4a
--- /dev/null
+++ b/arch/um/include/asm/arch_hweight.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_UM_HWEIGHT_H
+#define _ASM_UM_HWEIGHT_H
+
+#include <asm-generic/bitops/arch_hweight.h>
+
+#endif
-- 
cgit v1.2.3-55-g7522


From a8fb2608053547bc3152ea61a5ec7cdfce5d942c Mon Sep 17 00:00:00 2001
From: Steven Rostedt
Date: Thu, 10 Jun 2010 14:53:16 -0400
Subject: perf/tracing: Fix regression of perf losing kprobe events

With the addition of the code to shrink the kernel tracepoint
infrastructure, we lost kprobes being traced by perf. The reason
is that I tested if the "tp_event->class->perf_probe" existed before
enabling it. This prevents "ftrace only" events (like the function
trace events) from being enabled by perf.

Unfortunately, kprobe events do not use perf_probe. This causes
kprobes to be missed by perf. To fix this, we add the test to
see if "tp_event->class->reg" exists as well as perf_probe.

Normal trace events have only "perf_probe" but no "reg" function,
and kprobes and syscalls have the "reg" but no "perf_probe".
The ftrace unique events do not have either, so this is a valid
test. If a kprobe or syscall is not to be probed by perf, the
"reg" function is called anyway, and will return a failure and
prevent perf from probing it.

Reported-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Tested-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace_event_perf.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index e6f65887842c..8a2b73f7c068 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -96,7 +96,9 @@ int perf_trace_init(struct perf_event *p_event)
 	mutex_lock(&event_mutex);
 	list_for_each_entry(tp_event, &ftrace_events, list) {
 		if (tp_event->event.type == event_id &&
-		    tp_event->class && tp_event->class->perf_probe &&
+		    tp_event->class &&
+		    (tp_event->class->perf_probe ||
+		     tp_event->class->reg) &&
 		    try_module_get(tp_event->mod)) {
 			ret = perf_trace_event_init(tp_event, p_event);
 			break;
-- 
cgit v1.2.3-55-g7522


From fbe618f216830f47b183858c3380d4767b1ad02f Mon Sep 17 00:00:00 2001
From: Takashi Iwai
Date: Fri, 11 Jun 2010 11:24:58 +0200
Subject: ALSA: hda - Don't check capture source mixer if no ADC is available

With multiple codec configurations, some codec might have no ADC, thus
it keeps spec->adc_nids = NULL.  This causes an Oops in alc_build_controls().

Reference: kernel bug #16156
	https://bugzilla.kernel.org/show_bug.cgi?id=16156

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index fc767b6b4785..f6cd8ed3272f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2619,16 +2619,18 @@ static int alc_build_controls(struct hda_codec *codec)
 	}
 
 	/* assign Capture Source enums to NID */
-	kctl = snd_hda_find_mixer_ctl(codec, "Capture Source");
-	if (!kctl)
-		kctl = snd_hda_find_mixer_ctl(codec, "Input Source");
-	for (i = 0; kctl && i < kctl->count; i++) {
-		hda_nid_t *nids = spec->capsrc_nids;
-		if (!nids)
-			nids = spec->adc_nids;
-		err = snd_hda_add_nid(codec, kctl, i, nids[i]);
-		if (err < 0)
-			return err;
+	if (spec->capsrc_nids || spec->adc_nids) {
+		kctl = snd_hda_find_mixer_ctl(codec, "Capture Source");
+		if (!kctl)
+			kctl = snd_hda_find_mixer_ctl(codec, "Input Source");
+		for (i = 0; kctl && i < kctl->count; i++) {
+			hda_nid_t *nids = spec->capsrc_nids;
+			if (!nids)
+				nids = spec->adc_nids;
+			err = snd_hda_add_nid(codec, kctl, i, nids[i]);
+			if (err < 0)
+				return err;
+		}
 	}
 	if (spec->cap_mixer) {
 		const char *kname = kctl ? kctl->id.name : NULL;
-- 
cgit v1.2.3-55-g7522


From 7f0e7bed936a0c422641a046551829a01341dd80 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Tue, 8 Jun 2010 18:14:34 +0200
Subject: writeback: fix writeback completion notifications

The code dealing with bdi_work->state and completion of a bdi_work is a
major mess currently.  This patch makes sure we directly use one set of
flags to deal with it, and use it consistently, which means:

 - always notify about completion from the rcu callback.  We only ever
   wait for it from on-stack callers, so this simplification does not
   even cause a theoretical slowdown currently.  It also makes sure we
   don't miss out on the notification if we ever add other callers to
   wait for it.
 - make earlier completion notification depending on the on-stack
   allocation, not the sync mode.  If we introduce new callers that
   want to do WB_SYNC_NONE writeback from on-stack callers this will
   be nessecary.

Also rename bdi_wait_on_work_clear to bdi_wait_on_work_done and inline
a few small functions into their only caller to make the code
understandable.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 fs/fs-writeback.c | 65 +++++++++++++------------------------------------------
 1 file changed, 15 insertions(+), 50 deletions(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 1d1088f48bc2..dbf6f108e868 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -63,24 +63,16 @@ struct bdi_work {
 };
 
 enum {
-	WS_USED_B = 0,
-	WS_ONSTACK_B,
+	WS_INPROGRESS = 0,
+	WS_ONSTACK,
 };
 
-#define WS_USED (1 << WS_USED_B)
-#define WS_ONSTACK (1 << WS_ONSTACK_B)
-
-static inline bool bdi_work_on_stack(struct bdi_work *work)
-{
-	return test_bit(WS_ONSTACK_B, &work->state);
-}
-
 static inline void bdi_work_init(struct bdi_work *work,
 				 struct wb_writeback_args *args)
 {
 	INIT_RCU_HEAD(&work->rcu_head);
 	work->args = *args;
-	work->state = WS_USED;
+	__set_bit(WS_INPROGRESS, &work->state);
 }
 
 /**
@@ -95,43 +87,16 @@ int writeback_in_progress(struct backing_dev_info *bdi)
 	return !list_empty(&bdi->work_list);
 }
 
-static void bdi_work_clear(struct bdi_work *work)
-{
-	clear_bit(WS_USED_B, &work->state);
-	smp_mb__after_clear_bit();
-	/*
-	 * work can have disappeared at this point. bit waitq functions
-	 * should be able to tolerate this, provided bdi_sched_wait does
-	 * not dereference it's pointer argument.
-	*/
-	wake_up_bit(&work->state, WS_USED_B);
-}
-
 static void bdi_work_free(struct rcu_head *head)
 {
 	struct bdi_work *work = container_of(head, struct bdi_work, rcu_head);
 
-	if (!bdi_work_on_stack(work))
-		kfree(work);
-	else
-		bdi_work_clear(work);
-}
-
-static void wb_work_complete(struct bdi_work *work)
-{
-	const enum writeback_sync_modes sync_mode = work->args.sync_mode;
-	int onstack = bdi_work_on_stack(work);
+	clear_bit(WS_INPROGRESS, &work->state);
+	smp_mb__after_clear_bit();
+	wake_up_bit(&work->state, WS_INPROGRESS);
 
-	/*
-	 * For allocated work, we can clear the done/seen bit right here.
-	 * For on-stack work, we need to postpone both the clear and free
-	 * to after the RCU grace period, since the stack could be invalidated
-	 * as soon as bdi_work_clear() has done the wakeup.
-	 */
-	if (!onstack)
-		bdi_work_clear(work);
-	if (sync_mode == WB_SYNC_NONE || onstack)
-		call_rcu(&work->rcu_head, bdi_work_free);
+	if (!test_bit(WS_ONSTACK, &work->state))
+		kfree(work);
 }
 
 static void wb_clear_pending(struct bdi_writeback *wb, struct bdi_work *work)
@@ -147,7 +112,7 @@ static void wb_clear_pending(struct bdi_writeback *wb, struct bdi_work *work)
 		list_del_rcu(&work->list);
 		spin_unlock(&bdi->wb_lock);
 
-		wb_work_complete(work);
+		call_rcu(&work->rcu_head, bdi_work_free);
 	}
 }
 
@@ -185,9 +150,9 @@ static void bdi_queue_work(struct backing_dev_info *bdi, struct bdi_work *work)
  * Used for on-stack allocated work items. The caller needs to wait until
  * the wb threads have acked the work before it's safe to continue.
  */
-static void bdi_wait_on_work_clear(struct bdi_work *work)
+static void bdi_wait_on_work_done(struct bdi_work *work)
 {
-	wait_on_bit(&work->state, WS_USED_B, bdi_sched_wait,
+	wait_on_bit(&work->state, WS_INPROGRESS, bdi_sched_wait,
 		    TASK_UNINTERRUPTIBLE);
 }
 
@@ -234,10 +199,10 @@ static void bdi_sync_writeback(struct backing_dev_info *bdi,
 	struct bdi_work work;
 
 	bdi_work_init(&work, &args);
-	work.state |= WS_ONSTACK;
+	__set_bit(WS_ONSTACK, &work.state);
 
 	bdi_queue_work(bdi, &work);
-	bdi_wait_on_work_clear(&work);
+	bdi_wait_on_work_done(&work);
 }
 
 /**
@@ -911,7 +876,7 @@ long wb_do_writeback(struct bdi_writeback *wb, int force_wait)
 		 * If this isn't a data integrity operation, just notify
 		 * that we have seen this work and we are now starting it.
 		 */
-		if (args.sync_mode == WB_SYNC_NONE)
+		if (!test_bit(WS_ONSTACK, &work->state))
 			wb_clear_pending(wb, work);
 
 		wrote += wb_writeback(wb, &args);
@@ -920,7 +885,7 @@ long wb_do_writeback(struct bdi_writeback *wb, int force_wait)
 		 * This is a data integrity writeback, so only do the
 		 * notification when we have completed the work.
 		 */
-		if (args.sync_mode == WB_SYNC_ALL)
+		if (test_bit(WS_ONSTACK, &work->state))
 			wb_clear_pending(wb, work);
 	}
 
-- 
cgit v1.2.3-55-g7522


From 3c4d716538f3eefb1c1f10961a047a6456a2b590 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Tue, 8 Jun 2010 18:14:43 +0200
Subject: writeback: queue work on stack in writeback_inodes_sb

If we want to rely on s_umount in the caller we need to wait for completion
of the I/O submission before returning to the caller.  Refactor
bdi_sync_writeback into a bdi_queue_work_onstack helper and use it for this
case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 fs/fs-writeback.c | 40 +++++++++++++++++++++-------------------
 1 file changed, 21 insertions(+), 19 deletions(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index dbf6f108e868..759666966c6d 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -178,30 +178,22 @@ static void bdi_alloc_queue_work(struct backing_dev_info *bdi,
 }
 
 /**
- * bdi_sync_writeback - start and wait for writeback
- * @bdi: the backing device to write from
+ * bdi_queue_work_onstack - start and wait for writeback
  * @sb: write inodes from this super_block
  *
  * Description:
- *   This does WB_SYNC_ALL data integrity writeback and waits for the
- *   IO to complete. Callers must hold the sb s_umount semaphore for
+ *   This function initiates writeback and waits for the operation to
+ *   complete. Callers must hold the sb s_umount semaphore for
  *   reading, to avoid having the super disappear before we are done.
  */
-static void bdi_sync_writeback(struct backing_dev_info *bdi,
-			       struct super_block *sb)
+static void bdi_queue_work_onstack(struct wb_writeback_args *args)
 {
-	struct wb_writeback_args args = {
-		.sb		= sb,
-		.sync_mode	= WB_SYNC_ALL,
-		.nr_pages	= LONG_MAX,
-		.range_cyclic	= 0,
-	};
 	struct bdi_work work;
 
-	bdi_work_init(&work, &args);
+	bdi_work_init(&work, args);
 	__set_bit(WS_ONSTACK, &work.state);
 
-	bdi_queue_work(bdi, &work);
+	bdi_queue_work(args->sb->s_bdi, &work);
 	bdi_wait_on_work_done(&work);
 }
 
@@ -944,7 +936,7 @@ int bdi_writeback_task(struct bdi_writeback *wb)
 
 /*
  * Schedule writeback for all backing devices. This does WB_SYNC_NONE
- * writeback, for integrity writeback see bdi_sync_writeback().
+ * writeback, for integrity writeback see bdi_queue_work_onstack().
  */
 static void bdi_writeback_all(struct super_block *sb, long nr_pages)
 {
@@ -1183,12 +1175,15 @@ void writeback_inodes_sb(struct super_block *sb)
 {
 	unsigned long nr_dirty = global_page_state(NR_FILE_DIRTY);
 	unsigned long nr_unstable = global_page_state(NR_UNSTABLE_NFS);
-	long nr_to_write;
+	struct wb_writeback_args args = {
+		.sb		= sb,
+		.sync_mode	= WB_SYNC_NONE,
+	};
 
-	nr_to_write = nr_dirty + nr_unstable +
+	args.nr_pages = nr_dirty + nr_unstable +
 			(inodes_stat.nr_inodes - inodes_stat.nr_unused);
 
-	bdi_start_writeback(sb->s_bdi, sb, nr_to_write);
+	bdi_queue_work_onstack(&args);
 }
 EXPORT_SYMBOL(writeback_inodes_sb);
 
@@ -1218,7 +1213,14 @@ EXPORT_SYMBOL(writeback_inodes_sb_if_idle);
  */
 void sync_inodes_sb(struct super_block *sb)
 {
-	bdi_sync_writeback(sb->s_bdi, sb);
+	struct wb_writeback_args args = {
+		.sb		= sb,
+		.sync_mode	= WB_SYNC_ALL,
+		.nr_pages	= LONG_MAX,
+		.range_cyclic	= 0,
+	};
+
+	bdi_queue_work_onstack(&args);
 	wait_sb_inodes(sb);
 }
 EXPORT_SYMBOL(sync_inodes_sb);
-- 
cgit v1.2.3-55-g7522


From cf37e972478ec58a8a54a6b4f951815f0ae28f78 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Tue, 8 Jun 2010 18:14:51 +0200
Subject: writeback: enforce s_umount locking in writeback_inodes_sb

Make sure that not only sync_filesystem but all callers of writeback_inodes_sb
have the superblock protected against remount.  As-is this disables all
functionality for these callers, but the next patch relies on this locking to
fix writeback_inodes_sb for sync_filesystem.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 fs/fs-writeback.c | 6 ++++++
 fs/ubifs/budget.c | 2 ++
 2 files changed, 8 insertions(+)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 759666966c6d..2627f0dfcd9c 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -1180,6 +1180,8 @@ void writeback_inodes_sb(struct super_block *sb)
 		.sync_mode	= WB_SYNC_NONE,
 	};
 
+	WARN_ON(!rwsem_is_locked(&sb->s_umount));
+
 	args.nr_pages = nr_dirty + nr_unstable +
 			(inodes_stat.nr_inodes - inodes_stat.nr_unused);
 
@@ -1197,7 +1199,9 @@ EXPORT_SYMBOL(writeback_inodes_sb);
 int writeback_inodes_sb_if_idle(struct super_block *sb)
 {
 	if (!writeback_in_progress(sb->s_bdi)) {
+		down_read(&sb->s_umount);
 		writeback_inodes_sb(sb);
+		up_read(&sb->s_umount);
 		return 1;
 	} else
 		return 0;
@@ -1220,6 +1224,8 @@ void sync_inodes_sb(struct super_block *sb)
 		.range_cyclic	= 0,
 	};
 
+	WARN_ON(!rwsem_is_locked(&sb->s_umount));
+
 	bdi_queue_work_onstack(&args);
 	wait_sb_inodes(sb);
 }
diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index 076ca50e9933..c8ff0d1ae5d3 100644
--- a/fs/ubifs/budget.c
+++ b/fs/ubifs/budget.c
@@ -62,7 +62,9 @@
  */
 static void shrink_liability(struct ubifs_info *c, int nr_to_write)
 {
+	down_read(&c->vfs_sb->s_umount);
 	writeback_inodes_sb(c->vfs_sb);
+	up_read(&c->vfs_sb->s_umount);
 }
 
 /**
-- 
cgit v1.2.3-55-g7522


From d19de7edf59cdd586777b009e0e8fbe5412dd35f Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Tue, 8 Jun 2010 18:14:58 +0200
Subject: writeback: fix writeback_inodes_wb from writeback_inodes_sb

When we call writeback_inodes_wb from writeback_inodes_sb we always have
s_umount held, which currently makes the whole operation a no-op.

But if we are called to write out inodes for a specific superblock we always
have s_umount held, so replace the incorrect logic checking for WB_SYNC_ALL
which only worked by coincidence with the proper check for an explicit
superblock argument.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 fs/fs-writeback.c | 61 +++++++++++++++++++++----------------------------------
 1 file changed, 23 insertions(+), 38 deletions(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 2627f0dfcd9c..68ece4b18916 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -518,39 +518,19 @@ select_queue:
 	return ret;
 }
 
-static void unpin_sb_for_writeback(struct super_block *sb)
-{
-	up_read(&sb->s_umount);
-	put_super(sb);
-}
-
-enum sb_pin_state {
-	SB_PINNED,
-	SB_NOT_PINNED,
-	SB_PIN_FAILED
-};
-
 /*
- * For WB_SYNC_NONE writeback, the caller does not have the sb pinned
+ * For background writeback the caller does not have the sb pinned
  * before calling writeback. So make sure that we do pin it, so it doesn't
  * go away while we are writing inodes from it.
  */
-static enum sb_pin_state pin_sb_for_writeback(struct writeback_control *wbc,
-					      struct super_block *sb)
+static bool pin_sb_for_writeback(struct super_block *sb)
 {
-	/*
-	 * Caller must already hold the ref for this
-	 */
-	if (wbc->sync_mode == WB_SYNC_ALL) {
-		WARN_ON(!rwsem_is_locked(&sb->s_umount));
-		return SB_NOT_PINNED;
-	}
 	spin_lock(&sb_lock);
 	sb->s_count++;
 	if (down_read_trylock(&sb->s_umount)) {
 		if (sb->s_root) {
 			spin_unlock(&sb_lock);
-			return SB_PINNED;
+			return true;
 		}
 		/*
 		 * umounted, drop rwsem again and fall through to failure
@@ -559,7 +539,7 @@ static enum sb_pin_state pin_sb_for_writeback(struct writeback_control *wbc,
 	}
 	sb->s_count--;
 	spin_unlock(&sb_lock);
-	return SB_PIN_FAILED;
+	return false;
 }
 
 /*
@@ -638,24 +618,29 @@ static void writeback_inodes_wb(struct bdi_writeback *wb,
 		struct inode *inode = list_entry(wb->b_io.prev,
 						 struct inode, i_list);
 		struct super_block *sb = inode->i_sb;
-		enum sb_pin_state state;
 
-		if (wbc->sb && sb != wbc->sb) {
-			/* super block given and doesn't
-			   match, skip this inode */
-			redirty_tail(inode);
-			continue;
-		}
-		state = pin_sb_for_writeback(wbc, sb);
+		if (wbc->sb) {
+			/*
+			 * We are requested to write out inodes for a specific
+			 * superblock.  This means we already have s_umount
+			 * taken by the caller which also waits for us to
+			 * complete the writeout.
+			 */
+			if (sb != wbc->sb) {
+				redirty_tail(inode);
+				continue;
+			}
 
-		if (state == SB_PIN_FAILED) {
-			requeue_io(inode);
-			continue;
+			WARN_ON(!rwsem_is_locked(&sb->s_umount));
+
+			ret = writeback_sb_inodes(sb, wb, wbc);
+		} else {
+			if (!pin_sb_for_writeback(sb))
+				continue;
+			ret = writeback_sb_inodes(sb, wb, wbc);
+			drop_super(sb);
 		}
-		ret = writeback_sb_inodes(sb, wb, wbc);
 
-		if (state == SB_PINNED)
-			unpin_sb_for_writeback(sb);
 		if (ret)
 			break;
 	}
-- 
cgit v1.2.3-55-g7522


From b8c2f3474f1077599ec6e90c2f263f17055cc3d8 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Tue, 8 Jun 2010 18:15:07 +0200
Subject: writeback: simplify wakeup_flusher_threads

bdi_writeback_all only has one caller, so fold it to simplify the code and
flatten the call stack.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 fs/fs-writeback.c | 32 +++++++++++---------------------
 1 file changed, 11 insertions(+), 21 deletions(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 68ece4b18916..4fcca4f74940 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -920,42 +920,32 @@ int bdi_writeback_task(struct bdi_writeback *wb)
 }
 
 /*
- * Schedule writeback for all backing devices. This does WB_SYNC_NONE
- * writeback, for integrity writeback see bdi_queue_work_onstack().
+ * Start writeback of `nr_pages' pages.  If `nr_pages' is zero, write back
+ * the whole world.
  */
-static void bdi_writeback_all(struct super_block *sb, long nr_pages)
+void wakeup_flusher_threads(long nr_pages)
 {
+	struct backing_dev_info *bdi;
 	struct wb_writeback_args args = {
-		.sb		= sb,
-		.nr_pages	= nr_pages,
 		.sync_mode	= WB_SYNC_NONE,
 	};
-	struct backing_dev_info *bdi;
 
-	rcu_read_lock();
+	if (nr_pages) {
+		args.nr_pages = nr_pages;
+	} else {
+		args.nr_pages = global_page_state(NR_FILE_DIRTY) +
+				global_page_state(NR_UNSTABLE_NFS);
+	}
 
+	rcu_read_lock();
 	list_for_each_entry_rcu(bdi, &bdi_list, bdi_list) {
 		if (!bdi_has_dirty_io(bdi))
 			continue;
-
 		bdi_alloc_queue_work(bdi, &args);
 	}
-
 	rcu_read_unlock();
 }
 
-/*
- * Start writeback of `nr_pages' pages.  If `nr_pages' is zero, write back
- * the whole world.
- */
-void wakeup_flusher_threads(long nr_pages)
-{
-	if (nr_pages == 0)
-		nr_pages = global_page_state(NR_FILE_DIRTY) +
-				global_page_state(NR_UNSTABLE_NFS);
-	bdi_writeback_all(NULL, nr_pages);
-}
-
 static noinline void block_dump___mark_inode_dirty(struct inode *inode)
 {
 	if (inode->i_ino || strcmp(inode->i_sb->s_id, "bdev")) {
-- 
cgit v1.2.3-55-g7522


From c5444198ca210498e8ac0ba121b4cd3537aa12f7 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Tue, 8 Jun 2010 18:15:15 +0200
Subject: writeback: simplify and split bdi_start_writeback

bdi_start_writeback now never gets a superblock passed, so we can just remove
that case.  And to further untangle the code and flatten the call stack
split it into two trivial helpers for it's two callers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 fs/fs-writeback.c           | 32 ++++++++++++++++++++------------
 include/linux/backing-dev.h |  4 ++--
 mm/page-writeback.c         |  5 ++---
 3 files changed, 24 insertions(+), 17 deletions(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 4fcca4f74940..0079bf59b583 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -200,7 +200,6 @@ static void bdi_queue_work_onstack(struct wb_writeback_args *args)
 /**
  * bdi_start_writeback - start writeback
  * @bdi: the backing device to write from
- * @sb: write inodes from this super_block
  * @nr_pages: the number of pages to write
  *
  * Description:
@@ -209,25 +208,34 @@ static void bdi_queue_work_onstack(struct wb_writeback_args *args)
  *   completion. Caller need not hold sb s_umount semaphore.
  *
  */
-void bdi_start_writeback(struct backing_dev_info *bdi, struct super_block *sb,
-			 long nr_pages)
+void bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages)
 {
 	struct wb_writeback_args args = {
-		.sb		= sb,
 		.sync_mode	= WB_SYNC_NONE,
 		.nr_pages	= nr_pages,
 		.range_cyclic	= 1,
 	};
 
-	/*
-	 * We treat @nr_pages=0 as the special case to do background writeback,
-	 * ie. to sync pages until the background dirty threshold is reached.
-	 */
-	if (!nr_pages) {
-		args.nr_pages = LONG_MAX;
-		args.for_background = 1;
-	}
+	bdi_alloc_queue_work(bdi, &args);
+}
 
+/**
+ * bdi_start_background_writeback - start background writeback
+ * @bdi: the backing device to write from
+ *
+ * Description:
+ *   This does WB_SYNC_NONE background writeback. The IO is only
+ *   started when this function returns, we make no guarentees on
+ *   completion. Caller need not hold sb s_umount semaphore.
+ */
+void bdi_start_background_writeback(struct backing_dev_info *bdi)
+{
+	struct wb_writeback_args args = {
+		.sync_mode	= WB_SYNC_NONE,
+		.nr_pages	= LONG_MAX,
+		.for_background = 1,
+		.range_cyclic	= 1,
+	};
 	bdi_alloc_queue_work(bdi, &args);
 }
 
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index aee5f6ce166e..9ae2889096b6 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -105,8 +105,8 @@ int bdi_register(struct backing_dev_info *bdi, struct device *parent,
 int bdi_register_dev(struct backing_dev_info *bdi, dev_t dev);
 void bdi_unregister(struct backing_dev_info *bdi);
 int bdi_setup_and_register(struct backing_dev_info *, char *, unsigned int);
-void bdi_start_writeback(struct backing_dev_info *bdi, struct super_block *sb,
-				long nr_pages);
+void bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages);
+void bdi_start_background_writeback(struct backing_dev_info *bdi);
 int bdi_writeback_task(struct bdi_writeback *wb);
 int bdi_has_dirty_io(struct backing_dev_info *bdi);
 void bdi_arm_supers_timer(void);
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index bbd396ac9546..54f28bd493d3 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -597,7 +597,7 @@ static void balance_dirty_pages(struct address_space *mapping,
 	    (!laptop_mode && ((global_page_state(NR_FILE_DIRTY)
 			       + global_page_state(NR_UNSTABLE_NFS))
 					  > background_thresh)))
-		bdi_start_writeback(bdi, NULL, 0);
+		bdi_start_background_writeback(bdi);
 }
 
 void set_page_dirty_balance(struct page *page, int page_mkwrite)
@@ -705,9 +705,8 @@ void laptop_mode_timer_fn(unsigned long data)
 	 * We want to write everything out, not just down to the dirty
 	 * threshold
 	 */
-
 	if (bdi_has_dirty_io(&q->backing_dev_info))
-		bdi_start_writeback(&q->backing_dev_info, NULL, nr_pages);
+		bdi_start_writeback(&q->backing_dev_info, nr_pages);
 }
 
 /*
-- 
cgit v1.2.3-55-g7522


From 334132ae921a14ac2b2ba48e174136f7f2c9aae1 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Wed, 9 Jun 2010 14:28:43 +0200
Subject: writeback: add missing requeue_io in writeback_inodes_wb

In "writeback: fix writeback_inodes_wb from writeback_inodes_sb" I
accidentally removed the requeue_io if we need to skip a superblock
because we can't pin it.  Add it back, otherwise we're getting spurious
lockups after multiple xfstests runs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 fs/fs-writeback.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 0079bf59b583..3a066e91ec8d 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -643,8 +643,10 @@ static void writeback_inodes_wb(struct bdi_writeback *wb,
 
 			ret = writeback_sb_inodes(sb, wb, wbc);
 		} else {
-			if (!pin_sb_for_writeback(sb))
+			if (!pin_sb_for_writeback(sb)) {
+				requeue_io(inode);
 				continue;
+			}
 			ret = writeback_sb_inodes(sb, wb, wbc);
 			drop_super(sb);
 		}
-- 
cgit v1.2.3-55-g7522


From 29cb48594b873f6193d6327097e504bd3e2314de Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Wed, 9 Jun 2010 15:31:01 +0200
Subject: writeback: fix pin_sb_for_writeback

We need to check for s_instances to make sure we don't bother working
against a filesystem that is beeing unmounted, and we need to call
put_super to make sure a superblock is freed when we race against
umount.  Also no need to keep sb_lock after we got a reference on it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 fs/fs-writeback.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 3a066e91ec8d..0609607d3955 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -534,19 +534,21 @@ select_queue:
 static bool pin_sb_for_writeback(struct super_block *sb)
 {
 	spin_lock(&sb_lock);
+	if (list_empty(&sb->s_instances)) {
+		spin_unlock(&sb_lock);
+		return false;
+	}
+
 	sb->s_count++;
+	spin_unlock(&sb_lock);
+
 	if (down_read_trylock(&sb->s_umount)) {
-		if (sb->s_root) {
-			spin_unlock(&sb_lock);
+		if (sb->s_root)
 			return true;
-		}
-		/*
-		 * umounted, drop rwsem again and fall through to failure
-		 */
 		up_read(&sb->s_umount);
 	}
-	sb->s_count--;
-	spin_unlock(&sb_lock);
+
+	put_super(sb);
 	return false;
 }
 
-- 
cgit v1.2.3-55-g7522


From d07140ba7fe1b41713627c6dc3f169a00019fb0e Mon Sep 17 00:00:00 2001
From: Daniel Mack
Date: Fri, 11 Jun 2010 17:34:19 +0200
Subject: ALSA: usb-audio: add check for faulty clock in
 parse_audio_format_rates_v2()

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/format.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/usb/format.c b/sound/usb/format.c
index 5367cd1e52d9..df5b29fed000 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -218,6 +218,12 @@ static int parse_audio_format_rates_v2(struct snd_usb_audio *chip,
 	int i, nr_rates, data_size, ret = 0;
 	int clock = snd_usb_clock_find_source(chip, chip->ctrl_intf, fp->clock);
 
+	if (clock < 0) {
+		snd_printk(KERN_ERR "%s(): unable to find clock source (clock %d)\n",
+				__func__, clock);
+		goto err;
+	}
+
 	/* get the number of sample rates first by only fetching 2 bytes */
 	ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE,
 			      USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
-- 
cgit v1.2.3-55-g7522


From 11bcbc443a17653c65bc20029172fae76f4bcca4 Mon Sep 17 00:00:00 2001
From: Daniel Mack
Date: Fri, 11 Jun 2010 17:34:20 +0200
Subject: ALSA: usb-audio: fix control messages for USB_RECIP_INTERFACE

Control messages directed to an interface must have the interface number
set in the lower 8 bits of wIndex. This wasn't done correctly for some
clock and mixer messages.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Reported-by: Alex Lee <alexlee188@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/clock.c  | 12 ++++++++----
 sound/usb/format.c |  6 ++++--
 sound/usb/helper.h |  4 ++++
 3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/sound/usb/clock.c b/sound/usb/clock.c
index b7aadd614c70..b5855114667e 100644
--- a/sound/usb/clock.c
+++ b/sound/usb/clock.c
@@ -103,7 +103,8 @@ static int uac_clock_selector_get_val(struct snd_usb_audio *chip, int selector_i
 	ret = snd_usb_ctl_msg(chip->dev, usb_rcvctrlpipe(chip->dev, 0),
 			      UAC2_CS_CUR,
 			      USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
-			      UAC2_CX_CLOCK_SELECTOR << 8, selector_id << 8,
+			      UAC2_CX_CLOCK_SELECTOR << 8,
+			      snd_usb_ctrl_intf(chip) | (selector_id << 8),
 			      &buf, sizeof(buf), 1000);
 
 	if (ret < 0)
@@ -120,7 +121,8 @@ static bool uac_clock_source_is_valid(struct snd_usb_audio *chip, int source_id)
 
 	err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR,
 			      USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
-			      UAC2_CS_CONTROL_CLOCK_VALID << 8, source_id << 8,
+			      UAC2_CS_CONTROL_CLOCK_VALID << 8,
+			      snd_usb_ctrl_intf(chip) | (source_id << 8),
 			      &data, sizeof(data), 1000);
 
 	if (err < 0) {
@@ -269,7 +271,8 @@ static int set_sample_rate_v2(struct snd_usb_audio *chip, int iface,
 	data[3] = rate >> 24;
 	if ((err = snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), UAC2_CS_CUR,
 				   USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
-				   UAC2_CS_CONTROL_SAM_FREQ << 8, clock << 8,
+				   UAC2_CS_CONTROL_SAM_FREQ << 8,
+				   snd_usb_ctrl_intf(chip) | (clock << 8),
 				   data, sizeof(data), 1000)) < 0) {
 		snd_printk(KERN_ERR "%d:%d:%d: cannot set freq %d (v2)\n",
 			   dev->devnum, iface, fmt->altsetting, rate);
@@ -278,7 +281,8 @@ static int set_sample_rate_v2(struct snd_usb_audio *chip, int iface,
 
 	if ((err = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_CUR,
 				   USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
-				   UAC2_CS_CONTROL_SAM_FREQ << 8, clock << 8,
+				   UAC2_CS_CONTROL_SAM_FREQ << 8,
+				   snd_usb_ctrl_intf(chip) | (clock << 8),
 				   data, sizeof(data), 1000)) < 0) {
 		snd_printk(KERN_WARNING "%d:%d:%d: cannot get freq (v2)\n",
 			   dev->devnum, iface, fmt->altsetting);
diff --git a/sound/usb/format.c b/sound/usb/format.c
index df5b29fed000..8eccf17a4ac6 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -227,7 +227,8 @@ static int parse_audio_format_rates_v2(struct snd_usb_audio *chip,
 	/* get the number of sample rates first by only fetching 2 bytes */
 	ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE,
 			      USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
-			      UAC2_CS_CONTROL_SAM_FREQ << 8, clock << 8,
+			      UAC2_CS_CONTROL_SAM_FREQ << 8,
+			      snd_usb_ctrl_intf(chip) | (clock << 8),
 			      tmp, sizeof(tmp), 1000);
 
 	if (ret < 0) {
@@ -247,7 +248,8 @@ static int parse_audio_format_rates_v2(struct snd_usb_audio *chip,
 	/* now get the full information */
 	ret = snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), UAC2_CS_RANGE,
 			      USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
-			      UAC2_CS_CONTROL_SAM_FREQ << 8, clock << 8,
+			      UAC2_CS_CONTROL_SAM_FREQ << 8,
+			      snd_usb_ctrl_intf(chip) | (clock << 8),
 			      data, data_size, 1000);
 
 	if (ret < 0) {
diff --git a/sound/usb/helper.h b/sound/usb/helper.h
index a6b0e51b3a9a..09bd943c43bf 100644
--- a/sound/usb/helper.h
+++ b/sound/usb/helper.h
@@ -28,5 +28,9 @@ unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip,
 #define snd_usb_get_speed(dev) ((dev)->speed)
 #endif
 
+static inline int snd_usb_ctrl_intf(struct snd_usb_audio *chip)
+{
+	return get_iface_desc(chip->ctrl_intf)->bInterfaceNumber;
+}
 
 #endif /* __USBAUDIO_HELPER_H */
-- 
cgit v1.2.3-55-g7522


From 67c103664a06fa590f2990c01773dfa1dffcefdc Mon Sep 17 00:00:00 2001
From: Daniel Mack
Date: Fri, 11 Jun 2010 17:46:33 +0200
Subject: ALSA: usb-audio: parse UAC2 sample rate ranges correctly

A device may report its supported sample rates in ranges rather than in
discrete triplets. The code used to only parse the MIN field instead of
properly paying attention to the MAX and RES values.

Also, handle RES values of 1 correctly and announce a continous sample
rate range in this case.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Reported-by: Alex Lee <alexlee188@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/format.c | 92 +++++++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 74 insertions(+), 18 deletions(-)

diff --git a/sound/usb/format.c b/sound/usb/format.c
index 8eccf17a4ac6..30364aba79cc 100644
--- a/sound/usb/format.c
+++ b/sound/usb/format.c
@@ -205,6 +205,60 @@ static int parse_audio_format_rates_v1(struct snd_usb_audio *chip, struct audiof
 	return 0;
 }
 
+/*
+ * Helper function to walk the array of sample rate triplets reported by
+ * the device. The problem is that we need to parse whole array first to
+ * get to know how many sample rates we have to expect.
+ * Then fp->rate_table can be allocated and filled.
+ */
+static int parse_uac2_sample_rate_range(struct audioformat *fp, int nr_triplets,
+					const unsigned char *data)
+{
+	int i, nr_rates = 0;
+
+	fp->rates = fp->rate_min = fp->rate_max = 0;
+
+	for (i = 0; i < nr_triplets; i++) {
+		int min = combine_quad(&data[2 + 12 * i]);
+		int max = combine_quad(&data[6 + 12 * i]);
+		int res = combine_quad(&data[10 + 12 * i]);
+		int rate;
+
+		if ((max < 0) || (min < 0) || (res < 0) || (max < min))
+			continue;
+
+		/*
+		 * for ranges with res == 1, we announce a continuous sample
+		 * rate range, and this function should return 0 for no further
+		 * parsing.
+		 */
+		if (res == 1) {
+			fp->rate_min = min;
+			fp->rate_max = max;
+			fp->rates = SNDRV_PCM_RATE_CONTINUOUS;
+			return 0;
+		}
+
+		for (rate = min; rate <= max; rate += res) {
+			if (fp->rate_table)
+				fp->rate_table[nr_rates] = rate;
+			if (!fp->rate_min || rate < fp->rate_min)
+				fp->rate_min = rate;
+			if (!fp->rate_max || rate > fp->rate_max)
+				fp->rate_max = rate;
+			fp->rates |= snd_pcm_rate_to_rate_bit(rate);
+
+			nr_rates++;
+
+			/* avoid endless loop */
+			if (res == 0)
+				break;
+		}
+	}
+
+	return nr_rates;
+}
+
 /*
  * parse the format descriptor and stores the possible sample rates
  * on the audioformat table (audio class v2).
@@ -215,7 +269,7 @@ static int parse_audio_format_rates_v2(struct snd_usb_audio *chip,
 {
 	struct usb_device *dev = chip->dev;
 	unsigned char tmp[2], *data;
-	int i, nr_rates, data_size, ret = 0;
+	int nr_triplets, data_size, ret = 0;
 	int clock = snd_usb_clock_find_source(chip, chip->ctrl_intf, fp->clock);
 
 	if (clock < 0) {
@@ -237,8 +291,8 @@ static int parse_audio_format_rates_v2(struct snd_usb_audio *chip,
 		goto err;
 	}
 
-	nr_rates = (tmp[1] << 8) | tmp[0];
-	data_size = 2 + 12 * nr_rates;
+	nr_triplets = (tmp[1] << 8) | tmp[0];
+	data_size = 2 + 12 * nr_triplets;
 	data = kzalloc(data_size, GFP_KERNEL);
 	if (!data) {
 		ret = -ENOMEM;
@@ -259,26 +313,28 @@ static int parse_audio_format_rates_v2(struct snd_usb_audio *chip,
 		goto err_free;
 	}
 
-	fp->rate_table = kmalloc(sizeof(int) * nr_rates, GFP_KERNEL);
+	/* Call the triplet parser, and make sure fp->rate_table is NULL.
+	 * We just use the return value to know how many sample rates we
+	 * will have to deal with. */
+	kfree(fp->rate_table);
+	fp->rate_table = NULL;
+	fp->nr_rates = parse_uac2_sample_rate_range(fp, nr_triplets, data);
+
+	if (fp->nr_rates == 0) {
+		/* SNDRV_PCM_RATE_CONTINUOUS */
+		ret = 0;
+		goto err_free;
+	}
+
+	fp->rate_table = kmalloc(sizeof(int) * fp->nr_rates, GFP_KERNEL);
 	if (!fp->rate_table) {
 		ret = -ENOMEM;
 		goto err_free;
 	}
 
-	fp->nr_rates = 0;
-	fp->rate_min = fp->rate_max = 0;
-
-	for (i = 0; i < nr_rates; i++) {
-		int rate = combine_quad(&data[2 + 12 * i]);
-
-		fp->rate_table[fp->nr_rates] = rate;
-		if (!fp->rate_min || rate < fp->rate_min)
-			fp->rate_min = rate;
-		if (!fp->rate_max || rate > fp->rate_max)
-			fp->rate_max = rate;
-		fp->rates |= snd_pcm_rate_to_rate_bit(rate);
-		fp->nr_rates++;
-	}
+	/* Call the triplet parser again, but this time, fp->rate_table is
+	 * allocated, so the rates will be stored */
+	parse_uac2_sample_rate_range(fp, nr_triplets, data);
 
 err_free:
 	kfree(data);
-- 
cgit v1.2.3-55-g7522


From e8bdb6bbab60a8731f21823c86391f176d052348 Mon Sep 17 00:00:00 2001
From: Daniel Mack
Date: Fri, 11 Jun 2010 17:34:22 +0200
Subject: ALSA: usb-audio: fix UAC2 control value queries

For RANGE requests, we should only query as much bytes as we're in fact
interested in.

For CUR requests, we shouldn't confuse the firmware with an overlong
request but just ask for 2 bytes.

This might need fixing in the future as it's not entirely clear when to
dispatch 1-byte, 2-byte and 4-byte request blocks. For now, we assume
everything is coded in 16bit - this works for all firmware
implementations I've seen.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Reported-by: Alex Lee <alexlee188@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/mixer.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index a060d005e209..6939d0f517d9 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -297,20 +297,27 @@ static int get_ctl_value_v1(struct usb_mixer_elem_info *cval, int request, int v
 
 static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int validx, int *value_ret)
 {
-	unsigned char buf[14]; /* enough space for one range of 4 bytes */
+	unsigned char buf[2 + 3*sizeof(__u16)]; /* enough space for one range */
 	unsigned char *val;
-	int ret;
+	int ret, size;
 	__u8 bRequest;
 
-	bRequest = (request == UAC_GET_CUR) ?
-		UAC2_CS_CUR : UAC2_CS_RANGE;
+	if (request == UAC_GET_CUR) {
+		bRequest = UAC2_CS_CUR;
+		size = sizeof(__u16);
+	} else {
+		bRequest = UAC2_CS_RANGE;
+		size = sizeof(buf);
+	}
+
+	memset(buf, 0, sizeof(buf));
 
 	ret = snd_usb_ctl_msg(cval->mixer->chip->dev,
 			      usb_rcvctrlpipe(cval->mixer->chip->dev, 0),
 			      bRequest,
 			      USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_IN,
 			      validx, cval->mixer->ctrlif | (cval->id << 8),
-			      buf, sizeof(buf), 1000);
+			      buf, size, 1000);
 
 	if (ret < 0) {
 		snd_printk(KERN_ERR "cannot get ctl value: req = %#x, wValue = %#x, wIndex = %#x, type = %d\n",
@@ -318,6 +325,8 @@ static int get_ctl_value_v2(struct usb_mixer_elem_info *cval, int request, int v
 		return ret;
 	}
 
+	/* FIXME: how should we handle multiple triplets here? */
+
 	switch (request) {
 	case UAC_GET_CUR:
 		val = buf;
-- 
cgit v1.2.3-55-g7522


From 6a4f3b523779b67e7d560ed42652f8a59f2f9782 Mon Sep 17 00:00:00 2001
From: Venkatesh Pallipadi
Date: Thu, 10 Jun 2010 17:45:01 -0700
Subject: x86, pat: Proper init of memtype subtree_max_end

subtree_max_end that was recently added to struct memtype was not getting
properly initialized resulting in

WARNING: kmemcheck: Caught 64-bit read from uninitialized memory
in memtype_rb_augment_cb()
reported here
https://bugzilla.kernel.org/show_bug.cgi?id=16092

This change fixes the problem.

Reported-by: Christian Casteyde <casteyde.christian@free.fr>
Tested-by: Christian Casteyde <casteyde.christian@free.fr>
Signed-off-by: Venkatesh Pallipadi <venki@google.com>
LKML-Reference: <1276217101-11515-1-git-send-email-venki@google.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
---
 arch/x86/mm/pat.c        | 2 +-
 arch/x86/mm/pat_rbtree.c | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index acc15b23b743..64121a18b8cb 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -302,7 +302,7 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type,
 		return -EINVAL;
 	}
 
-	new  = kmalloc(sizeof(struct memtype), GFP_KERNEL);
+	new  = kzalloc(sizeof(struct memtype), GFP_KERNEL);
 	if (!new)
 		return -ENOMEM;
 
diff --git a/arch/x86/mm/pat_rbtree.c b/arch/x86/mm/pat_rbtree.c
index f537087bb740..f20eeec85a86 100644
--- a/arch/x86/mm/pat_rbtree.c
+++ b/arch/x86/mm/pat_rbtree.c
@@ -226,6 +226,7 @@ int rbt_memtype_check_insert(struct memtype *new, unsigned long *ret_type)
 		if (ret_type)
 			new->type = *ret_type;
 
+		new->subtree_max_end = new->end;
 		memtype_rb_insert(&memtype_rbroot, new);
 	}
 	return err;
-- 
cgit v1.2.3-55-g7522


From 1c938663d58b5b2965976a6f54cc51b5d6f691aa Mon Sep 17 00:00:00 2001
From: Krzysztof Halasa
Date: Fri, 11 Jun 2010 01:08:20 +0200
Subject: kbuild: Fix modpost segfault

Alan <alan@clueserver.org> writes:

> program: /home/alan/GitTrees/linux-2.6-mid-ref/scripts/mod/modpost -o
> Module.symvers -S vmlinux.o
>
> Program received signal SIGSEGV, Segmentation fault.

It just hit me.
It's the offset calculation in reloc_location() which overflows:
        return (void *)elf->hdr + sechdrs[section].sh_offset +
               (r->r_offset - sechdrs[section].sh_addr);

E.g. for the first rodata r entry:
r->r_offset < sechdrs[section].sh_addr
and the expression in the parenthesis produces 0xFFFFFFE0 or something
equally wise.

Reported-by: Alan <alan@clueserver.org>
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Tested-by: Alan <alan@clueserver.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/mod/modpost.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 3318692e4e76..f8779006986d 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1342,7 +1342,7 @@ static unsigned int *reloc_location(struct elf_info *elf,
 	int section = sechdr->sh_info;
 
 	return (void *)elf->hdr + sechdrs[section].sh_offset +
-		(r->r_offset - sechdrs[section].sh_addr);
+		r->r_offset - sechdrs[section].sh_addr;
 }
 
 static int addend_386_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)
-- 
cgit v1.2.3-55-g7522


From a997ab332832519c2e292db13f509e4360495a5a Mon Sep 17 00:00:00 2001
From: Rafael J. Wysocki
Date: Sat, 12 Jun 2010 00:05:19 +0200
Subject: ACPI / ACPICA: Do not attempt to disable GPE when installing handler

Commit 0f849d2cc6863c7874889ea60a871fb71399dd3f (ACPICA: Minimize
the differences between linux GPE code and ACPICA code base)
introduced a change attempting to disable a GPE before installing
a handler for it in acpi_install_gpe_handler() which was incorrect.
First, the GPE disabled by it is never enabled again (except during
resume) which leads to battery insert/remove events not being
reported on the Maxim Levitsky's machine.  Second, the disabled
GPE is still reported as enabled by the sysfs interface that only
checks its enable register's enable_for_run mask.

Revert this change for now, because it causes more damage to happen
than the bug it was supposed to fix.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-and-tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpica/evxface.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index cc825023012a..4a531cdf7942 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -719,13 +719,6 @@ acpi_install_gpe_handler(acpi_handle gpe_device,
 	handler->context = context;
 	handler->method_node = gpe_event_info->dispatch.method_node;
 
-	/* Disable the GPE before installing the handler */
-
-	status = acpi_ev_disable_gpe(gpe_event_info);
-	if (ACPI_FAILURE (status)) {
-		goto unlock_and_exit;
-	}
-
 	/* Install the handler */
 
 	flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
-- 
cgit v1.2.3-55-g7522


From e4e9a735991c80fb0fc1bd4a13a93681c3c17ce0 Mon Sep 17 00:00:00 2001
From: Rafael J. Wysocki
Date: Tue, 8 Jun 2010 10:48:26 +0200
Subject: ACPI / ACPICA: Use helper function for computing GPE masks

In quite a few places ACPICA needs to compute a GPE enable mask with
only one bit, corresponding to a given GPE, set.  Currently, that
computation is always open coded which leads to unnecessary code
duplication.  Fix this by introducing a helper function for computing
one-bit GPE enable masks and using it where appropriate.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpica/achware.h |  3 +++
 drivers/acpi/acpica/evgpe.c   |  7 +++---
 drivers/acpi/acpica/hwgpe.c   | 52 +++++++++++++++++++++++++++++++++----------
 3 files changed, 46 insertions(+), 16 deletions(-)

diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index 5900f135dc6d..c46277d179f0 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -90,6 +90,9 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width);
 /*
  * hwgpe - GPE support
  */
+u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info,
+			     struct acpi_gpe_register_info *gpe_register_info);
+
 acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info);
 
 acpi_status
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index deb26f4c6623..57eeb3bde41e 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -69,7 +69,7 @@ acpi_status
 acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info)
 {
 	struct acpi_gpe_register_info *gpe_register_info;
-	u8 register_bit;
+	u32 register_bit;
 
 	ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks);
 
@@ -78,9 +78,8 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info)
 		return_ACPI_STATUS(AE_NOT_EXIST);
 	}
 
-	register_bit = (u8)
-	    (1 <<
-	     (gpe_event_info->gpe_number - gpe_register_info->base_gpe_number));
+	register_bit = acpi_hw_gpe_register_bit(gpe_event_info,
+						gpe_register_info);
 
 	/* Clear the wake/run bits up front */
 
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index bd72319a38f0..d989b8e786cc 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -55,6 +55,27 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 				struct acpi_gpe_block_info *gpe_block,
 				void *context);
 
+/******************************************************************************
+ *
+ * FUNCTION:	acpi_hw_gpe_register_bit
+ *
+ * PARAMETERS:	gpe_event_info	    - Info block for the GPE
+ *		gpe_register_info   - Info block for the GPE register
+ *
+ * RETURN:	Status
+ *
+ * DESCRIPTION:	Compute GPE enable mask with one bit corresponding to the given
+ *		GPE set.
+ *
+ ******************************************************************************/
+
+u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info,
+			     struct acpi_gpe_register_info *gpe_register_info)
+{
+	return (u32)1 << (gpe_event_info->gpe_number -
+				gpe_register_info->base_gpe_number);
+}
+
 /******************************************************************************
  *
  * FUNCTION:	acpi_hw_low_disable_gpe
@@ -72,6 +93,7 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
 	struct acpi_gpe_register_info *gpe_register_info;
 	acpi_status status;
 	u32 enable_mask;
+	u32 register_bit;
 
 	/* Get the info block for the entire GPE register */
 
@@ -89,9 +111,9 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
 
 	/* Clear just the bit that corresponds to this GPE */
 
-	ACPI_CLEAR_BIT(enable_mask, ((u32)1 <<
-				     (gpe_event_info->gpe_number -
-				      gpe_register_info->base_gpe_number)));
+	register_bit = acpi_hw_gpe_register_bit(gpe_event_info,
+						gpe_register_info);
+	ACPI_CLEAR_BIT(enable_mask, register_bit);
 
 	/* Write the updated enable mask */
 
@@ -150,21 +172,28 @@ acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info)
 
 acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info)
 {
+	struct acpi_gpe_register_info *gpe_register_info;
 	acpi_status status;
-	u8 register_bit;
+	u32 register_bit;
 
 	ACPI_FUNCTION_ENTRY();
 
-	register_bit = (u8)(1 <<
-			    (gpe_event_info->gpe_number -
-			     gpe_event_info->register_info->base_gpe_number));
+	/* Get the info block for the entire GPE register */
+
+	gpe_register_info = gpe_event_info->register_info;
+	if (!gpe_register_info) {
+		return (AE_NOT_EXIST);
+	}
+
+	register_bit = acpi_hw_gpe_register_bit(gpe_event_info,
+						gpe_register_info);
 
 	/*
 	 * Write a one to the appropriate bit in the status register to
 	 * clear this GPE.
 	 */
 	status = acpi_hw_write(register_bit,
-			       &gpe_event_info->register_info->status_address);
+			       &gpe_register_info->status_address);
 
 	return (status);
 }
@@ -187,7 +216,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
 		       acpi_event_status * event_status)
 {
 	u32 in_byte;
-	u8 register_bit;
+	u32 register_bit;
 	struct acpi_gpe_register_info *gpe_register_info;
 	acpi_status status;
 	acpi_event_status local_event_status = 0;
@@ -204,9 +233,8 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
 
 	/* Get the register bitmask for this GPE */
 
-	register_bit = (u8)(1 <<
-			    (gpe_event_info->gpe_number -
-			     gpe_event_info->register_info->base_gpe_number));
+	register_bit = acpi_hw_gpe_register_bit(gpe_event_info,
+						gpe_register_info);
 
 	/* GPE currently enabled? (enabled for runtime?) */
 
-- 
cgit v1.2.3-55-g7522


From ed0e3ace576d297a5c7015401db1060bbf677b94 Mon Sep 17 00:00:00 2001
From: Jeff Layton
Date: Tue, 1 Jun 2010 16:21:01 -0400
Subject: cifs: don't attempt busy-file rename unless it's in same directory

Busy-file renames don't actually work across directories, so we need
to limit this code to renames within the same dir.

This fixes the bug detailed here:

    https://bugzilla.redhat.com/show_bug.cgi?id=591938

Signed-off-by: Jeff Layton <jlayton@redhat.com>
CC: Stable <stable@kernel.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
---
 fs/cifs/inode.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 62b324f26a56..6f0683c68952 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1401,6 +1401,10 @@ cifs_do_rename(int xid, struct dentry *from_dentry, const char *fromPath,
 	if (rc == 0 || rc != -ETXTBSY)
 		return rc;
 
+	/* open-file renames don't work across directories */
+	if (to_dentry->d_parent != from_dentry->d_parent)
+		return rc;
+
 	/* open the file to be renamed -- we need DELETE perms */
 	rc = CIFSSMBOpen(xid, pTcon, fromPath, FILE_OPEN, DELETE,
 			 CREATE_NOT_DIR, &srcfid, &oplock, NULL,
-- 
cgit v1.2.3-55-g7522


From 12420ac341533f3715b3deb788637568f22b78ff Mon Sep 17 00:00:00 2001
From: Jeff Layton
Date: Tue, 1 Jun 2010 14:47:40 -0400
Subject: cifs: implement drop_inode superblock op

The standard behavior for drop_inode is to delete the inode when the
last reference to it is put and the nlink count goes to 0. This helps
keep inodes that are still considered "not deleted" in cache as long as
possible even when there aren't dentries attached to them.

When server inode numbers are disabled, it's not possible for cifs_iget
to ever match an existing inode (since inode numbers are generated via
iunique). In this situation, cifs can keep a lot of inodes in cache that
will never be used again.

Implement a drop_inode routine that deletes the inode if server inode
numbers are disabled on the mount. This helps keep the cifs inode
caches down to a more manageable size when server inode numbers are
disabled.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
---
 fs/cifs/cifsfs.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 78c02eb4cb1f..484e52bb40bb 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -473,14 +473,24 @@ static int cifs_remount(struct super_block *sb, int *flags, char *data)
 	return 0;
 }
 
+void cifs_drop_inode(struct inode *inode)
+{
+	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+
+	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)
+		return generic_drop_inode(inode);
+
+	return generic_delete_inode(inode);
+}
+
 static const struct super_operations cifs_super_ops = {
 	.put_super = cifs_put_super,
 	.statfs = cifs_statfs,
 	.alloc_inode = cifs_alloc_inode,
 	.destroy_inode = cifs_destroy_inode,
-/*	.drop_inode	    = generic_delete_inode,
-	.delete_inode	= cifs_delete_inode,  */  /* Do not need above two
-	functions unless later we add lazy close of inodes or unless the
+	.drop_inode	= cifs_drop_inode,
+/*	.delete_inode	= cifs_delete_inode,  */  /* Do not need above
+	function unless later we add lazy close of inodes or unless the
 	kernel forgets to call us with the same number of releases (closes)
 	as opens */
 	.show_options = cifs_show_options,
-- 
cgit v1.2.3-55-g7522


From fd247447c1d94a79d5cfc647430784306b3a8323 Mon Sep 17 00:00:00 2001
From: Rafael J. Wysocki
Date: Tue, 8 Jun 2010 10:49:08 +0200
Subject: ACPI / ACPICA: Fix low-level GPE manipulation code

ACPICA uses acpi_ev_enable_gpe() for enabling GPEs at the low level,
which is incorrect, because this function only enables the GPE if the
corresponding bit in its enable register's enable_for_run mask is set.
This causes acpi_set_gpe() to work incorrectly if used for enabling
GPEs that were not previously enabled with acpi_enable_gpe().  As a
result, among other things, wakeup-only GPEs are never enabled by
acpi_enable_wakeup_device(), so the devices that use them are unable
to wake up the system.

To fix this issue remove acpi_ev_enable_gpe() and its counterpart
acpi_ev_disable_gpe() and replace acpi_hw_low_disable_gpe() with
acpi_hw_low_set_gpe() that will be used instead to manipulate GPE
enable bits at the low level.  Make the users of acpi_ev_enable_gpe()
and acpi_ev_disable_gpe() call acpi_hw_low_set_gpe() instead and
make sure that GPE enable masks are only updated by acpi_enable_gpe()
and acpi_disable_gpe() when GPE reference counters change from 0
to 1 and from 1 to 0, respectively.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpica/acevents.h |   4 --
 drivers/acpi/acpica/achware.h  |   3 +-
 drivers/acpi/acpica/evgpe.c    | 108 +----------------------------------------
 drivers/acpi/acpica/evxfevnt.c |  59 +++++++++++++++++++---
 drivers/acpi/acpica/hwgpe.c    |  26 ++++++++--
 include/acpi/actypes.h         |   2 +-
 6 files changed, 79 insertions(+), 123 deletions(-)

diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index 5e094a28cf54..138bbb521930 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -78,10 +78,6 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node *node,
 acpi_status
 acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info);
 
-acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info);
-
-acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info);
-
 struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
 						       u32 gpe_number);
 
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index c46277d179f0..32391588e163 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -93,7 +93,8 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width);
 u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info,
 			     struct acpi_gpe_register_info *gpe_register_info);
 
-acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info);
+acpi_status
+acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action);
 
 acpi_status
 acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info *gpe_event_info);
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index 57eeb3bde41e..66cd03835d6e 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -99,106 +99,6 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info)
 	return_ACPI_STATUS(AE_OK);
 }
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ev_enable_gpe
- *
- * PARAMETERS:  gpe_event_info          - GPE to enable
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Hardware-enable a GPE. Always enables the GPE, regardless
- *              of type or number of references.
- *
- * Note: The GPE lock should be already acquired when this function is called.
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info)
-{
-	acpi_status status;
-
-
-	ACPI_FUNCTION_TRACE(ev_enable_gpe);
-
-
-	/*
-	 * We will only allow a GPE to be enabled if it has either an
-	 * associated method (_Lxx/_Exx) or a handler. Otherwise, the
-	 * GPE will be immediately disabled by acpi_ev_gpe_dispatch the
-	 * first time it fires.
-	 */
-	if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)) {
-		return_ACPI_STATUS(AE_NO_HANDLER);
-	}
-
-	/* Ensure the HW enable masks are current */
-
-	status = acpi_ev_update_gpe_enable_masks(gpe_event_info);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Clear the GPE (of stale events) */
-
-	status = acpi_hw_clear_gpe(gpe_event_info);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/* Enable the requested GPE */
-
-	status = acpi_hw_write_gpe_enable_reg(gpe_event_info);
-	return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ev_disable_gpe
- *
- * PARAMETERS:  gpe_event_info          - GPE to disable
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Hardware-disable a GPE. Always disables the requested GPE,
- *              regardless of the type or number of references.
- *
- * Note: The GPE lock should be already acquired when this function is called.
- *
- ******************************************************************************/
-
-acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
-{
-	acpi_status status;
-
-	ACPI_FUNCTION_TRACE(ev_disable_gpe);
-
-
-	/*
-	 * Note: Always disable the GPE, even if we think that that it is already
-	 * disabled. It is possible that the AML or some other code has enabled
-	 * the GPE behind our back.
-	 */
-
-	/* Ensure the HW enable masks are current */
-
-	status = acpi_ev_update_gpe_enable_masks(gpe_event_info);
-	if (ACPI_FAILURE(status)) {
-		return_ACPI_STATUS(status);
-	}
-
-	/*
-	 * Always H/W disable this GPE, even if we don't know the GPE type.
-	 * Simply clear the enable bit for this particular GPE, but do not
-	 * write out the current GPE enable mask since this may inadvertently
-	 * enable GPEs too early. An example is a rogue GPE that has arrived
-	 * during ACPICA initialization - possibly because AML or other code
-	 * has enabled the GPE.
-	 */
-	status = acpi_hw_low_disable_gpe(gpe_event_info);
-	return_ACPI_STATUS(status);
-}
-
 
 /*******************************************************************************
  *
@@ -450,10 +350,6 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
 		return_VOID;
 	}
 
-	/* Update the GPE register masks for return to enabled state */
-
-	(void)acpi_ev_update_gpe_enable_masks(gpe_event_info);
-
 	/*
 	 * Take a snapshot of the GPE info for this level - we copy the info to
 	 * prevent a race condition with remove_handler/remove_block.
@@ -606,7 +502,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
 		 * Disable the GPE, so it doesn't keep firing before the method has a
 		 * chance to run (it runs asynchronously with interrupts enabled).
 		 */
-		status = acpi_ev_disable_gpe(gpe_event_info);
+		status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE);
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
 					"Unable to disable GPE[0x%2X]",
@@ -643,7 +539,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number)
 		 * Disable the GPE. The GPE will remain disabled a handler
 		 * is installed or ACPICA is restarted.
 		 */
-		status = acpi_ev_disable_gpe(gpe_event_info);
+		status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE);
 		if (ACPI_FAILURE(status)) {
 			ACPI_EXCEPTION((AE_INFO, status,
 					"Unable to disable GPE[0x%2X]",
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index 7c7bbb4d402c..e3d9f5c8e53d 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -199,6 +199,44 @@ acpi_status acpi_enable_event(u32 event, u32 flags)
 
 ACPI_EXPORT_SYMBOL(acpi_enable_event)
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_clear_and_enable_gpe
+ *
+ * PARAMETERS:  gpe_event_info  - GPE to enable
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Clear the given GPE from stale events and enable it.
+ *
+ ******************************************************************************/
+static acpi_status
+acpi_clear_and_enable_gpe(struct acpi_gpe_event_info *gpe_event_info)
+{
+	acpi_status status;
+
+	/*
+	 * We will only allow a GPE to be enabled if it has either an
+	 * associated method (_Lxx/_Exx) or a handler. Otherwise, the
+	 * GPE will be immediately disabled by acpi_ev_gpe_dispatch the
+	 * first time it fires.
+	 */
+	if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)) {
+		return_ACPI_STATUS(AE_NO_HANDLER);
+	}
+
+	/* Clear the GPE (of stale events) */
+	status = acpi_hw_clear_gpe(gpe_event_info);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Enable the requested GPE */
+	status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_ENABLE);
+
+	return_ACPI_STATUS(status);
+}
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_set_gpe
@@ -240,11 +278,11 @@ acpi_status acpi_set_gpe(acpi_handle gpe_device, u32 gpe_number, u8 action)
 
 	switch (action) {
 	case ACPI_GPE_ENABLE:
-		status = acpi_ev_enable_gpe(gpe_event_info);
+		status = acpi_clear_and_enable_gpe(gpe_event_info);
 		break;
 
 	case ACPI_GPE_DISABLE:
-		status = acpi_ev_disable_gpe(gpe_event_info);
+		status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_DISABLE);
 		break;
 
 	default:
@@ -307,7 +345,11 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type)
 
 		gpe_event_info->runtime_count++;
 		if (gpe_event_info->runtime_count == 1) {
-			status = acpi_ev_enable_gpe(gpe_event_info);
+			status = acpi_ev_update_gpe_enable_masks(gpe_event_info);
+			if (ACPI_SUCCESS(status)) {
+				status = acpi_clear_and_enable_gpe(gpe_event_info);
+			}
+
 			if (ACPI_FAILURE(status)) {
 				gpe_event_info->runtime_count--;
 				goto unlock_and_exit;
@@ -334,7 +376,7 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type)
 		 */
 		gpe_event_info->wakeup_count++;
 		if (gpe_event_info->wakeup_count == 1) {
-			(void)acpi_ev_update_gpe_enable_masks(gpe_event_info);
+			status = acpi_ev_update_gpe_enable_masks(gpe_event_info);
 		}
 	}
 
@@ -394,7 +436,12 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type
 
 		gpe_event_info->runtime_count--;
 		if (!gpe_event_info->runtime_count) {
-			status = acpi_ev_disable_gpe(gpe_event_info);
+			status = acpi_ev_update_gpe_enable_masks(gpe_event_info);
+			if (ACPI_SUCCESS(status)) {
+				status = acpi_hw_low_set_gpe(gpe_event_info,
+							     ACPI_GPE_DISABLE);
+			}
+
 			if (ACPI_FAILURE(status)) {
 				gpe_event_info->runtime_count++;
 				goto unlock_and_exit;
@@ -415,7 +462,7 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u8 gpe_type
 
 		gpe_event_info->wakeup_count--;
 		if (!gpe_event_info->wakeup_count) {
-			(void)acpi_ev_update_gpe_enable_masks(gpe_event_info);
+			status = acpi_ev_update_gpe_enable_masks(gpe_event_info);
 		}
 	}
 
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index d989b8e786cc..40388e23e103 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -78,23 +78,27 @@ u32 acpi_hw_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info,
 
 /******************************************************************************
  *
- * FUNCTION:	acpi_hw_low_disable_gpe
+ * FUNCTION:	acpi_hw_low_set_gpe
  *
  * PARAMETERS:	gpe_event_info	    - Info block for the GPE to be disabled
+ *		action		    - Enable or disable
  *
  * RETURN:	Status
  *
- * DESCRIPTION: Disable a single GPE in the enable register.
+ * DESCRIPTION: Enable or disable a single GPE in its enable register.
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
+acpi_status
+acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action)
 {
 	struct acpi_gpe_register_info *gpe_register_info;
 	acpi_status status;
 	u32 enable_mask;
 	u32 register_bit;
 
+	ACPI_FUNCTION_ENTRY();
+
 	/* Get the info block for the entire GPE register */
 
 	gpe_register_info = gpe_event_info->register_info;
@@ -109,11 +113,23 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info)
 		return (status);
 	}
 
-	/* Clear just the bit that corresponds to this GPE */
+	/* Set ot clear just the bit that corresponds to this GPE */
 
 	register_bit = acpi_hw_gpe_register_bit(gpe_event_info,
 						gpe_register_info);
-	ACPI_CLEAR_BIT(enable_mask, register_bit);
+	switch (action) {
+	case ACPI_GPE_ENABLE:
+		ACPI_SET_BIT(enable_mask, register_bit);
+		break;
+
+	case ACPI_GPE_DISABLE:
+		ACPI_CLEAR_BIT(enable_mask, register_bit);
+		break;
+
+	default:
+		ACPI_ERROR((AE_INFO, "Invalid action\n"));
+		return (AE_BAD_PARAMETER);
+	}
 
 	/* Write the updated enable mask */
 
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index de5e99a99530..6881f5b7b7be 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -663,7 +663,7 @@ typedef u32 acpi_event_status;
 #define ACPI_GPE_MAX                    0xFF
 #define ACPI_NUM_GPE                    256
 
-/* Actions for acpi_set_gpe */
+/* Actions for acpi_set_gpe and acpi_hw_low_set_gpe */
 
 #define ACPI_GPE_ENABLE                 0
 #define ACPI_GPE_DISABLE                1
-- 
cgit v1.2.3-55-g7522


From c9a8bbb7704cbf515c0fc68970abbe4e91d68521 Mon Sep 17 00:00:00 2001
From: Rafael J. Wysocki
Date: Tue, 8 Jun 2010 10:49:45 +0200
Subject: ACPI / ACPICA: Avoid writing full enable masks to GPE registers

ACPICA uses acpi_hw_write_gpe_enable_reg() to re-enable a GPE after
an event signaled by it has been handled.  However, this function
writes the entire GPE enable mask to the GPE's enable register which
may not be correct.  Namely, if one of the other GPEs in the same
register was previously enabled by acpi_enable_gpe() and subsequently
disabled using acpi_set_gpe(), acpi_hw_write_gpe_enable_reg() will
re-enable it along with the target GPE.

To fix this issue rework acpi_hw_write_gpe_enable_reg() so that it
calls acpi_hw_low_set_gpe() with a special action value,
ACPI_GPE_COND_ENABLE, that will make it only enable the GPE if the
corresponding bit in its register's enable_for_run mask is set.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpica/hwgpe.c | 18 +++++-------------
 include/acpi/actypes.h      |  1 +
 2 files changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index 40388e23e103..3450309c2786 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -118,6 +118,10 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action)
 	register_bit = acpi_hw_gpe_register_bit(gpe_event_info,
 						gpe_register_info);
 	switch (action) {
+	case ACPI_GPE_COND_ENABLE:
+		if (!(register_bit & gpe_register_info->enable_for_run))
+			return (AE_BAD_PARAMETER);
+
 	case ACPI_GPE_ENABLE:
 		ACPI_SET_BIT(enable_mask, register_bit);
 		break;
@@ -154,23 +158,11 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u8 action)
 acpi_status
 acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info)
 {
-	struct acpi_gpe_register_info *gpe_register_info;
 	acpi_status status;
 
 	ACPI_FUNCTION_ENTRY();
 
-	/* Get the info block for the entire GPE register */
-
-	gpe_register_info = gpe_event_info->register_info;
-	if (!gpe_register_info) {
-		return (AE_NOT_EXIST);
-	}
-
-	/* Write the entire GPE (runtime) enable register */
-
-	status = acpi_hw_write(gpe_register_info->enable_for_run,
-			       &gpe_register_info->enable_address);
-
+	status = acpi_hw_low_set_gpe(gpe_event_info, ACPI_GPE_COND_ENABLE);
 	return (status);
 }
 
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 6881f5b7b7be..15a4c68fad3b 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -667,6 +667,7 @@ typedef u32 acpi_event_status;
 
 #define ACPI_GPE_ENABLE                 0
 #define ACPI_GPE_DISABLE                1
+#define ACPI_GPE_COND_ENABLE            2
 
 /* gpe_types for acpi_enable_gpe and acpi_disable_gpe */
 
-- 
cgit v1.2.3-55-g7522


From ce43ace02320a3fb9614ddb27edc3a8700d68b26 Mon Sep 17 00:00:00 2001
From: Rafael J. Wysocki
Date: Tue, 8 Jun 2010 10:50:20 +0200
Subject: ACPI / ACPICA: Fix GPE initialization

While developing the GPE reference counting code we overlooked the
fact that acpi_ev_update_gpes() could have enabled GPEs before
acpi_ev_initialize_gpe_block() was called.  As a result, some GPEs
are enabled twice during the initialization.

To fix this issue avoid calling acpi_enable_gpe() from
acpi_ev_initialize_gpe_block() for the GPEs that have nonzero
runtime reference counters.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpica/evgpeblk.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index 85ded1f2540d..79048de0aded 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -1024,6 +1024,19 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
 
 			gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j;
 			gpe_event_info = &gpe_block->event_info[gpe_index];
+			gpe_number = gpe_index + gpe_block->block_base_number;
+
+			/*
+			 * If the GPE has already been enabled for runtime
+			 * signaling, make sure it remains enabled, but do not
+			 * increment its reference counter.
+			 */
+			if (gpe_event_info->runtime_count) {
+				acpi_set_gpe(gpe_device, gpe_number,
+						ACPI_GPE_ENABLE);
+				gpe_enabled_count++;
+				continue;
+			}
 
 			if (gpe_event_info->flags & ACPI_GPE_CAN_WAKE) {
 				wake_gpe_count++;
@@ -1040,7 +1053,6 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
 
 			/* Enable this GPE */
 
-			gpe_number = gpe_index + gpe_block->block_base_number;
 			status = acpi_enable_gpe(gpe_device, gpe_number,
 						 ACPI_GPE_TYPE_RUNTIME);
 			if (ACPI_FAILURE(status)) {
-- 
cgit v1.2.3-55-g7522


From 9d3c752de65dbfa6e522f1d666deb0ac152ef367 Mon Sep 17 00:00:00 2001
From: Rafael J. Wysocki
Date: Tue, 8 Jun 2010 10:50:53 +0200
Subject: ACPI / ACPICA: Fix sysfs GPE interface

The sysfs interface allowing user space to disable/enable GPEs
doesn't work correctly, because a GPE disabled this way will be
re-enabled shortly by acpi_ev_asynch_enable_gpe() if it was
previosuly enabled by acpi_enable_gpe() (in which case the
corresponding bit in its enable register's enable_for_run mask is
set).

To address this issue make the sysfs GPE interface use
acpi_enable_gpe() and acpi_disable_gpe() instead of acpi_set_gpe()
so that GPE reference counters are modified by it along with the
values of GPE enable registers.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/system.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index e35525b39f6b..904e8fce2e74 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -388,10 +388,12 @@ static ssize_t counter_set(struct kobject *kobj,
 	if (index < num_gpes) {
 		if (!strcmp(buf, "disable\n") &&
 				(status & ACPI_EVENT_FLAG_ENABLED))
-			result = acpi_set_gpe(handle, index, ACPI_GPE_DISABLE);
+			result = acpi_disable_gpe(handle, index,
+						ACPI_GPE_TYPE_RUNTIME);
 		else if (!strcmp(buf, "enable\n") &&
 				!(status & ACPI_EVENT_FLAG_ENABLED))
-			result = acpi_set_gpe(handle, index, ACPI_GPE_ENABLE);
+			result = acpi_enable_gpe(handle, index,
+						ACPI_GPE_TYPE_RUNTIME);
 		else if (!strcmp(buf, "clear\n") &&
 				(status & ACPI_EVENT_FLAG_SET))
 			result = acpi_clear_gpe(handle, index);
-- 
cgit v1.2.3-55-g7522


From d70326689b70b35527765bd3decbb1229459e928 Mon Sep 17 00:00:00 2001
From: Bob Moore
Date: Wed, 26 May 2010 11:06:12 +0800
Subject: ACPICA: Fix namestring associated with AE_NO_HANDLER exception

Was incorrectly AE_WAKE_ONLY_GPE.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 include/acpi/acexcep.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/acpi/acexcep.h b/include/acpi/acexcep.h
index 5958d7845bd5..17714beb868e 100644
--- a/include/acpi/acexcep.h
+++ b/include/acpi/acexcep.h
@@ -212,7 +212,7 @@ char const *acpi_gbl_exception_names_env[] = {
 	"AE_NO_GLOBAL_LOCK",
 	"AE_ABORT_METHOD",
 	"AE_SAME_HANDLER",
-	"AE_WAKE_ONLY_GPE",
+	"AE_NO_HANDLER",
 	"AE_OWNER_ID_LIMIT"
 };
 
-- 
cgit v1.2.3-55-g7522


From 9cbfa18e8a7b34a32eddbd914a07f085962f50a8 Mon Sep 17 00:00:00 2001
From: Bob Moore
Date: Wed, 26 May 2010 11:22:41 +0800
Subject: ACPICA: Limit maximum time for Sleep() operator

To prevent accidental deep sleeps, limit the maximum time that
Sleep() will sleep. Configurable, default maximum is two seconds.
ACPICA bugzilla 854.

http://www.acpica.org/bugzilla/show_bug.cgi?id=854

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpica/acconfig.h | 4 ++++
 drivers/acpi/acpica/exsystem.c | 8 ++++++++
 2 files changed, 12 insertions(+)

diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h
index 33181ad350d5..b17d8de9f6ff 100644
--- a/drivers/acpi/acpica/acconfig.h
+++ b/drivers/acpi/acpica/acconfig.h
@@ -119,6 +119,10 @@
 
 #define ACPI_MAX_LOOP_ITERATIONS        0xFFFF
 
+/* Maximum sleep allowed via Sleep() operator */
+
+#define ACPI_MAX_SLEEP                  20000	/* Two seconds */
+
 /******************************************************************************
  *
  * ACPI Specification constants (Do not change unless the specification changes)
diff --git a/drivers/acpi/acpica/exsystem.c b/drivers/acpi/acpica/exsystem.c
index 6d32e09327f1..675aaa91a770 100644
--- a/drivers/acpi/acpica/exsystem.c
+++ b/drivers/acpi/acpica/exsystem.c
@@ -201,6 +201,14 @@ acpi_status acpi_ex_system_do_sleep(u64 how_long)
 
 	acpi_ex_relinquish_interpreter();
 
+	/*
+	 * For compatibility with other ACPI implementations and to prevent
+	 * accidental deep sleeps, limit the sleep time to something reasonable.
+	 */
+	if (how_long > ACPI_MAX_SLEEP) {
+		how_long = ACPI_MAX_SLEEP;
+	}
+
 	acpi_os_sleep(how_long);
 
 	/* And now we must get the interpreter again */
-- 
cgit v1.2.3-55-g7522


From b681f7d9ab4d697a214fa4428795790c3a937a89 Mon Sep 17 00:00:00 2001
From: Matthew Garrett
Date: Wed, 26 May 2010 11:50:48 +0800
Subject: ACPICA: Truncate I/O addresses to 16 bits for Windows compatibility

This feature is optional and is enabled if the BIOS requests any
Windows OSI strings. It can also be enabled by the host OS.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/acpica/acglobal.h |  8 ++++++++
 drivers/acpi/acpica/hwvalid.c  | 12 ++++++++++++
 drivers/acpi/acpica/nsinit.c   |  9 +++++++++
 include/acpi/acpixf.h          |  1 +
 4 files changed, 30 insertions(+)

diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 9070f1fe8f17..899d68afc3c5 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -125,6 +125,14 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE);
  */
 u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE);
 
+/*
+ * Optionally truncate I/O addresses to 16 bits. Provides compatibility
+ * with other ACPI implementations. NOTE: During ACPICA initialization,
+ * this value is set to TRUE if any Windows OSI strings have been
+ * requested by the BIOS.
+ */
+u8 ACPI_INIT_GLOBAL(acpi_gbl_truncate_io_addresses, FALSE);
+
 /* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */
 
 struct acpi_table_fadt acpi_gbl_FADT;
diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c
index c10d587c1641..e1d9c777b213 100644
--- a/drivers/acpi/acpica/hwvalid.c
+++ b/drivers/acpi/acpica/hwvalid.c
@@ -222,6 +222,12 @@ acpi_status acpi_hw_read_port(acpi_io_address address, u32 *value, u32 width)
 	u32 one_byte;
 	u32 i;
 
+	/* Truncate address to 16 bits if requested */
+
+	if (acpi_gbl_truncate_io_addresses) {
+		address &= ACPI_UINT16_MAX;
+	}
+
 	/* Validate the entire request and perform the I/O */
 
 	status = acpi_hw_validate_io_request(address, width);
@@ -279,6 +285,12 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width)
 	acpi_status status;
 	u32 i;
 
+	/* Truncate address to 16 bits if requested */
+
+	if (acpi_gbl_truncate_io_addresses) {
+		address &= ACPI_UINT16_MAX;
+	}
+
 	/* Validate the entire request and perform the I/O */
 
 	status = acpi_hw_validate_io_request(address, width);
diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index 9bd6f050f299..4e5272c313e0 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -193,6 +193,15 @@ acpi_status acpi_ns_initialize_devices(void)
 					acpi_ns_init_one_device, NULL, &info,
 					NULL);
 
+	/*
+	 * Any _OSI requests should be completed by now. If the BIOS has
+	 * requested any Windows OSI strings, we will always truncate
+	 * I/O addresses to 16 bits -- for Windows compatibility.
+	 */
+	if (acpi_gbl_osi_data >= ACPI_OSI_WIN_2000) {
+		acpi_gbl_truncate_io_addresses = TRUE;
+	}
+
 	ACPI_FREE(info.evaluate_info);
 	if (ACPI_FAILURE(status)) {
 		goto error_exit;
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 0e4ab1fe5966..1371cc997393 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -69,6 +69,7 @@ extern acpi_name acpi_gbl_trace_method_name;
 extern u32 acpi_gbl_trace_flags;
 extern u8 acpi_gbl_enable_aml_debug_object;
 extern u8 acpi_gbl_copy_dsdt_locally;
+extern u8 acpi_gbl_truncate_io_addresses;
 
 extern u32 acpi_current_gpe_count;
 extern struct acpi_table_fadt acpi_gbl_FADT;
-- 
cgit v1.2.3-55-g7522


From d49aba84fe775671133295658f43f4d142a517f9 Mon Sep 17 00:00:00 2001
From: Randy Dunlap
Date: Tue, 8 Jun 2010 07:00:20 +0000
Subject: enic: fix pci_alloc_consistent argument

Fix build warning on i386 (32-bit) with 32-bit dma_addr_t:

drivers/net/enic/vnic_dev.c: In function 'vnic_dev_init_prov':
drivers/net/enic/vnic_dev.c:716: warning: passing argument 3 of 'pci_alloc_consistent' from incompatible pointer type
include/asm-generic/pci-dma-compat.h:16: note: expected 'dma_addr_t *' but argument is of type 'u64 *'

Now builds without warnings on i386 and on x86_64.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc:	Scott Feldman <scofeldm@cisco.com>
Cc:	Vasanthy Kolluri <vkolluri@cisco.com>
Cc:	Roopa Prabhu <roprabhu@cisco.com>
Acked-by: Scott Feldman <scofeldm@cisco.com>
---
 drivers/net/enic/vnic_dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index 2b3e16db5c82..e0d33281ec98 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -709,7 +709,7 @@ int vnic_dev_init_prov(struct vnic_dev *vdev, u8 *buf, u32 len)
 {
 	u64 a0, a1 = len;
 	int wait = 1000;
-	u64 prov_pa;
+	dma_addr_t prov_pa;
 	void *prov_buf;
 	int ret;
 
-- 
cgit v1.2.3-55-g7522


From 8acf7d00dfb62d7e5f2533c3f1132f60cb267369 Mon Sep 17 00:00:00 2001
From: Baruch Siach
Date: Wed, 9 Jun 2010 14:07:02 +0300
Subject: watchdog: [PATCH 3/3] imx2_wdt: fix section mismatch

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

---
 drivers/watchdog/imx2_wdt.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index ea25885781bb..2ee7dac55a3c 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -330,7 +330,6 @@ static void imx2_wdt_shutdown(struct platform_device *pdev)
 }
 
 static struct platform_driver imx2_wdt_driver = {
-	.probe		= imx2_wdt_probe,
 	.remove		= __exit_p(imx2_wdt_remove),
 	.shutdown	= imx2_wdt_shutdown,
 	.driver		= {
-- 
cgit v1.2.3-55-g7522


From 390daa0d8f391378865221cd8446028884a3baa9 Mon Sep 17 00:00:00 2001
From: Steve Bennett
Date: Wed, 21 Apr 2010 16:30:33 +1000
Subject: [ARM] pxa: fix incorrect gpio type in udc_pxa2xx.h

gpio must be int, not u16, otherwise -1 isn't recognised
by gpio_is_valid().

Signed-off-by: Steve Bennett <steveb@workware.net.au>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
---
 arch/arm/include/asm/mach/udc_pxa2xx.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/mach/udc_pxa2xx.h b/arch/arm/include/asm/mach/udc_pxa2xx.h
index f3eabf1ecec3..833306ee9e7f 100644
--- a/arch/arm/include/asm/mach/udc_pxa2xx.h
+++ b/arch/arm/include/asm/mach/udc_pxa2xx.h
@@ -21,8 +21,8 @@ struct pxa2xx_udc_mach_info {
 	 * here.  Note that sometimes the signals go through inverters...
 	 */
 	bool	gpio_vbus_inverted;
-	u16	gpio_vbus;			/* high == vbus present */
+	int	gpio_vbus;			/* high == vbus present */
 	bool	gpio_pullup_inverted;
-	u16	gpio_pullup;			/* high == pullup activated */
+	int	gpio_pullup;			/* high == pullup activated */
 };
 
-- 
cgit v1.2.3-55-g7522


From 56b925fccc58cd43fc553a8302dbbdd440aef288 Mon Sep 17 00:00:00 2001
From: Marek Vasut
Date: Thu, 3 Jun 2010 03:44:00 +0200
Subject: [ARM] pxa/z2: fix missing include in battery driver

Remove redundant includes and add slab.h to fix problem with building.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
---
 drivers/power/z2_battery.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/power/z2_battery.c b/drivers/power/z2_battery.c
index 9cca465436e3..85064a9f649e 100644
--- a/drivers/power/z2_battery.c
+++ b/drivers/power/z2_battery.c
@@ -9,19 +9,13 @@
  *
  */
 
-#include <linux/init.h>
-#include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/power_supply.h>
-#include <linux/i2c.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
 #include <linux/gpio.h>
+#include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
-#include <asm/irq.h>
-#include <asm/mach/irq.h>
+#include <linux/power_supply.h>
+#include <linux/slab.h>
 #include <linux/z2_battery.h>
 
 #define	Z2_DEFAULT_NAME	"Z2"
-- 
cgit v1.2.3-55-g7522


From 60adc112bbd430b90cbafecc19e6e9be2e2000e3 Mon Sep 17 00:00:00 2001
From: Marek Vasut
Date: Thu, 3 Jun 2010 03:50:10 +0200
Subject: [ARM] pxa/z2: fix flash layout to final version

This patch fixes flash layout to it's final version. Also, I fixed the
authorship information of this file as it's been totally reworked since Ken
released his last version.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
---
 arch/arm/mach-pxa/z2.c | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
index f5d1ae3db3a4..d303c6929d32 100644
--- a/arch/arm/mach-pxa/z2.c
+++ b/arch/arm/mach-pxa/z2.c
@@ -3,8 +3,9 @@
  *
  *  Support for the Zipit Z2 Handheld device.
  *
- *  Author: 	Ken McGuire
- *  Created:	Jan 25, 2009
+ *  Copyright (C) 2009-2010 Marek Vasut <marek.vasut@gmail.com>
+ *
+ *  Based on research and code by: Ken McGuire
  *  Based on mainstone.c as modified for the Zipit Z2.
  *
  *  This program is free software; you can redistribute it and/or modify
@@ -157,21 +158,14 @@ static struct mtd_partition z2_flash_parts[] = {
 	{
 		.name	= "U-Boot Bootloader",
 		.offset	= 0x0,
-		.size	= 0x20000,
-	},
-	{
-		.name	= "Linux Kernel",
-		.offset	= 0x20000,
-		.size	= 0x220000,
-	},
-	{
-		.name	= "Filesystem",
-		.offset	= 0x240000,
-		.size	= 0x5b0000,
-	},
-	{
+		.size	= 0x40000,
+	}, {
 		.name	= "U-Boot Environment",
-		.offset	= 0x7f0000,
+		.offset	= 0x40000,
+		.size	= 0x60000,
+	}, {
+		.name	= "Flash",
+		.offset	= 0x60000,
 		.size	= MTDPART_SIZ_FULL,
 	},
 };
-- 
cgit v1.2.3-55-g7522


From 8dbed71ad1ab0636745af958934f1ca670702ca0 Mon Sep 17 00:00:00 2001
From: Robert Jarzmik
Date: Wed, 2 Jun 2010 23:29:50 +0200
Subject: [ARM] pxa/mioa701: fix camera regression

Since commit a48c24a696f0d93c49f913b7818e9819612b1f4e, the
camera is not working anymore.

After the v4l2 migration, the mt9m111 camera board
information was not passed to the i2c layer anymore, but
stored for future use of v4l2 (through soc_camera).

Because mioa701_i2c_devices[] was tagged as "__initdata",
and because after the v4l2 migration, the new structure
"iclink" references it, the mt9m111 driver is not probed
anymore, as part of "iclink" is not valid (discarded after
kernel init).

Although there is not compilation error, nor runtime oops,
this patch restores a working camera on the mioa701 board.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
---
 arch/arm/mach-pxa/mioa701.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
index d60db87dde08..fa6a708b4099 100644
--- a/arch/arm/mach-pxa/mioa701.c
+++ b/arch/arm/mach-pxa/mioa701.c
@@ -697,7 +697,7 @@ static struct i2c_board_info __initdata mioa701_pi2c_devices[] = {
 };
 
 /* Board I2C devices. */
-static struct i2c_board_info __initdata mioa701_i2c_devices[] = {
+static struct i2c_board_info mioa701_i2c_devices[] = {
 	{
 		I2C_BOARD_INFO("mt9m111", 0x5d),
 	},
-- 
cgit v1.2.3-55-g7522


From cdb4acc0568f4f6e10e778f0c2cd04fcd4786c09 Mon Sep 17 00:00:00 2001
From: Jonathan Cameron
Date: Mon, 7 Jun 2010 18:49:19 +0100
Subject: [ARM] mmp: fix build failure due to IRQ_PMU depends on ARCH_PXA

PMU is not tested and enabled on MMP architecture at this moment,
the device IRQ number, IRQ_PMU depends on ARCH_PXA. Build PMU only
for ARCH_PXA.

Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
---
 arch/arm/plat-pxa/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/plat-pxa/Makefile b/arch/arm/plat-pxa/Makefile
index 6187edfbcb77..a17cc0c6a6b0 100644
--- a/arch/arm/plat-pxa/Makefile
+++ b/arch/arm/plat-pxa/Makefile
@@ -2,8 +2,9 @@
 # Makefile for code common across different PXA processor families
 #
 
-obj-y	:= dma.o pmu.o
+obj-y	:= dma.o
 
+obj-$(CONFIG_ARCH_PXA)		+= pmu.o
 obj-$(CONFIG_GENERIC_GPIO)	+= gpio.o
 obj-$(CONFIG_PXA3xx)		+= mfp.o
 obj-$(CONFIG_ARCH_MMP)		+= mfp.o
-- 
cgit v1.2.3-55-g7522


From 9f069af5b62919151d76b37a3b168cbb34c874c3 Mon Sep 17 00:00:00 2001
From: Michael Ellerman
Date: Wed, 19 May 2010 02:32:29 +0000
Subject: of: Drop properties with "/" in their name

Some bogus firmwares include properties with "/" in their name. This
causes problems when creating the /proc/device-tree file system,
because the slash is taken to indicate a directory.

We don't care about those properties, and we don't want to encourage
them, so just throw them away when creating /proc/device-tree.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Tested-by: Christian Kujau <lists@nerdbynature.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---
 fs/proc/proc_devtree.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
index ce94801f48ca..d9396a4fc7ff 100644
--- a/fs/proc/proc_devtree.c
+++ b/fs/proc/proc_devtree.c
@@ -209,6 +209,9 @@ void proc_device_tree_add_node(struct device_node *np,
 	for (pp = np->properties; pp != NULL; pp = pp->next) {
 		p = pp->name;
 
+		if (strchr(p, '/'))
+			continue;
+
 		if (duplicate_name(de, p))
 			p = fixup_name(np, de, p);
 
-- 
cgit v1.2.3-55-g7522


From e897082fe7a5b591dc4dd5599ac39081a7c8e482 Mon Sep 17 00:00:00 2001
From: John Fastabend
Date: Sun, 13 Jun 2010 10:36:30 +0000
Subject: net: fix deliver_no_wcard regression on loopback device

deliver_no_wcard is not being set in skb_copy_header.
In the skb_cloned case it is not being cleared and
may cause the skb to be dropped when the loopback device
pushes it back up the stack.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/skbuff.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 9f07e749d7b1..bcf2fa3e0ddc 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -532,6 +532,7 @@ static void __copy_skb_header(struct sk_buff *new, const struct sk_buff *old)
 	new->ip_summed		= old->ip_summed;
 	skb_copy_queue_mapping(new, old);
 	new->priority		= old->priority;
+	new->deliver_no_wcard	= old->deliver_no_wcard;
 #if defined(CONFIG_IP_VS) || defined(CONFIG_IP_VS_MODULE)
 	new->ipvs_property	= old->ipvs_property;
 #endif
-- 
cgit v1.2.3-55-g7522


From e8d15e6460cb0eea00f2574a80d94496943403ba Mon Sep 17 00:00:00 2001
From: Eric Dumazet
Date: Sun, 13 Jun 2010 10:50:46 +0000
Subject: net: rxhash already set in __copy_skb_header

No need to copy rxhash again in __skb_clone()

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/skbuff.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index bcf2fa3e0ddc..34432b4e96bb 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -570,7 +570,6 @@ static struct sk_buff *__skb_clone(struct sk_buff *n, struct sk_buff *skb)
 	C(len);
 	C(data_len);
 	C(mac_len);
-	C(rxhash);
 	n->hdr_len = skb->nohdr ? skb_headroom(skb) : skb->hdr_len;
 	n->cloned = 1;
 	n->nohdr = 0;
-- 
cgit v1.2.3-55-g7522


From d08935c274b7e552e47633cf0cbd74b6e953d228 Mon Sep 17 00:00:00 2001
From: Don Skidmore
Date: Fri, 11 Jun 2010 13:20:29 +0000
Subject: ixgbe: fix for race with 8259(8|9) during shutdown

There is a small window where the watchdog could be running as the
interface is brought down on a NIC with two ports wired back to back.
If ixgbe_update_status is then called can lead to a panic.  This patch
allows the update to bail if we are in that condition.

This issue was orignally reported and fix proposed by Akihiko Saitou.

CC: Akihiko Saitou <asaitou@users.sourceforge.net>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ixgbe/ixgbe_main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index b2af2f67f604..ce30c62a97f7 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -5282,6 +5282,10 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter)
 	u32 i, missed_rx = 0, mpc, bprc, lxon, lxoff, xon_off_tot;
 	u64 non_eop_descs = 0, restart_queue = 0;
 
+	if (test_bit(__IXGBE_DOWN, &adapter->state) ||
+	    test_bit(__IXGBE_RESETTING, &adapter->state))
+		return;
+
 	if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
 		u64 rsc_count = 0;
 		u64 rsc_flush = 0;
-- 
cgit v1.2.3-55-g7522


From 7837e58ce39bd727e0a163e7d34e479df36f6d29 Mon Sep 17 00:00:00 2001
From: Joe Perches
Date: Fri, 11 Jun 2010 12:51:49 +0000
Subject: e1000: Fix message logging defect

commit 675ad47375c76a7c3be4ace9554d92cd55518ced
removed the capability to use ethtool.set_msglevel to
control the types of messages emitted by the driver.

That commit should probably be reverted.

If not, then this patch fixes a message logging defect
introduced by converting a printk without KERN_<level>
to e_info.

This also reduces text by about 200 bytes.

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/e1000/e1000_main.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index ebdea0891665..68a80893dce1 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -1047,15 +1047,14 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
 		goto err_register;
 
 	/* print bus type/speed/width info */
-	e_info("(PCI%s:%s:%s) ",
-		((hw->bus_type == e1000_bus_type_pcix) ? "-X" : ""),
-		((hw->bus_speed == e1000_bus_speed_133) ? "133MHz" :
-		 (hw->bus_speed == e1000_bus_speed_120) ? "120MHz" :
-		 (hw->bus_speed == e1000_bus_speed_100) ? "100MHz" :
-		 (hw->bus_speed == e1000_bus_speed_66) ? "66MHz" : "33MHz"),
-		((hw->bus_width == e1000_bus_width_64) ? "64-bit" : "32-bit"));
-
-	e_info("%pM\n", netdev->dev_addr);
+	e_info("(PCI%s:%dMHz:%d-bit) %pM\n",
+	       ((hw->bus_type == e1000_bus_type_pcix) ? "-X" : ""),
+	       ((hw->bus_speed == e1000_bus_speed_133) ? 133 :
+		(hw->bus_speed == e1000_bus_speed_120) ? 120 :
+		(hw->bus_speed == e1000_bus_speed_100) ? 100 :
+		(hw->bus_speed == e1000_bus_speed_66) ? 66 : 33),
+	       ((hw->bus_width == e1000_bus_width_64) ? 64 : 32),
+	       netdev->dev_addr);
 
 	/* carrier off reporting is important to ethtool even BEFORE open */
 	netif_carrier_off(netdev);
-- 
cgit v1.2.3-55-g7522


From 28c8e4790ca5ef75f54895ca46437f9fbb433ddf Mon Sep 17 00:00:00 2001
From: Andy Gospodarek
Date: Fri, 11 Jun 2010 12:47:03 +0000
Subject: ixgbe: fix automatic LRO/RSC settings for low latency

This patch added to 2.6.34:

	commit f8d1dcaf88bddc7f282722ec1fdddbcb06a72f18
	Author: Jesse Brandeburg <jesse.brandeburg@intel.com>
	Date:   Tue Apr 27 01:37:20 2010 +0000

	    ixgbe: enable extremely low latency

introduced a feature where LRO (called RSC on the hardware) was disabled
automatically when setting rx-usecs to 0 via ethtool.  Some might not
like the fact that LRO was disabled automatically, but I'm fine with
that.  What I don't like is that LRO/RSC is automatically enabled when
rx-usecs is set >0 via ethtool.

This would certainly be a problem if the device was used for forwarding
and it was determined that the low latency wasn't needed after the
device was already forwarding.  I played around with saving the state of
LRO in the driver, but it just didn't seem worthwhile and would require
a small change to dev_disable_lro() that I did not like.

This patch simply leaves LRO disabled when setting rx-usecs >0 and
requires that the user enable it again.  An extra informational message
will also now appear in the log so users can understand why LRO isn't
being enabled as they expect.

Inconsistency of LRO setting first noticed by Stanislaw Gruszka.

Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
CC: Stanislaw Gruszka <sgruszka@redhat.com>
CC: stable@kernel.org
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ixgbe/ixgbe_ethtool.c | 37 ++++++++-----------------------------
 1 file changed, 8 insertions(+), 29 deletions(-)

diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index c50a7541ffec..3a93a81872b8 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -2077,25 +2077,6 @@ static int ixgbe_get_coalesce(struct net_device *netdev,
 	return 0;
 }
 
-/*
- * this function must be called before setting the new value of
- * rx_itr_setting
- */
-static bool ixgbe_reenable_rsc(struct ixgbe_adapter *adapter,
-                               struct ethtool_coalesce *ec)
-{
-	/* check the old value and enable RSC if necessary */
-	if ((adapter->rx_itr_setting == 0) &&
-	    (adapter->flags2 & IXGBE_FLAG2_RSC_CAPABLE)) {
-		adapter->flags2 |= IXGBE_FLAG2_RSC_ENABLED;
-		adapter->netdev->features |= NETIF_F_LRO;
-		DPRINTK(PROBE, INFO, "rx-usecs set to %d, re-enabling RSC\n",
-		        ec->rx_coalesce_usecs);
-		return true;
-	}
-	return false;
-}
-
 static int ixgbe_set_coalesce(struct net_device *netdev,
                               struct ethtool_coalesce *ec)
 {
@@ -2124,9 +2105,6 @@ static int ixgbe_set_coalesce(struct net_device *netdev,
 		    (1000000/ec->rx_coalesce_usecs < IXGBE_MIN_INT_RATE))
 			return -EINVAL;
 
-		/* check the old value and enable RSC if necessary */
-		need_reset = ixgbe_reenable_rsc(adapter, ec);
-
 		/* store the value in ints/second */
 		adapter->rx_eitr_param = 1000000/ec->rx_coalesce_usecs;
 
@@ -2135,9 +2113,6 @@ static int ixgbe_set_coalesce(struct net_device *netdev,
 		/* clear the lower bit as its used for dynamic state */
 		adapter->rx_itr_setting &= ~1;
 	} else if (ec->rx_coalesce_usecs == 1) {
-		/* check the old value and enable RSC if necessary */
-		need_reset = ixgbe_reenable_rsc(adapter, ec);
-
 		/* 1 means dynamic mode */
 		adapter->rx_eitr_param = 20000;
 		adapter->rx_itr_setting = 1;
@@ -2157,10 +2132,11 @@ static int ixgbe_set_coalesce(struct net_device *netdev,
 		 */
 		if (adapter->flags2 & IXGBE_FLAG2_RSC_ENABLED) {
 			adapter->flags2 &= ~IXGBE_FLAG2_RSC_ENABLED;
-			netdev->features &= ~NETIF_F_LRO;
-			DPRINTK(PROBE, INFO,
-			        "rx-usecs set to 0, disabling RSC\n");
-
+			if (netdev->features & NETIF_F_LRO) {
+				netdev->features &= ~NETIF_F_LRO;
+				DPRINTK(PROBE, INFO, "rx-usecs set to 0, "
+					"disabling LRO/RSC\n");
+			}
 			need_reset = true;
 		}
 	}
@@ -2255,6 +2231,9 @@ static int ixgbe_set_flags(struct net_device *netdev, u32 data)
 			}
 		} else if (!adapter->rx_itr_setting) {
 			netdev->features &= ~ETH_FLAG_LRO;
+			if (data & ETH_FLAG_LRO)
+				DPRINTK(PROBE, INFO, "rx-usecs set to 0, "
+					"LRO/RSC cannot be enabled.\n");
 		}
 	}
 
-- 
cgit v1.2.3-55-g7522


From b8f171e7e7ed5c9b77324bcc6bb580ddcc84da49 Mon Sep 17 00:00:00 2001
From: Alex Murray
Date: Mon, 14 Jun 2010 12:08:43 +0930
Subject: ALSA: hda - Fix line-in for mb5 model MacBook (Pro) 5,1 / 5,2

The line-in input is 0x7 not 0x2 for MacBook (Pro) 5,1 / 5,2 models

Signed-off-by: Alex Murray <murray.alex@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index f6cd8ed3272f..f1ce7d7f5aa3 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -6950,7 +6950,7 @@ static struct hda_input_mux mb5_capture_source = {
 	.num_items = 3,
 	.items = {
 		{ "Mic", 0x1 },
-		{ "Line", 0x2 },
+		{ "Line", 0x7 },
 		{ "CD", 0x4 },
 	},
 };
@@ -7471,8 +7471,8 @@ static struct snd_kcontrol_new alc885_mb5_mixer[] = {
 	HDA_BIND_MUTE   ("LFE Playback Switch", 0x0e, 0x02, HDA_INPUT),
 	HDA_CODEC_VOLUME("Headphone Playback Volume", 0x0f, 0x00, HDA_OUTPUT),
 	HDA_BIND_MUTE   ("Headphone Playback Switch", 0x0f, 0x02, HDA_INPUT),
-	HDA_CODEC_VOLUME("Line Playback Volume", 0x0b, 0x02, HDA_INPUT),
-	HDA_CODEC_MUTE  ("Line Playback Switch", 0x0b, 0x02, HDA_INPUT),
+	HDA_CODEC_VOLUME("Line Playback Volume", 0x0b, 0x07, HDA_INPUT),
+	HDA_CODEC_MUTE  ("Line Playback Switch", 0x0b, 0x07, HDA_INPUT),
 	HDA_CODEC_VOLUME("Mic Playback Volume", 0x0b, 0x01, HDA_INPUT),
 	HDA_CODEC_MUTE  ("Mic Playback Switch", 0x0b, 0x01, HDA_INPUT),
 	HDA_CODEC_VOLUME("Line Boost", 0x15, 0x00, HDA_INPUT),
@@ -7855,10 +7855,9 @@ static struct hda_verb alc885_mb5_init_verbs[] = {
 	{0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_IN},
 	{0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE},
 
-	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(1)},
-	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(3)},
-	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(2)},
-	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(4)},
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_UNMUTE(0x1)},
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0x7)},
+	{0x24, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0x4)},
 	{ }
 };
 
-- 
cgit v1.2.3-55-g7522


From dc66c74de6f4238020db3e2041d4aca5c5b3e9bc Mon Sep 17 00:00:00 2001
From: Philipp Reisner
Date: Wed, 2 Jun 2010 14:31:29 +0200
Subject: drbd: Fixed a race between disk-attach and unexpected state changes

This was a very hard to trigger race condition.

If we got a state packet from the peer, after drbd_nl_disk() has
already changed the disk state to D_NEGOTIATING but
after_state_ch() was not yet run by the worker, then receive_state()
might called drbd_sync_handshake(), which in turn crashed
when accessing p_uuid.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
---
 drivers/block/drbd/drbd_main.c | 2 --
 drivers/block/drbd/drbd_nl.c   | 6 ++++++
 include/linux/drbd.h           | 2 +-
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 6b077f93acc6..7258c95e895e 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -1236,8 +1236,6 @@ static void after_state_ch(struct drbd_conf *mdev, union drbd_state os,
 	/* Last part of the attaching process ... */
 	if (ns.conn >= C_CONNECTED &&
 	    os.disk == D_ATTACHING && ns.disk == D_NEGOTIATING) {
-		kfree(mdev->p_uuid); /* We expect to receive up-to-date UUIDs soon. */
-		mdev->p_uuid = NULL; /* ...to not use the old ones in the mean time */
 		drbd_send_sizes(mdev, 0, 0);  /* to start sync... */
 		drbd_send_uuids(mdev);
 		drbd_send_state(mdev);
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 632e3245d1bb..2151f18b21de 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -1114,6 +1114,12 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp
 		mdev->new_state_tmp.i = ns.i;
 		ns.i = os.i;
 		ns.disk = D_NEGOTIATING;
+
+		/* We expect to receive up-to-date UUIDs soon.
+		   To avoid a race in receive_state, free p_uuid while
+		   holding req_lock. I.e. atomic with the state change */
+		kfree(mdev->p_uuid);
+		mdev->p_uuid = NULL;
 	}
 
 	rv = _drbd_set_state(mdev, ns, CS_VERBOSE, NULL);
diff --git a/include/linux/drbd.h b/include/linux/drbd.h
index 30da4ae48972..b8d2516668aa 100644
--- a/include/linux/drbd.h
+++ b/include/linux/drbd.h
@@ -53,7 +53,7 @@
 
 
 extern const char *drbd_buildtag(void);
-#define REL_VERSION "8.3.8rc2"
+#define REL_VERSION "8.3.8"
 #define API_VERSION 88
 #define PRO_VERSION_MIN 86
 #define PRO_VERSION_MAX 94
-- 
cgit v1.2.3-55-g7522


From d4a3895f5d024b47ef8e9d98c59a9b86dcdcef59 Mon Sep 17 00:00:00 2001
From: Jens Axboe
Date: Mon, 14 Jun 2010 12:55:09 +0200
Subject: cpqarray: fix wrong __init type on pci probe function

It needs to be __devinit, not __init.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 drivers/block/cpqarray.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 91d11631cec9..95ae5b98c271 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -503,7 +503,7 @@ Enomem4:
 	return -1;
 }
 
-static int __init cpqarray_init_one( struct pci_dev *pdev,
+static int __devinit cpqarray_init_one( struct pci_dev *pdev,
 	const struct pci_device_id *ent)
 {
 	int i;
-- 
cgit v1.2.3-55-g7522


From 552618d124b68d41c2effaaaa3ca5b8ce9598502 Mon Sep 17 00:00:00 2001
From: Jens Axboe
Date: Mon, 14 Jun 2010 15:21:33 +0200
Subject: cpqarray: fix two more wrong section type

cpqarray_register_ctlr() and cpqarray_eisa_detect() also
need to be marked as __devinit.

Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 drivers/block/cpqarray.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c
index 95ae5b98c271..abb4ec6690fc 100644
--- a/drivers/block/cpqarray.c
+++ b/drivers/block/cpqarray.c
@@ -386,7 +386,7 @@ static void __devexit cpqarray_remove_one_eisa (int i)
 }
 
 /* pdev is NULL for eisa */
-static int __init cpqarray_register_ctlr( int i, struct pci_dev *pdev)
+static int __devinit cpqarray_register_ctlr( int i, struct pci_dev *pdev)
 {
 	struct request_queue *q;
 	int j;
@@ -740,7 +740,7 @@ __setup("smart2=", cpqarray_setup);
 /*
  * Find an EISA controller's signature.  Set up an hba if we find it.
  */
-static int __init cpqarray_eisa_detect(void)
+static int __devinit cpqarray_eisa_detect(void)
 {
 	int i=0, j;
 	__u32 board_id;
-- 
cgit v1.2.3-55-g7522


From da5ae1cfff4cc5b9392eab59b227ad907626d7aa Mon Sep 17 00:00:00 2001
From: Reinette Chatre
Date: Fri, 28 May 2010 09:28:39 -0700
Subject: iwlwifi: serialize station management actions

We are seeing some race conditions between incoming station management
requests (station add/remove) and the internal unassoc RXON command that
modifies station table. Modify these flows to require the mutex to be held
and thus serializing them.

This fixes http://bugzilla.intellinuxwireless.org/show_bug.cgi?id=2207

Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn.c      | 8 ++++++--
 drivers/net/wireless/iwlwifi/iwl-sta.c      | 4 ++++
 drivers/net/wireless/iwlwifi/iwl3945-base.c | 9 +++++++--
 3 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 7726e67044c0..24aff654fa9c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -3391,10 +3391,12 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
 	int ret;
 	u8 sta_id;
 
-	sta_priv->common.sta_id = IWL_INVALID_STATION;
-
 	IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
 			sta->addr);
+	mutex_lock(&priv->mutex);
+	IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
+			sta->addr);
+	sta_priv->common.sta_id = IWL_INVALID_STATION;
 
 	atomic_set(&sta_priv->pending_frames, 0);
 	if (vif->type == NL80211_IFTYPE_AP)
@@ -3406,6 +3408,7 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
 		IWL_ERR(priv, "Unable to add station %pM (%d)\n",
 			sta->addr, ret);
 		/* Should we return success if return code is EEXIST ? */
+		mutex_unlock(&priv->mutex);
 		return ret;
 	}
 
@@ -3415,6 +3418,7 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
 	IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
 		       sta->addr);
 	iwl_rs_rate_init(priv, sta, sta_id);
+	mutex_unlock(&priv->mutex);
 
 	return 0;
 }
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 83a26361a9b5..c27c13fbb1ae 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -1373,10 +1373,14 @@ int iwl_mac_sta_remove(struct ieee80211_hw *hw,
 
 	IWL_DEBUG_INFO(priv, "received request to remove station %pM\n",
 			sta->addr);
+	mutex_lock(&priv->mutex);
+	IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n",
+			sta->addr);
 	ret = iwl_remove_station(priv, sta_common->sta_id, sta->addr);
 	if (ret)
 		IWL_ERR(priv, "Error removing station %pM\n",
 			sta->addr);
+	mutex_unlock(&priv->mutex);
 	return ret;
 }
 EXPORT_SYMBOL(iwl_mac_sta_remove);
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 6c353cacc8d6..a27872de4106 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -3437,10 +3437,13 @@ static int iwl3945_mac_sta_add(struct ieee80211_hw *hw,
 	bool is_ap = vif->type == NL80211_IFTYPE_STATION;
 	u8 sta_id;
 
-	sta_priv->common.sta_id = IWL_INVALID_STATION;
-
 	IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
 			sta->addr);
+	mutex_lock(&priv->mutex);
+	IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
+			sta->addr);
+	sta_priv->common.sta_id = IWL_INVALID_STATION;
+
 
 	ret = iwl_add_station_common(priv, sta->addr, is_ap, &sta->ht_cap,
 				     &sta_id);
@@ -3448,6 +3451,7 @@ static int iwl3945_mac_sta_add(struct ieee80211_hw *hw,
 		IWL_ERR(priv, "Unable to add station %pM (%d)\n",
 			sta->addr, ret);
 		/* Should we return success if return code is EEXIST ? */
+		mutex_unlock(&priv->mutex);
 		return ret;
 	}
 
@@ -3457,6 +3461,7 @@ static int iwl3945_mac_sta_add(struct ieee80211_hw *hw,
 	IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
 		       sta->addr);
 	iwl3945_rs_rate_init(priv, sta, sta_id);
+	mutex_unlock(&priv->mutex);
 
 	return 0;
 }
-- 
cgit v1.2.3-55-g7522


From b561e8274f75831ee87e4ea378cbb1f9f050a51a Mon Sep 17 00:00:00 2001
From: Shanyu Zhao
Date: Tue, 1 Jun 2010 17:13:58 -0700
Subject: iwlagn: verify flow id in compressed BA packet

The flow id (scd_flow) in a compressed BA packet should match the txq_id
of the queue from which the aggregated packets were sent. However, in
some hardware like the 1000 series, sometimes the flow id is 0 for the
txq_id (10 to 19). This can cause the annoying message:
[ 2213.306191] iwlagn 0000:01:00.0: Received BA when not expected
[ 2213.310178] iwlagn 0000:01:00.0: Read index for DMA queue txq id (0),
index 5, is out of range [0-256] 7 7.

And even worse, if agg->wait_for_ba is true when the bad BA is arriving,
this can cause system hang due to NULL pointer dereference because the
code is operating in a wrong tx queue!

Signed-off-by: Shanyu Zhao <shanyu.zhao@intel.com>
Signed-off-by: Pradeep Kulkarni <pradeepx.kulkarni@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-agn-tx.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
index a732f1094e5d..7d614c4d3c62 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
@@ -1299,6 +1299,11 @@ void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,
 	sta_id = ba_resp->sta_id;
 	tid = ba_resp->tid;
 	agg = &priv->stations[sta_id].tid[tid].agg;
+	if (unlikely(agg->txq_id != scd_flow)) {
+		IWL_ERR(priv, "BA scd_flow %d does not match txq_id %d\n",
+			scd_flow, agg->txq_id);
+		return;
+	}
 
 	/* Find index just before block-ack window */
 	index = iwl_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
-- 
cgit v1.2.3-55-g7522


From 13deb23a52c13053fc509f119eb80b903c65a879 Mon Sep 17 00:00:00 2001
From: Prarit Bhargava
Date: Thu, 10 Jun 2010 08:08:42 -0400
Subject: libertas_tf: Fix warning in lbtf_rx for stats struct

Fixes linux-2.6 warning:

drivers/net/wireless/libertas_tf/main.c: In function 'lbtf_rx':
drivers/net/wireless/libertas_tf/main.c:578: warning: 'stats.antenna' is used uninitialized in this function
drivers/net/wireless/libertas_tf/main.c:578: warning: 'stats.mactime' is used uninitialized in this function

stats struct needs to be set to 0 before use.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/libertas_tf/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/libertas_tf/main.c b/drivers/net/wireless/libertas_tf/main.c
index 6a04c2157f73..817fffc0de4b 100644
--- a/drivers/net/wireless/libertas_tf/main.c
+++ b/drivers/net/wireless/libertas_tf/main.c
@@ -549,7 +549,7 @@ int lbtf_rx(struct lbtf_private *priv, struct sk_buff *skb)
 
 	prxpd = (struct rxpd *) skb->data;
 
-	stats.flag = 0;
+	memset(&stats, 0, sizeof(stats));
 	if (!(prxpd->status & cpu_to_le16(MRVDRV_RXPD_STATUS_OK)))
 		stats.flag |= RX_FLAG_FAILED_FCS_CRC;
 	stats.freq = priv->cur_freq;
-- 
cgit v1.2.3-55-g7522


From 50900f1698f68127e54c67fdfe829e4a97b1be2b Mon Sep 17 00:00:00 2001
From: Joerg Albert
Date: Sun, 13 Jun 2010 14:22:23 +0200
Subject: p54pci: add Symbol AP-300 minipci adapters pciid

Cc: stable@kernel.org
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/p54/p54pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c
index 07c4528f6e6b..a5ea89cde8c4 100644
--- a/drivers/net/wireless/p54/p54pci.c
+++ b/drivers/net/wireless/p54/p54pci.c
@@ -41,6 +41,8 @@ static DEFINE_PCI_DEVICE_TABLE(p54p_table) = {
 	{ PCI_DEVICE(0x1260, 0x3877) },
 	/* Intersil PRISM Javelin/Xbow Wireless LAN adapter */
 	{ PCI_DEVICE(0x1260, 0x3886) },
+	/* Intersil PRISM Xbow Wireless LAN adapter (Symbol AP-300) */
+	{ PCI_DEVICE(0x1260, 0xffff) },
 	{ },
 };
 
-- 
cgit v1.2.3-55-g7522


From e7fdc95ef8e914ae8625f2ae4b3775b2bc435d3a Mon Sep 17 00:00:00 2001
From: Zhu Yi
Date: Thu, 10 Jun 2010 09:44:29 +0800
Subject: wireless: orphan ipw2x00 drivers

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 MAINTAINERS | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 83be538d26c4..837a7547786b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2966,20 +2966,14 @@ F:	drivers/net/ixgb/
 F:	drivers/net/ixgbe/
 
 INTEL PRO/WIRELESS 2100 NETWORK CONNECTION SUPPORT
-M:	Reinette Chatre <reinette.chatre@intel.com>
-M:	Intel Linux Wireless <ilw@linux.intel.com>
 L:	linux-wireless@vger.kernel.org
-W:	http://ipw2100.sourceforge.net
-S:	Odd Fixes
+S:	Orphan
 F:	Documentation/networking/README.ipw2100
 F:	drivers/net/wireless/ipw2x00/ipw2100.*
 
 INTEL PRO/WIRELESS 2915ABG NETWORK CONNECTION SUPPORT
-M:	Reinette Chatre <reinette.chatre@intel.com>
-M:	Intel Linux Wireless <ilw@linux.intel.com>
 L:	linux-wireless@vger.kernel.org
-W:	http://ipw2200.sourceforge.net
-S:	Odd Fixes
+S:	Orphan
 F:	Documentation/networking/README.ipw2200
 F:	drivers/net/wireless/ipw2x00/ipw2200.*
 
-- 
cgit v1.2.3-55-g7522


From 02a077c52ef7631275a79862ffd9f3dbe9d38bc2 Mon Sep 17 00:00:00 2001
From: Rajiv Andrade
Date: Mon, 14 Jun 2010 13:58:22 -0300
Subject: TPM: ReadPubEK output struct fix

This patch adds a missing element of the ReadPubEK command output,
that prevents future overflow of this buffer when copying the
TPM output result into it.

Prevents a kernel panic in case the user tries to read the
pubek from sysfs.

Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
---
 drivers/char/tpm/tpm.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 8e00b4ddd083..792868d24f2a 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -224,6 +224,7 @@ struct	tpm_readpubek_params_out {
 	u8	algorithm[4];
 	u8	encscheme[2];
 	u8	sigscheme[2];
+	__be32	paramsize;
 	u8	parameters[12]; /*assuming RSA*/
 	__be32	keysize;
 	u8	modulus[256];
-- 
cgit v1.2.3-55-g7522


From 1ab064de4f3037aacb76d297c65d23e1b646fd2e Mon Sep 17 00:00:00 2001
From: Dave Airlie
Date: Wed, 9 Jun 2010 14:03:48 +1000
Subject: drm/radeon: fix dual-head on rv250

Plugged in FireMV with the rv250 on it, and the second crtc/dac didn't work,
we were reading/writing different registers than we were modifying in the code.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_legacy_encoders.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
index 5b07b8848e09..bad77f40a9da 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_encoders.c
@@ -928,16 +928,14 @@ static void radeon_legacy_tv_dac_mode_set(struct drm_encoder *encoder,
 	if (ASIC_IS_R300(rdev)) {
 		gpiopad_a = RREG32(RADEON_GPIOPAD_A) | 1;
 		disp_output_cntl = RREG32(RADEON_DISP_OUTPUT_CNTL);
-	}
-
-	if (rdev->family == CHIP_R200 || ASIC_IS_R300(rdev))
-		disp_tv_out_cntl = RREG32(RADEON_DISP_TV_OUT_CNTL);
-	else
+	} else if (rdev->family != CHIP_R200)
 		disp_hw_debug = RREG32(RADEON_DISP_HW_DEBUG);
-
-	if (rdev->family == CHIP_R200)
+	else if (rdev->family == CHIP_R200)
 		fp2_gen_cntl = RREG32(RADEON_FP2_GEN_CNTL);
 
+	if (rdev->family >= CHIP_R200)
+		disp_tv_out_cntl = RREG32(RADEON_DISP_TV_OUT_CNTL);
+
 	if (is_tv) {
 		uint32_t dac_cntl;
 
@@ -1002,15 +1000,13 @@ static void radeon_legacy_tv_dac_mode_set(struct drm_encoder *encoder,
 	if (ASIC_IS_R300(rdev)) {
 		WREG32_P(RADEON_GPIOPAD_A, gpiopad_a, ~1);
 		WREG32(RADEON_DISP_OUTPUT_CNTL, disp_output_cntl);
-	}
+	} else if (rdev->family != CHIP_R200)
+		WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug);
+	else if (rdev->family == CHIP_R200)
+		WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl);
 
 	if (rdev->family >= CHIP_R200)
 		WREG32(RADEON_DISP_TV_OUT_CNTL, disp_tv_out_cntl);
-	else
-		WREG32(RADEON_DISP_HW_DEBUG, disp_hw_debug);
-
-	if (rdev->family == CHIP_R200)
-		WREG32(RADEON_FP2_GEN_CNTL, fp2_gen_cntl);
 
 	if (is_tv)
 		radeon_legacy_tv_mode_set(encoder, mode, adjusted_mode);
-- 
cgit v1.2.3-55-g7522


From f5c5f040b565435e9a85898dc87ab365395e0603 Mon Sep 17 00:00:00 2001
From: Dave Airlie
Date: Fri, 11 Jun 2010 14:40:16 +1000
Subject: radeon/kms: fix powerpc/rn50 untiled behaviour.

Installing 2.6.34 on a Power5/rn50 combo machine, X showed buggy sw rendering,
enabling tiling in the DDX fixed it. Investigation showed that a further /16
was needed in the untiled case on this chipset. Need further investigations
on what other chips this could affect, possibly rv100->rv280.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/r100.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index cf89aa2eb28c..1930db6d1771 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -2604,12 +2604,6 @@ int r100_set_surface_reg(struct radeon_device *rdev, int reg,
 	int surf_index = reg * 16;
 	int flags = 0;
 
-	/* r100/r200 divide by 16 */
-	if (rdev->family < CHIP_R300)
-		flags = pitch / 16;
-	else
-		flags = pitch / 8;
-
 	if (rdev->family <= CHIP_RS200) {
 		if ((tiling_flags & (RADEON_TILING_MACRO|RADEON_TILING_MICRO))
 				 == (RADEON_TILING_MACRO|RADEON_TILING_MICRO))
@@ -2633,6 +2627,20 @@ int r100_set_surface_reg(struct radeon_device *rdev, int reg,
 	if (tiling_flags & RADEON_TILING_SWAP_32BIT)
 		flags |= RADEON_SURF_AP0_SWP_32BPP | RADEON_SURF_AP1_SWP_32BPP;
 
+	/* when we aren't tiling the pitch seems to needs to be furtherdivided down. - tested on power5 + rn50 server */
+	if (tiling_flags & (RADEON_TILING_SWAP_16BIT | RADEON_TILING_SWAP_32BIT)) {
+		if (!(tiling_flags & (RADEON_TILING_MACRO | RADEON_TILING_MICRO)))
+			if (ASIC_IS_RN50(rdev))
+				pitch /= 16;
+	}
+
+	/* r100/r200 divide by 16 */
+	if (rdev->family < CHIP_R300)
+		flags |= pitch / 16;
+	else
+		flags |= pitch / 8;
+
+
 	DRM_DEBUG("writing surface %d %d %x %x\n", reg, flags, offset, offset+obj_size-1);
 	WREG32(RADEON_SURFACE0_INFO + surf_index, flags);
 	WREG32(RADEON_SURFACE0_LOWER_BOUND + surf_index, offset);
-- 
cgit v1.2.3-55-g7522


From da931a931da85218add949266238c54b5fecd37f Mon Sep 17 00:00:00 2001
From: Dave Airlie
Date: Tue, 15 Jun 2010 09:52:37 +1000
Subject: agp: drop vmalloc flag.

Since the code that was too ugly to live is upstream, we can use it now,
instead of rolling our own.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/char/agp/generic.c  | 4 +---
 include/linux/agp_backend.h | 1 -
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index 4b51982fd23a..4e414417730b 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -97,20 +97,18 @@ EXPORT_SYMBOL(agp_flush_chipset);
 void agp_alloc_page_array(size_t size, struct agp_memory *mem)
 {
 	mem->pages = NULL;
-	mem->vmalloc_flag = false;
 
 	if (size <= 2*PAGE_SIZE)
 		mem->pages = kmalloc(size, GFP_KERNEL | __GFP_NORETRY);
 	if (mem->pages == NULL) {
 		mem->pages = vmalloc(size);
-		mem->vmalloc_flag = true;
 	}
 }
 EXPORT_SYMBOL(agp_alloc_page_array);
 
 void agp_free_page_array(struct agp_memory *mem)
 {
-	if (mem->vmalloc_flag) {
+	if (is_vmalloc_addr(mem->pages)) {
 		vfree(mem->pages);
 	} else {
 		kfree(mem->pages);
diff --git a/include/linux/agp_backend.h b/include/linux/agp_backend.h
index 9101ed64f803..09ea4a1e9505 100644
--- a/include/linux/agp_backend.h
+++ b/include/linux/agp_backend.h
@@ -79,7 +79,6 @@ struct agp_memory {
 	u32 physical;
 	bool is_bound;
 	bool is_flushed;
-	bool vmalloc_flag;
 	/* list of agp_memory mapped to the aperture */
 	struct list_head mapped_list;
 	/* DMA-mapped addresses */
-- 
cgit v1.2.3-55-g7522


From 1c48bc5f71cd7783e19fb8d9462be53f829be177 Mon Sep 17 00:00:00 2001
From: Dave Airlie
Date: Tue, 15 Jun 2010 11:02:05 +1000
Subject: agp: add no warn since we have a fallback to vmalloc paths

also drop the NORETRY we can probably nearly always satisfy order 1 allocs now,
and again the vmalloc path is there.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/char/agp/generic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index 4e414417730b..d2abf5143983 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -99,7 +99,7 @@ void agp_alloc_page_array(size_t size, struct agp_memory *mem)
 	mem->pages = NULL;
 
 	if (size <= 2*PAGE_SIZE)
-		mem->pages = kmalloc(size, GFP_KERNEL | __GFP_NORETRY);
+		mem->pages = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
 	if (mem->pages == NULL) {
 		mem->pages = vmalloc(size);
 	}
-- 
cgit v1.2.3-55-g7522


From 45ac22c81b1088f5ac08dc5367f78c192d68d756 Mon Sep 17 00:00:00 2001
From: Li Peng
Date: Sat, 12 Jun 2010 23:38:35 +0800
Subject: drm/i915: Turn on 945 self-refresh only if single CRTC is active

Enable self-refresh on 945 when just one CRTC is activated.
Otherwise user would get display flicker with dual display.

This fixes https://bugs.freedesktop.org/show_bug.cgi?id=27667

Signed-off-by: Li Peng <peng.li@intel.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/intel_display.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a8d65b7cb72a..fdeff4353725 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4483,6 +4483,7 @@ static void intel_idle_update(struct work_struct *work)
 	struct drm_device *dev = dev_priv->dev;
 	struct drm_crtc *crtc;
 	struct intel_crtc *intel_crtc;
+	int enabled = 0;
 
 	if (!i915_powersave)
 		return;
@@ -4491,21 +4492,22 @@ static void intel_idle_update(struct work_struct *work)
 
 	i915_update_gfx_val(dev_priv);
 
-	if (IS_I945G(dev) || IS_I945GM(dev)) {
-		DRM_DEBUG_DRIVER("enable memory self refresh on 945\n");
-		I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN);
-	}
-
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 		/* Skip inactive CRTCs */
 		if (!crtc->fb)
 			continue;
 
+		enabled++;
 		intel_crtc = to_intel_crtc(crtc);
 		if (!intel_crtc->busy)
 			intel_decrease_pllclock(crtc);
 	}
 
+	if ((enabled == 1) && (IS_I945G(dev) || IS_I945GM(dev))) {
+		DRM_DEBUG_DRIVER("enable memory self refresh on 945\n");
+		I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN_MASK | FW_BLC_SELF_EN);
+	}
+
 	mutex_unlock(&dev->struct_mutex);
 }
 
-- 
cgit v1.2.3-55-g7522


From be26a10bd10271b4a810ece2e540c0cdd77881bc Mon Sep 17 00:00:00 2001
From: Zou Nan hai
Date: Sat, 12 Jun 2010 17:40:24 +0800
Subject: drm/i915: Fix incorrect intel_ring_begin size in BSD ringbuffer.

The ring_begin API was taking a number of bytes, while all of our
other begin/end macros take number of dwords.  Change the API over to
dwords to prevent future bugs.

Signed-off-by: Zou Nan hai <nanhai.zou@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_drv.h         | 2 +-
 drivers/gpu/drm/i915/intel_ringbuffer.c | 9 +++++----
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 9ed8ecd95801..f3f681fca76a 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1075,7 +1075,7 @@ extern int intel_trans_dp_port_sel (struct drm_crtc *crtc);
 	drm_i915_private_t *dev_priv = dev->dev_private;                \
 	if (I915_VERBOSE)						\
 		DRM_DEBUG("   BEGIN_LP_RING %x\n", (int)(n));		\
-	intel_ring_begin(dev, &dev_priv->render_ring, 4*(n));		\
+	intel_ring_begin(dev, &dev_priv->render_ring, (n));		\
 } while (0)
 
 
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index cea4f1a8709e..a3cac5791d76 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -94,7 +94,7 @@ render_ring_flush(struct drm_device *dev,
 #if WATCH_EXEC
 		DRM_INFO("%s: queue flush %08x to ring\n", __func__, cmd);
 #endif
-		intel_ring_begin(dev, ring, 8);
+		intel_ring_begin(dev, ring, 2);
 		intel_ring_emit(dev, ring, cmd);
 		intel_ring_emit(dev, ring, MI_NOOP);
 		intel_ring_advance(dev, ring);
@@ -358,7 +358,7 @@ bsd_ring_flush(struct drm_device *dev,
 		u32     invalidate_domains,
 		u32     flush_domains)
 {
-	intel_ring_begin(dev, ring, 8);
+	intel_ring_begin(dev, ring, 2);
 	intel_ring_emit(dev, ring, MI_FLUSH);
 	intel_ring_emit(dev, ring, MI_NOOP);
 	intel_ring_advance(dev, ring);
@@ -721,8 +721,9 @@ int intel_wait_ring_buffer(struct drm_device *dev,
 }
 
 void intel_ring_begin(struct drm_device *dev,
-		struct intel_ring_buffer *ring, int n)
+		struct intel_ring_buffer *ring, int num_dwords)
 {
+	int n = 4*num_dwords;
 	if (unlikely(ring->tail + n > ring->size))
 		intel_wrap_ring_buffer(dev, ring);
 	if (unlikely(ring->space < n))
@@ -752,7 +753,7 @@ void intel_fill_struct(struct drm_device *dev,
 {
 	unsigned int *virt = ring->virtual_start + ring->tail;
 	BUG_ON((len&~(4-1)) != 0);
-	intel_ring_begin(dev, ring, len);
+	intel_ring_begin(dev, ring, len/4);
 	memcpy(virt, data, len);
 	ring->tail += len;
 	ring->tail &= ring->size - 1;
-- 
cgit v1.2.3-55-g7522


From 8054a3428fbec2d91dfeb5bd78d7e75064cf163b Mon Sep 17 00:00:00 2001
From: Christoph Egger
Date: Tue, 8 Jun 2010 23:59:55 +0000
Subject: powerpc: Remove dead CONFIG_HIGHPTE

CONFIG_HIGHPTE doesn't exist in Kconfig, therefore removing all
references for it from the source code.

Signed-off-by: Christoph Egger <siccegge@cs.fau.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/mm/pgtable_32.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 9fc02dc72ce9..34347b2e7e31 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -115,11 +115,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
 	struct page *ptepage;
 
-#ifdef CONFIG_HIGHPTE
-	gfp_t flags = GFP_KERNEL | __GFP_HIGHMEM | __GFP_REPEAT | __GFP_ZERO;
-#else
 	gfp_t flags = GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO;
-#endif
 
 	ptepage = alloc_pages(flags, 0);
 	if (!ptepage)
-- 
cgit v1.2.3-55-g7522


From b5416ca9f824d3deb1e25a32683100360e104b72 Mon Sep 17 00:00:00 2001
From: Anton Blanchard
Date: Mon, 7 Jun 2010 15:34:38 +0000
Subject: powerpc: Move kdump default base address to 64MB on 64bit

We are seeing boot fails on some System p machines when using the kdump
crashkernel= boot option. The default kdump base address is 32MB, so if we
reserve 256MB for kdump then we reserve all of the RMO except the first 32MB.

We really want kdump to reserve some memory in the RMO and most of it
elsewhere but that will require more significant changes. For now we can shift
the default base address to 64MB when CONFIG_PPC64 and CONFIG_RELOCATABLE are
set. This isn't quite correct since what we really care about is the kdump
kernel is relocatable, but we already make the assumption that base kernel
and kdump kernel have the same CONFIG_RELOCATABLE setting, eg:

#ifndef CONFIG_RELOCATABLE
        if (crashk_res.start != KDUMP_KERNELBASE)
                printk("Crash kernel location must be 0x%x\n",
                                KDUMP_KERNELBASE);
...

RTAS is instantiated towards the top of our RMO, so if we were to go any
higher we risk not having enough RMO memory for the kdump kernel on boxes
with a 128MB RMO.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/kdump.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/kdump.h b/arch/powerpc/include/asm/kdump.h
index 5ebfe5d3c61f..6857af58b02e 100644
--- a/arch/powerpc/include/asm/kdump.h
+++ b/arch/powerpc/include/asm/kdump.h
@@ -3,8 +3,17 @@
 
 #include <asm/page.h>
 
-/* Kdump kernel runs at 32 MB, change at your peril. */
+/*
+ * If CONFIG_RELOCATABLE is enabled we can place the kdump kernel anywhere.
+ * To keep enough space in the RMO for the first stage kernel on 64bit, we
+ * place it at 64MB. If CONFIG_RELOCATABLE is not enabled we must place
+ * the second stage at 32MB.
+ */
+#if defined(CONFIG_RELOCATABLE) && defined(CONFIG_PPC64)
+#define KDUMP_KERNELBASE	0x4000000
+#else
 #define KDUMP_KERNELBASE	0x2000000
+#endif
 
 /* How many bytes to reserve at zero for kdump. The reserve limit should
  * be greater or equal to the trampoline's end address.
-- 
cgit v1.2.3-55-g7522


From 97bb63e49600c18a8e8384d9c445b8c8b5b792af Mon Sep 17 00:00:00 2001
From: Paul Mackerras
Date: Mon, 7 Jun 2010 14:27:10 +0000
Subject: powerpc/boot: Remove addRamdisk.c since it is now unused

It was used in the dim distant past for adding initrds to images
for legacy iSeries, but it's not even used for that now that we
have initramfs.  So remove it.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/boot/Makefile     |   2 +-
 arch/powerpc/boot/addRamDisk.c | 311 -----------------------------------------
 2 files changed, 1 insertion(+), 312 deletions(-)
 delete mode 100644 arch/powerpc/boot/addRamDisk.c

diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index ad0df7d0a643..fae8192c8fcc 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -141,7 +141,7 @@ $(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
 $(obj)/wrapper.a: $(obj-wlib) FORCE
 	$(call if_changed,bootar)
 
-hostprogs-y	:= addnote addRamDisk hack-coff mktree
+hostprogs-y	:= addnote hack-coff mktree
 
 targets		+= $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
 extra-y		:= $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
diff --git a/arch/powerpc/boot/addRamDisk.c b/arch/powerpc/boot/addRamDisk.c
deleted file mode 100644
index 893f446cbd22..000000000000
--- a/arch/powerpc/boot/addRamDisk.c
+++ /dev/null
@@ -1,311 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <netinet/in.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <string.h>
-#include <elf.h>
-
-#define ElfHeaderSize  (64 * 1024)
-#define ElfPages  (ElfHeaderSize / 4096)
-#define KERNELBASE (0xc000000000000000)
-#define _ALIGN_UP(addr,size)	(((addr)+((size)-1))&(~((size)-1)))
-
-struct addr_range {
-	unsigned long long addr;
-	unsigned long memsize;
-	unsigned long offset;
-};
-
-static int check_elf64(void *p, int size, struct addr_range *r)
-{
-	Elf64_Ehdr *elf64 = p;
-	Elf64_Phdr *elf64ph;
-
-	if (elf64->e_ident[EI_MAG0] != ELFMAG0 ||
-	    elf64->e_ident[EI_MAG1] != ELFMAG1 ||
-	    elf64->e_ident[EI_MAG2] != ELFMAG2 ||
-	    elf64->e_ident[EI_MAG3] != ELFMAG3 ||
-	    elf64->e_ident[EI_CLASS] != ELFCLASS64 ||
-	    elf64->e_ident[EI_DATA] != ELFDATA2MSB ||
-	    elf64->e_type != ET_EXEC || elf64->e_machine != EM_PPC64)
-		return 0;
-
-	if ((elf64->e_phoff + sizeof(Elf64_Phdr)) > size)
-		return 0;
-
-	elf64ph = (Elf64_Phdr *) ((unsigned long)elf64 +
-				  (unsigned long)elf64->e_phoff);
-
-	r->memsize = (unsigned long)elf64ph->p_memsz;
-	r->offset = (unsigned long)elf64ph->p_offset;
-	r->addr = (unsigned long long)elf64ph->p_vaddr;
-
-#ifdef DEBUG
-	printf("PPC64 ELF file, ph:\n");
-	printf("p_type   0x%08x\n", elf64ph->p_type);
-	printf("p_flags  0x%08x\n", elf64ph->p_flags);
-	printf("p_offset 0x%016llx\n", elf64ph->p_offset);
-	printf("p_vaddr  0x%016llx\n", elf64ph->p_vaddr);
-	printf("p_paddr  0x%016llx\n", elf64ph->p_paddr);
-	printf("p_filesz 0x%016llx\n", elf64ph->p_filesz);
-	printf("p_memsz  0x%016llx\n", elf64ph->p_memsz);
-	printf("p_align  0x%016llx\n", elf64ph->p_align);
-	printf("... skipping 0x%08lx bytes of ELF header\n",
-	       (unsigned long)elf64ph->p_offset);
-#endif
-
-	return 64;
-}
-static void get4k(FILE *file, char *buf )
-{
-	unsigned j;
-	unsigned num = fread(buf, 1, 4096, file);
-	for ( j=num; j<4096; ++j )
-		buf[j] = 0;
-}
-
-static void put4k(FILE *file, char *buf )
-{
-	fwrite(buf, 1, 4096, file);
-}
-
-static void death(const char *msg, FILE *fdesc, const char *fname)
-{
-	fprintf(stderr, msg);
-	fclose(fdesc);
-	unlink(fname);
-	exit(1);
-}
-
-int main(int argc, char **argv)
-{
-	char inbuf[4096];
-	struct addr_range vmlinux;
-	FILE *ramDisk;
-	FILE *inputVmlinux;
-	FILE *outputVmlinux;
-
-	char *rd_name, *lx_name, *out_name;
-
-	size_t i;
-	unsigned long ramFileLen;
-	unsigned long ramLen;
-	unsigned long roundR;
-	unsigned long offset_end;
-
-	unsigned long kernelLen;
-	unsigned long actualKernelLen;
-	unsigned long round;
-	unsigned long roundedKernelLen;
-	unsigned long ramStartOffs;
-	unsigned long ramPages;
-	unsigned long roundedKernelPages;
-	unsigned long hvReleaseData;
-	u_int32_t eyeCatcher = 0xc8a5d9c4;
-	unsigned long naca;
-	unsigned long xRamDisk;
-	unsigned long xRamDiskSize;
-	long padPages;
-  
-  
-	if (argc < 2) {
-		fprintf(stderr, "Name of RAM disk file missing.\n");
-		exit(1);
-	}
-	rd_name = argv[1];
-
-	if (argc < 3) {
-		fprintf(stderr, "Name of vmlinux file missing.\n");
-		exit(1);
-	}
-	lx_name = argv[2];
-
-	if (argc < 4) {
-		fprintf(stderr, "Name of vmlinux output file missing.\n");
-		exit(1);
-	}
-	out_name = argv[3];
-
-
-	ramDisk = fopen(rd_name, "r");
-	if ( ! ramDisk ) {
-		fprintf(stderr, "RAM disk file \"%s\" failed to open.\n", rd_name);
-		exit(1);
-	}
-
-	inputVmlinux = fopen(lx_name, "r");
-	if ( ! inputVmlinux ) {
-		fprintf(stderr, "vmlinux file \"%s\" failed to open.\n", lx_name);
-		exit(1);
-	}
-  
-	outputVmlinux = fopen(out_name, "w+");
-	if ( ! outputVmlinux ) {
-		fprintf(stderr, "output vmlinux file \"%s\" failed to open.\n", out_name);
-		exit(1);
-	}
-
-	i = fread(inbuf, 1, sizeof(inbuf), inputVmlinux);
-	if (i != sizeof(inbuf)) {
-		fprintf(stderr, "can not read vmlinux file %s: %u\n", lx_name, i);
-		exit(1);
-	}
-
-	i = check_elf64(inbuf, sizeof(inbuf), &vmlinux);
-	if (i == 0) {
-		fprintf(stderr, "You must have a linux kernel specified as argv[2]\n");
-		exit(1);
-	}
-
-	/* Input Vmlinux file */
-	fseek(inputVmlinux, 0, SEEK_END);
-	kernelLen = ftell(inputVmlinux);
-	fseek(inputVmlinux, 0, SEEK_SET);
-	printf("kernel file size = %lu\n", kernelLen);
-
-	actualKernelLen = kernelLen - ElfHeaderSize;
-
-	printf("actual kernel length (minus ELF header) = %lu\n", actualKernelLen);
-
-	round = actualKernelLen % 4096;
-	roundedKernelLen = actualKernelLen;
-	if ( round )
-		roundedKernelLen += (4096 - round);
-	printf("Vmlinux length rounded up to a 4k multiple = %ld/0x%lx \n", roundedKernelLen, roundedKernelLen);
-	roundedKernelPages = roundedKernelLen / 4096;
-	printf("Vmlinux pages to copy = %ld/0x%lx \n", roundedKernelPages, roundedKernelPages);
-
-	offset_end = _ALIGN_UP(vmlinux.memsize, 4096);
-	/* calc how many pages we need to insert between the vmlinux and the start of the ram disk */
-	padPages = offset_end/4096 - roundedKernelPages;
-
-	/* Check and see if the vmlinux is already larger than _end in System.map */
-	if (padPages < 0) {
-		/* vmlinux is larger than _end - adjust the offset to the start of the embedded ram disk */ 
-		offset_end = roundedKernelLen;
-		printf("vmlinux is larger than _end indicates it needs to be - offset_end = %lx \n", offset_end);
-		padPages = 0;
-		printf("will insert %lx pages between the vmlinux and the start of the ram disk \n", padPages);
-	}
-	else {
-		/* _end is larger than vmlinux - use the offset to _end that we calculated from the system map */
-		printf("vmlinux is smaller than _end indicates is needed - offset_end = %lx \n", offset_end);
-		printf("will insert %lx pages between the vmlinux and the start of the ram disk \n", padPages);
-	}
-
-
-
-	/* Input Ram Disk file */
-	// Set the offset that the ram disk will be started at.
-	ramStartOffs = offset_end;  /* determined from the input vmlinux file and the system map */
-	printf("Ram Disk will start at offset = 0x%lx \n", ramStartOffs);
-  
-	fseek(ramDisk, 0, SEEK_END);
-	ramFileLen = ftell(ramDisk);
-	fseek(ramDisk, 0, SEEK_SET);
-	printf("%s file size = %ld/0x%lx \n", rd_name, ramFileLen, ramFileLen);
-
-	ramLen = ramFileLen;
-
-	roundR = 4096 - (ramLen % 4096);
-	if ( roundR ) {
-		printf("Rounding RAM disk file up to a multiple of 4096, adding %ld/0x%lx \n", roundR, roundR);
-		ramLen += roundR;
-	}
-
-	printf("Rounded RAM disk size is %ld/0x%lx \n", ramLen, ramLen);
-	ramPages = ramLen / 4096;
-	printf("RAM disk pages to copy = %ld/0x%lx\n", ramPages, ramPages);
-
-
-
-  // Copy 64K ELF header
-	for (i=0; i<(ElfPages); ++i) {
-		get4k( inputVmlinux, inbuf );
-		put4k( outputVmlinux, inbuf );
-	}
-
-	/* Copy the vmlinux (as full pages). */
-	fseek(inputVmlinux, ElfHeaderSize, SEEK_SET);
-	for ( i=0; i<roundedKernelPages; ++i ) {
-		get4k( inputVmlinux, inbuf );
-		put4k( outputVmlinux, inbuf );
-	}
-  
-	/* Insert pad pages (if appropriate) that are needed between */
-	/* | the end of the vmlinux and the ram disk. */
-	for (i=0; i<padPages; ++i) {
-		memset(inbuf, 0, 4096);
-		put4k(outputVmlinux, inbuf);
-	}
-
-	/* Copy the ram disk (as full pages). */
-	for ( i=0; i<ramPages; ++i ) {
-		get4k( ramDisk, inbuf );
-		put4k( outputVmlinux, inbuf );
-	}
-
-	/* Close the input files */
-	fclose(ramDisk);
-	fclose(inputVmlinux);
-	/* And flush the written output file */
-	fflush(outputVmlinux);
-
-
-
-	/* Fixup the new vmlinux to contain the ram disk starting offset (xRamDisk) and the ram disk size (xRamDiskSize) */
-	/* fseek to the hvReleaseData pointer */
-	fseek(outputVmlinux, ElfHeaderSize + 0x24, SEEK_SET);
-	if (fread(&hvReleaseData, 4, 1, outputVmlinux) != 1) {
-		death("Could not read hvReleaseData pointer\n", outputVmlinux, out_name);
-	}
-	hvReleaseData = ntohl(hvReleaseData); /* Convert to native int */
-	printf("hvReleaseData is at %08lx\n", hvReleaseData);
-
-	/* fseek to the hvReleaseData */
-	fseek(outputVmlinux, ElfHeaderSize + hvReleaseData, SEEK_SET);
-	if (fread(inbuf, 0x40, 1, outputVmlinux) != 1) {
-		death("Could not read hvReleaseData\n", outputVmlinux, out_name);
-	}
-	/* Check hvReleaseData sanity */
-	if (memcmp(inbuf, &eyeCatcher, 4) != 0) {
-		death("hvReleaseData is invalid\n", outputVmlinux, out_name);
-	}
-	/* Get the naca pointer */
-	naca = ntohl(*((u_int32_t*) &inbuf[0x0C])) - KERNELBASE;
-	printf("Naca is at offset 0x%lx \n", naca);
-
-	/* fseek to the naca */
-	fseek(outputVmlinux, ElfHeaderSize + naca, SEEK_SET);
-	if (fread(inbuf, 0x18, 1, outputVmlinux) != 1) {
-		death("Could not read naca\n", outputVmlinux, out_name);
-	}
-	xRamDisk = ntohl(*((u_int32_t *) &inbuf[0x0c]));
-	xRamDiskSize = ntohl(*((u_int32_t *) &inbuf[0x14]));
-	/* Make sure a RAM disk isn't already present */
-	if ((xRamDisk != 0) || (xRamDiskSize != 0)) {
-		death("RAM disk is already attached to this kernel\n", outputVmlinux, out_name);
-	}
-	/* Fill in the values */
-	*((u_int32_t *) &inbuf[0x0c]) = htonl(ramStartOffs);
-	*((u_int32_t *) &inbuf[0x14]) = htonl(ramPages);
-
-	/* Write out the new naca */
-	fflush(outputVmlinux);
-	fseek(outputVmlinux, ElfHeaderSize + naca, SEEK_SET);
-	if (fwrite(inbuf, 0x18, 1, outputVmlinux) != 1) {
-		death("Could not write naca\n", outputVmlinux, out_name);
-	}
-	printf("Ram Disk of 0x%lx pages is attached to the kernel at offset 0x%08lx\n",
-	       ramPages, ramStartOffs);
-
-	/* Done */
-	fclose(outputVmlinux);
-	/* Set permission to executable */
-	chmod(out_name, S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH);
-
-	return 0;
-}
-
-- 
cgit v1.2.3-55-g7522


From 65cf840ff4b63852d34d577d559978ccfc554a6c Mon Sep 17 00:00:00 2001
From: Grant Likely
Date: Sun, 6 Jun 2010 17:46:03 +0000
Subject: powerpc: Disable CONFIG_SYSFS_DEPRECATED

Acked-by: Grant Likely <grant.likely@secretlab.ca>

On 5 May 2010 21:33, "Anton Blanchard" <anton@samba.org> wrote:

CONFIG_SYSFS_DEPRECATED can cause issues with newer distros and should not
be required for any distro in the last 3 or 4 years, so disable it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/configs/40x/acadia_defconfig        | 3 +--
 arch/powerpc/configs/40x/ep405_defconfig         | 3 +--
 arch/powerpc/configs/40x/hcu4_defconfig          | 3 +--
 arch/powerpc/configs/40x/kilauea_defconfig       | 3 +--
 arch/powerpc/configs/40x/makalu_defconfig        | 3 +--
 arch/powerpc/configs/40x/virtex_defconfig        | 3 +--
 arch/powerpc/configs/40x/walnut_defconfig        | 3 +--
 arch/powerpc/configs/44x/arches_defconfig        | 3 +--
 arch/powerpc/configs/44x/bamboo_defconfig        | 3 +--
 arch/powerpc/configs/44x/canyonlands_defconfig   | 3 +--
 arch/powerpc/configs/44x/ebony_defconfig         | 3 +--
 arch/powerpc/configs/44x/eiger_defconfig         | 3 +--
 arch/powerpc/configs/44x/katmai_defconfig        | 3 +--
 arch/powerpc/configs/44x/rainier_defconfig       | 3 +--
 arch/powerpc/configs/44x/redwood_defconfig       | 3 +--
 arch/powerpc/configs/44x/sam440ep_defconfig      | 3 +--
 arch/powerpc/configs/44x/sequoia_defconfig       | 3 +--
 arch/powerpc/configs/44x/taishan_defconfig       | 3 +--
 arch/powerpc/configs/44x/virtex5_defconfig       | 3 +--
 arch/powerpc/configs/52xx/cm5200_defconfig       | 3 +--
 arch/powerpc/configs/52xx/lite5200b_defconfig    | 3 +--
 arch/powerpc/configs/52xx/motionpro_defconfig    | 3 +--
 arch/powerpc/configs/52xx/pcm030_defconfig       | 3 +--
 arch/powerpc/configs/52xx/tqm5200_defconfig      | 3 +--
 arch/powerpc/configs/86xx/gef_ppc9a_defconfig    | 3 +--
 arch/powerpc/configs/86xx/gef_sbc310_defconfig   | 3 +--
 arch/powerpc/configs/86xx/gef_sbc610_defconfig   | 3 +--
 arch/powerpc/configs/86xx/mpc8610_hpcd_defconfig | 3 +--
 arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig | 3 +--
 arch/powerpc/configs/86xx/sbc8641d_defconfig     | 3 +--
 arch/powerpc/configs/adder875_defconfig          | 3 +--
 arch/powerpc/configs/amigaone_defconfig          | 3 +--
 arch/powerpc/configs/c2k_defconfig               | 3 +--
 arch/powerpc/configs/cell_defconfig              | 3 +--
 arch/powerpc/configs/celleb_defconfig            | 3 +--
 arch/powerpc/configs/chrp32_defconfig            | 3 +--
 arch/powerpc/configs/ep8248e_defconfig           | 3 +--
 arch/powerpc/configs/ep88xc_defconfig            | 3 +--
 arch/powerpc/configs/g5_defconfig                | 3 +--
 arch/powerpc/configs/gamecube_defconfig          | 3 +--
 arch/powerpc/configs/holly_defconfig             | 1 -
 arch/powerpc/configs/iseries_defconfig           | 3 +--
 arch/powerpc/configs/linkstation_defconfig       | 3 +--
 arch/powerpc/configs/maple_defconfig             | 3 +--
 arch/powerpc/configs/mgcoge_defconfig            | 3 +--
 arch/powerpc/configs/mgsuvd_defconfig            | 3 +--
 arch/powerpc/configs/mpc512x_defconfig           | 3 +--
 arch/powerpc/configs/mpc5200_defconfig           | 3 +--
 arch/powerpc/configs/mpc7448_hpc2_defconfig      | 3 +--
 arch/powerpc/configs/pasemi_defconfig            | 3 +--
 arch/powerpc/configs/pmac32_defconfig            | 3 +--
 arch/powerpc/configs/ppc40x_defconfig            | 3 +--
 arch/powerpc/configs/ppc44x_defconfig            | 3 +--
 arch/powerpc/configs/ppc64_defconfig             | 3 +--
 arch/powerpc/configs/ppc64e_defconfig            | 3 +--
 arch/powerpc/configs/pq2fads_defconfig           | 3 +--
 arch/powerpc/configs/prpmc2800_defconfig         | 3 +--
 arch/powerpc/configs/pseries_defconfig           | 3 +--
 arch/powerpc/configs/storcenter_defconfig        | 3 +--
 arch/powerpc/configs/wii_defconfig               | 3 +--
 60 files changed, 59 insertions(+), 119 deletions(-)

diff --git a/arch/powerpc/configs/40x/acadia_defconfig b/arch/powerpc/configs/40x/acadia_defconfig
index 8e95f8d227b9..4aa17b676a3f 100644
--- a/arch/powerpc/configs/40x/acadia_defconfig
+++ b/arch/powerpc/configs/40x/acadia_defconfig
@@ -98,8 +98,7 @@ CONFIG_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/40x/ep405_defconfig b/arch/powerpc/configs/40x/ep405_defconfig
index 918f23fd2b18..9a5f1ab777ed 100644
--- a/arch/powerpc/configs/40x/ep405_defconfig
+++ b/arch/powerpc/configs/40x/ep405_defconfig
@@ -98,8 +98,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/40x/hcu4_defconfig b/arch/powerpc/configs/40x/hcu4_defconfig
index f87ef0382280..0b452135d1d4 100644
--- a/arch/powerpc/configs/40x/hcu4_defconfig
+++ b/arch/powerpc/configs/40x/hcu4_defconfig
@@ -98,8 +98,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/40x/kilauea_defconfig b/arch/powerpc/configs/40x/kilauea_defconfig
index 19fbcb075376..4d2de0bed60e 100644
--- a/arch/powerpc/configs/40x/kilauea_defconfig
+++ b/arch/powerpc/configs/40x/kilauea_defconfig
@@ -98,8 +98,7 @@ CONFIG_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/40x/makalu_defconfig b/arch/powerpc/configs/40x/makalu_defconfig
index eb41cd695979..a1f3f505e4a7 100644
--- a/arch/powerpc/configs/40x/makalu_defconfig
+++ b/arch/powerpc/configs/40x/makalu_defconfig
@@ -98,8 +98,7 @@ CONFIG_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/40x/virtex_defconfig b/arch/powerpc/configs/40x/virtex_defconfig
index 416e79ac0711..c76313577140 100644
--- a/arch/powerpc/configs/40x/virtex_defconfig
+++ b/arch/powerpc/configs/40x/virtex_defconfig
@@ -77,8 +77,7 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/40x/walnut_defconfig b/arch/powerpc/configs/40x/walnut_defconfig
index bfff0eae39d2..6597b2f1d1a8 100644
--- a/arch/powerpc/configs/40x/walnut_defconfig
+++ b/arch/powerpc/configs/40x/walnut_defconfig
@@ -98,8 +98,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/arches_defconfig b/arch/powerpc/configs/44x/arches_defconfig
index 1f6d0490e28d..2d3dfb55fbed 100644
--- a/arch/powerpc/configs/44x/arches_defconfig
+++ b/arch/powerpc/configs/44x/arches_defconfig
@@ -98,8 +98,7 @@ CONFIG_RCU_FANOUT=32
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/bamboo_defconfig b/arch/powerpc/configs/44x/bamboo_defconfig
index 788faac6c27a..51a00c46df19 100644
--- a/arch/powerpc/configs/44x/bamboo_defconfig
+++ b/arch/powerpc/configs/44x/bamboo_defconfig
@@ -102,8 +102,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/canyonlands_defconfig b/arch/powerpc/configs/44x/canyonlands_defconfig
index 4ef8bcab61f8..1028b1bfb602 100644
--- a/arch/powerpc/configs/44x/canyonlands_defconfig
+++ b/arch/powerpc/configs/44x/canyonlands_defconfig
@@ -98,8 +98,7 @@ CONFIG_RCU_FANOUT=32
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/ebony_defconfig b/arch/powerpc/configs/44x/ebony_defconfig
index ca17b1496e32..69f5633cbd4f 100644
--- a/arch/powerpc/configs/44x/ebony_defconfig
+++ b/arch/powerpc/configs/44x/ebony_defconfig
@@ -101,8 +101,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/eiger_defconfig b/arch/powerpc/configs/44x/eiger_defconfig
index e3149bade0b2..dcd859c8b4a6 100644
--- a/arch/powerpc/configs/44x/eiger_defconfig
+++ b/arch/powerpc/configs/44x/eiger_defconfig
@@ -98,8 +98,7 @@ CONFIG_RCU_FANOUT=32
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/katmai_defconfig b/arch/powerpc/configs/44x/katmai_defconfig
index af244e1d255e..a2c24d1e051e 100644
--- a/arch/powerpc/configs/44x/katmai_defconfig
+++ b/arch/powerpc/configs/44x/katmai_defconfig
@@ -97,8 +97,7 @@ CONFIG_RCU_FANOUT=32
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/rainier_defconfig b/arch/powerpc/configs/44x/rainier_defconfig
index 8fed3b26af2e..3bb55b57077e 100644
--- a/arch/powerpc/configs/44x/rainier_defconfig
+++ b/arch/powerpc/configs/44x/rainier_defconfig
@@ -101,8 +101,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/redwood_defconfig b/arch/powerpc/configs/44x/redwood_defconfig
index a67ec91a28c3..684f40dc8a41 100644
--- a/arch/powerpc/configs/44x/redwood_defconfig
+++ b/arch/powerpc/configs/44x/redwood_defconfig
@@ -98,8 +98,7 @@ CONFIG_RCU_FANOUT=32
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/sam440ep_defconfig b/arch/powerpc/configs/44x/sam440ep_defconfig
index 886cb6aa6432..e202924e6173 100644
--- a/arch/powerpc/configs/44x/sam440ep_defconfig
+++ b/arch/powerpc/configs/44x/sam440ep_defconfig
@@ -103,8 +103,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/sequoia_defconfig b/arch/powerpc/configs/44x/sequoia_defconfig
index 1b2f41dbcafb..c348a4662a9e 100644
--- a/arch/powerpc/configs/44x/sequoia_defconfig
+++ b/arch/powerpc/configs/44x/sequoia_defconfig
@@ -102,8 +102,7 @@ CONFIG_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/taishan_defconfig b/arch/powerpc/configs/44x/taishan_defconfig
index 12041d355b8c..f4cb7e84cb83 100644
--- a/arch/powerpc/configs/44x/taishan_defconfig
+++ b/arch/powerpc/configs/44x/taishan_defconfig
@@ -101,8 +101,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/44x/virtex5_defconfig b/arch/powerpc/configs/44x/virtex5_defconfig
index 2518b8568c70..c7ead0ec00bc 100644
--- a/arch/powerpc/configs/44x/virtex5_defconfig
+++ b/arch/powerpc/configs/44x/virtex5_defconfig
@@ -80,8 +80,7 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/52xx/cm5200_defconfig b/arch/powerpc/configs/52xx/cm5200_defconfig
index 218d49b36a0c..7664c83c17c2 100644
--- a/arch/powerpc/configs/52xx/cm5200_defconfig
+++ b/arch/powerpc/configs/52xx/cm5200_defconfig
@@ -95,8 +95,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/52xx/lite5200b_defconfig b/arch/powerpc/configs/52xx/lite5200b_defconfig
index 90492ff25232..eac7c17eef34 100644
--- a/arch/powerpc/configs/52xx/lite5200b_defconfig
+++ b/arch/powerpc/configs/52xx/lite5200b_defconfig
@@ -96,8 +96,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/52xx/motionpro_defconfig b/arch/powerpc/configs/52xx/motionpro_defconfig
index dffc8cac825f..27afb6ecdf61 100644
--- a/arch/powerpc/configs/52xx/motionpro_defconfig
+++ b/arch/powerpc/configs/52xx/motionpro_defconfig
@@ -95,8 +95,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/52xx/pcm030_defconfig b/arch/powerpc/configs/52xx/pcm030_defconfig
index 3cb2a522046a..5fe39ddb4e14 100644
--- a/arch/powerpc/configs/52xx/pcm030_defconfig
+++ b/arch/powerpc/configs/52xx/pcm030_defconfig
@@ -98,8 +98,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 # CONFIG_BLK_DEV_INITRD is not set
diff --git a/arch/powerpc/configs/52xx/tqm5200_defconfig b/arch/powerpc/configs/52xx/tqm5200_defconfig
index 96181c62abfa..a108b84c0074 100644
--- a/arch/powerpc/configs/52xx/tqm5200_defconfig
+++ b/arch/powerpc/configs/52xx/tqm5200_defconfig
@@ -95,8 +95,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/86xx/gef_ppc9a_defconfig b/arch/powerpc/configs/86xx/gef_ppc9a_defconfig
index 183c59c6d896..b728a7d64250 100644
--- a/arch/powerpc/configs/86xx/gef_ppc9a_defconfig
+++ b/arch/powerpc/configs/86xx/gef_ppc9a_defconfig
@@ -103,8 +103,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 CONFIG_RELAY=y
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/86xx/gef_sbc310_defconfig b/arch/powerpc/configs/86xx/gef_sbc310_defconfig
index 1524d948a2ba..8e738de5f6a5 100644
--- a/arch/powerpc/configs/86xx/gef_sbc310_defconfig
+++ b/arch/powerpc/configs/86xx/gef_sbc310_defconfig
@@ -103,8 +103,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 CONFIG_RELAY=y
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/86xx/gef_sbc610_defconfig b/arch/powerpc/configs/86xx/gef_sbc610_defconfig
index 767c204c0603..59bf9e27d7f2 100644
--- a/arch/powerpc/configs/86xx/gef_sbc610_defconfig
+++ b/arch/powerpc/configs/86xx/gef_sbc610_defconfig
@@ -103,8 +103,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 CONFIG_RELAY=y
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/86xx/mpc8610_hpcd_defconfig b/arch/powerpc/configs/86xx/mpc8610_hpcd_defconfig
index 55b9e4e867ac..4e8b01e73245 100644
--- a/arch/powerpc/configs/86xx/mpc8610_hpcd_defconfig
+++ b/arch/powerpc/configs/86xx/mpc8610_hpcd_defconfig
@@ -98,8 +98,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig b/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig
index 1be38eb05783..20fde6374aad 100644
--- a/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig
+++ b/arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig
@@ -103,8 +103,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/86xx/sbc8641d_defconfig b/arch/powerpc/configs/86xx/sbc8641d_defconfig
index a63009457323..74f714d85936 100644
--- a/arch/powerpc/configs/86xx/sbc8641d_defconfig
+++ b/arch/powerpc/configs/86xx/sbc8641d_defconfig
@@ -102,8 +102,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 CONFIG_RELAY=y
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/adder875_defconfig b/arch/powerpc/configs/adder875_defconfig
index 9f89d5c9c0be..a670cee255b9 100644
--- a/arch/powerpc/configs/adder875_defconfig
+++ b/arch/powerpc/configs/adder875_defconfig
@@ -92,8 +92,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 # CONFIG_BLK_DEV_INITRD is not set
diff --git a/arch/powerpc/configs/amigaone_defconfig b/arch/powerpc/configs/amigaone_defconfig
index b63cc38df6b1..851287e78fc3 100644
--- a/arch/powerpc/configs/amigaone_defconfig
+++ b/arch/powerpc/configs/amigaone_defconfig
@@ -87,8 +87,7 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=15
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/c2k_defconfig b/arch/powerpc/configs/c2k_defconfig
index 4ab6074db3cf..b429a655b541 100644
--- a/arch/powerpc/configs/c2k_defconfig
+++ b/arch/powerpc/configs/c2k_defconfig
@@ -102,8 +102,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=17
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/cell_defconfig b/arch/powerpc/configs/cell_defconfig
index c6d2baa7aaeb..943371954317 100644
--- a/arch/powerpc/configs/cell_defconfig
+++ b/arch/powerpc/configs/cell_defconfig
@@ -83,8 +83,7 @@ CONFIG_CPUSETS=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUP_CPUACCT is not set
 # CONFIG_RESOURCE_COUNTERS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 CONFIG_PROC_PID_CPUSET=y
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
diff --git a/arch/powerpc/configs/celleb_defconfig b/arch/powerpc/configs/celleb_defconfig
index d2123779512a..6be6c09eba6d 100644
--- a/arch/powerpc/configs/celleb_defconfig
+++ b/arch/powerpc/configs/celleb_defconfig
@@ -78,8 +78,7 @@ CONFIG_LOG_BUF_SHIFT=15
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_USER_SCHED is not set
 # CONFIG_CGROUP_SCHED is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/chrp32_defconfig b/arch/powerpc/configs/chrp32_defconfig
index 5094a65a4493..2fdab660fce3 100644
--- a/arch/powerpc/configs/chrp32_defconfig
+++ b/arch/powerpc/configs/chrp32_defconfig
@@ -77,8 +77,7 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=15
 # CONFIG_CGROUPS is not set
 # CONFIG_GROUP_SCHED is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/ep8248e_defconfig b/arch/powerpc/configs/ep8248e_defconfig
index 81e904e9f392..6b708395a7c6 100644
--- a/arch/powerpc/configs/ep8248e_defconfig
+++ b/arch/powerpc/configs/ep8248e_defconfig
@@ -96,8 +96,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 # CONFIG_BLK_DEV_INITRD is not set
diff --git a/arch/powerpc/configs/ep88xc_defconfig b/arch/powerpc/configs/ep88xc_defconfig
index c5af46ef5f40..1cee889dd9ec 100644
--- a/arch/powerpc/configs/ep88xc_defconfig
+++ b/arch/powerpc/configs/ep88xc_defconfig
@@ -91,8 +91,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 # CONFIG_BLK_DEV_INITRD is not set
diff --git a/arch/powerpc/configs/g5_defconfig b/arch/powerpc/configs/g5_defconfig
index 826a65d3f002..57d3ffa3026a 100644
--- a/arch/powerpc/configs/g5_defconfig
+++ b/arch/powerpc/configs/g5_defconfig
@@ -82,8 +82,7 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=17
 # CONFIG_CGROUPS is not set
 # CONFIG_GROUP_SCHED is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/gamecube_defconfig b/arch/powerpc/configs/gamecube_defconfig
index 942e1193e9e4..1c2dbf07ac35 100644
--- a/arch/powerpc/configs/gamecube_defconfig
+++ b/arch/powerpc/configs/gamecube_defconfig
@@ -101,8 +101,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/holly_defconfig b/arch/powerpc/configs/holly_defconfig
index a211a79959ca..a60d61bee48d 100644
--- a/arch/powerpc/configs/holly_defconfig
+++ b/arch/powerpc/configs/holly_defconfig
@@ -73,7 +73,6 @@ CONFIG_SYSVIPC_SYSCTL=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
 # CONFIG_FAIR_GROUP_SCHED is not set
-CONFIG_SYSFS_DEPRECATED=y
 # CONFIG_RELAY is not set
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_INITRAMFS_SOURCE=""
diff --git a/arch/powerpc/configs/iseries_defconfig b/arch/powerpc/configs/iseries_defconfig
index 76982c51a4c7..151c8e14f3ab 100644
--- a/arch/powerpc/configs/iseries_defconfig
+++ b/arch/powerpc/configs/iseries_defconfig
@@ -81,8 +81,7 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=17
 # CONFIG_CGROUPS is not set
 # CONFIG_GROUP_SCHED is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/linkstation_defconfig b/arch/powerpc/configs/linkstation_defconfig
index 588a2add393f..8ecacf74d3e5 100644
--- a/arch/powerpc/configs/linkstation_defconfig
+++ b/arch/powerpc/configs/linkstation_defconfig
@@ -97,8 +97,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/maple_defconfig b/arch/powerpc/configs/maple_defconfig
index 8b244003b9e1..dc50eec58e78 100644
--- a/arch/powerpc/configs/maple_defconfig
+++ b/arch/powerpc/configs/maple_defconfig
@@ -78,8 +78,7 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=17
 # CONFIG_CGROUPS is not set
 # CONFIG_GROUP_SCHED is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/mgcoge_defconfig b/arch/powerpc/configs/mgcoge_defconfig
index 0cbd56fe2e1e..b36ebb7e843e 100644
--- a/arch/powerpc/configs/mgcoge_defconfig
+++ b/arch/powerpc/configs/mgcoge_defconfig
@@ -96,8 +96,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/mgsuvd_defconfig b/arch/powerpc/configs/mgsuvd_defconfig
index c1be26151021..0dd5015ea81d 100644
--- a/arch/powerpc/configs/mgsuvd_defconfig
+++ b/arch/powerpc/configs/mgsuvd_defconfig
@@ -90,8 +90,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=17
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/mpc512x_defconfig b/arch/powerpc/configs/mpc512x_defconfig
index a04727295d46..aa2654e6edeb 100644
--- a/arch/powerpc/configs/mpc512x_defconfig
+++ b/arch/powerpc/configs/mpc512x_defconfig
@@ -97,8 +97,7 @@ CONFIG_RCU_FANOUT=32
 CONFIG_LOG_BUF_SHIFT=16
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/mpc5200_defconfig b/arch/powerpc/configs/mpc5200_defconfig
index 7012ac0134f0..f875ec21c91c 100644
--- a/arch/powerpc/configs/mpc5200_defconfig
+++ b/arch/powerpc/configs/mpc5200_defconfig
@@ -97,8 +97,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/mpc7448_hpc2_defconfig b/arch/powerpc/configs/mpc7448_hpc2_defconfig
index 27c63ceeb45a..b1e88fe1d9fb 100644
--- a/arch/powerpc/configs/mpc7448_hpc2_defconfig
+++ b/arch/powerpc/configs/mpc7448_hpc2_defconfig
@@ -95,8 +95,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/pasemi_defconfig b/arch/powerpc/configs/pasemi_defconfig
index 20ba0cfff8ba..74a7216183e8 100644
--- a/arch/powerpc/configs/pasemi_defconfig
+++ b/arch/powerpc/configs/pasemi_defconfig
@@ -98,8 +98,7 @@ CONFIG_RCU_FANOUT=64
 CONFIG_LOG_BUF_SHIFT=17
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/pmac32_defconfig b/arch/powerpc/configs/pmac32_defconfig
index ea8870a34482..753bb7912e28 100644
--- a/arch/powerpc/configs/pmac32_defconfig
+++ b/arch/powerpc/configs/pmac32_defconfig
@@ -93,8 +93,7 @@ CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/ppc40x_defconfig b/arch/powerpc/configs/ppc40x_defconfig
index 35b60683cde5..afb4d1bb2ba9 100644
--- a/arch/powerpc/configs/ppc40x_defconfig
+++ b/arch/powerpc/configs/ppc40x_defconfig
@@ -99,8 +99,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/ppc44x_defconfig b/arch/powerpc/configs/ppc44x_defconfig
index 46f5c47e9f85..bd3d23fb4dd3 100644
--- a/arch/powerpc/configs/ppc44x_defconfig
+++ b/arch/powerpc/configs/ppc44x_defconfig
@@ -103,8 +103,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index dad617e2a88c..369f4e02c5dd 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -93,8 +93,7 @@ CONFIG_CPUSETS=y
 # CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUP_CPUACCT is not set
 # CONFIG_RESOURCE_COUNTERS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 CONFIG_PROC_PID_CPUSET=y
 CONFIG_RELAY=y
 CONFIG_NAMESPACES=y
diff --git a/arch/powerpc/configs/ppc64e_defconfig b/arch/powerpc/configs/ppc64e_defconfig
index 8195f1650cbf..403e82e2e83c 100644
--- a/arch/powerpc/configs/ppc64e_defconfig
+++ b/arch/powerpc/configs/ppc64e_defconfig
@@ -107,8 +107,7 @@ CONFIG_CPUSETS=y
 CONFIG_PROC_PID_CPUSET=y
 # CONFIG_CGROUP_CPUACCT is not set
 # CONFIG_RESOURCE_COUNTERS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 CONFIG_RELAY=y
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/pq2fads_defconfig b/arch/powerpc/configs/pq2fads_defconfig
index 68c175ea427a..12c8ee8dd12b 100644
--- a/arch/powerpc/configs/pq2fads_defconfig
+++ b/arch/powerpc/configs/pq2fads_defconfig
@@ -96,8 +96,7 @@ CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
diff --git a/arch/powerpc/configs/prpmc2800_defconfig b/arch/powerpc/configs/prpmc2800_defconfig
index 93f4505b5ac2..a18f597c6e5f 100644
--- a/arch/powerpc/configs/prpmc2800_defconfig
+++ b/arch/powerpc/configs/prpmc2800_defconfig
@@ -98,8 +98,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 CONFIG_NAMESPACES=y
 # CONFIG_UTS_NS is not set
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 16a14589bd40..16ae717d1958 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -92,8 +92,7 @@ CONFIG_CPUSETS=y
 # CONFIG_GROUP_SCHED is not set
 CONFIG_CGROUP_CPUACCT=y
 # CONFIG_RESOURCE_COUNTERS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 CONFIG_PROC_PID_CPUSET=y
 CONFIG_RELAY=y
 CONFIG_NAMESPACES=y
diff --git a/arch/powerpc/configs/storcenter_defconfig b/arch/powerpc/configs/storcenter_defconfig
index b1625801526e..01be0e207f40 100644
--- a/arch/powerpc/configs/storcenter_defconfig
+++ b/arch/powerpc/configs/storcenter_defconfig
@@ -95,8 +95,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_IKCONFIG is not set
 CONFIG_LOG_BUF_SHIFT=14
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 # CONFIG_RELAY is not set
 # CONFIG_NAMESPACES is not set
 # CONFIG_BLK_DEV_INITRD is not set
diff --git a/arch/powerpc/configs/wii_defconfig b/arch/powerpc/configs/wii_defconfig
index c386828c639a..ee054f8118be 100644
--- a/arch/powerpc/configs/wii_defconfig
+++ b/arch/powerpc/configs/wii_defconfig
@@ -102,8 +102,7 @@ CONFIG_FAIR_GROUP_SCHED=y
 CONFIG_USER_SCHED=y
 # CONFIG_CGROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
-CONFIG_SYSFS_DEPRECATED=y
-CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_SYSFS_DEPRECATED_V2 is not set
 CONFIG_RELAY=y
 # CONFIG_NAMESPACES is not set
 CONFIG_BLK_DEV_INITRD=y
-- 
cgit v1.2.3-55-g7522


From b636f1379eefe6eba931deaa386605bc7ac623e7 Mon Sep 17 00:00:00 2001
From: Matt Evans
Date: Mon, 7 Jun 2010 21:38:18 +0000
Subject: powerpc/kexec: Wait for online/possible CPUs only.

kexec_perpare_cpus_wait() iterates i through NR_CPUS to check
paca[i].kexec_state of each to make sure they have quiesced.
However now we have dynamic PACA allocation, paca[NR_CPUS] is not necessarily
valid and we overrun the array;  spurious "cpu is not possible, ignoring"
errors result.  This patch iterates for_each_online_cpu so stays
within the bounds of paca[] -- and every CPU is now 'possible'.

Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/machine_kexec_64.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index 26f9900f773c..ed31a29c4ff7 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -182,28 +182,12 @@ static void kexec_prepare_cpus_wait(int wait_state)
 
 	my_cpu = get_cpu();
 	/* Make sure each CPU has atleast made it to the state we need */
-	for (i=0; i < NR_CPUS; i++) {
+	for_each_online_cpu(i) {
 		if (i == my_cpu)
 			continue;
 
 		while (paca[i].kexec_state < wait_state) {
 			barrier();
-			if (!cpu_possible(i)) {
-				printk("kexec: cpu %d hw_cpu_id %d is not"
-						" possible, ignoring\n",
-						i, paca[i].hw_cpu_id);
-				break;
-			}
-			if (!cpu_online(i)) {
-				/* Fixme: this can be spinning in
-				 * pSeries_secondary_wait with a paca
-				 * waiting for it to go online.
-				 */
-				printk("kexec: cpu %d hw_cpu_id %d is not"
-						" online, ignoring\n",
-						i, paca[i].hw_cpu_id);
-				break;
-			}
 			if (i != notified) {
 				printk( "kexec: waiting for cpu %d (physical"
 						" %d) to enter %i state\n",
-- 
cgit v1.2.3-55-g7522


From f1ba9a5b2ab7d3f5a910d93371c4f22b636b7683 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Wed, 2 Jun 2010 22:24:26 +0000
Subject: powerpc: Unconditionally enabled irq stacks

Irq stacks provide an essential protection from stack overflows through
external interrupts, at the cost of two additionals stacks per CPU.

Enable them unconditionally to simplify the kernel build and prevent
people from accidentally disabling them.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/Kconfig.debug     |  7 -------
 arch/powerpc/include/asm/irq.h |  6 ------
 arch/powerpc/kernel/irq.c      | 12 ------------
 arch/powerpc/kernel/misc_32.S  |  2 --
 arch/powerpc/kernel/misc_64.S  |  2 --
 arch/powerpc/kernel/process.c  |  5 -----
 arch/powerpc/kernel/setup_32.c |  4 ----
 arch/powerpc/kernel/setup_64.c |  4 ----
 8 files changed, 42 deletions(-)

diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 53696da4518f..2d38a50e66ba 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -135,13 +135,6 @@ config DEBUGGER
 	depends on KGDB || XMON
 	default y
 
-config IRQSTACKS
-	bool "Use separate kernel stacks when processing interrupts"
-	help
-	  If you say Y here the kernel will use separate kernel stacks
-	  for handling hard and soft interrupts.  This can help avoid
-	  overflowing the process kernel stacks.
-
 config VIRQ_DEBUG
 	bool "Expose hardware/virtual IRQ mapping via debugfs"
 	depends on DEBUG_FS
diff --git a/arch/powerpc/include/asm/irq.h b/arch/powerpc/include/asm/irq.h
index e054baef1845..ecba37a91749 100644
--- a/arch/powerpc/include/asm/irq.h
+++ b/arch/powerpc/include/asm/irq.h
@@ -358,7 +358,6 @@ extern void exc_lvl_ctx_init(void);
 #define exc_lvl_ctx_init()
 #endif
 
-#ifdef CONFIG_IRQSTACKS
 /*
  * Per-cpu stacks for handling hard and soft interrupts.
  */
@@ -369,11 +368,6 @@ extern void irq_ctx_init(void);
 extern void call_do_softirq(struct thread_info *tp);
 extern int call_handle_irq(int irq, void *p1,
 			   struct thread_info *tp, void *func);
-#else
-#define irq_ctx_init()
-
-#endif /* CONFIG_IRQSTACKS */
-
 extern void do_IRQ(struct pt_regs *regs);
 
 #endif /* _ASM_IRQ_H */
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 30817d9b20cb..3333bbdd23ef 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -317,7 +317,6 @@ void fixup_irqs(const struct cpumask *map)
 }
 #endif
 
-#ifdef CONFIG_IRQSTACKS
 static inline void handle_one_irq(unsigned int irq)
 {
 	struct thread_info *curtp, *irqtp;
@@ -358,12 +357,6 @@ static inline void handle_one_irq(unsigned int irq)
 	if (irqtp->flags)
 		set_bits(irqtp->flags, &curtp->flags);
 }
-#else
-static inline void handle_one_irq(unsigned int irq)
-{
-	generic_handle_irq(irq);
-}
-#endif
 
 static inline void check_stack_overflow(void)
 {
@@ -455,7 +448,6 @@ void exc_lvl_ctx_init(void)
 }
 #endif
 
-#ifdef CONFIG_IRQSTACKS
 struct thread_info *softirq_ctx[NR_CPUS] __read_mostly;
 struct thread_info *hardirq_ctx[NR_CPUS] __read_mostly;
 
@@ -492,10 +484,6 @@ static inline void do_softirq_onstack(void)
 	irqtp->task = NULL;
 }
 
-#else
-#define do_softirq_onstack()	__do_softirq()
-#endif /* CONFIG_IRQSTACKS */
-
 void do_softirq(void)
 {
 	unsigned long flags;
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index dc66d52dcff5..6bbd7a604d24 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -33,7 +33,6 @@
 
 	.text
 
-#ifdef CONFIG_IRQSTACKS
 _GLOBAL(call_do_softirq)
 	mflr	r0
 	stw	r0,4(r1)
@@ -56,7 +55,6 @@ _GLOBAL(call_handle_irq)
 	lwz	r0,4(r1)
 	mtlr	r0
 	blr
-#endif /* CONFIG_IRQSTACKS */
 
 /*
  * This returns the high 64 bits of the product of two 64-bit numbers.
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index a2b18dffa03e..e5144906a56d 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -28,7 +28,6 @@
 
 	.text
 
-#ifdef CONFIG_IRQSTACKS
 _GLOBAL(call_do_softirq)
 	mflr	r0
 	std	r0,16(r1)
@@ -52,7 +51,6 @@ _GLOBAL(call_handle_irq)
 	ld	r0,16(r1)
 	mtlr	r0
 	blr
-#endif /* CONFIG_IRQSTACKS */
 
 	.section	".toc","aw"
 PPC64_CACHES:
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 9d255b4f0a0e..773424df828a 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1005,7 +1005,6 @@ out:
 	return error;
 }
 
-#ifdef CONFIG_IRQSTACKS
 static inline int valid_irq_stack(unsigned long sp, struct task_struct *p,
 				  unsigned long nbytes)
 {
@@ -1030,10 +1029,6 @@ static inline int valid_irq_stack(unsigned long sp, struct task_struct *p,
 	return 0;
 }
 
-#else
-#define valid_irq_stack(sp, p, nb)	0
-#endif /* CONFIG_IRQSTACKS */
-
 int validate_sp(unsigned long sp, struct task_struct *p,
 		       unsigned long nbytes)
 {
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 8f58986c2ad9..7d84b210f168 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -241,7 +241,6 @@ int __init ppc_init(void)
 
 arch_initcall(ppc_init);
 
-#ifdef CONFIG_IRQSTACKS
 static void __init irqstack_early_init(void)
 {
 	unsigned int i;
@@ -255,9 +254,6 @@ static void __init irqstack_early_init(void)
 			__va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
 	}
 }
-#else
-#define irqstack_early_init()
-#endif
 
 #if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
 static void __init exc_lvl_early_init(void)
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index f3fb5a79de52..643dcac40fcb 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -432,7 +432,6 @@ static u64 slb0_limit(void)
 	return 1UL << SID_SHIFT;
 }
 
-#ifdef CONFIG_IRQSTACKS
 static void __init irqstack_early_init(void)
 {
 	u64 limit = slb0_limit();
@@ -451,9 +450,6 @@ static void __init irqstack_early_init(void)
 					    THREAD_SIZE, limit));
 	}
 }
-#else
-#define irqstack_early_init()
-#endif
 
 #ifdef CONFIG_PPC_BOOK3E
 static void __init exc_lvl_early_init(void)
-- 
cgit v1.2.3-55-g7522


From bd2b64a12bf55bec0d1b949e3dca3f8863409646 Mon Sep 17 00:00:00 2001
From: Milton Miller
Date: Sat, 12 Jun 2010 03:48:47 +0000
Subject: powerpc: rtas_flash needs to use rtas_data_buf

When trying to flash a machine via the update_flash command, Anton received the
following error:

    Restarting system.
    FLASH: kernel bug...flash list header addr above 4GB

The code in question has a comment that the flash list should be in
the kernel data and therefore under 4GB:

        /* NOTE: the "first" block list is a global var with no data
         * blocks in the kernel data segment.  We do this because
         * we want to ensure this block_list addr is under 4GB.
         */

Unfortunately the Kconfig option is marked tristate which means the variable
may not be in the kernel data and could be above 4GB.

Instead of relying on the data segment being below 4GB, use the static
data buffer allocated by the kernel for use by rtas.  Since we don't
use the header struct directly anymore, convert it to a simple pointer.

Reported-By: Anton Blanchard <anton@samba.org>
Signed-Off-By: Milton Miller <miltonm@bga.com
Tested-By: Anton Blanchard <anton@samba.org>

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/rtas_flash.c | 39 +++++++++++++++++++++------------------
 1 file changed, 21 insertions(+), 18 deletions(-)

diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index bfc2abafac44..67a84d8f118d 100644
--- a/arch/powerpc/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -94,12 +94,8 @@ struct flash_block_list {
 	struct flash_block_list *next;
 	struct flash_block blocks[FLASH_BLOCKS_PER_NODE];
 };
-struct flash_block_list_header { /* just the header of flash_block_list */
-	unsigned long num_blocks;
-	struct flash_block_list *next;
-};
 
-static struct flash_block_list_header rtas_firmware_flash_list = {0, NULL};
+static struct flash_block_list *rtas_firmware_flash_list;
 
 /* Use slab cache to guarantee 4k alignment */
 static struct kmem_cache *flash_block_cache = NULL;
@@ -108,13 +104,14 @@ static struct kmem_cache *flash_block_cache = NULL;
 
 /* Local copy of the flash block list.
  * We only allow one open of the flash proc file and create this
- * list as we go.  This list will be put in the
- * rtas_firmware_flash_list var once it is fully read.
+ * list as we go.  The rtas_firmware_flash_list varable will be
+ * set once the data is fully read.
  *
  * For convenience as we build the list we use virtual addrs,
  * we do not fill in the version number, and the length field
  * is treated as the number of entries currently in the block
- * (i.e. not a byte count).  This is all fixed on release.
+ * (i.e. not a byte count).  This is all fixed when calling 
+ * the flash routine.
  */
 
 /* Status int must be first member of struct */
@@ -201,16 +198,16 @@ static int rtas_flash_release(struct inode *inode, struct file *file)
 	if (uf->flist) {    
 		/* File was opened in write mode for a new flash attempt */
 		/* Clear saved list */
-		if (rtas_firmware_flash_list.next) {
-			free_flash_list(rtas_firmware_flash_list.next);
-			rtas_firmware_flash_list.next = NULL;
+		if (rtas_firmware_flash_list) {
+			free_flash_list(rtas_firmware_flash_list);
+			rtas_firmware_flash_list = NULL;
 		}
 
 		if (uf->status != FLASH_AUTH)  
 			uf->status = flash_list_valid(uf->flist);
 
 		if (uf->status == FLASH_IMG_READY) 
-			rtas_firmware_flash_list.next = uf->flist;
+			rtas_firmware_flash_list = uf->flist;
 		else
 			free_flash_list(uf->flist);
 
@@ -593,7 +590,7 @@ static void rtas_flash_firmware(int reboot_type)
 	unsigned long rtas_block_list;
 	int i, status, update_token;
 
-	if (rtas_firmware_flash_list.next == NULL)
+	if (rtas_firmware_flash_list == NULL)
 		return;		/* nothing to do */
 
 	if (reboot_type != SYS_RESTART) {
@@ -610,20 +607,25 @@ static void rtas_flash_firmware(int reboot_type)
 		return;
 	}
 
-	/* NOTE: the "first" block list is a global var with no data
-	 * blocks in the kernel data segment.  We do this because
-	 * we want to ensure this block_list addr is under 4GB.
+	/*
+	 * NOTE: the "first" block must be under 4GB, so we create
+	 * an entry with no data blocks in the reserved buffer in
+	 * the kernel data segment.
 	 */
-	rtas_firmware_flash_list.num_blocks = 0;
-	flist = (struct flash_block_list *)&rtas_firmware_flash_list;
+	spin_lock(&rtas_data_buf_lock);
+	flist = (struct flash_block_list *)&rtas_data_buf[0];
+	flist->num_blocks = 0;
+	flist->next = rtas_firmware_flash_list;
 	rtas_block_list = virt_to_abs(flist);
 	if (rtas_block_list >= 4UL*1024*1024*1024) {
 		printk(KERN_ALERT "FLASH: kernel bug...flash list header addr above 4GB\n");
+		spin_unlock(&rtas_data_buf_lock);
 		return;
 	}
 
 	printk(KERN_ALERT "FLASH: preparing saved firmware image for flash\n");
 	/* Update the block_list in place. */
+	rtas_firmware_flash_list = NULL; /* too hard to backout on error */
 	image_size = 0;
 	for (f = flist; f; f = next) {
 		/* Translate data addrs to absolute */
@@ -664,6 +666,7 @@ static void rtas_flash_firmware(int reboot_type)
 		printk(KERN_ALERT "FLASH: unknown flash return code %d\n", status);
 		break;
 	}
+	spin_unlock(&rtas_data_buf_lock);
 }
 
 static void remove_flash_pde(struct proc_dir_entry *dp)
-- 
cgit v1.2.3-55-g7522


From 7c9d93604b25c25dc059e2b12ad5e89ca3ed4376 Mon Sep 17 00:00:00 2001
From: Alastair Bridgewater
Date: Sat, 12 Jun 2010 15:36:48 +0000
Subject: powerpc: Fix mpic_resume on early G5 macs

mpic_resume() on G5 macs blindly dereferences mpic->fixups, but
it may legitimately be NULL (as on PowerMac7,2).  Add an explicit
check.

This fixes suspend-to-disk with one processor (maxcpus=1) for me.

Signed-off-by: Alastair Bridgewater <alastair.bridgewater@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/sysdev/mpic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 2102487612a4..20b73c025a45 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1666,7 +1666,7 @@ static int mpic_resume(struct sys_device *dev)
 			       mpic->save_data[i].dest);
 
 #ifdef CONFIG_MPIC_U3_HT_IRQS
-	{
+	if (mpic->fixups) {
 		struct mpic_irq_fixup *fixup = &mpic->fixups[i];
 
 		if (fixup->base) {
-- 
cgit v1.2.3-55-g7522


From 3bbf9b9b0fe74b5149d922a5d893be6954b61198 Mon Sep 17 00:00:00 2001
From: Grant Likely
Date: Tue, 8 Jun 2010 07:48:29 -0600
Subject: maintainers: Add git trees for SPI and device tree

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---
 MAINTAINERS | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 6d119c98b89b..2a9145016881 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4212,6 +4212,7 @@ OPEN FIRMWARE AND FLATTENED DEVICE TREE
 M:	Grant Likely <grant.likely@secretlab.ca>
 L:	devicetree-discuss@lists.ozlabs.org
 W:	http://fdt.secretlab.ca
+T:	git git://git.secretlab.ca/git/linux-2.6.git
 S:	Maintained
 F:	drivers/of
 F:	include/linux/of*.h
@@ -5384,6 +5385,7 @@ M:	David Brownell <dbrownell@users.sourceforge.net>
 M:	Grant Likely <grant.likely@secretlab.ca>
 L:	spi-devel-general@lists.sourceforge.net
 Q:	http://patchwork.kernel.org/project/spi-devel-general/list/
+T:	git git://git.secretlab.ca/git/linux-2.6.git
 S:	Maintained
 F:	Documentation/spi/
 F:	drivers/spi/
-- 
cgit v1.2.3-55-g7522


From a2c9a603c72be0d9a0780f196bff53ab0d517347 Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov
Date: Fri, 11 Jun 2010 01:52:34 +0000
Subject: powerpc/5200: add lite5200 onboard I2C eeprom and flash

Add dts descriptions for onboard 256 byte I2C eeprom (pcf8582C-2)
and 16MB NOR flash (am29lv652d).

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
[grant.likely@secretlab.ca: added lite5200b eeprom and declared lite5200 gpios]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---
 arch/powerpc/boot/dts/lite5200.dts  | 24 ++++++++++++++++++++++++
 arch/powerpc/boot/dts/lite5200b.dts |  5 +++++
 2 files changed, 29 insertions(+)

diff --git a/arch/powerpc/boot/dts/lite5200.dts b/arch/powerpc/boot/dts/lite5200.dts
index 82ff2b13bc37..d1502ef85edb 100644
--- a/arch/powerpc/boot/dts/lite5200.dts
+++ b/arch/powerpc/boot/dts/lite5200.dts
@@ -134,12 +134,16 @@
 			compatible = "fsl,mpc5200-gpio";
 			reg = <0xb00 0x40>;
 			interrupts = <1 7 0>;
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		gpio@c00 {
 			compatible = "fsl,mpc5200-gpio-wkup";
 			reg = <0xc00 0x40>;
 			interrupts = <1 8 0 0 3 0>;
+			gpio-controller;
+			#gpio-cells = <2>;
 		};
 
 		spi@f00 {
@@ -255,7 +259,13 @@
 			compatible = "fsl,mpc5200-i2c","fsl-i2c";
 			reg = <0x3d40 0x40>;
 			interrupts = <2 16 0>;
+
+			eeprom@50 {
+				compatible = "atmel,24c02";
+				reg = <0x50>;
+			};
 		};
+
 		sram@8000 {
 			compatible = "fsl,mpc5200-sram";
 			reg = <0x8000 0x4000>;
@@ -281,4 +291,18 @@
 			  0x02000000 0 0xa0000000 0xa0000000 0 0x10000000
 			  0x01000000 0 0x00000000 0xb0000000 0 0x01000000>;
 	};
+
+	localbus {
+		compatible = "fsl,mpc5200-lpb","simple-bus";
+		#address-cells = <2>;
+		#size-cells = <1>;
+
+		ranges = <0 0 0xff000000 0x01000000>;
+
+		flash@0,0 {
+			compatible = "amd,am29lv652d", "cfi-flash";
+			reg = <0 0 0x01000000>;
+			bank-width = <1>;
+		};
+	};
 };
diff --git a/arch/powerpc/boot/dts/lite5200b.dts b/arch/powerpc/boot/dts/lite5200b.dts
index e45a63be3a86..59702ace900f 100644
--- a/arch/powerpc/boot/dts/lite5200b.dts
+++ b/arch/powerpc/boot/dts/lite5200b.dts
@@ -259,6 +259,11 @@
 			compatible = "fsl,mpc5200b-i2c","fsl,mpc5200-i2c","fsl-i2c";
 			reg = <0x3d40 0x40>;
 			interrupts = <2 16 0>;
+
+			eeprom@50 {
+				compatible = "atmel,24c02";
+				reg = <0x50>;
+			};
 		};
 
 		sram@8000 {
-- 
cgit v1.2.3-55-g7522


From 79600aadcf35dd31ec284928cf45296fea98db61 Mon Sep 17 00:00:00 2001
From: Stephen M. Cameron
Date: Tue, 15 Jun 2010 08:12:34 +0200
Subject: cciss: set SCSI max cmd len to 16, as default is wrong

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Cc: Mike Miller <mikem@beardog.cce.hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 drivers/block/cciss_scsi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/block/cciss_scsi.c b/drivers/block/cciss_scsi.c
index 3381505c8a6c..72dae92f3cab 100644
--- a/drivers/block/cciss_scsi.c
+++ b/drivers/block/cciss_scsi.c
@@ -861,6 +861,7 @@ cciss_scsi_detect(int ctlr)
 	sh->n_io_port = 0;	// I don't think we use these two...
 	sh->this_id = SELF_SCSI_ID;  
 	sh->sg_tablesize = hba[ctlr]->maxsgentries;
+	sh->max_cmd_len = MAX_COMMAND_SIZE;
 
 	((struct cciss_scsi_adapter_data_t *) 
 		hba[ctlr]->scsi_ctlr)->scsi_host = sh;
-- 
cgit v1.2.3-55-g7522


From 256a8042830e6ac1c3dd2e912e3c45769dd709cc Mon Sep 17 00:00:00 2001
From: Janusz Krzysztofik
Date: Mon, 17 May 2010 03:20:13 +0200
Subject: OMAPFB: LCDC: change update_mode to DISABLED when going suspend

I was observing the following error messages on my OMAP1 based Amstrad Delta
board when first changing from text to graphics mode or vice versa after the
LCD display had been blanked:
	omapfb omapfb: timeout waiting for FRAME DONE
with a followup error message while unblanking it back:
	omapfb omapfb: resetting (status 0xffffffb2,reset count 1)
As a visible result, image pixels happened to be shifted by a few bits,
giving wrong colors.

Examining the code, I found that this problem occures when an OMAP1 internal
LCD controller is disabled from omap_lcdc_suspend() and then a subsequent
omap_lcdc_setup_plane() calls disable_controller() again. This potentially
error provoking behaviour is triggered by the lcdc.update_mode flag being kept
at OMAP_AUTO_UPDATE, regardless of the controller and panel being suspended.

This patch tries to correct the problem by replacing both omap_lcdc_suspend()
and omap_lcdc_resume() function bodies with single calls to
omap_lcdc_set_update_mode() with a respective OMAP_UPDATE_DISABLE or
OMAP_AUTO_UPDATE argument. As a result, exactly the same lower level
operations are performed, with addition of changing the lcdc.update_mode flag
to a value better suited for the controller state. This prevents any further
calls to disable_controller() from omap_lcdc_setup_plane() while the display
is suspended.

Created against linux-2.6.34-rc7.
Tested on Amstrad Delta.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
---
 drivers/video/omap/lcdc.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/video/omap/lcdc.c b/drivers/video/omap/lcdc.c
index 43ab7d8b66b2..7767338f8b14 100644
--- a/drivers/video/omap/lcdc.c
+++ b/drivers/video/omap/lcdc.c
@@ -572,22 +572,12 @@ static enum omapfb_update_mode omap_lcdc_get_update_mode(void)
 /* PM code called only in internal controller mode */
 static void omap_lcdc_suspend(void)
 {
-	if (lcdc.update_mode == OMAPFB_AUTO_UPDATE) {
-		disable_controller();
-		omap_stop_lcd_dma();
-	}
+	omap_lcdc_set_update_mode(OMAPFB_UPDATE_DISABLED);
 }
 
 static void omap_lcdc_resume(void)
 {
-	if (lcdc.update_mode == OMAPFB_AUTO_UPDATE) {
-		setup_regs();
-		load_palette();
-		setup_lcd_dma();
-		set_load_mode(OMAP_LCDC_LOAD_FRAME);
-		enable_irqs(OMAP_LCDC_IRQ_DONE);
-		enable_controller();
-	}
+	omap_lcdc_set_update_mode(OMAPFB_AUTO_UPDATE);
 }
 
 static void omap_lcdc_get_caps(int plane, struct omapfb_caps *caps)
-- 
cgit v1.2.3-55-g7522


From bc092a303a1b980c67324920471e23354b0721cd Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen
Date: Mon, 7 Jun 2010 10:46:10 +0300
Subject: OMAP: OMAPFB: fix rfbi.c compile error

The code in rfbi.c tried to get the omapdss platform_device via a static
member defined in dispc.c, leading to a compile error. The same
platform_device is available through rfbi-struct.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
---
 drivers/video/omap/rfbi.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/video/omap/rfbi.c b/drivers/video/omap/rfbi.c
index 1162603c72e5..eada9f12efc7 100644
--- a/drivers/video/omap/rfbi.c
+++ b/drivers/video/omap/rfbi.c
@@ -26,6 +26,7 @@
 #include <linux/interrupt.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/platform_device.h>
 
 #include "omapfb.h"
 #include "dispc.h"
@@ -83,13 +84,13 @@ static inline u32 rfbi_read_reg(int idx)
 
 static int rfbi_get_clocks(void)
 {
-	rfbi.dss_ick = clk_get(&dispc.fbdev->dssdev->dev, "ick");
+	rfbi.dss_ick = clk_get(&rfbi.fbdev->dssdev->dev, "ick");
 	if (IS_ERR(rfbi.dss_ick)) {
 		dev_err(rfbi.fbdev->dev, "can't get ick\n");
 		return PTR_ERR(rfbi.dss_ick);
 	}
 
-	rfbi.dss1_fck = clk_get(&dispc.fbdev->dssdev->dev, "dss1_fck");
+	rfbi.dss1_fck = clk_get(&rfbi.fbdev->dssdev->dev, "dss1_fck");
 	if (IS_ERR(rfbi.dss1_fck)) {
 		dev_err(rfbi.fbdev->dev, "can't get dss1_fck\n");
 		clk_put(rfbi.dss_ick);
-- 
cgit v1.2.3-55-g7522


From 25cbff1660d3f4c059a178a1e5b851be6d70c5e8 Mon Sep 17 00:00:00 2001
From: Sheng Yang
Date: Sat, 12 Jun 2010 19:21:42 +0800
Subject: intel-iommu: Fix reference by physical address in
 intel_iommu_attach_device()

Commit a99c47a2 "intel-iommu: errors with smaller iommu widths" replace the
dmar_domain->pgd with the first entry of page table when iommu's supported
width is smaller than dmar_domain's. But it use physical address directly
for new dmar_domain->pgd...

This result in KVM oops with VT-d on some machines.

Reported-by: Allen Kay <allen.m.kay@intel.com>
Cc: Tom Lyon <pugs@cisco.com>
Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---
 drivers/pci/intel-iommu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 796828fce34c..3bd30557ce2e 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -3603,7 +3603,8 @@ static int intel_iommu_attach_device(struct iommu_domain *domain,
 		pte = dmar_domain->pgd;
 		if (dma_pte_present(pte)) {
 			free_pgtable_page(dmar_domain->pgd);
-			dmar_domain->pgd = (struct dma_pte *)dma_pte_addr(pte);
+			dmar_domain->pgd = (struct dma_pte *)
+				phys_to_virt(dma_pte_addr(pte));
 		}
 		dmar_domain->agaw--;
 	}
-- 
cgit v1.2.3-55-g7522


From 00dfff77e7184140dc45724c7232e99302f6bf97 Mon Sep 17 00:00:00 2001
From: Jiri Slaby
Date: Mon, 14 Jun 2010 17:17:32 +0200
Subject: intel-iommu: Fix double lock in get_domain_for_dev()

stanse found the following double lock.

In get_domain_for_dev:
  spin_lock_irqsave(&device_domain_lock, flags);
  domain_exit(domain);
    domain_remove_dev_info(domain);
      spin_lock_irqsave(&device_domain_lock, flags);
      spin_unlock_irqrestore(&device_domain_lock, flags);
  spin_unlock_irqrestore(&device_domain_lock, flags);

This happens when the domain is created by another CPU at the same time 
as this function is creating one, and the other CPU wins the race to 
attach it to the device in question, so we have to destroy our own 
newly-created one.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---
 drivers/pci/intel-iommu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index 3bd30557ce2e..bf8fd913d064 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -1874,14 +1874,15 @@ static struct dmar_domain *get_domain_for_dev(struct pci_dev *pdev, int gaw)
 			}
 		}
 		if (found) {
+			spin_unlock_irqrestore(&device_domain_lock, flags);
 			free_devinfo_mem(info);
 			domain_exit(domain);
 			domain = found;
 		} else {
 			list_add(&info->link, &domain->devices);
 			list_add(&info->global, &device_domain_list);
+			spin_unlock_irqrestore(&device_domain_lock, flags);
 		}
-		spin_unlock_irqrestore(&device_domain_lock, flags);
 	}
 
 found_domain:
-- 
cgit v1.2.3-55-g7522


From 2d9e667efdfb4e986074d98e7d9a424003c7c43b Mon Sep 17 00:00:00 2001
From: David Woodhouse
Date: Tue, 15 Jun 2010 10:57:57 +0100
Subject: intel-iommu: Force-disable IOMMU for iGFX on broken Cantiga
 revisions.

Certain revisions of this chipset appear to be broken. There is a shadow
GTT which mirrors the real GTT but contains pre-translated physical
addresses, for performance reasons. When a GTT update happens, the
translations are done once and the resulting physical addresses written
back to the shadow GTT.

Except sometimes, the physical address is actually written back to the
_real_ GTT, not the shadow GTT. Thus we start to see faults when that
physical address is fed through translation again.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---
 drivers/pci/intel-iommu.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index bf8fd913d064..c9171be74564 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -340,7 +340,7 @@ int dmar_disabled = 0;
 int dmar_disabled = 1;
 #endif /*CONFIG_DMAR_DEFAULT_ON*/
 
-static int __initdata dmar_map_gfx = 1;
+static int dmar_map_gfx = 1;
 static int dmar_forcedac;
 static int intel_iommu_strict;
 
@@ -3721,6 +3721,12 @@ static void __devinit quirk_iommu_rwbf(struct pci_dev *dev)
 	 */
 	printk(KERN_INFO "DMAR: Forcing write-buffer flush capability\n");
 	rwbf_quirk = 1;
+
+	/* https://bugzilla.redhat.com/show_bug.cgi?id=538163 */
+	if (dev->revision == 0x07) {
+		printk(KERN_INFO "DMAR: Disabling IOMMU for graphics on this chipset\n");
+		dmar_map_gfx = 0;
+	}
 }
 
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2a40, quirk_iommu_rwbf);
-- 
cgit v1.2.3-55-g7522


From d5eda75f3a6a08f5a3644764a88d288e62e7823d Mon Sep 17 00:00:00 2001
From: Andy Whitcroft
Date: Mon, 14 Jun 2010 10:41:10 +0100
Subject: kbuild: fix LOCALVERSION handling to match description

In the commit below the version string handling was modified, adding
a '+' where no other version information was supplied:

    commit 85a256d8e0116c8f5ad276730830f5d4d473344d
    Author: David Rientjes <rientjes@google.com>
    Date:   Wed Jan 13 13:01:05 2010 -0800

From the commit the intent was as below:

     - when CONFIG_LOCALVERSION_AUTO is disabled, a `+' is appended if the
       repository has been revised beyond a tagged commit and LOCALVERSION=
       was not passed to "make".

However if the user supplies an empty LOCALVERSION on the command line
the plus suffix is still added.  This form is useful in the case where
the build environment knows that the version as specified is correct and
complete but does not correspond to a specific tag.

This patch changes the implementation to match the documentation
such that specifying LOCALVERSION= on the build line is sufficient
to suppress any suffix.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 993d1f335925..324130c682dd 100644
--- a/Makefile
+++ b/Makefile
@@ -944,7 +944,7 @@ ifdef CONFIG_LOCALVERSION_AUTO
 	localver-extra = $(scm-identifier)
 else
 	ifneq ($(scm-identifier),)
-		ifeq ($(LOCALVERSION),)
+		ifeq ("$(origin LOCALVERSION)", "undefined")
 			localver-extra = +
 		endif
 	endif
-- 
cgit v1.2.3-55-g7522


From 5b61ea499727f22ebdaaeedb9801b12ed6eb59c7 Mon Sep 17 00:00:00 2001
From: Sudhakar Rajashekhara
Date: Fri, 11 Jun 2010 19:24:51 +0530
Subject: ASoC: DaVinci: Fix McASP hardware FIFO configuration

On DA830/OMAP-L137 and DA850/OMAP-L138 SoCs, the McASP peripheral
has FIFO support. This FIFO provides additional data buffering. It
also provides tolerance to variation in host/DMA controller response
times. More details of the FIFO operation can be found at

http://focus.ti.com/general/docs/lit/getliterature.tsp?literatureNumber=sprufm1&fileType=pdf

Existing sequence of steps for audio playback/capture are:
a. DMA configuration
b. McASP configuration (configures and enables FIFO)
c. Start DMA
d. Start McASP (enables FIFO)

During McASP configuration, while FIFO was being configured, FIFO
was being enabled in davinci_hw_common_param() function of
sound/soc/davinci/davinci-mcasp.c file. This generated a transmit
DMA event, which gets serviced when DMA is started.

https://patchwork.kernel.org/patch/84611/ patch clears the DMA
events before starting DMA, which is the right thing to do. But
this resulted in a state where DMA was waiting for an event from
McASP (after step c above), but the event which was already there,
has got cleared (because of step b above).

The fix is not to enable the FIFO during McASP configuration as
FIFO was being enabled as part of McASP start.

Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/davinci/davinci-mcasp.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 79f0f4ad242c..d3955096d872 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -612,7 +612,6 @@ static void davinci_hw_common_param(struct davinci_audio_dev *dev, int stream)
 								NUMDMA_MASK);
 		mcasp_mod_bits(dev->base + DAVINCI_MCASP_WFIFOCTL,
 				((dev->txnumevt * tx_ser) << 8), NUMEVT_MASK);
-		mcasp_set_bits(dev->base + DAVINCI_MCASP_WFIFOCTL, FIFO_ENABLE);
 	}
 
 	if (dev->rxnumevt && stream == SNDRV_PCM_STREAM_CAPTURE) {
@@ -623,7 +622,6 @@ static void davinci_hw_common_param(struct davinci_audio_dev *dev, int stream)
 								NUMDMA_MASK);
 		mcasp_mod_bits(dev->base + DAVINCI_MCASP_RFIFOCTL,
 				((dev->rxnumevt * rx_ser) << 8), NUMEVT_MASK);
-		mcasp_set_bits(dev->base + DAVINCI_MCASP_RFIFOCTL, FIFO_ENABLE);
 	}
 }
 
-- 
cgit v1.2.3-55-g7522


From a69b03e941abae00380fc6bc1877fb797a1b31e6 Mon Sep 17 00:00:00 2001
From: John W. Linville
Date: Mon, 14 Jun 2010 14:30:25 -0400
Subject: iwlwifi: cancel scan watchdog in iwl_bg_abort_scan

Avoids this:

WARNING: at net/mac80211/scan.c:312 ieee80211_scan_completed+0x5f/0x1f1
[mac80211]()
Hardware name: Latitude E5400
Modules linked in: aes_x86_64 aes_generic fuse ipt_MASQUERADE iptable_nat
nf_nat rfcomm sco bridge stp llc bnep l2cap sunrpc cpufreq_ondemand
acpi_cpufreq freq_table xt_physdev ip6t_REJECT nf_conntrack_ipv6
ip6table_filter ip6_tables ipv6 kvm_intel kvm uinput arc4 ecb
snd_hda_codec_intelhdmi snd_hda_codec_idt snd_hda_intel iwlagn snd_hda_codec
snd_hwdep snd_seq snd_seq_device iwlcore snd_pcm dell_wmi sdhci_pci sdhci
iTCO_wdt tg3 dell_laptop mmc_core i2c_i801 wmi mac80211 snd_timer
iTCO_vendor_support btusb joydev dcdbas cfg80211 bluetooth snd soundcore
microcode rfkill snd_page_alloc firewire_ohci firewire_core crc_itu_t
yenta_socket rsrc_nonstatic i915 drm_kms_helper drm i2c_algo_bit i2c_core video
output [last unloaded: scsi_wait_scan]
Pid: 979, comm: iwlagn Tainted: G        W  2.6.33.3-85.fc13.x86_64 #1
Call Trace:
[<ffffffff8104b558>] warn_slowpath_common+0x77/0x8f
[<ffffffff8104b57f>] warn_slowpath_null+0xf/0x11
[<ffffffffa01bb7d9>] ieee80211_scan_completed+0x5f/0x1f1 [mac80211]
[<ffffffffa02a23f0>] iwl_bg_scan_completed+0xbb/0x17a [iwlcore]
[<ffffffff81060d3d>] worker_thread+0x1a4/0x232
[<ffffffffa02a2335>] ? iwl_bg_scan_completed+0x0/0x17a [iwlcore]
[<ffffffff81064817>] ? autoremove_wake_function+0x0/0x34
[<ffffffff81060b99>] ? worker_thread+0x0/0x232
[<ffffffff810643c7>] kthread+0x7a/0x82
[<ffffffff8100a924>] kernel_thread_helper+0x4/0x10
[<ffffffff8106434d>] ? kthread+0x0/0x82
[<ffffffff8100a920>] ? kernel_thread_helper+0x0/0x10

Reported here:

	https://bugzilla.redhat.com/show_bug.cgi?id=590436

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reported-by: Mihai Harpau <mishu@piatafinanciara.ro>
Cc: stable@kernel.org
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-scan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 5d3f51ff2f0d..386c5f96eff8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -491,6 +491,7 @@ void iwl_bg_abort_scan(struct work_struct *work)
 
 	mutex_lock(&priv->mutex);
 
+	cancel_delayed_work_sync(&priv->scan_check);
 	set_bit(STATUS_SCAN_ABORTING, &priv->status);
 	iwl_send_scan_abort(priv);
 
-- 
cgit v1.2.3-55-g7522


From 87a9d57da41e70dc85adf23e158308527c051b3a Mon Sep 17 00:00:00 2001
From: Matt Turner
Date: Sun, 6 Jun 2010 20:06:40 -0400
Subject: alpha: fix __arch_hweight32 typo

Typo in 1527bc8b928dd1399c3d3467dd47d9ede210978a renamed hweight32 to
__arch_weight32.

Signed-off-by: Matt Turner <mattst88@gmail.com>
---
 arch/alpha/include/asm/bitops.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h
index 1dce24bc455a..adfab8a21dfe 100644
--- a/arch/alpha/include/asm/bitops.h
+++ b/arch/alpha/include/asm/bitops.h
@@ -410,7 +410,7 @@ static inline unsigned long __arch_hweight64(unsigned long w)
 	return __kernel_ctpop(w);
 }
 
-static inline unsigned int __arch_weight32(unsigned int w)
+static inline unsigned int __arch_hweight32(unsigned int w)
 {
 	return __arch_hweight64(w);
 }
-- 
cgit v1.2.3-55-g7522


From 5efa16ff77cb785647a480dcdc70a6b4fc787996 Mon Sep 17 00:00:00 2001
From: Matt Turner
Date: Tue, 15 Jun 2010 13:19:36 -0400
Subject: alpha: fix pci_mmap_resource API breakage

Caused by 2c3c8bea608866d8bd9dcf92657d57fdcac011c5 which was clearly not
even compile tested.

Signed-off-by: Matt Turner <mattst88@gmail.com>
---
 arch/alpha/kernel/pci-sysfs.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c
index a5fffc882c72..738fc824e2ea 100644
--- a/arch/alpha/kernel/pci-sysfs.c
+++ b/arch/alpha/kernel/pci-sysfs.c
@@ -53,7 +53,6 @@ static int __pci_mmap_fits(struct pci_dev *pdev, int num,
 
 /**
  * pci_mmap_resource - map a PCI resource into user memory space
- * @filp: open sysfs file
  * @kobj: kobject for mapping
  * @attr: struct bin_attribute for the file being mapped
  * @vma: struct vm_area_struct passed into the mmap
@@ -61,7 +60,7 @@ static int __pci_mmap_fits(struct pci_dev *pdev, int num,
  *
  * Use the bus mapping routines to map a PCI resource into userspace.
  */
-static int pci_mmap_resource(struct file *filp, struct kobject *kobj,
+static int pci_mmap_resource(struct kobject *kobj,
 			     struct bin_attribute *attr,
 			     struct vm_area_struct *vma, int sparse)
 {
-- 
cgit v1.2.3-55-g7522


From 932e0c201d28a728e25d3b641aa95bd28ceb08b4 Mon Sep 17 00:00:00 2001
From: Morten H. Larsen
Date: Tue, 15 Jun 2010 13:22:11 -0400
Subject: alpha: Detect Super IO chip, no IDE on Avanti, enable EPP19

This patch probes for the Super IO chip and reserves the IO range when
found. It avoids enabling the IDE interface on the Avanti family, since
none has IDE. It enables the Enhanced Parallel Port v1.9 feature.

Signed-off-by: Morten H. Larsen <m-larsen@post6.tele.dk>
Signed-off-by: Matt Turner <mattst88@gmail.com>
---
 arch/alpha/kernel/Makefile  | 20 +++++------
 arch/alpha/kernel/ns87312.c | 38 --------------------
 arch/alpha/kernel/pc873xx.c | 88 +++++++++++++++++++++++++++++++++++++++++++++
 arch/alpha/kernel/pc873xx.h | 35 ++++++++++++++++++
 arch/alpha/kernel/sys_sio.c | 23 +++++++++++-
 5 files changed, 155 insertions(+), 49 deletions(-)
 delete mode 100644 arch/alpha/kernel/ns87312.c
 create mode 100644 arch/alpha/kernel/pc873xx.c
 create mode 100644 arch/alpha/kernel/pc873xx.h

diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile
index 7739a62440a7..5a62fb46ef20 100644
--- a/arch/alpha/kernel/Makefile
+++ b/arch/alpha/kernel/Makefile
@@ -35,7 +35,7 @@ endif
 
 obj-y	 += irq_pyxis.o irq_i8259.o irq_srm.o
 obj-y	 += err_ev6.o
-obj-y	 += es1888.o smc37c669.o smc37c93x.o ns87312.o gct.o
+obj-y	 += es1888.o smc37c669.o smc37c93x.o pc873xx.o gct.o
 obj-y    += srmcons.o
 
 else
@@ -63,11 +63,11 @@ obj-$(CONFIG_ALPHA_WILDFIRE)	+= core_wildfire.o
 # Board support
 obj-$(CONFIG_ALPHA_ALCOR)	+= sys_alcor.o irq_i8259.o irq_srm.o
 obj-$(CONFIG_ALPHA_CABRIOLET)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
-				   ns87312.o
+				   pc873xx.o
 obj-$(CONFIG_ALPHA_EB164)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
-				   ns87312.o
+				   pc873xx.o
 obj-$(CONFIG_ALPHA_EB66P)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
-				   ns87312.o
+				   pc873xx.o
 obj-$(CONFIG_ALPHA_LX164)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
 				   smc37c93x.o
 obj-$(CONFIG_ALPHA_PC164)	+= sys_cabriolet.o irq_i8259.o irq_srm.o \
@@ -90,14 +90,14 @@ obj-$(CONFIG_ALPHA_RUFFIAN)	+= sys_ruffian.o irq_pyxis.o irq_i8259.o
 obj-$(CONFIG_ALPHA_RX164)	+= sys_rx164.o irq_i8259.o
 obj-$(CONFIG_ALPHA_SABLE)	+= sys_sable.o
 obj-$(CONFIG_ALPHA_LYNX)	+= sys_sable.o
-obj-$(CONFIG_ALPHA_BOOK1)	+= sys_sio.o irq_i8259.o irq_srm.o ns87312.o
-obj-$(CONFIG_ALPHA_AVANTI)	+= sys_sio.o irq_i8259.o irq_srm.o ns87312.o
-obj-$(CONFIG_ALPHA_NONAME)	+= sys_sio.o irq_i8259.o irq_srm.o ns87312.o
-obj-$(CONFIG_ALPHA_P2K)		+= sys_sio.o irq_i8259.o irq_srm.o ns87312.o
-obj-$(CONFIG_ALPHA_XL)		+= sys_sio.o irq_i8259.o irq_srm.o ns87312.o
+obj-$(CONFIG_ALPHA_BOOK1)	+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_AVANTI)	+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_NONAME)	+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_P2K)		+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
+obj-$(CONFIG_ALPHA_XL)		+= sys_sio.o irq_i8259.o irq_srm.o pc873xx.o
 obj-$(CONFIG_ALPHA_SX164)	+= sys_sx164.o irq_pyxis.o irq_i8259.o \
 				   irq_srm.o smc37c669.o
-obj-$(CONFIG_ALPHA_TAKARA)	+= sys_takara.o irq_i8259.o ns87312.o
+obj-$(CONFIG_ALPHA_TAKARA)	+= sys_takara.o irq_i8259.o pc873xx.o
 obj-$(CONFIG_ALPHA_WILDFIRE)	+= sys_wildfire.o irq_i8259.o
 
 # Error support
diff --git a/arch/alpha/kernel/ns87312.c b/arch/alpha/kernel/ns87312.c
deleted file mode 100644
index 342b56d24c20..000000000000
--- a/arch/alpha/kernel/ns87312.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- *	linux/arch/alpha/kernel/ns87312.c
- */
-
-#include <linux/init.h>
-#include <asm/io.h>
-#include "proto.h"
-
-
-/*
- * The SRM console *disables* the IDE interface, this code ensures it's
- * enabled.
- *
- * This code bangs on a control register of the 87312 Super I/O chip
- * that implements parallel port/serial ports/IDE/FDI.  Depending on
- * the motherboard, the Super I/O chip can be configured through a
- * pair of registers that are located either at I/O ports 0x26e/0x26f
- * or 0x398/0x399.  Unfortunately, autodetecting which base address is
- * in use works only once (right after a reset).  The Super I/O chip
- * has the additional quirk that configuration register data must be
- * written twice (I believe this is a safety feature to prevent
- * accidental modification---fun, isn't it?).
- */
-
-void __init
-ns87312_enable_ide(long ide_base)
-{
-	int data;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	outb(0, ide_base);		/* set the index register for reg #0 */
-	data = inb(ide_base+1);		/* read the current contents */
-	outb(0, ide_base);		/* set the index register for reg #0 */
-	outb(data | 0x40, ide_base+1);	/* turn on IDE */
-	outb(data | 0x40, ide_base+1);	/* turn on IDE, really! */
-	local_irq_restore(flags);
-}
diff --git a/arch/alpha/kernel/pc873xx.c b/arch/alpha/kernel/pc873xx.c
new file mode 100644
index 000000000000..27dcbff85613
--- /dev/null
+++ b/arch/alpha/kernel/pc873xx.c
@@ -0,0 +1,88 @@
+#include <linux/ioport.h>
+#include <asm/io.h>
+
+#include "pc873xx.h"
+
+static unsigned pc873xx_probelist[] = {0x398, 0x26e, 0};
+
+static char *pc873xx_names[] = {
+	"PC87303", "PC87306", "PC87312", "PC87332", "PC87334"
+};
+
+static unsigned int base, model;
+
+
+unsigned int __init pc873xx_get_base()
+{
+	return base;
+}
+
+char *__init pc873xx_get_model()
+{
+	return pc873xx_names[model];
+}
+
+static unsigned char __init pc873xx_read(unsigned int base, int reg)
+{
+	outb(reg, base);
+	return inb(base + 1);
+}
+
+static void __init pc873xx_write(unsigned int base, int reg, unsigned char data)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	outb(reg, base);
+	outb(data, base + 1);
+	outb(data, base + 1);		/* Must be written twice */
+	local_irq_restore(flags);
+}
+
+int __init pc873xx_probe(void)
+{
+	int val, index = 0;
+
+	while ((base = pc873xx_probelist[index++])) {
+
+		if (request_region(base, 2, "Super IO PC873xx") == NULL)
+			continue;
+
+		val = pc873xx_read(base, REG_SID);
+		if ((val & 0xf0) == 0x10) {
+			model = PC87332;
+			break;
+		} else if ((val & 0xf8) == 0x70) {
+			model = PC87306;
+			break;
+		} else if ((val & 0xf8) == 0x50) {
+			model = PC87334;
+			break;
+		} else if ((val & 0xf8) == 0x40) {
+			model = PC87303;
+			break;
+		}
+
+		release_region(base, 2);
+	}
+
+	return (base == 0) ? -1 : 1;
+}
+
+void __init pc873xx_enable_epp19(void)
+{
+	unsigned char data;
+
+	printk(KERN_INFO "PC873xx enabling EPP v1.9\n");
+	data = pc873xx_read(base, REG_PCR);
+	pc873xx_write(base, REG_PCR, (data & 0xFC) | 0x02);
+}
+
+void __init pc873xx_enable_ide(void)
+{
+	unsigned char data;
+
+	printk(KERN_INFO "PC873xx enabling IDE interrupt\n");
+	data = pc873xx_read(base, REG_FER);
+	pc873xx_write(base, REG_FER, data | 0x40);
+}
diff --git a/arch/alpha/kernel/pc873xx.h b/arch/alpha/kernel/pc873xx.h
new file mode 100644
index 000000000000..25e16956fe3e
--- /dev/null
+++ b/arch/alpha/kernel/pc873xx.h
@@ -0,0 +1,35 @@
+
+#ifndef _PC873xx_H_
+#define _PC873xx_H_
+
+/*
+ * Control Register Values
+ */
+#define REG_FER	0x00
+#define REG_FAR	0x01
+#define REG_PTR	0x02
+#define REG_FCR	0x03
+#define REG_PCR	0x04
+#define REG_KRR	0x05
+#define REG_PMC	0x06
+#define REG_TUP	0x07
+#define REG_SID	0x08
+#define REG_ASC	0x09
+#define REG_IRC	0x0e
+
+/*
+ * Model numbers
+ */
+#define PC87303	0
+#define PC87306	1
+#define PC87312	2
+#define PC87332	3
+#define PC87334	4
+
+int pc873xx_probe(void);
+unsigned int pc873xx_get_base(void);
+char *pc873xx_get_model(void);
+void pc873xx_enable_epp19(void);
+void pc873xx_enable_ide(void);
+
+#endif
diff --git a/arch/alpha/kernel/sys_sio.c b/arch/alpha/kernel/sys_sio.c
index d4327e461c22..85b4aea01ef8 100644
--- a/arch/alpha/kernel/sys_sio.c
+++ b/arch/alpha/kernel/sys_sio.c
@@ -34,6 +34,7 @@
 #include "irq_impl.h"
 #include "pci_impl.h"
 #include "machvec_impl.h"
+#include "pc873xx.h"
 
 #if defined(ALPHA_RESTORE_SRM_SETUP)
 /* Save LCA configuration data as the console had it set up.  */
@@ -208,7 +209,27 @@ noname_init_pci(void)
 	common_init_pci();
 	sio_pci_route();
 	sio_fixup_irq_levels(sio_collect_irq_levels());
-	ns87312_enable_ide(0x26e);
+
+	if (pc873xx_probe() == -1) {
+		printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n");
+	} else {
+		printk(KERN_INFO "Found %s Super IO chip at 0x%x\n",
+			pc873xx_get_model(), pc873xx_get_base());
+
+		/* Enabling things in the Super IO chip doesn't actually
+		 * configure and enable things, the legacy drivers still
+		 * need to do the actual configuration and enabling.
+		 * This only unblocks them.
+		 */
+
+#if !defined(CONFIG_ALPHA_AVANTI)
+		/* Don't bother on the Avanti family.
+		 * None of them had on-board IDE.
+		 */
+		pc873xx_enable_ide();
+#endif
+		pc873xx_enable_epp19();
+	}
 }
 
 static inline void __init
-- 
cgit v1.2.3-55-g7522


From 84cc1535cb9043ea1921b81cb086138c0f2dc2b9 Mon Sep 17 00:00:00 2001
From: Morten H. Larsen
Date: Tue, 15 Jun 2010 13:24:58 -0400
Subject: alpha: Fix de2104x driver failing to readout MAC address correctly

This patch fixes a missing read memory barrier that is needed for the
driver to readout the MAC address correctly from the on-board ROM.
Also it replaces the use of the deprecated functions readl()/writel().

Signed-off-by: Morten H. Larsen <m-larsen@post6.tele.dk>
Signed-off-by: Matt Turner <mattst88@gmail.com>
---
 drivers/net/tulip/de2104x.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/tulip/de2104x.c b/drivers/net/tulip/de2104x.c
index c0e70006374e..06b552fca63d 100644
--- a/drivers/net/tulip/de2104x.c
+++ b/drivers/net/tulip/de2104x.c
@@ -367,8 +367,8 @@ static u16 t21041_csr14[] = { 0xFFFF, 0xF7FD, 0xF7FD, 0x6F3F, 0x6F3D, };
 static u16 t21041_csr15[] = { 0x0008, 0x0006, 0x000E, 0x0008, 0x0008, };
 
 
-#define dr32(reg)		readl(de->regs + (reg))
-#define dw32(reg,val)		writel((val), de->regs + (reg))
+#define dr32(reg)	ioread32(de->regs + (reg))
+#define dw32(reg, val)	iowrite32((val), de->regs + (reg))
 
 
 static void de_rx_err_acct (struct de_private *de, unsigned rx_tail,
@@ -1706,6 +1706,7 @@ static void __devinit de21040_get_mac_address (struct de_private *de)
 		int value, boguscnt = 100000;
 		do {
 			value = dr32(ROMCmd);
+			rmb();
 		} while (value < 0 && --boguscnt > 0);
 		de->dev->dev_addr[i] = value;
 		udelay(1);
-- 
cgit v1.2.3-55-g7522


From d6a574ff6bfb842bdb98065da053881ff527be46 Mon Sep 17 00:00:00 2001
From: Tim Gardner
Date: Tue, 8 Jun 2010 11:33:02 -0600
Subject: hostap: Protect against initialization interrupt

Use an irq spinlock to hold off the IRQ handler until
enough early card init is complete such that the handler
can run without faulting.

Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/hostap/hostap_cs.c   | 15 +++++++++++++--
 drivers/net/wireless/hostap/hostap_hw.c   | 13 +++++++++++++
 drivers/net/wireless/hostap/hostap_wlan.h |  2 +-
 3 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c
index db72461c486b..29b31a694b59 100644
--- a/drivers/net/wireless/hostap/hostap_cs.c
+++ b/drivers/net/wireless/hostap/hostap_cs.c
@@ -594,6 +594,7 @@ static int prism2_config(struct pcmcia_device *link)
 	local_info_t *local;
 	int ret = 1;
 	struct hostap_cs_priv *hw_priv;
+	unsigned long flags;
 
 	PDEBUG(DEBUG_FLOW, "prism2_config()\n");
 
@@ -625,9 +626,15 @@ static int prism2_config(struct pcmcia_device *link)
 	local->hw_priv = hw_priv;
 	hw_priv->link = link;
 
+	/*
+	 * Make sure the IRQ handler cannot proceed until at least
+	 * dev->base_addr is initialized.
+	 */
+	spin_lock_irqsave(&local->irq_init_lock, flags);
+
 	ret = pcmcia_request_irq(link, prism2_interrupt);
 	if (ret)
-		goto failed;
+		goto failed_unlock;
 
 	/*
 	 * This actually configures the PCMCIA socket -- setting up
@@ -636,11 +643,13 @@ static int prism2_config(struct pcmcia_device *link)
 	 */
 	ret = pcmcia_request_configuration(link, &link->conf);
 	if (ret)
-		goto failed;
+		goto failed_unlock;
 
 	dev->irq = link->irq;
 	dev->base_addr = link->io.BasePort1;
 
+	spin_unlock_irqrestore(&local->irq_init_lock, flags);
+
 	/* Finally, report what we've done */
 	printk(KERN_INFO "%s: index 0x%02x: ",
 	       dev_info, link->conf.ConfigIndex);
@@ -667,6 +676,8 @@ static int prism2_config(struct pcmcia_device *link)
 
 	return ret;
 
+ failed_unlock:
+	 spin_unlock_irqrestore(&local->irq_init_lock, flags);
  failed:
 	kfree(hw_priv);
 	prism2_release((u_long)link);
diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c
index ff9b5c882184..2f999fc94f60 100644
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -2621,6 +2621,18 @@ static irqreturn_t prism2_interrupt(int irq, void *dev_id)
 	iface = netdev_priv(dev);
 	local = iface->local;
 
+	/* Detect early interrupt before driver is fully configued */
+	spin_lock(&local->irq_init_lock);
+	if (!dev->base_addr) {
+		if (net_ratelimit()) {
+			printk(KERN_DEBUG "%s: Interrupt, but dev not configured\n",
+			       dev->name);
+		}
+		spin_unlock(&local->irq_init_lock);
+		return IRQ_HANDLED;
+	}
+	spin_unlock(&local->irq_init_lock);
+
 	prism2_io_debug_add(dev, PRISM2_IO_DEBUG_CMD_INTERRUPT, 0, 0);
 
 	if (local->func->card_present && !local->func->card_present(local)) {
@@ -3138,6 +3150,7 @@ prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx,
 	spin_lock_init(&local->cmdlock);
 	spin_lock_init(&local->baplock);
 	spin_lock_init(&local->lock);
+	spin_lock_init(&local->irq_init_lock);
 	mutex_init(&local->rid_bap_mtx);
 
 	if (card_idx < 0 || card_idx >= MAX_PARM_DEVICES)
diff --git a/drivers/net/wireless/hostap/hostap_wlan.h b/drivers/net/wireless/hostap/hostap_wlan.h
index 3d238917af07..1ba33be98b25 100644
--- a/drivers/net/wireless/hostap/hostap_wlan.h
+++ b/drivers/net/wireless/hostap/hostap_wlan.h
@@ -654,7 +654,7 @@ struct local_info {
 	rwlock_t iface_lock; /* hostap_interfaces read lock; use write lock
 			      * when removing entries from the list.
 			      * TX and RX paths can use read lock. */
-	spinlock_t cmdlock, baplock, lock;
+	spinlock_t cmdlock, baplock, lock, irq_init_lock;
 	struct mutex rid_bap_mtx;
 	u16 infofid; /* MAC buffer id for info frame */
 	/* txfid, intransmitfid, next_txtid, and next_alloc are protected by
-- 
cgit v1.2.3-55-g7522


From fb73538e10c7fc4823a56e97bba600c2f9294012 Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov
Date: Fri, 11 Jun 2010 01:52:35 +0000
Subject: powerpc/5200: fix oops during going to standby

When going to standby mode mpc code maps the whole soc5200 node
to access warious MBAR registers. However as of_iomap uses 'reg'
property of device node, only small part of MBAR is getting mapped.
Thus pm code gets oops when trying to access high parts of MBAR.
As a way to overcome this, make mpc52xx_pm_prepare() explicitly
map whole MBAR (0xc0000).

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---
 arch/powerpc/platforms/52xx/mpc52xx_pm.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pm.c b/arch/powerpc/platforms/52xx/mpc52xx_pm.c
index a55b0b6813ed..76722532bd95 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pm.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pm.c
@@ -64,10 +64,19 @@ int mpc52xx_pm_prepare(void)
 		{ .type = "builtin", .compatible = "mpc5200", }, /* efika */
 		{}
 	};
+	struct resource res;
 
 	/* map the whole register space */
 	np = of_find_matching_node(NULL, immr_ids);
-	mbar = of_iomap(np, 0);
+
+	if (of_address_to_resource(np, 0, &res)) {
+		pr_err("mpc52xx_pm_prepare(): could not get IMMR address\n");
+		of_node_put(np);
+		return -ENOSYS;
+	}
+
+	mbar = ioremap(res.start, 0xc000); /* we should map whole region including SRAM */
+
 	of_node_put(np);
 	if (!mbar) {
 		pr_err("mpc52xx_pm_prepare(): could not map registers\n");
-- 
cgit v1.2.3-55-g7522


From f487537c2b6b23332bbea7ecb1fe793b6c74d5b2 Mon Sep 17 00:00:00 2001
From: Grant Likely
Date: Mon, 14 Jun 2010 00:03:34 -0600
Subject: powerpc/5200: Fix build error in sound code.

Compiling in the MPC5200 sound drivers results in the following build error:

sound/soc/fsl/mpc5200_psc_ac97.o: In function `to_psc_dma_stream':
mpc5200_psc_ac97.c:(.text+0x0): multiple definition of `to_psc_dma_stream'
sound/soc/fsl/mpc5200_dma.o:mpc5200_dma.c:(.text+0x0): first defined here
sound/soc/fsl/efika-audio-fabric.o: In function `to_psc_dma_stream':
efika-audio-fabric.c:(.text+0x0): multiple definition of `to_psc_dma_stream'
sound/soc/fsl/mpc5200_dma.o:mpc5200_dma.c:(.text+0x0): first defined here
make[3]: *** [sound/soc/fsl/built-in.o] Error 1
make[2]: *** [sound/soc/fsl] Error 2
make[1]: *** [sound/soc] Error 2
make: *** [sound] Error 2

This patch fixes it by declaring the inline function in the header file to
also be a static.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Cc: Jon Smirl <jonsmirl@gmail.com>
Tested-by: John Hilmar Linkhorst <John.Linkhorst@rwth-aachen.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 sound/soc/fsl/mpc5200_dma.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/fsl/mpc5200_dma.h b/sound/soc/fsl/mpc5200_dma.h
index 22208b373fb9..e1ec6d91ea38 100644
--- a/sound/soc/fsl/mpc5200_dma.h
+++ b/sound/soc/fsl/mpc5200_dma.h
@@ -73,7 +73,7 @@ struct psc_dma {
 };
 
 /* Utility for retrieving psc_dma_stream structure from a substream */
-inline struct psc_dma_stream *
+static inline struct psc_dma_stream *
 to_psc_dma_stream(struct snd_pcm_substream *substream, struct psc_dma *psc_dma)
 {
 	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
-- 
cgit v1.2.3-55-g7522


From 2b07be2493681220cac4d185494a4edb0b8efd1e Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov
Date: Wed, 9 Jun 2010 21:16:20 +0000
Subject: powerpc/5200: fix lite5200 ethernet phy address

According to my schematics, on Lite5200 board ethernet phy uses address
0 (all ADDR lines are pulled down). With this change I can talk to
onboard phy (LXT971) and correctly use autonegotiation.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---
 arch/powerpc/boot/dts/lite5200.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/boot/dts/lite5200.dts b/arch/powerpc/boot/dts/lite5200.dts
index d1502ef85edb..179a1785d645 100644
--- a/arch/powerpc/boot/dts/lite5200.dts
+++ b/arch/powerpc/boot/dts/lite5200.dts
@@ -234,8 +234,8 @@
 			reg = <0x3000 0x400>;	// fec range, since we need to setup fec interrupts
 			interrupts = <2 5 0>;	// these are for "mii command finished", not link changes & co.
 
-			phy0: ethernet-phy@1 {
-				reg = <1>;
+			phy0: ethernet-phy@0 {
+				reg = <0>;
 			};
 		};
 
-- 
cgit v1.2.3-55-g7522


From 44b496f685ca68c0d96eb3ad88e3948fad3417d6 Mon Sep 17 00:00:00 2001
From: Dominik Brodowski
Date: Fri, 11 Jun 2010 04:44:55 +0000
Subject: pcmcia: dev_node removal bugfix

Patch c7c2fa07 removed one line too much from smc91c92_cs.c.

Reported-by: Komuro <komurojun-mbn@nifty.com>
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/pcmcia/smc91c92_cs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index 7b6fe89f9db0..64e6a84bbbbe 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -322,6 +322,7 @@ static int smc91c92_probe(struct pcmcia_device *link)
 	return -ENOMEM;
     smc = netdev_priv(dev);
     smc->p_dev = link;
+    link->priv = dev;
 
     spin_lock_init(&smc->lock);
     link->io.NumPorts1 = 16;
-- 
cgit v1.2.3-55-g7522


From bf445080dad9542c6bc6b693d941cae89605134c Mon Sep 17 00:00:00 2001
From: Amit Kumar Salecha
Date: Sun, 13 Jun 2010 23:39:03 +0000
Subject: netxen: fix memory leaks in error path

Fixes memory leak in error path when memory allocation
for adapter data structures fails.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/netxen/netxen_nic_ctx.c  | 3 ++-
 drivers/net/netxen/netxen_nic_init.c | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/netxen/netxen_nic_ctx.c b/drivers/net/netxen/netxen_nic_ctx.c
index f26e54716c88..3a41b6a84a68 100644
--- a/drivers/net/netxen/netxen_nic_ctx.c
+++ b/drivers/net/netxen/netxen_nic_ctx.c
@@ -629,7 +629,8 @@ int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
 	if (addr == NULL) {
 		dev_err(&pdev->dev, "%s: failed to allocate tx desc ring\n",
 				netdev->name);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto err_out_free;
 	}
 
 	tx_ring->desc_head = (struct cmd_desc_type0 *)addr;
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index 045a7c8f5bdf..e08527f4b301 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -218,7 +218,7 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
 	if (cmd_buf_arr == NULL) {
 		dev_err(&pdev->dev, "%s: failed to allocate cmd buffer ring\n",
 		       netdev->name);
-		return -ENOMEM;
+		goto err_out;
 	}
 	memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
 	tx_ring->cmd_buf_arr = cmd_buf_arr;
@@ -230,7 +230,7 @@ int netxen_alloc_sw_resources(struct netxen_adapter *adapter)
 	if (rds_ring == NULL) {
 		dev_err(&pdev->dev, "%s: failed to allocate rds ring struct\n",
 		       netdev->name);
-		return -ENOMEM;
+		goto err_out;
 	}
 	recv_ctx->rds_rings = rds_ring;
 
-- 
cgit v1.2.3-55-g7522


From 2227bae22becb88b75ede022c7bb991aabfb50bb Mon Sep 17 00:00:00 2001
From: Amit Kumar Salecha
Date: Sun, 13 Jun 2010 23:39:04 +0000
Subject: netxen: fix rcv buffer leak

Rcv producer should be read in spin-lock.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/netxen/netxen_nic_init.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index e08527f4b301..c865dda2adf1 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -1805,9 +1805,10 @@ netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
 	netxen_ctx_msg msg = 0;
 	struct list_head *head;
 
+	spin_lock(&rds_ring->lock);
+
 	producer = rds_ring->producer;
 
-	spin_lock(&rds_ring->lock);
 	head = &rds_ring->free_list;
 	while (!list_empty(head)) {
 
@@ -1829,7 +1830,6 @@ netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
 
 		producer = get_next_index(producer, rds_ring->num_desc);
 	}
-	spin_unlock(&rds_ring->lock);
 
 	if (count) {
 		rds_ring->producer = producer;
@@ -1853,6 +1853,8 @@ netxen_post_rx_buffers(struct netxen_adapter *adapter, u32 ringid,
 					NETXEN_RCV_PRODUCER_OFFSET), msg);
 		}
 	}
+
+	spin_unlock(&rds_ring->lock);
 }
 
 static void
@@ -1864,10 +1866,11 @@ netxen_post_rx_buffers_nodb(struct netxen_adapter *adapter,
 	int producer, count = 0;
 	struct list_head *head;
 
-	producer = rds_ring->producer;
 	if (!spin_trylock(&rds_ring->lock))
 		return;
 
+	producer = rds_ring->producer;
+
 	head = &rds_ring->free_list;
 	while (!list_empty(head)) {
 
-- 
cgit v1.2.3-55-g7522


From 7e43cd66d36e8f0900e87d9d287c9ee649cbdd07 Mon Sep 17 00:00:00 2001
From: Amit Kumar Salecha
Date: Sun, 13 Jun 2010 23:39:05 +0000
Subject: netxen: fix caching window register

CRB window register is not per pci-func for NX3031,
so caching can result in incorrect values.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/netxen/netxen_nic_hw.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c
index 5c496f8d7c49..29d7b93d0493 100644
--- a/drivers/net/netxen/netxen_nic_hw.c
+++ b/drivers/net/netxen/netxen_nic_hw.c
@@ -1159,9 +1159,6 @@ netxen_nic_pci_set_crbwindow_2M(struct netxen_adapter *adapter, ulong off)
 
 	window = CRB_HI(off);
 
-	if (adapter->ahw.crb_win == window)
-		return;
-
 	writel(window, addr);
 	if (readl(addr) != window) {
 		if (printk_ratelimit())
@@ -1169,7 +1166,6 @@ netxen_nic_pci_set_crbwindow_2M(struct netxen_adapter *adapter, ulong off)
 				"failed to set CRB window to %d off 0x%lx\n",
 				window, off);
 	}
-	adapter->ahw.crb_win = window;
 }
 
 static void __iomem *
-- 
cgit v1.2.3-55-g7522


From fed396a585d8e1870b326f2e8e1888a72957abb8 Mon Sep 17 00:00:00 2001
From: Herbert Xu
Date: Tue, 15 Jun 2010 21:43:07 -0700
Subject: bridge: Fix OOM crash in deliver_clone

The bridge multicast patches introduced an OOM crash in the forward
path, when deliver_clone fails to clone the skb.

Reported-by: Mark Wagner <mwagner@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_forward.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bridge/br_forward.c b/net/bridge/br_forward.c
index a98ef1393097..a4e72a89e4ff 100644
--- a/net/bridge/br_forward.c
+++ b/net/bridge/br_forward.c
@@ -140,10 +140,10 @@ static int deliver_clone(const struct net_bridge_port *prev,
 			 void (*__packet_hook)(const struct net_bridge_port *p,
 					       struct sk_buff *skb))
 {
+	struct net_device *dev = BR_INPUT_SKB_CB(skb)->brdev;
+
 	skb = skb_clone(skb, GFP_ATOMIC);
 	if (!skb) {
-		struct net_device *dev = BR_INPUT_SKB_CB(skb)->brdev;
-
 		dev->stats.tx_dropped++;
 		return -ENOMEM;
 	}
-- 
cgit v1.2.3-55-g7522


From 090830b4c79cd5ac85430822a9b87c90848bedcf Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar
Date: Wed, 16 Jun 2010 19:01:33 +0300
Subject: OMAP4: clock: Fix multi-omap boot with reset un-used clocks

This patch uses "ENABLE_ON_INIT" flag on the emif clock nodes
to avoid the emif clk getting cut as part of reset un-used clock
routine which prevents boot.

Since "omap4xxx_clk_init()" calls "clk_enable_init_clocks()"
which increases the usecount on all ENABLE_ON_INIT clocks, it
prevents "omap2_clk_disable_unused()" from disabling the clock.

The real fix is to have driver for EMIF and do clock get/enable
as part of it. The EMIF driver is planned to be done HWMOD way
so till that available to keep omap3_defconfig booting on OMAP4430,
this patch is necessary.
(Will updated the auto-gen script for 44xx accordingly)

The fix was suggested by Paul Walmsley

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/clock44xx_data.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index 02804224517b..e10db7a90cb2 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -1369,6 +1369,7 @@ static struct clk emif1_ick = {
 	.ops		= &clkops_omap2_dflt,
 	.enable_reg	= OMAP4430_CM_MEMIF_EMIF_1_CLKCTRL,
 	.enable_bit	= OMAP4430_MODULEMODE_HWCTRL,
+	.flags		= ENABLE_ON_INIT,
 	.clkdm_name	= "l3_emif_clkdm",
 	.parent		= &ddrphy_ck,
 	.recalc		= &followparent_recalc,
@@ -1379,6 +1380,7 @@ static struct clk emif2_ick = {
 	.ops		= &clkops_omap2_dflt,
 	.enable_reg	= OMAP4430_CM_MEMIF_EMIF_2_CLKCTRL,
 	.enable_bit	= OMAP4430_MODULEMODE_HWCTRL,
+	.flags		= ENABLE_ON_INIT,
 	.clkdm_name	= "l3_emif_clkdm",
 	.parent		= &ddrphy_ck,
 	.recalc		= &followparent_recalc,
-- 
cgit v1.2.3-55-g7522


From 2422f676fb78942d054f7e7a2c3ceaeb7945d814 Mon Sep 17 00:00:00 2001
From: Jeff Layton
Date: Wed, 16 Jun 2010 13:40:16 -0400
Subject: cifs: move cifs_new_fileinfo call out of cifs_posix_open

Having cifs_posix_open call cifs_new_fileinfo is problematic and
inconsistent with how "regular" opens work. It's also buggy as
cifs_reopen_file calls this function on a reconnect, which creates a new
struct cifsFileInfo that just gets leaked.

Push it out into the callers. This also allows us to get rid of the
"mnt" arg to cifs_posix_open.

Finally, in the event that a cifsFileInfo isn't or can't be created, we
always want to close the filehandle out on the server as the client
won't have a record of the filehandle and can't actually use it. Make
sure that CIFSSMBClose is called in those cases.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
---
 fs/cifs/cifsproto.h |  1 -
 fs/cifs/dir.c       | 43 ++++++++++++++++++-------------------------
 fs/cifs/file.c      | 17 ++++++++++++-----
 3 files changed, 30 insertions(+), 31 deletions(-)

diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index fb1657e0fdb8..fb6318b81509 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -106,7 +106,6 @@ extern struct cifsFileInfo *cifs_new_fileinfo(struct inode *newinode,
 				__u16 fileHandle, struct file *file,
 				struct vfsmount *mnt, unsigned int oflags);
 extern int cifs_posix_open(char *full_path, struct inode **pinode,
-				struct vfsmount *mnt,
 				struct super_block *sb,
 				int mode, int oflags,
 				__u32 *poplock, __u16 *pnetfid, int xid);
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 391816b461ca..f49afb9980e7 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -188,8 +188,7 @@ cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle,
 }
 
 int cifs_posix_open(char *full_path, struct inode **pinode,
-			struct vfsmount *mnt, struct super_block *sb,
-			int mode, int oflags,
+			struct super_block *sb, int mode, int oflags,
 			__u32 *poplock, __u16 *pnetfid, int xid)
 {
 	int rc;
@@ -258,19 +257,6 @@ int cifs_posix_open(char *full_path, struct inode **pinode,
 		cifs_fattr_to_inode(*pinode, &fattr);
 	}
 
-	/*
-	 * cifs_fill_filedata() takes care of setting cifsFileInfo pointer to
-	 * file->private_data.
-	 */
-	if (mnt) {
-		struct cifsFileInfo *pfile_info;
-
-		pfile_info = cifs_new_fileinfo(*pinode, *pnetfid, NULL, mnt,
-					       oflags);
-		if (pfile_info == NULL)
-			rc = -ENOMEM;
-	}
-
 posix_open_ret:
 	kfree(presp_data);
 	return rc;
@@ -298,7 +284,6 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 	int create_options = CREATE_NOT_DIR;
 	__u32 oplock = 0;
 	int oflags;
-	bool posix_create = false;
 	/*
 	 * BB below access is probably too much for mknod to request
 	 *    but we have to do query and setpathinfo so requesting
@@ -339,7 +324,6 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 	    (CIFS_UNIX_POSIX_PATH_OPS_CAP &
 			le64_to_cpu(tcon->fsUnixInfo.Capability))) {
 		rc = cifs_posix_open(full_path, &newinode,
-			nd ? nd->path.mnt : NULL,
 			inode->i_sb, mode, oflags, &oplock, &fileHandle, xid);
 		/* EIO could indicate that (posix open) operation is not
 		   supported, despite what server claimed in capability
@@ -347,7 +331,6 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 		   handled in posix open */
 
 		if (rc == 0) {
-			posix_create = true;
 			if (newinode == NULL) /* query inode info */
 				goto cifs_create_get_file_info;
 			else /* success, no need to query */
@@ -478,11 +461,7 @@ cifs_create_set_dentry:
 	else
 		cFYI(1, "Create worked, get_inode_info failed rc = %d", rc);
 
-	/* nfsd case - nfs srv does not set nd */
-	if ((nd == NULL) || (!(nd->flags & LOOKUP_OPEN))) {
-		/* mknod case - do not leave file open */
-		CIFSSMBClose(xid, tcon, fileHandle);
-	} else if (!(posix_create) && (newinode)) {
+	if (newinode && nd && (nd->flags & LOOKUP_OPEN)) {
 		struct cifsFileInfo *pfile_info;
 		/*
 		 * cifs_fill_filedata() takes care of setting cifsFileInfo
@@ -492,7 +471,10 @@ cifs_create_set_dentry:
 					       nd->path.mnt, oflags);
 		if (pfile_info == NULL)
 			rc = -ENOMEM;
+	} else {
+		CIFSSMBClose(xid, tcon, fileHandle);
 	}
+
 cifs_create_out:
 	kfree(buf);
 	kfree(full_path);
@@ -636,6 +618,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
 	bool posix_open = false;
 	struct cifs_sb_info *cifs_sb;
 	struct cifsTconInfo *pTcon;
+	struct cifsFileInfo *cfile;
 	struct inode *newInode = NULL;
 	char *full_path = NULL;
 	struct file *filp;
@@ -703,7 +686,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
 		if (nd && !(nd->flags & (LOOKUP_PARENT | LOOKUP_DIRECTORY)) &&
 		     (nd->flags & LOOKUP_OPEN) && !pTcon->broken_posix_open &&
 		     (nd->intent.open.flags & O_CREAT)) {
-			rc = cifs_posix_open(full_path, &newInode, nd->path.mnt,
+			rc = cifs_posix_open(full_path, &newInode,
 					parent_dir_inode->i_sb,
 					nd->intent.open.create_mode,
 					nd->intent.open.flags, &oplock,
@@ -733,8 +716,17 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
 		else
 			direntry->d_op = &cifs_dentry_ops;
 		d_add(direntry, newInode);
-		if (posix_open)
+		if (posix_open) {
+			cfile = cifs_new_fileinfo(newInode, fileHandle, NULL,
+						  nd->path.mnt,
+						  nd->intent.open.flags);
+			if (cfile == NULL) {
+				CIFSSMBClose(xid, pTcon, fileHandle);
+				rc = -ENOMEM;
+				goto lookup_out;
+			}
 			filp = lookup_instantiate_filp(nd, direntry, NULL);
+		}
 		/* since paths are not looked up by component - the parent
 		   directories are presumed to be good here */
 		renew_parental_timestamps(direntry);
@@ -755,6 +747,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
 		is a common return code */
 	}
 
+lookup_out:
 	kfree(full_path);
 	FreeXid(xid);
 	return ERR_PTR(rc);
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 75541af4b3db..542e0c874d64 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -299,8 +299,7 @@ int cifs_open(struct inode *inode, struct file *file)
 		int oflags = (int) cifs_posix_convert_flags(file->f_flags);
 		oflags |= SMB_O_CREAT;
 		/* can not refresh inode info since size could be stale */
-		rc = cifs_posix_open(full_path, &inode, file->f_path.mnt,
-				inode->i_sb,
+		rc = cifs_posix_open(full_path, &inode, inode->i_sb,
 				cifs_sb->mnt_file_mode /* ignored */,
 				oflags, &oplock, &netfid, xid);
 		if (rc == 0) {
@@ -308,7 +307,16 @@ int cifs_open(struct inode *inode, struct file *file)
 			/* no need for special case handling of setting mode
 			   on read only files needed here */
 
-			pCifsFile = cifs_fill_filedata(file);
+			pCifsFile = cifs_new_fileinfo(inode, netfid, file,
+							file->f_path.mnt,
+							oflags);
+			if (pCifsFile == NULL) {
+				CIFSSMBClose(xid, tcon, netfid);
+				rc = -ENOMEM;
+				goto out;
+			}
+			file->private_data = pCifsFile;
+
 			cifs_posix_open_inode_helper(inode, file, pCifsInode,
 						     oplock, netfid);
 			goto out;
@@ -513,8 +521,7 @@ reopen_error_exit:
 			le64_to_cpu(tcon->fsUnixInfo.Capability))) {
 		int oflags = (int) cifs_posix_convert_flags(file->f_flags);
 		/* can not refresh inode info since size could be stale */
-		rc = cifs_posix_open(full_path, NULL, file->f_path.mnt,
-				inode->i_sb,
+		rc = cifs_posix_open(full_path, NULL, inode->i_sb,
 				cifs_sb->mnt_file_mode /* ignored */,
 				oflags, &oplock, &netfid, xid);
 		if (rc == 0) {
-- 
cgit v1.2.3-55-g7522


From 6ca9f3bae8b1854794dfa63cdd3b88b7dfe24c13 Mon Sep 17 00:00:00 2001
From: Jeff Layton
Date: Wed, 16 Jun 2010 13:40:16 -0400
Subject: cifs: pass instantiated filp back after open call

The current scheme of sticking open files on a list and assuming that
cifs_open will scoop them off of it is broken and leads to "Busy
inodes after umount..." errors at unmount time.

The problem is that there is no guarantee that cifs_open will always
be called after a ->lookup or ->create operation. If there are
permissions or other problems, then it's quite likely that it *won't*
be called.

Fix this by fully instantiating the filp whenever the file is created
and pass that filp back to the VFS. If there is a problem, the VFS
can clean up the references.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
---
 fs/cifs/dir.c  | 35 +++++++++++++++++++++++++++--------
 fs/cifs/file.c | 44 ++------------------------------------------
 2 files changed, 29 insertions(+), 50 deletions(-)

diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index f49afb9980e7..e7ae78b66fa1 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -25,6 +25,7 @@
 #include <linux/slab.h>
 #include <linux/namei.h>
 #include <linux/mount.h>
+#include <linux/file.h>
 #include "cifsfs.h"
 #include "cifspdu.h"
 #include "cifsglob.h"
@@ -184,6 +185,8 @@ cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle,
 	}
 	write_unlock(&GlobalSMBSeslock);
 
+	file->private_data = pCifsFile;
+
 	return pCifsFile;
 }
 
@@ -463,14 +466,22 @@ cifs_create_set_dentry:
 
 	if (newinode && nd && (nd->flags & LOOKUP_OPEN)) {
 		struct cifsFileInfo *pfile_info;
-		/*
-		 * cifs_fill_filedata() takes care of setting cifsFileInfo
-		 * pointer to file->private_data.
-		 */
-		pfile_info = cifs_new_fileinfo(newinode, fileHandle, NULL,
+		struct file *filp;
+
+		filp = lookup_instantiate_filp(nd, direntry, generic_file_open);
+		if (IS_ERR(filp)) {
+			rc = PTR_ERR(filp);
+			CIFSSMBClose(xid, tcon, fileHandle);
+			goto cifs_create_out;
+		}
+
+		pfile_info = cifs_new_fileinfo(newinode, fileHandle, filp,
 					       nd->path.mnt, oflags);
-		if (pfile_info == NULL)
+		if (pfile_info == NULL) {
+			fput(filp);
+			CIFSSMBClose(xid, tcon, fileHandle);
 			rc = -ENOMEM;
+		}
 	} else {
 		CIFSSMBClose(xid, tcon, fileHandle);
 	}
@@ -717,15 +728,23 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
 			direntry->d_op = &cifs_dentry_ops;
 		d_add(direntry, newInode);
 		if (posix_open) {
-			cfile = cifs_new_fileinfo(newInode, fileHandle, NULL,
+			filp = lookup_instantiate_filp(nd, direntry,
+						       generic_file_open);
+			if (IS_ERR(filp)) {
+				rc = PTR_ERR(filp);
+				CIFSSMBClose(xid, pTcon, fileHandle);
+				goto lookup_out;
+			}
+
+			cfile = cifs_new_fileinfo(newInode, fileHandle, filp,
 						  nd->path.mnt,
 						  nd->intent.open.flags);
 			if (cfile == NULL) {
+				fput(filp);
 				CIFSSMBClose(xid, pTcon, fileHandle);
 				rc = -ENOMEM;
 				goto lookup_out;
 			}
-			filp = lookup_instantiate_filp(nd, direntry, NULL);
 		}
 		/* since paths are not looked up by component - the parent
 		   directories are presumed to be good here */
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 542e0c874d64..9cbf0f097a39 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -162,38 +162,6 @@ psx_client_can_cache:
 	return 0;
 }
 
-static struct cifsFileInfo *
-cifs_fill_filedata(struct file *file)
-{
-	struct list_head *tmp;
-	struct cifsFileInfo *pCifsFile = NULL;
-	struct cifsInodeInfo *pCifsInode = NULL;
-
-	/* search inode for this file and fill in file->private_data */
-	pCifsInode = CIFS_I(file->f_path.dentry->d_inode);
-	read_lock(&GlobalSMBSeslock);
-	list_for_each(tmp, &pCifsInode->openFileList) {
-		pCifsFile = list_entry(tmp, struct cifsFileInfo, flist);
-		if ((pCifsFile->pfile == NULL) &&
-		    (pCifsFile->pid == current->tgid)) {
-			/* mode set in cifs_create */
-
-			/* needed for writepage */
-			pCifsFile->pfile = file;
-			file->private_data = pCifsFile;
-			break;
-		}
-	}
-	read_unlock(&GlobalSMBSeslock);
-
-	if (file->private_data != NULL) {
-		return pCifsFile;
-	} else if ((file->f_flags & O_CREAT) && (file->f_flags & O_EXCL))
-			cERROR(1, "could not find file instance for "
-				   "new file %p", file);
-	return NULL;
-}
-
 /* all arguments to this function must be checked for validity in caller */
 static inline int cifs_open_inode_helper(struct inode *inode, struct file *file,
 	struct cifsInodeInfo *pCifsInode, struct cifsFileInfo *pCifsFile,
@@ -256,7 +224,7 @@ int cifs_open(struct inode *inode, struct file *file)
 	__u32 oplock;
 	struct cifs_sb_info *cifs_sb;
 	struct cifsTconInfo *tcon;
-	struct cifsFileInfo *pCifsFile;
+	struct cifsFileInfo *pCifsFile = NULL;
 	struct cifsInodeInfo *pCifsInode;
 	char *full_path = NULL;
 	int desiredAccess;
@@ -270,12 +238,6 @@ int cifs_open(struct inode *inode, struct file *file)
 	tcon = cifs_sb->tcon;
 
 	pCifsInode = CIFS_I(file->f_path.dentry->d_inode);
-	pCifsFile = cifs_fill_filedata(file);
-	if (pCifsFile) {
-		rc = 0;
-		FreeXid(xid);
-		return rc;
-	}
 
 	full_path = build_path_from_dentry(file->f_path.dentry);
 	if (full_path == NULL) {
@@ -315,7 +277,6 @@ int cifs_open(struct inode *inode, struct file *file)
 				rc = -ENOMEM;
 				goto out;
 			}
-			file->private_data = pCifsFile;
 
 			cifs_posix_open_inode_helper(inode, file, pCifsInode,
 						     oplock, netfid);
@@ -401,8 +362,7 @@ int cifs_open(struct inode *inode, struct file *file)
 
 	pCifsFile = cifs_new_fileinfo(inode, netfid, file, file->f_path.mnt,
 					file->f_flags);
-	file->private_data = pCifsFile;
-	if (file->private_data == NULL) {
+	if (pCifsFile == NULL) {
 		rc = -ENOMEM;
 		goto out;
 	}
-- 
cgit v1.2.3-55-g7522


From db460242bf75624344efd670ec0f620f476529a3 Mon Sep 17 00:00:00 2001
From: Jeff Layton
Date: Wed, 16 Jun 2010 13:40:17 -0400
Subject: cifs: clean up arguments to cifs_open_inode_helper

...which takes a ton of unneeded arguments and does a lot more pointer
dereferencing than is really needed.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
---
 fs/cifs/file.c | 30 ++++++++++++++----------------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 9cbf0f097a39..5b9d1f25aaec 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -163,11 +163,11 @@ psx_client_can_cache:
 }
 
 /* all arguments to this function must be checked for validity in caller */
-static inline int cifs_open_inode_helper(struct inode *inode, struct file *file,
-	struct cifsInodeInfo *pCifsInode, struct cifsFileInfo *pCifsFile,
+static inline int cifs_open_inode_helper(struct inode *inode,
 	struct cifsTconInfo *pTcon, int *oplock, FILE_ALL_INFO *buf,
 	char *full_path, int xid)
 {
+	struct cifsInodeInfo *pCifsInode = CIFS_I(inode);
 	struct timespec temp;
 	int rc;
 
@@ -181,36 +181,35 @@ static inline int cifs_open_inode_helper(struct inode *inode, struct file *file,
 	/* if not oplocked, invalidate inode pages if mtime or file
 	   size changed */
 	temp = cifs_NTtimeToUnix(buf->LastWriteTime);
-	if (timespec_equal(&file->f_path.dentry->d_inode->i_mtime, &temp) &&
-			   (file->f_path.dentry->d_inode->i_size ==
+	if (timespec_equal(&inode->i_mtime, &temp) &&
+			   (inode->i_size ==
 			    (loff_t)le64_to_cpu(buf->EndOfFile))) {
 		cFYI(1, "inode unchanged on server");
 	} else {
-		if (file->f_path.dentry->d_inode->i_mapping) {
+		if (inode->i_mapping) {
 			/* BB no need to lock inode until after invalidate
 			since namei code should already have it locked? */
-			rc = filemap_write_and_wait(file->f_path.dentry->d_inode->i_mapping);
+			rc = filemap_write_and_wait(inode->i_mapping);
 			if (rc != 0)
-				CIFS_I(file->f_path.dentry->d_inode)->write_behind_rc = rc;
+				pCifsInode->write_behind_rc = rc;
 		}
 		cFYI(1, "invalidating remote inode since open detected it "
 			 "changed");
-		invalidate_remote_inode(file->f_path.dentry->d_inode);
+		invalidate_remote_inode(inode);
 	}
 
 client_can_cache:
 	if (pTcon->unix_ext)
-		rc = cifs_get_inode_info_unix(&file->f_path.dentry->d_inode,
-			full_path, inode->i_sb, xid);
+		rc = cifs_get_inode_info_unix(&inode, full_path, inode->i_sb,
+					      xid);
 	else
-		rc = cifs_get_inode_info(&file->f_path.dentry->d_inode,
-			full_path, buf, inode->i_sb, xid, NULL);
+		rc = cifs_get_inode_info(&inode, full_path, buf, inode->i_sb,
+					 xid, NULL);
 
 	if ((*oplock & 0xF) == OPLOCK_EXCLUSIVE) {
 		pCifsInode->clientCanCacheAll = true;
 		pCifsInode->clientCanCacheRead = true;
-		cFYI(1, "Exclusive Oplock granted on inode %p",
-			 file->f_path.dentry->d_inode);
+		cFYI(1, "Exclusive Oplock granted on inode %p", inode);
 	} else if ((*oplock & 0xF) == OPLOCK_READ)
 		pCifsInode->clientCanCacheRead = true;
 
@@ -367,8 +366,7 @@ int cifs_open(struct inode *inode, struct file *file)
 		goto out;
 	}
 
-	rc = cifs_open_inode_helper(inode, file, pCifsInode, pCifsFile, tcon,
-				    &oplock, buf, full_path, xid);
+	rc = cifs_open_inode_helper(inode, tcon, &oplock, buf, full_path, xid);
 
 	if (oplock & CIFS_CREATE_ACTION) {
 		/* time to set mode which we can not set earlier due to
-- 
cgit v1.2.3-55-g7522


From d9d5d8df953a98621be5b8889e05043d6e32052e Mon Sep 17 00:00:00 2001
From: Suresh Jayaraman
Date: Wed, 16 Jun 2010 13:40:17 -0400
Subject: cifs: don't ignore cifs_posix_open_inode_helper return value

...and ensure that we propagate the error back to avoid any surprises.

Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Reviewed-and-Tested-by: Jeff Layton <jlayton@redhat.com>
---
 fs/cifs/file.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 5b9d1f25aaec..02a2df9cdd9c 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -277,8 +277,8 @@ int cifs_open(struct inode *inode, struct file *file)
 				goto out;
 			}
 
-			cifs_posix_open_inode_helper(inode, file, pCifsInode,
-						     oplock, netfid);
+			rc = cifs_posix_open_inode_helper(inode, file,
+					pCifsInode, oplock, netfid);
 			goto out;
 		} else if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
 			if (tcon->ses->serverNOS)
-- 
cgit v1.2.3-55-g7522


From 47c78b7f40a9931a264e3c9bddccacdf8dfb9a30 Mon Sep 17 00:00:00 2001
From: Jeff Layton
Date: Wed, 16 Jun 2010 13:40:17 -0400
Subject: cifs: don't call cifs_new_fileinfo unless cifs_open succeeds

It's currently possible for cifs_open to fail after it has already
called cifs_new_fileinfo. In that situation, the new fileinfo will be
leaked as the caller doesn't call fput. That in turn leads to a busy
inodes after umount problem since the fileinfo holds an extra inode
reference now. Shuffle cifs_open around a bit so that it only calls
cifs_new_fileinfo if it's going to succeed.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-and-Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
---
 fs/cifs/file.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 02a2df9cdd9c..409e4f523e61 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -268,17 +268,20 @@ int cifs_open(struct inode *inode, struct file *file)
 			/* no need for special case handling of setting mode
 			   on read only files needed here */
 
+			rc = cifs_posix_open_inode_helper(inode, file,
+					pCifsInode, oplock, netfid);
+			if (rc != 0) {
+				CIFSSMBClose(xid, tcon, netfid);
+				goto out;
+			}
+
 			pCifsFile = cifs_new_fileinfo(inode, netfid, file,
 							file->f_path.mnt,
 							oflags);
 			if (pCifsFile == NULL) {
 				CIFSSMBClose(xid, tcon, netfid);
 				rc = -ENOMEM;
-				goto out;
 			}
-
-			rc = cifs_posix_open_inode_helper(inode, file,
-					pCifsInode, oplock, netfid);
 			goto out;
 		} else if ((rc == -EINVAL) || (rc == -EOPNOTSUPP)) {
 			if (tcon->ses->serverNOS)
@@ -359,6 +362,10 @@ int cifs_open(struct inode *inode, struct file *file)
 		goto out;
 	}
 
+	rc = cifs_open_inode_helper(inode, tcon, &oplock, buf, full_path, xid);
+	if (rc != 0)
+		goto out;
+
 	pCifsFile = cifs_new_fileinfo(inode, netfid, file, file->f_path.mnt,
 					file->f_flags);
 	if (pCifsFile == NULL) {
@@ -366,8 +373,6 @@ int cifs_open(struct inode *inode, struct file *file)
 		goto out;
 	}
 
-	rc = cifs_open_inode_helper(inode, tcon, &oplock, buf, full_path, xid);
-
 	if (oplock & CIFS_CREATE_ACTION) {
 		/* time to set mode which we can not set earlier due to
 		   problems creating new read-only files */
-- 
cgit v1.2.3-55-g7522


From 8a224d489454b7457105848610cfebebdec5638d Mon Sep 17 00:00:00 2001
From: Jeff Layton
Date: Wed, 16 Jun 2010 13:40:18 -0400
Subject: cifs: remove bogus first_time check in NTLMv2 session setup code

This bug appears to be the result of a cut-and-paste mistake from the
NTLMv1 code. The function to generate the MAC key was commented out, but
not the conditional above it. The conditional then ended up causing the
session setup key not to be copied to the buffer unless this was the
first session on the socket, and that made all but the first NTLMv2
session setup fail.

Fix this by removing the conditional and all of the commented clutter
that made it difficult to see.

Cc: Stable <stable@kernel.org>
Reported-by: Gunther Deschner <gdeschne@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
---
 fs/cifs/sess.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 7707389bdf2c..0a57cb7db5dd 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -730,15 +730,7 @@ ssetup_ntlmssp_authenticate:
 
 		/* calculate session key */
 		setup_ntlmv2_rsp(ses, v2_sess_key, nls_cp);
-		if (first_time) /* should this be moved into common code
-				   with similar ntlmv2 path? */
-		/*   cifs_calculate_ntlmv2_mac_key(ses->server->mac_signing_key,
-				response BB FIXME, v2_sess_key); */
-
-		/* copy session key */
-
-	/*	memcpy(bcc_ptr, (char *)ntlm_session_key,LM2_SESS_KEY_SIZE);
-		bcc_ptr += LM2_SESS_KEY_SIZE; */
+		/* FIXME: calculate MAC key */
 		memcpy(bcc_ptr, (char *)v2_sess_key,
 		       sizeof(struct ntlmv2_resp));
 		bcc_ptr += sizeof(struct ntlmv2_resp);
-- 
cgit v1.2.3-55-g7522


From 021570e55b7152843376b9d9f60624e3e05ac054 Mon Sep 17 00:00:00 2001
From: Christoph Fritz
Date: Wed, 16 Jun 2010 16:37:34 +0200
Subject: mac80211: fix warn, enum may be used uninitialized

regression introduced by b8d92c9c141ee3dc9b3537b1f0ffb4a54ea8d9b2

In function ‘ieee80211_work_rx_queued_mgmt’:
warning: ‘rma’ may be used uninitialized in this function

this re-adds default value WORK_ACT_NONE back to rma

Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/mac80211/work.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/work.c b/net/mac80211/work.c
index be3d4a698692..b025dc7bb0fd 100644
--- a/net/mac80211/work.c
+++ b/net/mac80211/work.c
@@ -715,7 +715,7 @@ static void ieee80211_work_rx_queued_mgmt(struct ieee80211_local *local,
 	struct ieee80211_rx_status *rx_status;
 	struct ieee80211_mgmt *mgmt;
 	struct ieee80211_work *wk;
-	enum work_action rma;
+	enum work_action rma = WORK_ACT_NONE;
 	u16 fc;
 
 	rx_status = (struct ieee80211_rx_status *) skb->cb;
-- 
cgit v1.2.3-55-g7522


From 97553f7f3e7a0305d017df9cc6e9589f64878437 Mon Sep 17 00:00:00 2001
From: Manfred Rudigier
Date: Fri, 11 Jun 2010 01:49:05 +0000
Subject: gianfar: Fix setup of RX time stamping

Previously the RCTRL_TS_ENABLE bit was set unconditionally. However, if
the RCTRL_TS_ENABLE is set without TMR_CTRL[TE], the driver does not work
properly on some boards (Anton had problems with the MPC8313ERDB and
MPC8568EMDS).

With this patch the bit will only be set if requested from user space
with the SIOCSHWTSTAMP ioctl command, meaning that time stamping is
disabled during normal operation. Users who are not interested in time
stamps will not experience problems with buggy CPU revisions or
performance drops any more.

The setting of TMR_CTRL[TE] is still up to the user. This is considered
safe because users wanting HW timestamps must initialize the eTSEC clock
first anyway, e.g. with the recently submitted PTP clock driver.

Signed-off-by: Manfred Rudigier <manfred.rudigier@omicron.at>
Reviewed-by: Anton Vorontsov <cbouatmailru@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/gianfar.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 46c69cd06553..227b628bc214 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -381,10 +381,14 @@ static void gfar_init_mac(struct net_device *ndev)
 	/* Insert receive time stamps into padding alignment bytes */
 	if (priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER) {
 		rctrl &= ~RCTRL_PAL_MASK;
-		rctrl |= RCTRL_PRSDEP_INIT | RCTRL_TS_ENABLE | RCTRL_PADDING(8);
+		rctrl |= RCTRL_PADDING(8);
 		priv->padding = 8;
 	}
 
+	/* Enable HW time stamping if requested from user space */
+	if (priv->hwts_rx_en)
+		rctrl |= RCTRL_PRSDEP_INIT | RCTRL_TS_ENABLE;
+
 	/* keep vlan related bits if it's enabled */
 	if (priv->vlgrp) {
 		rctrl |= RCTRL_VLEX | RCTRL_PRSDEP_INIT;
@@ -747,7 +751,8 @@ static int gfar_of_init(struct of_device *ofdev, struct net_device **pdev)
 			FSL_GIANFAR_DEV_HAS_CSUM |
 			FSL_GIANFAR_DEV_HAS_VLAN |
 			FSL_GIANFAR_DEV_HAS_MAGIC_PACKET |
-			FSL_GIANFAR_DEV_HAS_EXTENDED_HASH;
+			FSL_GIANFAR_DEV_HAS_EXTENDED_HASH |
+			FSL_GIANFAR_DEV_HAS_TIMER;
 
 	ctype = of_get_property(np, "phy-connection-type", NULL);
 
@@ -805,12 +810,20 @@ static int gfar_hwtstamp_ioctl(struct net_device *netdev,
 
 	switch (config.rx_filter) {
 	case HWTSTAMP_FILTER_NONE:
-		priv->hwts_rx_en = 0;
+		if (priv->hwts_rx_en) {
+			stop_gfar(netdev);
+			priv->hwts_rx_en = 0;
+			startup_gfar(netdev);
+		}
 		break;
 	default:
 		if (!(priv->device_flags & FSL_GIANFAR_DEV_HAS_TIMER))
 			return -ERANGE;
-		priv->hwts_rx_en = 1;
+		if (!priv->hwts_rx_en) {
+			stop_gfar(netdev);
+			priv->hwts_rx_en = 1;
+			startup_gfar(netdev);
+		}
 		config.rx_filter = HWTSTAMP_FILTER_ALL;
 		break;
 	}
-- 
cgit v1.2.3-55-g7522


From fa68a7822780fdc1295f7efb7e4313e62b447e75 Mon Sep 17 00:00:00 2001
From: Tom Hughes
Date: Tue, 15 Jun 2010 22:24:28 +0000
Subject: Clear IFF_XMIT_DST_RELEASE for teql interfaces

https://bugzilla.kernel.org/show_bug.cgi?id=16183

The sch_teql module, which can be used to load balance over a set of
underlying interfaces, stopped working after 2.6.30 and has been
broken in all kernels since then for any underlying interface which
requires the addition of link level headers.

The problem is that the transmit routine relies on being able to
access the destination address in the skb in order to do address
resolution once it has decided which underlying interface it is going
to transmit through.

In 2.6.31 the IFF_XMIT_DST_RELEASE flag was introduced, and set by
default for all interfaces, which causes the destination address to be
released before the transmit routine for the interface is called.

The solution is to clear that flag for teql interfaces.

Signed-off-by: Tom Hughes <tom@compton.nu>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/sch_teql.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index 3415b6ce1c0a..807643bdcbac 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -449,6 +449,7 @@ static __init void teql_master_setup(struct net_device *dev)
 	dev->tx_queue_len	= 100;
 	dev->flags		= IFF_NOARP;
 	dev->hard_header_len	= LL_MAX_HEADER;
+	dev->priv_flags		&= ~IFF_XMIT_DST_RELEASE;
 }
 
 static LIST_HEAD(master_dev_list);
-- 
cgit v1.2.3-55-g7522


From 756725064fe6abbcdb43b1e64d017649b828be35 Mon Sep 17 00:00:00 2001
From: Don Skidmore
Date: Tue, 15 Jun 2010 09:23:17 +0000
Subject: ixgbe: add comment on SFP+ ID for Active DA

These comments were forgotten in the initial patch to add this
functionality.  This patch corrects that.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ixgbe/ixgbe_phy.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ixgbe/ixgbe_phy.c b/drivers/net/ixgbe/ixgbe_phy.c
index 09e1911ff510..48325a5beff2 100644
--- a/drivers/net/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ixgbe/ixgbe_phy.c
@@ -575,6 +575,8 @@ s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw)
 		 * 4    SFP_DA_CORE1 - 82599-specific
 		 * 5    SFP_SR/LR_CORE0 - 82599-specific
 		 * 6    SFP_SR/LR_CORE1 - 82599-specific
+		 * 7    SFP_act_lmt_DA_CORE0 - 82599-specific
+		 * 8    SFP_act_lmt_DA_CORE1 - 82599-specific
 		 */
 		if (hw->mac.type == ixgbe_mac_82598EB) {
 			if (cable_tech & IXGBE_SFF_DA_PASSIVE_CABLE)
-- 
cgit v1.2.3-55-g7522


From a91fb143de61dce847e319ca79b9937a665ad622 Mon Sep 17 00:00:00 2001
From: Jan-Bernd Themann
Date: Tue, 15 Jun 2010 05:35:16 +0000
Subject: ehea: fix delayed packet processing

In the eHEA poll function an rmb() is required. Without that some packets
on the receive queue are not seen and thus delayed until the next interrupt
is handled for the same receive queue.

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ehea/ehea_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index f547894ff48f..fd890faf5174 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -867,6 +867,7 @@ static int ehea_poll(struct napi_struct *napi, int budget)
 		ehea_reset_cq_ep(pr->send_cq);
 		ehea_reset_cq_n1(pr->recv_cq);
 		ehea_reset_cq_n1(pr->send_cq);
+		rmb();
 		cqe = ehea_poll_rq1(pr->qp, &wqe_index);
 		cqe_skb = ehea_poll_cq(pr->send_cq);
 
-- 
cgit v1.2.3-55-g7522


From 099473c16bac7b936994bc95b5fd96f36397e1ad Mon Sep 17 00:00:00 2001
From: Jan-Bernd Themann
Date: Tue, 15 Jun 2010 05:35:42 +0000
Subject: ehea: Fix kernel deadlock in DLPAR-mem processing

Port reset operations and memory add/remove operations need to
be serialized to avoid a kernel deadlock. The deadlock is caused
by calling the napi_disable() function twice.
Therefore we have to employ the dlpar_mem_lock in the ehea_reset_port
function as well

Signed-off-by: Jan-Bernd Themann <themann@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ehea/ehea.h      | 2 +-
 drivers/net/ehea/ehea_main.c | 8 +++-----
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ehea/ehea.h b/drivers/net/ehea/ehea.h
index 0630980a2722..0060e422f171 100644
--- a/drivers/net/ehea/ehea.h
+++ b/drivers/net/ehea/ehea.h
@@ -40,7 +40,7 @@
 #include <asm/io.h>
 
 #define DRV_NAME	"ehea"
-#define DRV_VERSION	"EHEA_0103"
+#define DRV_VERSION	"EHEA_0105"
 
 /* eHEA capability flags */
 #define DLPAR_PORT_ADD_REM 1
diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index fd890faf5174..8b92acb448c2 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -2860,6 +2860,7 @@ static void ehea_reset_port(struct work_struct *work)
 		container_of(work, struct ehea_port, reset_task);
 	struct net_device *dev = port->netdev;
 
+	mutex_lock(&dlpar_mem_lock);
 	port->resets++;
 	mutex_lock(&port->port_lock);
 	netif_stop_queue(dev);
@@ -2882,6 +2883,7 @@ static void ehea_reset_port(struct work_struct *work)
 	netif_wake_queue(dev);
 out:
 	mutex_unlock(&port->port_lock);
+	mutex_unlock(&dlpar_mem_lock);
 }
 
 static void ehea_rereg_mrs(struct work_struct *work)
@@ -3543,10 +3545,7 @@ static int ehea_mem_notifier(struct notifier_block *nb,
 	int ret = NOTIFY_BAD;
 	struct memory_notify *arg = data;
 
-	if (!mutex_trylock(&dlpar_mem_lock)) {
-		ehea_info("ehea_mem_notifier must not be called parallelized");
-		goto out;
-	}
+	mutex_lock(&dlpar_mem_lock);
 
 	switch (action) {
 	case MEM_CANCEL_OFFLINE:
@@ -3575,7 +3574,6 @@ static int ehea_mem_notifier(struct notifier_block *nb,
 
 out_unlock:
 	mutex_unlock(&dlpar_mem_lock);
-out:
 	return ret;
 }
 
-- 
cgit v1.2.3-55-g7522


From 63b88b9041ceef8217f34de71a2e96f0c3f0fd3b Mon Sep 17 00:00:00 2001
From: Anton Vorontsov
Date: Fri, 11 Jun 2010 10:51:03 +0000
Subject: gianfar: Fix oversized packets handling

Issuing the following command on host:

$ ifconfig eth2 mtu 1600 ; ping 10.0.0.27 -s 1485 -c 1

Makes some boards (tested with MPC8315 rev 1.1 and MPC8313 rev 1.0)
oops like this:

  skb_over_panic: text:c0195914 len:1537 put:1537 head:c79e4800 data:c79e4880 tail:0xc79e4e81 end:0xc79e4e80 dev:eth1
  ------------[ cut here ]------------
  kernel BUG at net/core/skbuff.c:127!
  Oops: Exception in kernel mode, sig: 5 [#1]
  MPC831x RDB
  last sysfs file: /sys/kernel/uevent_seqnum
  Modules linked in:
  NIP: c01c1840 LR: c01c1840 CTR: c016d918
  [...]
  NIP [c01c1840] skb_over_panic+0x48/0x5c
  LR [c01c1840] skb_over_panic+0x48/0x5c
  Call Trace:
  [c0339d50] [c01c1840] skb_over_panic+0x48/0x5c (unreliable)
  [c0339d60] [c01c3020] skb_put+0x5c/0x60
  [c0339d70] [c0195914] gfar_clean_rx_ring+0x25c/0x3d0
  [c0339dc0] [c01976e8] gfar_poll+0x170/0x1bc

Dumped buffer descriptors showed that eTSEC's length/truncation
logic sometimes passes oversized packets, i.e. for the above ICMP
packet the following two buffer descriptors may become ready:

  status=1400 length=1536
  status=1800 length=1541

So, it seems that gianfar actually receives the whole big frame,
and it tries to place the packet into two BDs. This situation
confuses the driver, and so the skb_put() sanity check fails.

This patch fixes the issue by adding an appropriate check, i.e.
the driver should not try to process frames with buffer
descriptor's length over rx_buffer_size (i.e. maxfrm and mrblr).

Note that sometimes eTSEC works correctly, i.e. in the second
(last) buffer descriptor bits 'truncated' and 'crcerr' are set,
and so there's no oops. Though I couldn't find any logic when
it works correctly and when not.

Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/gianfar.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/gianfar.c b/drivers/net/gianfar.c
index 227b628bc214..28b53d1cd4f1 100644
--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -2655,6 +2655,10 @@ int gfar_clean_rx_ring(struct gfar_priv_rx_q *rx_queue, int rx_work_limit)
 		dma_unmap_single(&priv->ofdev->dev, bdp->bufPtr,
 				priv->rx_buffer_size, DMA_FROM_DEVICE);
 
+		if (unlikely(!(bdp->status & RXBD_ERR) &&
+				bdp->length > priv->rx_buffer_size))
+			bdp->status = RXBD_LARGE;
+
 		/* We drop the frame if we failed to allocate a new buffer */
 		if (unlikely(!newskb || !(bdp->status & RXBD_LAST) ||
 				 bdp->status & RXBD_ERR)) {
-- 
cgit v1.2.3-55-g7522


From 8b1d920fa5ea8e3d941e908fa57acc9b1df9ca92 Mon Sep 17 00:00:00 2001
From: Ken Kawasaki
Date: Sat, 12 Jun 2010 00:17:28 +0000
Subject: pcnet_cs: add new id (TOSHIBA Modem/LAN Card)

pcnet_cs:
serial_cs:
    add new id (TOSHIBA Modem/LAN Card)

Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/pcmcia/pcnet_cs.c | 1 +
 drivers/serial/serial_cs.c    | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c
index 6f77a768ba88..bfdef72c5d5e 100644
--- a/drivers/net/pcmcia/pcnet_cs.c
+++ b/drivers/net/pcmcia/pcnet_cs.c
@@ -1727,6 +1727,7 @@ static struct pcmcia_device_id pcnet_ids[] = {
 	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "Psion Dacom", "Gold Card V34 Ethernet", 0xf5f025c2, 0x338e8155, "cis/PCMLM28.cis"),
 	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "Psion Dacom", "Gold Card V34 Ethernet GSM", 0xf5f025c2, 0x4ae85d35, "cis/PCMLM28.cis"),
 	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "LINKSYS", "PCMLM28", 0xf7cb0b07, 0x66881874, "cis/PCMLM28.cis"),
+	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(0, "TOSHIBA", "Modem/LAN Card", 0xb4585a1a, 0x53f922f8, "cis/PCMLM28.cis"),
 	PCMCIA_MFC_DEVICE_CIS_PROD_ID12(0, "DAYNA COMMUNICATIONS", "LAN AND MODEM MULTIFUNCTION", 0x8fdf8f89, 0xdd5ed9e8, "cis/DP83903.cis"),
 	PCMCIA_MFC_DEVICE_CIS_PROD_ID4(0, "NSC MF LAN/Modem", 0x58fc6056, "cis/DP83903.cis"),
 	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(0, 0x0175, 0x0000, "cis/DP83903.cis"),
diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c
index dadd686c9801..8bb715a1a7a6 100644
--- a/drivers/serial/serial_cs.c
+++ b/drivers/serial/serial_cs.c
@@ -807,6 +807,7 @@ static struct pcmcia_device_id serial_ids[] = {
 	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "Psion Dacom", "Gold Card V34 Ethernet", 0xf5f025c2, 0x338e8155, "cis/PCMLM28.cis"),
 	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "Psion Dacom", "Gold Card V34 Ethernet GSM", 0xf5f025c2, 0x4ae85d35, "cis/PCMLM28.cis"),
 	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "LINKSYS", "PCMLM28", 0xf7cb0b07, 0x66881874, "cis/PCMLM28.cis"),
+	PCMCIA_PFC_DEVICE_CIS_PROD_ID12(1, "TOSHIBA", "Modem/LAN Card", 0xb4585a1a, 0x53f922f8, "cis/PCMLM28.cis"),
 	PCMCIA_MFC_DEVICE_CIS_PROD_ID12(1, "DAYNA COMMUNICATIONS", "LAN AND MODEM MULTIFUNCTION", 0x8fdf8f89, 0xdd5ed9e8, "cis/DP83903.cis"),
 	PCMCIA_MFC_DEVICE_CIS_PROD_ID4(1, "NSC MF LAN/Modem", 0x58fc6056, "cis/DP83903.cis"),
 	PCMCIA_MFC_DEVICE_CIS_MANF_CARD(1, 0x0101, 0x0556, "cis/3CCFEM556.cis"),
-- 
cgit v1.2.3-55-g7522


From db176edc89abbf22e6db6853f8581f9475fe8ec1 Mon Sep 17 00:00:00 2001
From: Sergey Matyukevich
Date: Mon, 14 Jun 2010 06:35:20 +0000
Subject: ucc_geth: fix for RX skb buffers recycling

This patch implements a proper modification of RX skb buffers before
recycling. Adjusting only skb->data is not enough because after that
skb->tail and skb->len become incorrect.

Signed-off-by: Sergey Matyukevich <geomatsi@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ucc_geth.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 4a34833b85dd..807470e156af 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -3215,6 +3215,8 @@ static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit
 					   __func__, __LINE__, (u32) skb);
 			if (skb) {
 				skb->data = skb->head + NET_SKB_PAD;
+				skb->len = 0;
+				skb_reset_tail_pointer(skb);
 				__skb_queue_head(&ugeth->rx_recycle, skb);
 			}
 
-- 
cgit v1.2.3-55-g7522


From 2a383cb3f1a571b281c2e1ace4c8491f0370e866 Mon Sep 17 00:00:00 2001
From: Eliot Blennerhassett
Date: Thu, 17 Jun 2010 17:08:36 +1200
Subject: ALSA: asihpi - Get rid of incorrect "long" types and casts.

These give incorrect results for index wrap on 64 bit.

Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/asihpi/hpi6205.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/sound/pci/asihpi/hpi6205.c b/sound/pci/asihpi/hpi6205.c
index e89991ea3543..3b4413448226 100644
--- a/sound/pci/asihpi/hpi6205.c
+++ b/sound/pci/asihpi/hpi6205.c
@@ -941,11 +941,11 @@ static void outstream_host_buffer_free(struct hpi_adapter_obj *pao,
 
 }
 
-static long outstream_get_space_available(struct hpi_hostbuffer_status
+static u32 outstream_get_space_available(struct hpi_hostbuffer_status
 	*status)
 {
-	return status->size_in_bytes - ((long)(status->host_index) -
-		(long)(status->dSP_index));
+	return status->size_in_bytes - (status->host_index -
+		status->dSP_index);
 }
 
 static void outstream_write(struct hpi_adapter_obj *pao,
@@ -954,7 +954,7 @@ static void outstream_write(struct hpi_adapter_obj *pao,
 	struct hpi_hw_obj *phw = pao->priv;
 	struct bus_master_interface *interface = phw->p_interface_buffer;
 	struct hpi_hostbuffer_status *status;
-	long space_available;
+	u32 space_available;
 
 	if (!phw->outstream_host_buffer_size[phm->obj_index]) {
 		/* there  is no BBM buffer, write via message */
@@ -1007,7 +1007,7 @@ static void outstream_write(struct hpi_adapter_obj *pao,
 	}
 
 	space_available = outstream_get_space_available(status);
-	if (space_available < (long)phm->u.d.u.data.data_size) {
+	if (space_available < phm->u.d.u.data.data_size) {
 		phr->error = HPI_ERROR_INVALID_DATASIZE;
 		return;
 	}
@@ -1018,7 +1018,7 @@ static void outstream_write(struct hpi_adapter_obj *pao,
 		&& hpios_locked_mem_valid(&phw->outstream_host_buffers[phm->
 				obj_index])) {
 		u8 *p_bbm_data;
-		long l_first_write;
+		u32 l_first_write;
 		u8 *p_app_data = (u8 *)phm->u.d.u.data.pb_data;
 
 		if (hpios_locked_mem_get_virt_addr(&phw->
@@ -1248,9 +1248,9 @@ static void instream_start(struct hpi_adapter_obj *pao,
 	hw_message(pao, phm, phr);
 }
 
-static long instream_get_bytes_available(struct hpi_hostbuffer_status *status)
+static u32 instream_get_bytes_available(struct hpi_hostbuffer_status *status)
 {
-	return (long)(status->dSP_index) - (long)(status->host_index);
+	return status->dSP_index - status->host_index;
 }
 
 static void instream_read(struct hpi_adapter_obj *pao,
@@ -1259,9 +1259,9 @@ static void instream_read(struct hpi_adapter_obj *pao,
 	struct hpi_hw_obj *phw = pao->priv;
 	struct bus_master_interface *interface = phw->p_interface_buffer;
 	struct hpi_hostbuffer_status *status;
-	long data_available;
+	u32 data_available;
 	u8 *p_bbm_data;
-	long l_first_read;
+	u32 l_first_read;
 	u8 *p_app_data = (u8 *)phm->u.d.u.data.pb_data;
 
 	if (!phw->instream_host_buffer_size[phm->obj_index]) {
@@ -1272,7 +1272,7 @@ static void instream_read(struct hpi_adapter_obj *pao,
 
 	status = &interface->instream_host_buffer_status[phm->obj_index];
 	data_available = instream_get_bytes_available(status);
-	if (data_available < (long)phm->u.d.u.data.data_size) {
+	if (data_available < phm->u.d.u.data.data_size) {
 		phr->error = HPI_ERROR_INVALID_DATASIZE;
 		return;
 	}
-- 
cgit v1.2.3-55-g7522


From a92d3ff9e5dbd958d8008a3e7a573e988e370ca3 Mon Sep 17 00:00:00 2001
From: Pavel V. Panteleev
Date: Thu, 17 Jun 2010 10:07:25 +0200
Subject: percpu: fix trivial bugs in pcpu_build_alloc_info()

Fix the following two trivial bugs in pcpu_build_alloc_info()

* we should memset group_cnt to 0 by size of group_cnt, not size of
  group_map (both are of the same size, so the bug isn't dangerous)

* we can delete useless variable group_cnt_max.

Signed-off-by: Pavel V. Panteleev <pp_84@mail.ru>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 mm/percpu.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/mm/percpu.c b/mm/percpu.c
index 39f7dfd59585..46485e1b26fc 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1086,7 +1086,7 @@ struct pcpu_alloc_info * __init pcpu_build_alloc_info(
 	static int group_map[NR_CPUS] __initdata;
 	static int group_cnt[NR_CPUS] __initdata;
 	const size_t static_size = __per_cpu_end - __per_cpu_start;
-	int group_cnt_max = 0, nr_groups = 1, nr_units = 0;
+	int nr_groups = 1, nr_units = 0;
 	size_t size_sum, min_unit_size, alloc_size;
 	int upa, max_upa, uninitialized_var(best_upa);	/* units_per_alloc */
 	int last_allocs, group, unit;
@@ -1096,7 +1096,7 @@ struct pcpu_alloc_info * __init pcpu_build_alloc_info(
 
 	/* this function may be called multiple times */
 	memset(group_map, 0, sizeof(group_map));
-	memset(group_cnt, 0, sizeof(group_map));
+	memset(group_cnt, 0, sizeof(group_cnt));
 
 	/*
 	 * Determine min_unit_size, alloc_size and max_upa such that
@@ -1130,7 +1130,6 @@ struct pcpu_alloc_info * __init pcpu_build_alloc_info(
 		}
 		group_map[cpu] = group;
 		group_cnt[group]++;
-		group_cnt_max = max(group_cnt_max, group_cnt[group]);
 	}
 
 	/*
-- 
cgit v1.2.3-55-g7522


From fbbf055692aeb25c54c49d9ca84532de836fbba0 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Thu, 17 Jun 2010 09:54:32 +0200
Subject: block: fix DISCARD_BARRIER requests

Filesystems assume that DISCARD_BARRIER are full barriers, so that they
don't have to track in-progress discard operation when submitting new I/O.
But currently we only treat them as elevator barriers, which don't
actually do the nessecary queue drains.

Also remove the unlikely around both the DISCARD and BARRIER requests -
the happen far too often for a static mispredict.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 block/blk-core.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index f84cce42fc58..3deca77e0254 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1149,13 +1149,10 @@ void init_request_from_bio(struct request *req, struct bio *bio)
 	else
 		req->cmd_flags |= bio->bi_rw & REQ_FAILFAST_MASK;
 
-	if (unlikely(bio_rw_flagged(bio, BIO_RW_DISCARD))) {
+	if (bio_rw_flagged(bio, BIO_RW_DISCARD))
 		req->cmd_flags |= REQ_DISCARD;
-		if (bio_rw_flagged(bio, BIO_RW_BARRIER))
-			req->cmd_flags |= REQ_SOFTBARRIER;
-	} else if (unlikely(bio_rw_flagged(bio, BIO_RW_BARRIER)))
+	if (bio_rw_flagged(bio, BIO_RW_BARRIER))
 		req->cmd_flags |= REQ_HARDBARRIER;
-
 	if (bio_rw_flagged(bio, BIO_RW_SYNCIO))
 		req->cmd_flags |= REQ_RW_SYNC;
 	if (bio_rw_flagged(bio, BIO_RW_META))
-- 
cgit v1.2.3-55-g7522


From f1f5bda4e9726456bd132e738bf60b727856477e Mon Sep 17 00:00:00 2001
From: Hans-Christian Egtvedt
Date: Tue, 8 Jun 2010 08:44:32 +0200
Subject: watchdog: at32ap700x_wdt: register misc device last in probe()
 function

This patch reworks the probe() function in the at32ap700x_wdt driver, this to
make sure the miscdev is properly initialized and the driver is ready to be
accessed.

Reported-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Signed-off-by: Wim Van sebroeck <wim@iguana.be>

---
 drivers/watchdog/at32ap700x_wdt.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/watchdog/at32ap700x_wdt.c b/drivers/watchdog/at32ap700x_wdt.c
index 1cddf92cb9a6..750bc5281d79 100644
--- a/drivers/watchdog/at32ap700x_wdt.c
+++ b/drivers/watchdog/at32ap700x_wdt.c
@@ -346,9 +346,13 @@ static int __init at32_wdt_probe(struct platform_device *pdev)
 	} else {
 		wdt->users = 0;
 	}
-	wdt->miscdev.minor = WATCHDOG_MINOR;
-	wdt->miscdev.name = "watchdog";
-	wdt->miscdev.fops = &at32_wdt_fops;
+
+	wdt->miscdev.minor	= WATCHDOG_MINOR;
+	wdt->miscdev.name	= "watchdog";
+	wdt->miscdev.fops	= &at32_wdt_fops;
+	wdt->miscdev.parent	= &pdev->dev;
+
+	platform_set_drvdata(pdev, wdt);
 
 	if (at32_wdt_settimeout(timeout)) {
 		at32_wdt_settimeout(TIMEOUT_DEFAULT);
@@ -360,17 +364,17 @@ static int __init at32_wdt_probe(struct platform_device *pdev)
 	ret = misc_register(&wdt->miscdev);
 	if (ret) {
 		dev_dbg(&pdev->dev, "failed to register wdt miscdev\n");
-		goto err_iounmap;
+		goto err_register;
 	}
 
-	platform_set_drvdata(pdev, wdt);
-	wdt->miscdev.parent = &pdev->dev;
 	dev_info(&pdev->dev,
 		"AT32AP700X WDT at 0x%p, timeout %d sec (nowayout=%d)\n",
 		wdt->regs, wdt->timeout, nowayout);
 
 	return 0;
 
+err_register:
+	platform_set_drvdata(pdev, NULL);
 err_iounmap:
 	iounmap(wdt->regs);
 err_free:
-- 
cgit v1.2.3-55-g7522


From 720a3aeb7373cb49cf222d5f12e121f78d3d4410 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo
Date: Thu, 17 Jun 2010 08:37:44 -0300
Subject: perf session: Remove threads from tree on PERF_RECORD_EXIT

Move them to a session->dead_threads list just like we do with maps that
are replaced, because we may have hist_entries pointing to them.

This fixes a bug when inserting maps for a new thread that reused the
TID, mixing maps for two different threads, causing an endless loop.

The code for insering maps should be made more robust but for .35 this
is the minimalistic patch.

Reported-by: Ingo Molnar <mingo@elte.hu>
Cc: David S. Miller <davem@davemloft.net>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/event.c   |  4 +++-
 tools/perf/util/session.c | 11 +++++++++++
 tools/perf/util/session.h |  2 ++
 tools/perf/util/thread.h  |  5 ++++-
 4 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 1f08f008d289..2fbf6a463c81 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -538,8 +538,10 @@ int event__process_task(event_t *self, struct perf_session *session)
 	dump_printf("(%d:%d):(%d:%d)\n", self->fork.pid, self->fork.tid,
 		    self->fork.ppid, self->fork.ptid);
 
-	if (self->header.type == PERF_RECORD_EXIT)
+	if (self->header.type == PERF_RECORD_EXIT) {
+		perf_session__remove_thread(session, thread);
 		return 0;
+	}
 
 	if (thread == NULL || parent == NULL ||
 	    thread__fork(thread, parent) < 0) {
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 8f83a1835766..c422cd676313 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -90,6 +90,7 @@ struct perf_session *perf_session__new(const char *filename, int mode, bool forc
 
 	memcpy(self->filename, filename, len);
 	self->threads = RB_ROOT;
+	INIT_LIST_HEAD(&self->dead_threads);
 	self->hists_tree = RB_ROOT;
 	self->last_match = NULL;
 	self->mmap_window = 32;
@@ -131,6 +132,16 @@ void perf_session__delete(struct perf_session *self)
 	free(self);
 }
 
+void perf_session__remove_thread(struct perf_session *self, struct thread *th)
+{
+	rb_erase(&th->rb_node, &self->threads);
+	/*
+	 * We may have references to this thread, for instance in some hist_entry
+	 * instances, so just move them to a separate list.
+	 */
+	list_add_tail(&th->node, &self->dead_threads);
+}
+
 static bool symbol__match_parent_regex(struct symbol *sym)
 {
 	if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0))
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 55c6881b218d..9fa0fc2a863f 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -26,6 +26,7 @@ struct perf_session {
 	unsigned long		size;
 	unsigned long		mmap_window;
 	struct rb_root		threads;
+	struct list_head	dead_threads;
 	struct thread		*last_match;
 	struct machine		host_machine;
 	struct rb_root		machines;
@@ -99,6 +100,7 @@ int perf_session__create_kernel_maps(struct perf_session *self);
 
 int do_read(int fd, void *buf, size_t size);
 void perf_session__update_sample_type(struct perf_session *self);
+void perf_session__remove_thread(struct perf_session *self, struct thread *th);
 
 static inline
 struct machine *perf_session__find_host_machine(struct perf_session *self)
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 1dfd9ff8bdcd..ee6bbcf277ca 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -6,7 +6,10 @@
 #include "symbol.h"
 
 struct thread {
-	struct rb_node		rb_node;
+	union {
+		struct rb_node	 rb_node;
+		struct list_head node;
+	};
 	struct map_groups	mg;
 	pid_t			pid;
 	char			shortname[3];
-- 
cgit v1.2.3-55-g7522


From aabef8b240880439b91574c9a9e33dcc44bfd8c7 Mon Sep 17 00:00:00 2001
From: FUJITA Tomonori
Date: Thu, 17 Jun 2010 08:56:05 -0700
Subject: bnx2: fix dma_get_ops compilation breakage

This removes dma_get_ops() prefetch optimization in bnx2.

bnx2 uses dma_get_ops() to see if dma_sync_single_for_cpu() is
noop. bnx2 does prefetch if it's noop.

But dma_get_ops() isn't available on all the architectures (only the
architectures that uses dma_map_ops struct have it). Using
dma_get_ops() in drivers leads to compilation breakage on many
architectures.

This patch removes dma_get_ops() and changes bnx2 to do prefetch on
all the architectures. This adds useless prefetch on non-coherent
architectures but this is harmless. It is also unlikely to cause the
performance drop.

[ Remove now unused local variable 'pdev' -DaveM ]

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bnx2.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 949d7a9dcf92..117432222a09 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -3073,7 +3073,6 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
 	u16 hw_cons, sw_cons, sw_ring_cons, sw_prod, sw_ring_prod;
 	struct l2_fhdr *rx_hdr;
 	int rx_pkt = 0, pg_ring_used = 0;
-	struct pci_dev *pdev = bp->pdev;
 
 	hw_cons = bnx2_get_hw_rx_cons(bnapi);
 	sw_cons = rxr->rx_cons;
@@ -3099,12 +3098,10 @@ bnx2_rx_int(struct bnx2 *bp, struct bnx2_napi *bnapi, int budget)
 		skb = rx_buf->skb;
 		prefetchw(skb);
 
-		if (!get_dma_ops(&pdev->dev)->sync_single_for_cpu) {
-			next_rx_buf =
-				&rxr->rx_buf_ring[
-					RX_RING_IDX(NEXT_RX_BD(sw_cons))];
-			prefetch(next_rx_buf->desc);
-		}
+		next_rx_buf =
+			&rxr->rx_buf_ring[RX_RING_IDX(NEXT_RX_BD(sw_cons))];
+		prefetch(next_rx_buf->desc);
+
 		rx_buf->skb = NULL;
 
 		dma_addr = dma_unmap_addr(rx_buf, mapping);
-- 
cgit v1.2.3-55-g7522


From cb1cb1780f2025a7d612de09131bf6530f80fb1a Mon Sep 17 00:00:00 2001
From: Rafael J. Wysocki
Date: Thu, 17 Jun 2010 17:40:57 +0200
Subject: ACPI / PM: Do not enable GPEs for system wakeup in advance

After commit 9630bdd9b15d2f489c646d8bc04b60e53eb5ec78
(ACPI: Use GPE reference counting to support shared GPEs) the wakeup
enable mask bits of GPEs are set as soon as the GPEs are enabled to
wake up the system.  Unfortunately, this leads to a regression
reported by Michal Hocko, where a system is woken up from ACPI S5 by
a device that is not supposed to do that, because the wakeup enable
mask bit of this device's GPE is always set when
acpi_enter_sleep_state() calls acpi_hw_enable_all_wakeup_gpes(),
although it should only be set if the device is supposed to wake up
the system from the target state.

To work around this issue, rework the ACPI power management code so
that GPEs are not enabled to wake up the system upfront, but only
during a system state transition when the target state of the system
is known.  [Of course, this means that the reference counting of
"wakeup" GPEs doesn't really make sense and it is sufficient to
set/unset the wakeup mask bits for them during system sleep
transitions.  This will allow us to simplify the GPE handling code
quite a bit, but that change is too intrusive for 2.6.35.]

Fixes https://bugzilla.kernel.org/show_bug.cgi?id=15951

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-and-tested-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
---
 drivers/acpi/button.c |  4 ++--
 drivers/acpi/wakeup.c | 20 +++++++-------------
 2 files changed, 9 insertions(+), 15 deletions(-)

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index fd51c4ab4829..7d857dabdde4 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -425,7 +425,7 @@ static int acpi_button_add(struct acpi_device *device)
 		/* Button's GPE is run-wake GPE */
 		acpi_enable_gpe(device->wakeup.gpe_device,
 				device->wakeup.gpe_number,
-				ACPI_GPE_TYPE_WAKE_RUN);
+				ACPI_GPE_TYPE_RUNTIME);
 		device->wakeup.run_wake_count++;
 		device->wakeup.state.enabled = 1;
 	}
@@ -449,7 +449,7 @@ static int acpi_button_remove(struct acpi_device *device, int type)
 	if (device->wakeup.flags.valid) {
 		acpi_disable_gpe(device->wakeup.gpe_device,
 				device->wakeup.gpe_number,
-				ACPI_GPE_TYPE_WAKE_RUN);
+				ACPI_GPE_TYPE_RUNTIME);
 		device->wakeup.run_wake_count--;
 		device->wakeup.state.enabled = 0;
 	}
diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c
index 4b9d339a6e28..388747a7ef4f 100644
--- a/drivers/acpi/wakeup.c
+++ b/drivers/acpi/wakeup.c
@@ -64,16 +64,13 @@ void acpi_enable_wakeup_device(u8 sleep_state)
 		struct acpi_device *dev =
 			container_of(node, struct acpi_device, wakeup_list);
 
-		if (!dev->wakeup.flags.valid)
-			continue;
-
-		if ((!dev->wakeup.state.enabled && !dev->wakeup.prepare_count)
+		if (!dev->wakeup.flags.valid || !dev->wakeup.state.enabled
 		    || sleep_state > (u32) dev->wakeup.sleep_state)
 			continue;
 
 		/* The wake-up power should have been enabled already. */
-		acpi_set_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
-				ACPI_GPE_ENABLE);
+		acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
+				ACPI_GPE_TYPE_WAKE);
 	}
 }
 
@@ -96,6 +93,8 @@ void acpi_disable_wakeup_device(u8 sleep_state)
 		    || (sleep_state > (u32) dev->wakeup.sleep_state))
 			continue;
 
+		acpi_disable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
+				ACPI_GPE_TYPE_WAKE);
 		acpi_disable_wakeup_device_power(dev);
 	}
 }
@@ -109,13 +108,8 @@ int __init acpi_wakeup_device_init(void)
 		struct acpi_device *dev = container_of(node,
 						       struct acpi_device,
 						       wakeup_list);
-		/* In case user doesn't load button driver */
-		if (!dev->wakeup.flags.always_enabled ||
-		    dev->wakeup.state.enabled)
-			continue;
- 		acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number,
- 				ACPI_GPE_TYPE_WAKE);
-		dev->wakeup.state.enabled = 1;
+		if (dev->wakeup.flags.always_enabled)
+			dev->wakeup.state.enabled = 1;
 	}
 	mutex_unlock(&acpi_device_lock);
 	return 0;
-- 
cgit v1.2.3-55-g7522


From 5ffc88819c84098e3f39185a38f8f7f7f8b210df Mon Sep 17 00:00:00 2001
From: Ian Munsie
Date: Wed, 9 Jun 2010 18:38:00 +1000
Subject: perf record: prevent kill(0, SIGTERM);

At exit, perf record will kill the process it was profiling by sending a
SIGTERM to child_pid (if it had been initialised), but in certain situations
child_pid may be 0 and perf would mistakenly kill more processes than intended.

child_pid is set to the return of fork() to either 0 or the pid of the child.
Ordinarily this would not present an issue as the child calls execvp to spawn
the process to be profiled and would therefore never run it's sig_atexit and
never attempt to kill pid 0.

However, if a nonexistant binary had been passed in to perf record the call to
execvp would fail and child_pid would be left set to 0. The child would then
exit and it's atexit handler, finding that child_pid was initialised to 0,
would call kill(0, SIGTERM), resulting in every process within it's process
group being killed.

In the case that perf was being run directly from the shell this typically
would not be an issue as the shell isolates the process.  However, if perf was
being called from another program it could kill unexpected processes, which may
even include X.

This patch changes the logic of the test for whether child_pid was initialised
to only consider positive pids as valid, thereby never attempting to kill pid
0.

Cc: David S. Miller <davem@davemloft.net>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <1276072680-17378-1-git-send-email-imunsie@au1.ibm.com>
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-record.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index dc3435e18bde..711745f56bba 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -193,7 +193,7 @@ static void sig_handler(int sig)
 
 static void sig_atexit(void)
 {
-	if (child_pid != -1)
+	if (child_pid > 0)
 		kill(child_pid, SIGTERM);
 
 	if (signr == -1)
-- 
cgit v1.2.3-55-g7522


From 3310d4d38fbc514e7b18bd3b1eea8effdd63b5aa Mon Sep 17 00:00:00 2001
From: Peter Zijlstra
Date: Thu, 17 Jun 2010 18:02:37 +0200
Subject: nohz: Fix nohz ratelimit

Chris Wedgwood reports that 39c0cbe (sched: Rate-limit nohz) causes a
serial console regression, unresponsiveness, and indeed it does. The
reason is that the nohz code is skipped even when the tick was already
stopped before the nohz_ratelimit(cpu) condition changed.

Move the nohz_ratelimit() check to the other conditions which prevent
long idle sleeps.

Reported-by: Chris Wedgwood <cw@f00f.org>
Tested-by: Brian Bloniarz <bmb@athenacr.com>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Greg KH <gregkh@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Jef Driesen <jefdriesen@telenet.be>
LKML-Reference: <1276790557.27822.516.camel@twins>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/time/tick-sched.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 1d7b9bc1c034..783fbadf2202 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -315,9 +315,6 @@ void tick_nohz_stop_sched_tick(int inidle)
 		goto end;
 	}
 
-	if (nohz_ratelimit(cpu))
-		goto end;
-
 	ts->idle_calls++;
 	/* Read jiffies and the time when jiffies were updated last */
 	do {
@@ -328,7 +325,7 @@ void tick_nohz_stop_sched_tick(int inidle)
 	} while (read_seqretry(&xtime_lock, seq));
 
 	if (rcu_needs_cpu(cpu) || printk_needs_cpu(cpu) ||
-	    arch_needs_cpu(cpu)) {
+	    arch_needs_cpu(cpu) || nohz_ratelimit(cpu)) {
 		next_jiffies = last_jiffies + 1;
 		delta_jiffies = 1;
 	} else {
-- 
cgit v1.2.3-55-g7522


From c10b61f0910466b4b99c266a7d76ac4390743fb5 Mon Sep 17 00:00:00 2001
From: Jeff Moyer
Date: Thu, 17 Jun 2010 10:19:11 -0400
Subject: cfq: Don't allow queue merges for queues that have no process
 references

Hi,

A user reported a kernel bug when running a particular program that did
the following:

created 32 threads
- each thread took a mutex, grabbed a global offset, added a buffer size
  to that offset, released the lock
- read from the given offset in the file
- created a new thread to do the same
- exited

The result is that cfq's close cooperator logic would trigger, as the
threads were issuing I/O within the mean seek distance of one another.
This workload managed to routinely trigger a use after free bug when
walking the list of merge candidates for a particular cfqq
(cfqq->new_cfqq).  The logic used for merging queues looks like this:

static void cfq_setup_merge(struct cfq_queue *cfqq, struct cfq_queue *new_cfqq)
{
	int process_refs, new_process_refs;
	struct cfq_queue *__cfqq;

	/* Avoid a circular list and skip interim queue merges */
	while ((__cfqq = new_cfqq->new_cfqq)) {
		if (__cfqq == cfqq)
			return;
		new_cfqq = __cfqq;
	}

	process_refs = cfqq_process_refs(cfqq);
	/*
	 * If the process for the cfqq has gone away, there is no
	 * sense in merging the queues.
	 */
	if (process_refs == 0)
		return;

	/*
	 * Merge in the direction of the lesser amount of work.
	 */
	new_process_refs = cfqq_process_refs(new_cfqq);
	if (new_process_refs >= process_refs) {
		cfqq->new_cfqq = new_cfqq;
		atomic_add(process_refs, &new_cfqq->ref);
	} else {
		new_cfqq->new_cfqq = cfqq;
		atomic_add(new_process_refs, &cfqq->ref);
	}
}

When a merge candidate is found, we add the process references for the
queue with less references to the queue with more.  The actual merging
of queues happens when a new request is issued for a given cfqq.  In the
case of the test program, it only does a single pread call to read in
1MB, so the actual merge never happens.

Normally, this is fine, as when the queue exits, we simply drop the
references we took on the other cfqqs in the merge chain:

	/*
	 * If this queue was scheduled to merge with another queue, be
	 * sure to drop the reference taken on that queue (and others in
	 * the merge chain).  See cfq_setup_merge and cfq_merge_cfqqs.
	 */
	__cfqq = cfqq->new_cfqq;
	while (__cfqq) {
		if (__cfqq == cfqq) {
			WARN(1, "cfqq->new_cfqq loop detected\n");
			break;
		}
		next = __cfqq->new_cfqq;
		cfq_put_queue(__cfqq);
		__cfqq = next;
	}

However, there is a hole in this logic.  Consider the following (and
keep in mind that each I/O keeps a reference to the cfqq):

q1->new_cfqq = q2   // q2 now has 2 process references
q3->new_cfqq = q2   // q2 now has 3 process references

// the process associated with q2 exits
// q2 now has 2 process references

// queue 1 exits, drops its reference on q2
// q2 now has 1 process reference

// q3 exits, so has 0 process references, and hence drops its references
// to q2, which leaves q2 also with 0 process references

q4 comes along and wants to merge with q3

q3->new_cfqq still points at q2!  We follow that link and end up at an
already freed cfqq.

So, the fix is to not follow a merge chain if the top-most queue does
not have a process reference, otherwise any queue in the chain could be
already freed.  I also changed the logic to disallow merging with a
queue that does not have any process references.  Previously, we did
this check for one of the merge candidates, but not the other.  That
doesn't really make sense.

Without the attached patch, my system would BUG within a couple of
seconds of running the reproducer program.  With the patch applied, my
system ran the program for over an hour without issues.

This addresses the following bugzilla:
    https://bugzilla.kernel.org/show_bug.cgi?id=16217

Thanks a ton to Phil Carns for providing the bug report and an excellent
reproducer.

[ Note for stable: this applies to 2.6.32/33/34 ].

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Reported-by: Phil Carns <carns@mcs.anl.gov>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 block/cfq-iosched.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 5ff4f4850e71..153f6277e5c8 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1986,6 +1986,15 @@ static void cfq_setup_merge(struct cfq_queue *cfqq, struct cfq_queue *new_cfqq)
 	int process_refs, new_process_refs;
 	struct cfq_queue *__cfqq;
 
+	/*
+	 * If there are no process references on the new_cfqq, then it is
+	 * unsafe to follow the ->new_cfqq chain as other cfqq's in the
+	 * chain may have dropped their last reference (not just their
+	 * last process reference).
+	 */
+	if (!cfqq_process_refs(new_cfqq))
+		return;
+
 	/* Avoid a circular list and skip interim queue merges */
 	while ((__cfqq = new_cfqq->new_cfqq)) {
 		if (__cfqq == cfqq)
@@ -1994,17 +2003,17 @@ static void cfq_setup_merge(struct cfq_queue *cfqq, struct cfq_queue *new_cfqq)
 	}
 
 	process_refs = cfqq_process_refs(cfqq);
+	new_process_refs = cfqq_process_refs(new_cfqq);
 	/*
 	 * If the process for the cfqq has gone away, there is no
 	 * sense in merging the queues.
 	 */
-	if (process_refs == 0)
+	if (process_refs == 0 || new_process_refs == 0)
 		return;
 
 	/*
 	 * Merge in the direction of the lesser amount of work.
 	 */
-	new_process_refs = cfqq_process_refs(new_cfqq);
 	if (new_process_refs >= process_refs) {
 		cfqq->new_cfqq = new_cfqq;
 		atomic_add(process_refs, &new_cfqq->ref);
-- 
cgit v1.2.3-55-g7522


From 25442e06d20aaba7d7b16438078a562b3e4cf19b Mon Sep 17 00:00:00 2001
From: stephen hemminger
Date: Tue, 15 Jun 2010 06:14:12 +0000
Subject: bridge: fdb cleanup runs too often

It is common in end-node, non STP bridges to set forwarding
delay to zero; which causes the forwarding database cleanup
to run every clock tick. Change to run only as soon as needed
or at next ageing timer interval which ever is sooner.

Use round_jiffies_up macro rather than attempting round up
by changing value.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_fdb.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 26637439965b..b01dde35a69e 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -128,7 +128,7 @@ void br_fdb_cleanup(unsigned long _data)
 {
 	struct net_bridge *br = (struct net_bridge *)_data;
 	unsigned long delay = hold_time(br);
-	unsigned long next_timer = jiffies + br->forward_delay;
+	unsigned long next_timer = jiffies + br->ageing_time;
 	int i;
 
 	spin_lock_bh(&br->hash_lock);
@@ -149,9 +149,7 @@ void br_fdb_cleanup(unsigned long _data)
 	}
 	spin_unlock_bh(&br->hash_lock);
 
-	/* Add HZ/4 to ensure we round the jiffies upwards to be after the next
-	 * timer, otherwise we might round down and will have no-op run. */
-	mod_timer(&br->gc_timer, round_jiffies(next_timer + HZ/4));
+	mod_timer(&br->gc_timer, round_jiffies_up(next_timer));
 }
 
 /* Completely flush all dynamic entries in forwarding database.*/
-- 
cgit v1.2.3-55-g7522


From 3c93717cfa51316e4dbb471e7c0f9d243359d5f8 Mon Sep 17 00:00:00 2001
From: Alex,Shi
Date: Thu, 17 Jun 2010 14:08:13 +0800
Subject: sched: Fix over-scheduling bug

Commit e70971591 ("sched: Optimize unused cgroup configuration") introduced
an imbalanced scheduling bug.

If we do not use CGROUP, function update_h_load won't update h_load. When the
system has a large number of tasks far more than logical CPU number, the
incorrect cfs_rq[cpu]->h_load value will cause load_balance() to pull too
many tasks to the local CPU from the busiest CPU. So the busiest CPU keeps
going in a round robin. That will hurt performance.

The issue was found originally by a scientific calculation workload that
developed by Yanmin. With that commit, the workload performance drops
about 40%.

 CPU  before    after

 00   : 2       : 7
 01   : 1       : 7
 02   : 11      : 6
 03   : 12      : 7
 04   : 6       : 6
 05   : 11      : 7
 06   : 10      : 6
 07   : 12      : 7
 08   : 11      : 6
 09   : 12      : 6
 10   : 1       : 6
 11   : 1       : 6
 12   : 6       : 6
 13   : 2       : 6
 14   : 2       : 6
 15   : 1       : 6

Reviewed-by: Yanmin zhang <yanmin.zhang@intel.com>
Signed-off-by: Alex Shi <alex.shi@intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1276754893.9452.5442.camel@debian>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 kernel/sched.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 2aaceebd484c..6c9e7c8735bf 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1657,9 +1657,6 @@ static void update_shares(struct sched_domain *sd)
 
 static void update_h_load(long cpu)
 {
-	if (root_task_group_empty())
-		return;
-
 	walk_tg_tree(tg_load_down, tg_nop, (void *)cpu);
 }
 
-- 
cgit v1.2.3-55-g7522


From 09155120cf0ffe6f0c8aba3aa625831405b65996 Mon Sep 17 00:00:00 2001
From: Michal Marek
Date: Thu, 17 Jun 2010 15:14:58 +0200
Subject: kbuild: Clean up and speed up the localversion logic

Now that we run scripts/setlocalversion during every build, it makes
sense to move all the localversion logic there. This cleans up the
toplevel Makefile and also makes sure that the script is called only
once in 'make prepare' (previously, it would be called every time due to
a variable expansion in an ifneq statement). No user-visible change is
intended, unless one runs the setlocalversion script directly.

Reported-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Nico Schottelius <nico-linuxsetlocalversion@schottelius.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 Makefile                 |  74 +-------------------
 scripts/package/Makefile |   2 +-
 scripts/setlocalversion  | 179 ++++++++++++++++++++++++++++++++++-------------
 3 files changed, 136 insertions(+), 119 deletions(-)

diff --git a/Makefile b/Makefile
index ea5f0bee1934..a86ac8c4798e 100644
--- a/Makefile
+++ b/Makefile
@@ -883,80 +883,12 @@ PHONY += $(vmlinux-dirs)
 $(vmlinux-dirs): prepare scripts
 	$(Q)$(MAKE) $(build)=$@
 
-# Build the kernel release string
-#
-# The KERNELRELEASE value built here is stored in the file
-# include/config/kernel.release, and is used when executing several
-# make targets, such as "make install" or "make modules_install."
-#
-# The eventual kernel release string consists of the following fields,
-# shown in a hierarchical format to show how smaller parts are concatenated
-# to form the larger and final value, with values coming from places like
-# the Makefile, kernel config options, make command line options and/or
-# SCM tag information.
-#
-#	$(KERNELVERSION)
-#	  $(VERSION)			eg, 2
-#	  $(PATCHLEVEL)			eg, 6
-#	  $(SUBLEVEL)			eg, 18
-#	  $(EXTRAVERSION)		eg, -rc6
-#	$(localver-full)
-#	  $(localver)
-#	    localversion*		(files without backups, containing '~')
-#	    $(CONFIG_LOCALVERSION)	(from kernel config setting)
-#	  $(LOCALVERSION)		(from make command line, if provided)
-#	  $(localver-extra)
-#	    $(scm-identifier)		(unique SCM tag, if one exists)
-#	      ./scripts/setlocalversion	(only with CONFIG_LOCALVERSION_AUTO)
-#	      .scmversion		(only with CONFIG_LOCALVERSION_AUTO)
-#	    +				(only without CONFIG_LOCALVERSION_AUTO
-#					 and without LOCALVERSION= and
-#					 repository is at non-tagged commit)
-#
-# For kernels without CONFIG_LOCALVERSION_AUTO compiled from an SCM that has
-# been revised beyond a tagged commit, `+' is appended to the version string
-# when not overridden by using "make LOCALVERSION=".  This indicates that the
-# kernel is not a vanilla release version and has been modified.
-
-pattern = ".*/localversion[^~]*"
-string  = $(shell cat /dev/null \
-	   `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`)
-
-localver = $(subst $(space),, $(string) \
-			      $(patsubst "%",%,$(CONFIG_LOCALVERSION)))
-
-# scripts/setlocalversion is called to create a unique identifier if the source
-# is managed by a known SCM and the repository has been revised since the last
-# tagged (release) commit.  The format of the identifier is determined by the
-# SCM's implementation.
-#
-# .scmversion is used when generating rpm packages so we do not loose
-# the version information from the SCM when we do the build of the kernel
-# from the copied source
-ifeq ($(wildcard .scmversion),)
-        scm-identifier = $(shell $(CONFIG_SHELL) \
-                         $(srctree)/scripts/setlocalversion $(srctree))
-else
-        scm-identifier = $(shell cat .scmversion 2> /dev/null)
-endif
-
-ifdef CONFIG_LOCALVERSION_AUTO
-	localver-extra = $(scm-identifier)
-else
-	ifneq ($(scm-identifier),)
-		ifeq ($(LOCALVERSION),)
-			localver-extra = +
-		endif
-	endif
-endif
-
-localver-full = $(localver)$(LOCALVERSION)$(localver-extra)
-
 # Store (new) KERNELRELASE string in include/config/kernel.release
-kernelrelease = $(KERNELVERSION)$(localver-full)
+localversion = $(shell $(CONFIG_SHELL) \
+	       $(srctree)/scripts/setlocalversion $(srctree))
 include/config/kernel.release: include/config/auto.conf FORCE
 	$(Q)rm -f $@
-	$(Q)echo $(kernelrelease) > $@
+	$(Q)echo $(KERNELVERSION)$(localversion) > $@
 
 
 # Things we need to do before we recursively start building the kernel
diff --git a/scripts/package/Makefile b/scripts/package/Makefile
index 62fcc3a7f4d3..3a681ef25306 100644
--- a/scripts/package/Makefile
+++ b/scripts/package/Makefile
@@ -44,7 +44,7 @@ rpm-pkg rpm: $(objtree)/kernel.spec FORCE
 	fi
 	$(MAKE) clean
 	$(PREV) ln -sf $(srctree) $(KERNELPATH)
-	$(CONFIG_SHELL) $(srctree)/scripts/setlocalversion > $(objtree)/.scmversion
+	$(CONFIG_SHELL) $(srctree)/scripts/setlocalversion --scm-only > $(objtree)/.scmversion
 	$(PREV) tar -cz $(RCS_TAR_IGNORE) -f $(KERNELPATH).tar.gz $(KERNELPATH)/.
 	$(PREV) rm $(KERNELPATH)
 	rm -f $(objtree)/.scmversion
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 46989b88d734..d6a866ed1835 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -10,73 +10,158 @@
 #
 
 usage() {
-	echo "Usage: $0 [srctree]" >&2
+	echo "Usage: $0 [--scm-only] [srctree]" >&2
 	exit 1
 }
 
-cd "${1:-.}" || usage
+scm_only=false
+srctree=.
+if test "$1" = "--scm-only"; then
+	scm_only=true
+	shift
+fi
+if test $# -gt 0; then
+	srctree=$1
+	shift
+fi
+if test $# -gt 0 -o ! -d "$srctree"; then
+	usage
+fi
 
-# Check for git and a git repo.
-if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
+scm_version()
+{
+	local short=false
 
-	# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore it,
-	# because this version is defined in the top level Makefile.
-	if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
+	cd "$srctree"
+	if test -e .scmversion; then
+		cat "$_"
+		return
+	fi
+	if test "$1" = "--short"; then
+		short=true
+	fi
 
-		# If we are past a tagged commit (like "v2.6.30-rc5-302-g72357d5"),
-		# we pretty print it.
-		if atag="`git describe 2>/dev/null`"; then
-			echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
+	# Check for git and a git repo.
+	if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
+
+		# If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
+		# it, because this version is defined in the top level Makefile.
+		if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
+
+			# If only the short version is requested, don't bother
+			# running further git commands
+			if $short; then
+				echo "+"
+				return
+			fi
+			# If we are past a tagged commit (like
+			# "v2.6.30-rc5-302-g72357d5"), we pretty print it.
+			if atag="`git describe 2>/dev/null`"; then
+				echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
+
+			# If we don't have a tag at all we print -g{commitish}.
+			else
+				printf '%s%s' -g $head
+			fi
+		fi
 
-		# If we don't have a tag at all we print -g{commitish}.
-		else
-			printf '%s%s' -g $head
+		# Is this git on svn?
+		if git config --get svn-remote.svn.url >/dev/null; then
+			printf -- '-svn%s' "`git svn find-rev $head`"
 		fi
-	fi
 
-	# Is this git on svn?
-	if git config --get svn-remote.svn.url >/dev/null; then
-	        printf -- '-svn%s' "`git svn find-rev $head`"
-	fi
+		# Update index only on r/w media
+		[ -w . ] && git update-index --refresh --unmerged > /dev/null
 
-	# Update index only on r/w media
-	[ -w . ] && git update-index --refresh --unmerged > /dev/null
+		# Check for uncommitted changes
+		if git diff-index --name-only HEAD | grep -v "^scripts/package" \
+		    | read dummy; then
+			printf '%s' -dirty
+		fi
 
-	# Check for uncommitted changes
-	if git diff-index --name-only HEAD | grep -v "^scripts/package" \
-	    | read dummy; then
-		printf '%s' -dirty
+		# All done with git
+		return
 	fi
 
-	# All done with git
-	exit
-fi
+	# Check for mercurial and a mercurial repo.
+	if hgid=`hg id 2>/dev/null`; then
+		tag=`printf '%s' "$hgid" | cut -d' ' -f2`
+
+		# Do we have an untagged version?
+		if [ -z "$tag" -o "$tag" = tip ]; then
+			id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
+			printf '%s%s' -hg "$id"
+		fi
 
-# Check for mercurial and a mercurial repo.
-if hgid=`hg id 2>/dev/null`; then
-	tag=`printf '%s' "$hgid" | cut -d' ' -f2`
+		# Are there uncommitted changes?
+		# These are represented by + after the changeset id.
+		case "$hgid" in
+			*+|*+\ *) printf '%s' -dirty ;;
+		esac
 
-	# Do we have an untagged version?
-	if [ -z "$tag" -o "$tag" = tip ]; then
-		id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
-		printf '%s%s' -hg "$id"
+		# All done with mercurial
+		return
 	fi
 
-	# Are there uncommitted changes?
-	# These are represented by + after the changeset id.
-	case "$hgid" in
-		*+|*+\ *) printf '%s' -dirty ;;
-	esac
+	# Check for svn and a svn repo.
+	if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
+		rev=`echo $rev | awk '{print $NF}'`
+		printf -- '-svn%s' "$rev"
 
-	# All done with mercurial
+		# All done with svn
+		return
+	fi
+}
+
+collect_files()
+{
+	local file res
+
+	for file; do
+		case "$file" in
+		*\~*)
+			continue
+			;;
+		esac
+		if test -e "$file"; then
+			res="$res$(cat "$file")"
+		fi
+	done
+	echo "$res"
+}
+
+if $scm_only; then
+	scm_version
 	exit
 fi
 
-# Check for svn and a svn repo.
-if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
-	rev=`echo $rev | awk '{print $NF}'`
-	printf -- '-svn%s' "$rev"
+if test -e include/config/auto.conf; then
+	source "$_"
+else
+	echo "Error: kernelrelease not valid - run 'make prepare' to update it"
+	exit 1
+fi
 
-	# All done with svn
-	exit
+# localversion* files in the build and source directory
+res="$(collect_files localversion*)"
+if test ! "$srctree" -ef .; then
+	res="$res$(collect_files "$srctree"/localversion*)"
+fi
+
+# CONFIG_LOCALVERSION and LOCALVERSION (if set)
+res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
+
+# scm version string if not at a tagged commit
+if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
+	# full scm version string
+	res="$res$(scm_version)"
+else
+	# apped a plus sign if the repository is not in a clean tagged
+	# state and  LOCALVERSION= is not specified
+	if test "${LOCALVERSION+set}" != "set"; then
+		scm=$(scm_version --short)
+		res="$res${scm:++}"
+	fi
 fi
+
+echo "$res"
-- 
cgit v1.2.3-55-g7522


From 9983b6f0cf8263e51bcf4c8a9dc0c1ef175b3c60 Mon Sep 17 00:00:00 2001
From: Tejun Heo
Date: Fri, 18 Jun 2010 11:44:31 +0200
Subject: percpu: fix first chunk match in per_cpu_ptr_to_phys()

per_cpu_ptr_to_phys() determines whether the passed in @addr belongs
to the first_chunk or not by just matching the address against the
address range of the base unit (unit0, used by cpu0).  When an adress
from another cpu was passed in, it will always determine that the
address doesn't belong to the first chunk even when it does.  This
makes the function return a bogus physical address which may lead to
crash.

This problem was discovered by Cliff Wickman while investigating a
crash during kdump on a SGI UV system.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Cliff Wickman <cpw@sgi.com>
Tested-by: Cliff Wickman <cpw@sgi.com>
Cc: stable@kernel.org
---
 mm/percpu.c | 31 ++++++++++++++++++++++++++++---
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/mm/percpu.c b/mm/percpu.c
index 46485e1b26fc..6470e7710231 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -229,8 +229,8 @@ static int __maybe_unused pcpu_page_idx(unsigned int cpu, int page_idx)
 	return pcpu_unit_map[cpu] * pcpu_unit_pages + page_idx;
 }
 
-static unsigned long __maybe_unused pcpu_chunk_addr(struct pcpu_chunk *chunk,
-						unsigned int cpu, int page_idx)
+static unsigned long pcpu_chunk_addr(struct pcpu_chunk *chunk,
+				     unsigned int cpu, int page_idx)
 {
 	return (unsigned long)chunk->base_addr + pcpu_unit_offsets[cpu] +
 		(page_idx << PAGE_SHIFT);
@@ -978,7 +978,32 @@ bool is_kernel_percpu_address(unsigned long addr)
  */
 phys_addr_t per_cpu_ptr_to_phys(void *addr)
 {
-	if (pcpu_addr_in_first_chunk(addr)) {
+	void __percpu *base = __addr_to_pcpu_ptr(pcpu_base_addr);
+	bool in_first_chunk = false;
+	unsigned long first_start, first_end;
+	unsigned int cpu;
+
+	/*
+	 * The following test on first_start/end isn't strictly
+	 * necessary but will speed up lookups of addresses which
+	 * aren't in the first chunk.
+	 */
+	first_start = pcpu_chunk_addr(pcpu_first_chunk, pcpu_first_unit_cpu, 0);
+	first_end = pcpu_chunk_addr(pcpu_first_chunk, pcpu_last_unit_cpu,
+				    pcpu_unit_pages);
+	if ((unsigned long)addr >= first_start &&
+	    (unsigned long)addr < first_end) {
+		for_each_possible_cpu(cpu) {
+			void *start = per_cpu_ptr(base, cpu);
+
+			if (addr >= start && addr < start + pcpu_unit_size) {
+				in_first_chunk = true;
+				break;
+			}
+		}
+	}
+
+	if (in_first_chunk) {
 		if ((unsigned long)addr < VMALLOC_START ||
 		    (unsigned long)addr >= VMALLOC_END)
 			return __pa(addr);
-- 
cgit v1.2.3-55-g7522


From b27759f880018b0cd43543dc94c921341b64b5ec Mon Sep 17 00:00:00 2001
From: Rafael J. Wysocki
Date: Fri, 18 Jun 2010 17:04:22 +0200
Subject: PCI/PM: Do not use native PCIe PME by default

Commit c7f486567c1d0acd2e4166c47069835b9f75e77b
(PCI PM: PCIe PME root port service driver) causes the native PCIe
PME signaling to be used by default, if the BIOS allows the kernel to
control the standard configuration registers of PCIe root ports.
However, the native PCIe PME is coupled to the native PCIe hotplug
and calling pcie_pme_acpi_setup() makes some BIOSes expect that
the native PCIe hotplug will be used as well.  That, in turn, causes
problems to appear on systems where the PCIe hotplug driver is not
loaded.  The usual symptom, as reported by Jaroslav Kameník and
others, is that the ACPI GPE associated with PCIe hotplug keeps
firing continuously causing kacpid to take substantial percentage
of CPU time.

To work around this issue, change the default so that the native
PCIe PME signaling is only used if directly requested with the help
of the pcie_pme= command line switch.

Fixes https://bugzilla.kernel.org/show_bug.cgi?id=15924 , which is
a listed regression from 2.6.33.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-by: Jaroslav Kameník <jaroslav@kamenik.cz>
Tested-by: Antoni Grzymala <antekgrzymala@gmail.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---
 Documentation/kernel-parameters.txt |  4 +++-
 drivers/pci/pcie/pme/pcie_pme.c     | 19 +++++++++++++------
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 1808f1157f30..82d6aeb5228f 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2048,7 +2048,9 @@ and is between 256 and 4096 characters. It is defined in the file
 			WARNING: Forcing ASPM on may cause system lockups.
 
 	pcie_pme=	[PCIE,PM] Native PCIe PME signaling options:
-		off	Do not use native PCIe PME signaling.
+			Format: {auto|force}[,nomsi]
+		auto	Use native PCIe PME signaling if the BIOS allows the
+			kernel to control PCIe config registers of root ports.
 		force	Use native PCIe PME signaling even if the BIOS refuses
 			to allow the kernel to control the relevant PCIe config
 			registers.
diff --git a/drivers/pci/pcie/pme/pcie_pme.c b/drivers/pci/pcie/pme/pcie_pme.c
index aac285a16b62..d672a0a63816 100644
--- a/drivers/pci/pcie/pme/pcie_pme.c
+++ b/drivers/pci/pcie/pme/pcie_pme.c
@@ -34,7 +34,7 @@
  * being registered.  Consequently, the interrupt-based PCIe PME signaling will
  * not be used by any PCIe root ports in that case.
  */
-static bool pcie_pme_disabled;
+static bool pcie_pme_disabled = true;
 
 /*
  * The PCI Express Base Specification 2.0, Section 6.1.8, states the following:
@@ -64,12 +64,19 @@ bool pcie_pme_msi_disabled;
 
 static int __init pcie_pme_setup(char *str)
 {
-	if (!strcmp(str, "off"))
-		pcie_pme_disabled = true;
-	else if (!strcmp(str, "force"))
+	if (!strncmp(str, "auto", 4))
+		pcie_pme_disabled = false;
+	else if (!strncmp(str, "force", 5))
 		pcie_pme_force_enable = true;
-	else if (!strcmp(str, "nomsi"))
-		pcie_pme_msi_disabled = true;
+
+	str = strchr(str, ',');
+	if (str) {
+		str++;
+		str += strspn(str, " \t");
+		if (*str && !strcmp(str, "nomsi"))
+			pcie_pme_msi_disabled = true;
+	}
+
 	return 1;
 }
 __setup("pcie_pme=", pcie_pme_setup);
-- 
cgit v1.2.3-55-g7522


From e98ef89b30b8a2e882b11d4965347015770f3627 Mon Sep 17 00:00:00 2001
From: Vivek Goyal
Date: Fri, 18 Jun 2010 10:39:47 -0400
Subject: cfq-iosched: Fixed boot warning with BLK_CGROUP=y and
 CFQ_GROUP_IOSCHED=n

Hi Jens,

Few days back Ingo noticed a CFQ boot time warning. This patch fixes it.
The issue here is that with CFQ_GROUP_IOSCHED=n, CFQ should not really
be making blkio stat related calls.

> Hm, it's still not entirely fixed, as of 2.6.35-rc2-00131-g7908a9e. With
> some
> configs i get bad spinlock warnings during bootup:
>
> [   28.968013] initcall net_olddevs_init+0x0/0x82 returned 0 after 93750
> usecs
> [   28.972003] calling  b44_init+0x0/0x55 @ 1
> [   28.976009] bus: 'pci': add driver b44
> [   28.976374]  sda:
> [   28.978157] BUG: spinlock bad magic on CPU#1, async/0/117
> [   28.980000]  lock: 7e1c5bbc, .magic: 00000000, .owner: <none>/-1, +.owner_cpu: 0
> [   28.980000] Pid: 117, comm: async/0 Not tainted +2.6.35-rc2-tip-01092-g010e7ef-dirty #8183
> [   28.980000] Call Trace:
> [   28.980000]  [<41ba6d55>] ? printk+0x20/0x24
> [   28.980000]  [<4134b7b7>] spin_bug+0x7c/0x87
> [   28.980000]  [<4134b853>] do_raw_spin_lock+0x1e/0x123
> [   28.980000]  [<41ba92ca>] ? _raw_spin_lock_irqsave+0x12/0x20
> [   28.980000]  [<41ba92d2>] _raw_spin_lock_irqsave+0x1a/0x20
> [   28.980000]  [<4133476f>] blkiocg_update_io_add_stats+0x25/0xfb
> [   28.980000]  [<41335dae>] ? cfq_prio_tree_add+0xb1/0xc1
> [   28.980000]  [<41337bc7>] cfq_insert_request+0x8c/0x425

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 block/cfq-iosched.c |  54 ++++++++++++------------
 block/cfq.h         | 115 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 142 insertions(+), 27 deletions(-)
 create mode 100644 block/cfq.h

diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 153f6277e5c8..7982b830db58 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -14,7 +14,7 @@
 #include <linux/rbtree.h>
 #include <linux/ioprio.h>
 #include <linux/blktrace_api.h>
-#include "blk-cgroup.h"
+#include "cfq.h"
 
 /*
  * tunables
@@ -879,7 +879,7 @@ cfq_group_service_tree_del(struct cfq_data *cfqd, struct cfq_group *cfqg)
 	if (!RB_EMPTY_NODE(&cfqg->rb_node))
 		cfq_rb_erase(&cfqg->rb_node, st);
 	cfqg->saved_workload_slice = 0;
-	blkiocg_update_dequeue_stats(&cfqg->blkg, 1);
+	cfq_blkiocg_update_dequeue_stats(&cfqg->blkg, 1);
 }
 
 static inline unsigned int cfq_cfqq_slice_usage(struct cfq_queue *cfqq)
@@ -939,8 +939,8 @@ static void cfq_group_served(struct cfq_data *cfqd, struct cfq_group *cfqg,
 
 	cfq_log_cfqg(cfqd, cfqg, "served: vt=%llu min_vt=%llu", cfqg->vdisktime,
 					st->min_vdisktime);
-	blkiocg_update_timeslice_used(&cfqg->blkg, used_sl);
-	blkiocg_set_start_empty_time(&cfqg->blkg);
+	cfq_blkiocg_update_timeslice_used(&cfqg->blkg, used_sl);
+	cfq_blkiocg_set_start_empty_time(&cfqg->blkg);
 }
 
 #ifdef CONFIG_CFQ_GROUP_IOSCHED
@@ -995,7 +995,7 @@ cfq_find_alloc_cfqg(struct cfq_data *cfqd, struct cgroup *cgroup, int create)
 
 	/* Add group onto cgroup list */
 	sscanf(dev_name(bdi->dev), "%u:%u", &major, &minor);
-	blkiocg_add_blkio_group(blkcg, &cfqg->blkg, (void *)cfqd,
+	cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg, (void *)cfqd,
 					MKDEV(major, minor));
 	cfqg->weight = blkcg_get_weight(blkcg, cfqg->blkg.dev);
 
@@ -1079,7 +1079,7 @@ static void cfq_release_cfq_groups(struct cfq_data *cfqd)
 		 * it from cgroup list, then it will take care of destroying
 		 * cfqg also.
 		 */
-		if (!blkiocg_del_blkio_group(&cfqg->blkg))
+		if (!cfq_blkiocg_del_blkio_group(&cfqg->blkg))
 			cfq_destroy_cfqg(cfqd, cfqg);
 	}
 }
@@ -1421,10 +1421,10 @@ static void cfq_reposition_rq_rb(struct cfq_queue *cfqq, struct request *rq)
 {
 	elv_rb_del(&cfqq->sort_list, rq);
 	cfqq->queued[rq_is_sync(rq)]--;
-	blkiocg_update_io_remove_stats(&(RQ_CFQG(rq))->blkg, rq_data_dir(rq),
-						rq_is_sync(rq));
+	cfq_blkiocg_update_io_remove_stats(&(RQ_CFQG(rq))->blkg,
+					rq_data_dir(rq), rq_is_sync(rq));
 	cfq_add_rq_rb(rq);
-	blkiocg_update_io_add_stats(&(RQ_CFQG(rq))->blkg,
+	cfq_blkiocg_update_io_add_stats(&(RQ_CFQG(rq))->blkg,
 			&cfqq->cfqd->serving_group->blkg, rq_data_dir(rq),
 			rq_is_sync(rq));
 }
@@ -1482,8 +1482,8 @@ static void cfq_remove_request(struct request *rq)
 	cfq_del_rq_rb(rq);
 
 	cfqq->cfqd->rq_queued--;
-	blkiocg_update_io_remove_stats(&(RQ_CFQG(rq))->blkg, rq_data_dir(rq),
-						rq_is_sync(rq));
+	cfq_blkiocg_update_io_remove_stats(&(RQ_CFQG(rq))->blkg,
+					rq_data_dir(rq), rq_is_sync(rq));
 	if (rq_is_meta(rq)) {
 		WARN_ON(!cfqq->meta_pending);
 		cfqq->meta_pending--;
@@ -1518,8 +1518,8 @@ static void cfq_merged_request(struct request_queue *q, struct request *req,
 static void cfq_bio_merged(struct request_queue *q, struct request *req,
 				struct bio *bio)
 {
-	blkiocg_update_io_merged_stats(&(RQ_CFQG(req))->blkg, bio_data_dir(bio),
-					cfq_bio_sync(bio));
+	cfq_blkiocg_update_io_merged_stats(&(RQ_CFQG(req))->blkg,
+					bio_data_dir(bio), cfq_bio_sync(bio));
 }
 
 static void
@@ -1539,8 +1539,8 @@ cfq_merged_requests(struct request_queue *q, struct request *rq,
 	if (cfqq->next_rq == next)
 		cfqq->next_rq = rq;
 	cfq_remove_request(next);
-	blkiocg_update_io_merged_stats(&(RQ_CFQG(rq))->blkg, rq_data_dir(next),
-					rq_is_sync(next));
+	cfq_blkiocg_update_io_merged_stats(&(RQ_CFQG(rq))->blkg,
+					rq_data_dir(next), rq_is_sync(next));
 }
 
 static int cfq_allow_merge(struct request_queue *q, struct request *rq,
@@ -1571,7 +1571,7 @@ static int cfq_allow_merge(struct request_queue *q, struct request *rq,
 static inline void cfq_del_timer(struct cfq_data *cfqd, struct cfq_queue *cfqq)
 {
 	del_timer(&cfqd->idle_slice_timer);
-	blkiocg_update_idle_time_stats(&cfqq->cfqg->blkg);
+	cfq_blkiocg_update_idle_time_stats(&cfqq->cfqg->blkg);
 }
 
 static void __cfq_set_active_queue(struct cfq_data *cfqd,
@@ -1580,7 +1580,7 @@ static void __cfq_set_active_queue(struct cfq_data *cfqd,
 	if (cfqq) {
 		cfq_log_cfqq(cfqd, cfqq, "set_active wl_prio:%d wl_type:%d",
 				cfqd->serving_prio, cfqd->serving_type);
-		blkiocg_update_avg_queue_size_stats(&cfqq->cfqg->blkg);
+		cfq_blkiocg_update_avg_queue_size_stats(&cfqq->cfqg->blkg);
 		cfqq->slice_start = 0;
 		cfqq->dispatch_start = jiffies;
 		cfqq->allocated_slice = 0;
@@ -1911,7 +1911,7 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd)
 	sl = cfqd->cfq_slice_idle;
 
 	mod_timer(&cfqd->idle_slice_timer, jiffies + sl);
-	blkiocg_update_set_idle_time_stats(&cfqq->cfqg->blkg);
+	cfq_blkiocg_update_set_idle_time_stats(&cfqq->cfqg->blkg);
 	cfq_log_cfqq(cfqd, cfqq, "arm_idle: %lu", sl);
 }
 
@@ -1931,7 +1931,7 @@ static void cfq_dispatch_insert(struct request_queue *q, struct request *rq)
 	elv_dispatch_sort(q, rq);
 
 	cfqd->rq_in_flight[cfq_cfqq_sync(cfqq)]++;
-	blkiocg_update_dispatch_stats(&cfqq->cfqg->blkg, blk_rq_bytes(rq),
+	cfq_blkiocg_update_dispatch_stats(&cfqq->cfqg->blkg, blk_rq_bytes(rq),
 					rq_data_dir(rq), rq_is_sync(rq));
 }
 
@@ -3257,7 +3257,7 @@ cfq_rq_enqueued(struct cfq_data *cfqd, struct cfq_queue *cfqq,
 				cfq_clear_cfqq_wait_request(cfqq);
 				__blk_run_queue(cfqd->queue);
 			} else {
-				blkiocg_update_idle_time_stats(
+				cfq_blkiocg_update_idle_time_stats(
 						&cfqq->cfqg->blkg);
 				cfq_mark_cfqq_must_dispatch(cfqq);
 			}
@@ -3285,7 +3285,7 @@ static void cfq_insert_request(struct request_queue *q, struct request *rq)
 	rq_set_fifo_time(rq, jiffies + cfqd->cfq_fifo_expire[rq_is_sync(rq)]);
 	list_add_tail(&rq->queuelist, &cfqq->fifo);
 	cfq_add_rq_rb(rq);
-	blkiocg_update_io_add_stats(&(RQ_CFQG(rq))->blkg,
+	cfq_blkiocg_update_io_add_stats(&(RQ_CFQG(rq))->blkg,
 			&cfqd->serving_group->blkg, rq_data_dir(rq),
 			rq_is_sync(rq));
 	cfq_rq_enqueued(cfqd, cfqq, rq);
@@ -3373,9 +3373,9 @@ static void cfq_completed_request(struct request_queue *q, struct request *rq)
 	WARN_ON(!cfqq->dispatched);
 	cfqd->rq_in_driver--;
 	cfqq->dispatched--;
-	blkiocg_update_completion_stats(&cfqq->cfqg->blkg, rq_start_time_ns(rq),
-			rq_io_start_time_ns(rq), rq_data_dir(rq),
-			rq_is_sync(rq));
+	cfq_blkiocg_update_completion_stats(&cfqq->cfqg->blkg,
+			rq_start_time_ns(rq), rq_io_start_time_ns(rq),
+			rq_data_dir(rq), rq_is_sync(rq));
 
 	cfqd->rq_in_flight[cfq_cfqq_sync(cfqq)]--;
 
@@ -3739,7 +3739,7 @@ static void cfq_exit_queue(struct elevator_queue *e)
 
 	cfq_put_async_queues(cfqd);
 	cfq_release_cfq_groups(cfqd);
-	blkiocg_del_blkio_group(&cfqd->root_group.blkg);
+	cfq_blkiocg_del_blkio_group(&cfqd->root_group.blkg);
 
 	spin_unlock_irq(q->queue_lock);
 
@@ -3807,8 +3807,8 @@ static void *cfq_init_queue(struct request_queue *q)
 	 */
 	atomic_set(&cfqg->ref, 1);
 	rcu_read_lock();
-	blkiocg_add_blkio_group(&blkio_root_cgroup, &cfqg->blkg, (void *)cfqd,
-					0);
+	cfq_blkiocg_add_blkio_group(&blkio_root_cgroup, &cfqg->blkg,
+					(void *)cfqd, 0);
 	rcu_read_unlock();
 #endif
 	/*
diff --git a/block/cfq.h b/block/cfq.h
new file mode 100644
index 000000000000..8783318dc5be
--- /dev/null
+++ b/block/cfq.h
@@ -0,0 +1,115 @@
+#ifndef _CFQ_H
+#define _CFQ_H
+#include "blk-cgroup.h"
+
+#ifdef CONFIG_CFQ_GROUP_IOSCHED
+static inline void cfq_blkiocg_update_io_add_stats(struct blkio_group *blkg,
+	struct blkio_group *curr_blkg, bool direction, bool sync)
+{
+	blkiocg_update_io_add_stats(blkg, curr_blkg, direction, sync);
+}
+
+static inline void cfq_blkiocg_update_dequeue_stats(struct blkio_group *blkg,
+			unsigned long dequeue)
+{
+	blkiocg_update_dequeue_stats(blkg, dequeue);
+}
+
+static inline void cfq_blkiocg_update_timeslice_used(struct blkio_group *blkg,
+			unsigned long time)
+{
+	blkiocg_update_timeslice_used(blkg, time);
+}
+
+static inline void cfq_blkiocg_set_start_empty_time(struct blkio_group *blkg)
+{
+	blkiocg_set_start_empty_time(blkg);
+}
+
+static inline void cfq_blkiocg_update_io_remove_stats(struct blkio_group *blkg,
+				bool direction, bool sync)
+{
+	blkiocg_update_io_remove_stats(blkg, direction, sync);
+}
+
+static inline void cfq_blkiocg_update_io_merged_stats(struct blkio_group *blkg,
+		bool direction, bool sync)
+{
+	blkiocg_update_io_merged_stats(blkg, direction, sync);
+}
+
+static inline void cfq_blkiocg_update_idle_time_stats(struct blkio_group *blkg)
+{
+	blkiocg_update_idle_time_stats(blkg);
+}
+
+static inline void
+cfq_blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg)
+{
+	blkiocg_update_avg_queue_size_stats(blkg);
+}
+
+static inline void
+cfq_blkiocg_update_set_idle_time_stats(struct blkio_group *blkg)
+{
+	blkiocg_update_set_idle_time_stats(blkg);
+}
+
+static inline void cfq_blkiocg_update_dispatch_stats(struct blkio_group *blkg,
+				uint64_t bytes, bool direction, bool sync)
+{
+	blkiocg_update_dispatch_stats(blkg, bytes, direction, sync);
+}
+
+static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg, uint64_t start_time, uint64_t io_start_time, bool direction, bool sync)
+{
+	cfq_blkiocg_update_completion_stats(blkg, start_time, io_start_time,
+				direction, sync);
+}
+
+static inline void cfq_blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,
+			struct blkio_group *blkg, void *key, dev_t dev) {
+	blkiocg_add_blkio_group(blkcg, blkg, key, dev);
+}
+
+static inline int cfq_blkiocg_del_blkio_group(struct blkio_group *blkg)
+{
+	return blkiocg_del_blkio_group(blkg);
+}
+
+#else /* CFQ_GROUP_IOSCHED */
+static inline void cfq_blkiocg_update_io_add_stats(struct blkio_group *blkg,
+	struct blkio_group *curr_blkg, bool direction, bool sync) {}
+
+static inline void cfq_blkiocg_update_dequeue_stats(struct blkio_group *blkg,
+			unsigned long dequeue) {}
+
+static inline void cfq_blkiocg_update_timeslice_used(struct blkio_group *blkg,
+			unsigned long time) {}
+static inline void cfq_blkiocg_set_start_empty_time(struct blkio_group *blkg) {}
+static inline void cfq_blkiocg_update_io_remove_stats(struct blkio_group *blkg,
+				bool direction, bool sync) {}
+static inline void cfq_blkiocg_update_io_merged_stats(struct blkio_group *blkg,
+		bool direction, bool sync) {}
+static inline void cfq_blkiocg_update_idle_time_stats(struct blkio_group *blkg)
+{
+}
+static inline void
+cfq_blkiocg_update_avg_queue_size_stats(struct blkio_group *blkg) {}
+
+static inline void
+cfq_blkiocg_update_set_idle_time_stats(struct blkio_group *blkg) {}
+
+static inline void cfq_blkiocg_update_dispatch_stats(struct blkio_group *blkg,
+				uint64_t bytes, bool direction, bool sync) {}
+static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg, uint64_t start_time, uint64_t io_start_time, bool direction, bool sync) {}
+
+static inline void cfq_blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,
+			struct blkio_group *blkg, void *key, dev_t dev) {}
+static inline int cfq_blkiocg_del_blkio_group(struct blkio_group *blkg)
+{
+	return 0;
+}
+
+#endif /* CFQ_GROUP_IOSCHED */
+#endif
-- 
cgit v1.2.3-55-g7522


From b6855772f4a22c4fbdd4fcaceff5c8a527035123 Mon Sep 17 00:00:00 2001
From: Bob Copeland
Date: Fri, 18 Jun 2010 13:15:23 -0400
Subject: ath5k: initialize ah->ah_current_channel

ath5k assumes ah_current_channel is always a valid pointer in
several places, but a newly created interface may not have a
channel.  To avoid null pointer dereferences, set it up to point
to the first available channel until later reconfigured.

This fixes the following oops:
$ rmmod ath5k
$ insmod ath5k
$ iw phy0 set distance 11000

BUG: unable to handle kernel NULL pointer dereference at 00000006
IP: [<d0a1ff24>] ath5k_hw_set_coverage_class+0x74/0x1b0 [ath5k]
*pde = 00000000
Oops: 0000 [#1]
last sysfs file: /sys/devices/pci0000:00/0000:00:0e.0/ieee80211/phy0/index
Modules linked in: usbhid option usb_storage usbserial usblp evdev lm90
scx200_acb i2c_algo_bit i2c_dev i2c_core via_rhine ohci_hcd ne2k_pci
8390 leds_alix2 xt_IMQ imq nf_nat_tftp nf_conntrack_tftp nf_nat_irc nf_cc

Pid: 1597, comm: iw Not tainted (2.6.32.14 #8)
EIP: 0060:[<d0a1ff24>] EFLAGS: 00010296 CPU: 0
EIP is at ath5k_hw_set_coverage_class+0x74/0x1b0 [ath5k]
EAX: 000000c2 EBX: 00000000 ECX: ffffffff EDX: c12d2080
ESI: 00000019 EDI: cf8c0000 EBP: d0a30edc ESP: cfa09bf4
  DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
Process iw (pid: 1597, ti=cfa09000 task=cf88a000 task.ti=cfa09000)
Stack:
  d0a34f35 d0a353f8 d0a30edc 000000fe cf8c0000 00000000 1900063d cfa8c9e0
<0> cfa8c9e8 cfa8c0c0 cfa8c000 d0a27f0c 199d84b4 cfa8c200 00000010 d09bfdc7
<0> 00000000 00000000 ffffffff d08e0d28 cf9263c0 00000001 cfa09cc4 00000000
Call Trace:
  [<d0a27f0c>] ? ath5k_hw_attach+0xc8c/0x3c10 [ath5k]
  [<d09bfdc7>] ? __ieee80211_request_smps+0x1347/0x1580 [mac80211]
  [<d08e0d28>] ? nl80211_send_scan_start+0x7b8/0x4520 [cfg80211]
  [<c10f5db9>] ? nla_parse+0x59/0xc0
  [<c11ca8d9>] ? genl_rcv_msg+0x169/0x1a0
  [<c11ca770>] ? genl_rcv_msg+0x0/0x1a0
  [<c11c7e68>] ? netlink_rcv_skb+0x38/0x90
  [<c11c9649>] ? genl_rcv+0x19/0x30
  [<c11c7c03>] ? netlink_unicast+0x1b3/0x220
  [<c11c893e>] ? netlink_sendmsg+0x26e/0x290
  [<c11a409e>] ? sock_sendmsg+0xbe/0xf0
  [<c1032780>] ? autoremove_wake_function+0x0/0x50
  [<c104d846>] ? __alloc_pages_nodemask+0x106/0x530
  [<c1074933>] ? do_lookup+0x53/0x1b0
  [<c10766f9>] ? __link_path_walk+0x9b9/0x9e0
  [<c11acab0>] ? verify_iovec+0x50/0x90
  [<c11a42b1>] ? sys_sendmsg+0x1e1/0x270
  [<c1048e50>] ? find_get_page+0x10/0x50
  [<c104a96f>] ? filemap_fault+0x5f/0x370
  [<c1059159>] ? __do_fault+0x319/0x370
  [<c11a55b4>] ? sys_socketcall+0x244/0x290
  [<c101962c>] ? do_page_fault+0x1ec/0x270
  [<c1019440>] ? do_page_fault+0x0/0x270
  [<c1002ae5>] ? syscall_call+0x7/0xb
Code: 00 b8 fe 00 00 00 b9 f8 53 a3 d0 89 5c 24 14 89 7c 24 10 89 44 24
0c 89 6c 24 08 89 4c 24 04 c7 04 24 35 4f a3 d0 e8 7c 30 60 f0 <0f> b7
43 06 ba 06 00 00 00 a8 10 75 0e 83 e0 20 83 f8 01 19 d2
EIP: [<d0a1ff24>] ath5k_hw_set_coverage_class+0x74/0x1b0 [ath5k] SS:ESP
0068:cfa09bf4
CR2: 0000000000000006
---[ end trace 54f73d6b10ceb87b ]---

Cc: stable@kernel.org
Reported-by: Steve Brown <sbrown@cortland.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath5k/attach.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/ath5k/attach.c b/drivers/net/wireless/ath/ath5k/attach.c
index e0c244b02f05..31c008042bfe 100644
--- a/drivers/net/wireless/ath/ath5k/attach.c
+++ b/drivers/net/wireless/ath/ath5k/attach.c
@@ -126,6 +126,7 @@ int ath5k_hw_attach(struct ath5k_softc *sc)
 	ah->ah_ant_mode = AR5K_ANTMODE_DEFAULT;
 	ah->ah_noise_floor = -95;	/* until first NF calibration is run */
 	sc->ani_state.ani_mode = ATH5K_ANI_MODE_AUTO;
+	ah->ah_current_channel = &sc->channels[0];
 
 	/*
 	 * Find the mac version
-- 
cgit v1.2.3-55-g7522


From 124482935fb7fb9303c8a8ab930149c6a93d9910 Mon Sep 17 00:00:00 2001
From: Andi Kleen
Date: Fri, 18 Jun 2010 23:09:00 +0200
Subject: x86: Fix vsyscall on gcc 4.5 with -Os

This fixes the -Os breaks with gcc 4.5 bug.  rdtsc_barrier needs to be
force inlined, otherwise user space will jump into kernel space and
kill init.

This also addresses http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44129
I believe.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
LKML-Reference: <20100618210859.GA10913@basil.fritz.box>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: <stable@kernel.org>
---
 arch/x86/include/asm/system.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
index b8fe48ee2ed9..e7f4d33c55ed 100644
--- a/arch/x86/include/asm/system.h
+++ b/arch/x86/include/asm/system.h
@@ -451,7 +451,7 @@ void stop_this_cpu(void *dummy);
  *
  * (Could use an alternative three way for this if there was one.)
  */
-static inline void rdtsc_barrier(void)
+static __always_inline void rdtsc_barrier(void)
 {
 	alternative(ASM_NOP3, "mfence", X86_FEATURE_MFENCE_RDTSC);
 	alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC);
-- 
cgit v1.2.3-55-g7522


From 83f7fd055eb3f1e843803cd906179d309553967b Mon Sep 17 00:00:00 2001
From: Jesse Barnes
Date: Mon, 5 Apr 2010 14:03:51 -0700
Subject: drm/i915: don't queue flips during a flip pending event

Hardware will set the flip pending ISR bit as soon as it receives the
flip instruction, and (supposedly) clear it once the flip completes
(e.g. at the next vblank).  If we try to send down a flip instruction
while the ISR bit is set, the hardware can become very confused, and we
may never receive the corresponding flip pending interrupt, effectively
hanging the chip.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/intel_display.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index fdeff4353725..dc65a1de5f02 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4680,6 +4680,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 	unsigned long flags;
 	int pipesrc_reg = (intel_crtc->pipe == 0) ? PIPEASRC : PIPEBSRC;
 	int ret, pipesrc;
+	u32 flip_mask;
 
 	work = kzalloc(sizeof *work, GFP_KERNEL);
 	if (work == NULL)
@@ -4733,6 +4734,16 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 	atomic_inc(&obj_priv->pending_flip);
 	work->pending_flip_obj = obj;
 
+	if (intel_crtc->plane)
+		flip_mask = I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT;
+	else
+		flip_mask = I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT;
+
+	/* Wait for any previous flip to finish */
+	if (IS_GEN3(dev))
+		while (I915_READ(ISR) & flip_mask)
+			;
+
 	BEGIN_LP_RING(4);
 	OUT_RING(MI_DISPLAY_FLIP |
 		 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
-- 
cgit v1.2.3-55-g7522


From 1afe3e9d4335bf3bc5615e37243dc8fef65dac8f Mon Sep 17 00:00:00 2001
From: Jesse Barnes
Date: Fri, 26 Mar 2010 10:35:20 -0700
Subject: drm/i915: gen3 page flipping fixes

Gen3 chips have slightly different flip commands, and also contain a bit
that indicates whether a "flip pending" interrupt means the flip has
been queued or has been completed.

So implement support for the gen3 flip command, and make sure we use the
flip pending interrupt correctly depending on the value of ECOSKPD bit
0.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_dma.c      |  4 ++++
 drivers/gpu/drm/i915/i915_drv.h      |  1 +
 drivers/gpu/drm/i915/i915_irq.c      | 16 ++++++++++++----
 drivers/gpu/drm/i915/i915_reg.h      |  4 ++++
 drivers/gpu/drm/i915/intel_display.c | 29 ++++++++++++++++++++++++-----
 drivers/gpu/drm/i915/intel_drv.h     |  1 +
 6 files changed, 46 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 84ce95602f00..4d59710c717e 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1408,6 +1408,10 @@ static int i915_load_modeset_init(struct drm_device *dev,
 	if (ret)
 		goto destroy_ringbuffer;
 
+	/* IIR "flip pending" bit means done if this bit is set */
+	if (IS_GEN3(dev) && (I915_READ(ECOSKPD) & ECO_FLIP_DONE))
+		dev_priv->flip_pending_is_done = true;
+
 	intel_modeset_init(dev);
 
 	ret = drm_irq_install(dev);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index f3f681fca76a..21e217dd48ef 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -595,6 +595,7 @@ typedef struct drm_i915_private {
 	struct drm_crtc *plane_to_crtc_mapping[2];
 	struct drm_crtc *pipe_to_crtc_mapping[2];
 	wait_queue_head_t pending_flip_queue;
+	bool flip_pending_is_done;
 
 	/* Reclocking support */
 	bool render_reclock_avail;
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index e9710a7005d4..70e1e4b66744 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -940,22 +940,30 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 		if (HAS_BSD(dev) && (iir & I915_BSD_USER_INTERRUPT))
 			DRM_WAKEUP(&dev_priv->bsd_ring.irq_queue);
 
-		if (iir & I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT)
+		if (iir & I915_DISPLAY_PLANE_A_FLIP_PENDING_INTERRUPT) {
 			intel_prepare_page_flip(dev, 0);
+			if (dev_priv->flip_pending_is_done)
+				intel_finish_page_flip_plane(dev, 0);
+		}
 
-		if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT)
+		if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT) {
+			if (dev_priv->flip_pending_is_done)
+				intel_finish_page_flip_plane(dev, 1);
 			intel_prepare_page_flip(dev, 1);
+		}
 
 		if (pipea_stats & vblank_status) {
 			vblank++;
 			drm_handle_vblank(dev, 0);
-			intel_finish_page_flip(dev, 0);
+			if (!dev_priv->flip_pending_is_done)
+				intel_finish_page_flip(dev, 0);
 		}
 
 		if (pipeb_stats & vblank_status) {
 			vblank++;
 			drm_handle_vblank(dev, 1);
-			intel_finish_page_flip(dev, 1);
+			if (!dev_priv->flip_pending_is_done)
+				intel_finish_page_flip(dev, 1);
 		}
 
 		if ((pipea_stats & I915_LEGACY_BLC_EVENT_STATUS) ||
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 64b0a3afd92b..2cae38a57247 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -178,6 +178,7 @@
 #define   MI_OVERLAY_OFF	(0x2<<21)
 #define MI_LOAD_SCAN_LINES_INCL MI_INSTR(0x12, 0)
 #define MI_DISPLAY_FLIP		MI_INSTR(0x14, 2)
+#define MI_DISPLAY_FLIP_I915	MI_INSTR(0x14, 1)
 #define   MI_DISPLAY_FLIP_PLANE(n) ((n) << 20)
 #define MI_STORE_DWORD_IMM	MI_INSTR(0x20, 1)
 #define   MI_MEM_VIRTUAL	(1 << 22) /* 965+ only */
@@ -368,6 +369,9 @@
 #define   CM0_RC_OP_FLUSH_DISABLE (1<<0)
 #define BB_ADDR		0x02140 /* 8 bytes */
 #define GFX_FLSH_CNTL	0x02170 /* 915+ only */
+#define ECOSKPD		0x021d0
+#define   ECO_GATING_CX_ONLY	(1<<3)
+#define   ECO_FLIP_DONE		(1<<0)
 
 /* GEN6 interrupt control */
 #define GEN6_RENDER_HWSTAM	0x2098
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index dc65a1de5f02..6db778a75e42 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4603,10 +4603,10 @@ static void intel_unpin_work_fn(struct work_struct *__work)
 	kfree(work);
 }
 
-void intel_finish_page_flip(struct drm_device *dev, int pipe)
+static void do_intel_finish_page_flip(struct drm_device *dev,
+				      struct drm_crtc *crtc)
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
 	struct intel_unpin_work *work;
 	struct drm_i915_gem_object *obj_priv;
@@ -4650,6 +4650,22 @@ void intel_finish_page_flip(struct drm_device *dev, int pipe)
 	schedule_work(&work->work);
 }
 
+void intel_finish_page_flip(struct drm_device *dev, int pipe)
+{
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe];
+
+	do_intel_finish_page_flip(dev, crtc);
+}
+
+void intel_finish_page_flip_plane(struct drm_device *dev, int plane)
+{
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_crtc *crtc = dev_priv->plane_to_crtc_mapping[plane];
+
+	do_intel_finish_page_flip(dev, crtc);
+}
+
 void intel_prepare_page_flip(struct drm_device *dev, int plane)
 {
 	drm_i915_private_t *dev_priv = dev->dev_private;
@@ -4745,14 +4761,17 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
 			;
 
 	BEGIN_LP_RING(4);
-	OUT_RING(MI_DISPLAY_FLIP |
-		 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
-	OUT_RING(fb->pitch);
 	if (IS_I965G(dev)) {
+		OUT_RING(MI_DISPLAY_FLIP |
+			 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
+		OUT_RING(fb->pitch);
 		OUT_RING(obj_priv->gtt_offset | obj_priv->tiling_mode);
 		pipesrc = I915_READ(pipesrc_reg); 
 		OUT_RING(pipesrc & 0x0fff0fff);
 	} else {
+		OUT_RING(MI_DISPLAY_FLIP_I915 |
+			 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
+		OUT_RING(fb->pitch);
 		OUT_RING(obj_priv->gtt_offset);
 		OUT_RING(MI_NOOP);
 	}
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index df931f787665..72206f37c4fb 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -224,6 +224,7 @@ extern void intel_fbdev_fini(struct drm_device *dev);
 
 extern void intel_prepare_page_flip(struct drm_device *dev, int plane);
 extern void intel_finish_page_flip(struct drm_device *dev, int pipe);
+extern void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
 
 extern void intel_setup_overlay(struct drm_device *dev);
 extern void intel_cleanup_overlay(struct drm_device *dev);
-- 
cgit v1.2.3-55-g7522


From eefc2d9e3d4f8820f2c128a0e44a23de28b1ed64 Mon Sep 17 00:00:00 2001
From: Jean Delvare
Date: Sun, 20 Jun 2010 09:22:31 +0200
Subject: hwmon: (k10temp) Do not blacklist known working CPU models

When detecting AM2+ or AM3 socket with DDR2, only blacklist cores
which are known to exist in AM2+ format.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: stable@kernel.org
---
 drivers/hwmon/k10temp.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index 099a2138cdf6..da5a2404cd3e 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -112,11 +112,21 @@ static bool __devinit has_erratum_319(struct pci_dev *pdev)
 	if (pkg_type != CPUID_PKGTYPE_AM2R2_AM3)
 		return false;
 
-	/* Differentiate between AM2+ (bad) and AM3 (good) */
+	/* DDR3 memory implies socket AM3, which is good */
 	pci_bus_read_config_dword(pdev->bus,
 				  PCI_DEVFN(PCI_SLOT(pdev->devfn), 2),
 				  REG_DCT0_CONFIG_HIGH, &reg_dram_cfg);
-	return !(reg_dram_cfg & DDR3_MODE);
+	if (reg_dram_cfg & DDR3_MODE)
+		return false;
+
+	/*
+	 * Unfortunately it is possible to run a socket AM3 CPU with DDR2
+	 * memory. We blacklist all the cores which do exist in socket AM2+
+	 * format. It still isn't perfect, as RB-C2 cores exist in both AM2+
+	 * and AM3 formats, but that's the best we can do.
+	 */
+	return boot_cpu_data.x86_model < 4 ||
+	       (boot_cpu_data.x86_model == 4 && boot_cpu_data.x86_mask <= 2);
 }
 
 static int __devinit k10temp_probe(struct pci_dev *pdev,
-- 
cgit v1.2.3-55-g7522


From 0e6c7870856c7fb4ee054d28ac253b2d3d0c7e36 Mon Sep 17 00:00:00 2001
From: KAMEZAWA Hiroyuki
Date: Sun, 20 Jun 2010 09:22:31 +0200
Subject: hwmon: (i5k_amb) Fix sysfs attribute for lockdep

i5k_amb.ko uses dynamically allocated memory (by kmalloc) for
attributes passed to sysfs. So, sysfs_attr_init() should be called
for working happy with lockdep.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: stable@kernel.org [2.6.34 only]
---
 drivers/hwmon/i5k_amb.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/hwmon/i5k_amb.c b/drivers/hwmon/i5k_amb.c
index e880e2c3871d..937983407e2a 100644
--- a/drivers/hwmon/i5k_amb.c
+++ b/drivers/hwmon/i5k_amb.c
@@ -289,6 +289,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev)
 			iattr->s_attr.dev_attr.attr.mode = S_IRUGO;
 			iattr->s_attr.dev_attr.show = show_label;
 			iattr->s_attr.index = k;
+			sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
 			res = device_create_file(&pdev->dev,
 						 &iattr->s_attr.dev_attr);
 			if (res)
@@ -303,6 +304,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev)
 			iattr->s_attr.dev_attr.attr.mode = S_IRUGO;
 			iattr->s_attr.dev_attr.show = show_amb_temp;
 			iattr->s_attr.index = k;
+			sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
 			res = device_create_file(&pdev->dev,
 						 &iattr->s_attr.dev_attr);
 			if (res)
@@ -318,6 +320,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev)
 			iattr->s_attr.dev_attr.show = show_amb_min;
 			iattr->s_attr.dev_attr.store = store_amb_min;
 			iattr->s_attr.index = k;
+			sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
 			res = device_create_file(&pdev->dev,
 						 &iattr->s_attr.dev_attr);
 			if (res)
@@ -333,6 +336,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev)
 			iattr->s_attr.dev_attr.show = show_amb_mid;
 			iattr->s_attr.dev_attr.store = store_amb_mid;
 			iattr->s_attr.index = k;
+			sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
 			res = device_create_file(&pdev->dev,
 						 &iattr->s_attr.dev_attr);
 			if (res)
@@ -348,6 +352,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev)
 			iattr->s_attr.dev_attr.show = show_amb_max;
 			iattr->s_attr.dev_attr.store = store_amb_max;
 			iattr->s_attr.index = k;
+			sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
 			res = device_create_file(&pdev->dev,
 						 &iattr->s_attr.dev_attr);
 			if (res)
@@ -362,6 +367,7 @@ static int __devinit i5k_amb_hwmon_init(struct platform_device *pdev)
 			iattr->s_attr.dev_attr.attr.mode = S_IRUGO;
 			iattr->s_attr.dev_attr.show = show_amb_alarm;
 			iattr->s_attr.index = k;
+			sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
 			res = device_create_file(&pdev->dev,
 						 &iattr->s_attr.dev_attr);
 			if (res)
-- 
cgit v1.2.3-55-g7522


From cd4de21f7e65a8cd04860f5661b3c18648ee52a1 Mon Sep 17 00:00:00 2001
From: Jean Delvare
Date: Sun, 20 Jun 2010 09:22:32 +0200
Subject: hwmon: (k8temp) Bypass core swapping on single-core processors

Commit a2e066bba2aad6583e3ff648bf28339d6c9f0898 introduced core
swapping for CPU models 64 and later. I recently had a report about
a Sempron 3200+, model 95, for which this patch broke temperature
reading. It happens that this is a single-core processor, so the
effect of the swapping was to read a temperature value for a core
that didn't exist, leading to an incorrect value (-49 degrees C.)

Disabling core swapping on singe-core processors should fix this.

Additional comment from Andreas:

The BKDG says

  Thermal Sensor Core Select (ThermSenseCoreSel)-Bit 2. This bit
  selects the CPU whose temperature is reported in the CurTemp
  field. This bit only applies to dual core processors. For
  single core processors CPU0 Thermal Sensor is always selected.

k8temp_probe() correctly detected that SEL_CORE can't be used on single
core CPU. Thus k8temp did never update the temperature values stored
in temp[1][x] and -49 degrees was reported. For single core CPUs we
must use the values read into temp[0][x].

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: Rick Moritz <rhavin@gmx.net>
Acked-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: stable@kernel.org
---
 drivers/hwmon/k8temp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c
index 0ceb6d6200a3..f26acdb11681 100644
--- a/drivers/hwmon/k8temp.c
+++ b/drivers/hwmon/k8temp.c
@@ -120,7 +120,7 @@ static ssize_t show_temp(struct device *dev,
 	int temp;
 	struct k8temp_data *data = k8temp_update_device(dev);
 
-	if (data->swap_core_select)
+	if (data->swap_core_select && (data->sensorsp & SEL_CORE))
 		core = core ? 0 : 1;
 
 	temp = TEMP_FROM_REG(data->temp[core][place]) + data->temp_offset;
-- 
cgit v1.2.3-55-g7522


From 890ffedc7c3e95595926379e28ad2e16e7d7c613 Mon Sep 17 00:00:00 2001
From: Thomas Backlund
Date: Sat, 19 Jun 2010 16:32:25 +0300
Subject: x86: Fix rebooting on Dell Precision WorkStation T7400

Dell Precision WorkStation T7400 freezes on reboot unless
reboot=b is used.

Reference: https://qa.mandriva.com/show_bug.cgi?id=58017

Signed-off-by: Thomas Backlund <tmb@mandriva.org>
LKML-Reference: <4C1CC6E9.6000701@mandriva.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/reboot.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 8e1aac86b50c..e3af342fe83a 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -228,6 +228,14 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation T5400"),
 		},
 	},
+	{	/* Handle problems with rebooting on Dell T7400's */
+		.callback = set_bios_reboot,
+		.ident = "Dell Precision T7400",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation T7400"),
+		},
+	},
 	{	/* Handle problems with rebooting on HP laptops */
 		.callback = set_bios_reboot,
 		.ident = "HP Compaq Laptop",
-- 
cgit v1.2.3-55-g7522


From 0e6f989ba83e6fa64e979d3488f01670b8be7959 Mon Sep 17 00:00:00 2001
From: Julia Lawall
Date: Sun, 20 Jun 2010 11:24:54 +0000
Subject: arch/sh/mm: Eliminate a double lock

The function begins and ends with a read_lock.  The latter is changed to a
read_unlock.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@locked@
expression E1;
position p;
@@

read_lock(E1@p,...);

@r exists@
expression x <= locked.E1;
expression locked.E1;
expression E2;
identifier lock;
position locked.p,p1,p2;
@@

*lock@p1 (E1@p,...);
... when != E1
    when != \(x = E2\|&x\)
*lock@p2 (E1,...);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/mm/pmb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index 18623ba751b3..6379091a1647 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -770,7 +770,7 @@ static void __init pmb_resize(void)
 		spin_unlock_irqrestore(&pmbe->lock, flags);
 	}
 
-	read_lock(&pmb_rwlock);
+	read_unlock(&pmb_rwlock);
 }
 #endif
 
-- 
cgit v1.2.3-55-g7522


From 9e495db1a1f931e82c9edccd677dd171be5b85d2 Mon Sep 17 00:00:00 2001
From: Jens Axboe
Date: Mon, 21 Jun 2010 09:10:55 +0200
Subject: cfq: fix recursive call in cfq_blkiocg_update_completion_stats()

e98ef89b has a typo, causing cfq_blkiocg_update_completion_stats()
to call itself instead of blkiocg_update_completion_stats().

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 block/cfq.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/cfq.h b/block/cfq.h
index 8783318dc5be..93448e5a2e41 100644
--- a/block/cfq.h
+++ b/block/cfq.h
@@ -63,7 +63,7 @@ static inline void cfq_blkiocg_update_dispatch_stats(struct blkio_group *blkg,
 
 static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg, uint64_t start_time, uint64_t io_start_time, bool direction, bool sync)
 {
-	cfq_blkiocg_update_completion_stats(blkg, start_time, io_start_time,
+	blkiocg_update_completion_stats(blkg, start_time, io_start_time,
 				direction, sync);
 }
 
-- 
cgit v1.2.3-55-g7522


From 272cbc98cfbdd30cff37a35f8ad8f1b737288e88 Mon Sep 17 00:00:00 2001
From: Jiri Slaby
Date: Mon, 21 Jun 2010 17:03:21 +0200
Subject: ALSA: usb/endpoint, fix dangling pointer use

Stanse found that in snd_usb_parse_audio_endpoints, there is a
dangling pointer dereference. When snd_usb_parse_audio_format fails,
fp is freed, and continue invoked. On the next loop, there is
"fp && fp->altsetting == 1 && fp->channels == 1" test, but fp is set
from the last iteration (but is bogus) and thus ilegally dereferenced.

Set fp to NULL before "continue".

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/endpoint.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 9593b91452b9..6f6596cf2b19 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -427,6 +427,7 @@ int snd_usb_parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no)
 		if (snd_usb_parse_audio_format(chip, fp, format, fmt, stream, alts) < 0) {
 			kfree(fp->rate_table);
 			kfree(fp);
+			fp = NULL;
 			continue;
 		}
 
-- 
cgit v1.2.3-55-g7522


From b70e4f0529c089b00d0a6da13106db4de1ada4c7 Mon Sep 17 00:00:00 2001
From: Wu Zhangjin
Date: Mon, 21 Jun 2010 19:09:09 +0800
Subject: tracing: Fix undeclared ENOSYS in include/linux/tracepoint.h

The header file include/linux/tracepoint.h may be included without
include/linux/errno.h and then the compiler will fail on building for
undelcared ENOSYS. This patch fixes this problem via including <linux/errno.h>
to include/linux/tracepoint.h.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
LKML-Reference: <1277118549-622-1-git-send-email-wuzhangjin@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/linux/tracepoint.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 9a59d1f98cd4..103d1b61aacb 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -14,6 +14,7 @@
  * See the file COPYING for more details.
  */
 
+#include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/rcupdate.h>
 
-- 
cgit v1.2.3-55-g7522


From ade2d3db21b0625f9528bcd6f1656dd7c8d0fe08 Mon Sep 17 00:00:00 2001
From: Ralf Baechle
Date: Mon, 21 Jun 2010 03:44:50 +0000
Subject: NET: MIPSsim: Fix modpost warning.

$ make CONFIG_DEBUG_SECTION_MISMATCH=y
[...]
WARNING: drivers/net/built-in.o(.data+0x0): Section mismatch in reference from the variable mipsnet_driver to the function .init.text:mipsnet_probe()
The variable mipsnet_driver references
the function __init mipsnet_probe()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console,
[...]

Fixed by making mipsnet_probe __devinit.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 drivers/net/mipsnet.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/mipsnet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/mipsnet.c b/drivers/net/mipsnet.c
index 8e9704f5c122..869f0ea43a5b 100644
--- a/drivers/net/mipsnet.c
+++ b/drivers/net/mipsnet.c
@@ -247,7 +247,7 @@ static const struct net_device_ops mipsnet_netdev_ops = {
 	.ndo_set_mac_address	= eth_mac_addr,
 };
 
-static int __init mipsnet_probe(struct platform_device *dev)
+static int __devinit mipsnet_probe(struct platform_device *dev)
 {
 	struct net_device *netdev;
 	int err;
-- 
cgit v1.2.3-55-g7522


From 13fea6d4f73942e6961aec97ba4c593619d18f6f Mon Sep 17 00:00:00 2001
From: Helge Deller
Date: Mon, 21 Jun 2010 13:50:18 -0700
Subject: lasi82596: fix netdev_mc_count conversion

Fix commit 4cd24eaf0 (net: use netdev_mc_count and netdev_mc_empty when
appropriate)

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/lib82596.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/lib82596.c b/drivers/net/lib82596.c
index ce5d6e909218..c27f4291b350 100644
--- a/drivers/net/lib82596.c
+++ b/drivers/net/lib82596.c
@@ -1343,7 +1343,7 @@ static void set_multicast_list(struct net_device *dev)
 	DEB(DEB_MULTI,
 	    printk(KERN_DEBUG
 		   "%s: set multicast list, %d entries, promisc %s, allmulti %s\n",
-		   dev->name, dev->mc_count,
+		   dev->name, netdev_mc_count(dev),
 		   dev->flags & IFF_PROMISC ? "ON" : "OFF",
 		   dev->flags & IFF_ALLMULTI ? "ON" : "OFF"));
 
-- 
cgit v1.2.3-55-g7522


From 26cde9f7e2747b6d254b704594eed87ab959afa5 Mon Sep 17 00:00:00 2001
From: Herbert Xu
Date: Tue, 15 Jun 2010 01:52:25 +0000
Subject: udp: Fix bogus UFO packet generation

It has been reported that the new UFO software fallback path
fails under certain conditions with NFS.  I tracked the problem
down to the generation of UFO packets that are smaller than the
MTU.  The software fallback path simply discards these packets.

This patch fixes the problem by not generating such packets on
the UFO path.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/ip_output.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 9a4a6c96cb0d..041d41df1224 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -873,8 +873,10 @@ int ip_append_data(struct sock *sk,
 	    !exthdrlen)
 		csummode = CHECKSUM_PARTIAL;
 
+	skb = skb_peek_tail(&sk->sk_write_queue);
+
 	inet->cork.length += length;
-	if (((length> mtu) || !skb_queue_empty(&sk->sk_write_queue)) &&
+	if (((length > mtu) || (skb && skb_is_gso(skb))) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
 	    (rt->u.dst.dev->features & NETIF_F_UFO)) {
 		err = ip_ufo_append_data(sk, getfrag, from, length, hh_len,
@@ -892,7 +894,7 @@ int ip_append_data(struct sock *sk,
 	 * adding appropriate IP header.
 	 */
 
-	if ((skb = skb_peek_tail(&sk->sk_write_queue)) == NULL)
+	if (!skb)
 		goto alloc_new_skb;
 
 	while (length > 0) {
@@ -1121,7 +1123,8 @@ ssize_t	ip_append_page(struct sock *sk, struct page *page,
 		return -EINVAL;
 
 	inet->cork.length += size;
-	if ((sk->sk_protocol == IPPROTO_UDP) &&
+	if ((size + skb->len > mtu) &&
+	    (sk->sk_protocol == IPPROTO_UDP) &&
 	    (rt->u.dst.dev->features & NETIF_F_UFO)) {
 		skb_shinfo(skb)->gso_size = mtu - fragheaderlen;
 		skb_shinfo(skb)->gso_type = SKB_GSO_UDP;
-- 
cgit v1.2.3-55-g7522


From 5967d33ce8a030f01a716fc0b25fcb03744a5fda Mon Sep 17 00:00:00 2001
From: Paul Mundt
Date: Tue, 22 Jun 2010 16:41:31 +0900
Subject: clocksource: sh_cmt: Fix up bogus shift value.

The previous CMT fixup accidentally copied in the TMU shift value, reset
this back to its original value while preserving the TMU fix.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 drivers/clocksource/sh_cmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index f3d3898898ed..717305d30444 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -449,7 +449,7 @@ static int sh_cmt_register_clocksource(struct sh_cmt_priv *p,
 	clk_disable(p->clk);
 
 	/* TODO: calculate good shift from rate and counter bit width */
-	cs->shift = 10;
+	cs->shift = 0;
 	cs->mult = clocksource_hz2mult(p->rate, cs->shift);
 
 	dev_info(&p->pdev->dev, "used as clock source\n");
-- 
cgit v1.2.3-55-g7522


From d5dc0ae4df9db00b8122378d56a071039b17a1eb Mon Sep 17 00:00:00 2001
From: Filip Aben
Date: Tue, 22 Jun 2010 10:10:35 -0700
Subject: hso: remove setting of low_latency flag

This patch removes the setting of the low_latency flag. 
tty_flip_buffer_push() is occasionally being called in irq context, which 
causes a hang if the low_latency flag is set.
Removing the low_latency flag only seems to impact the flush to ldisc, 
which will now be put on a workqueue.

Signed-off-by: Filip Aben <f.aben@option.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/hso.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index 0a3c41faea9c..4dd23513c5af 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -1334,7 +1334,6 @@ static int hso_serial_open(struct tty_struct *tty, struct file *filp)
 	/* check for port already opened, if not set the termios */
 	serial->open_count++;
 	if (serial->open_count == 1) {
-		tty->low_latency = 1;
 		serial->rx_state = RX_IDLE;
 		/* Force default termio settings */
 		_hso_serial_set_termios(tty, NULL);
-- 
cgit v1.2.3-55-g7522


From f799bdb355edaabd81b778087613409a8932fbe9 Mon Sep 17 00:00:00 2001
From: Andy Adamson
Date: Wed, 16 Jun 2010 09:51:02 -0400
Subject: nfs4 use mandatory attribute file type in nfs4_get_root

S_ISDIR(fsinfo.fattr->mode) checks the file type rather than the mode bits,
so we should be checking for the NFS_ATTR_FATTR_TYPE fattr property.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
---
 fs/nfs/getroot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index 7428f7d6273b..a70e446e1605 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -146,7 +146,7 @@ int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh)
 		goto out;
 	}
 
-	if (!(fsinfo.fattr->valid & NFS_ATTR_FATTR_MODE)
+	if (!(fsinfo.fattr->valid & NFS_ATTR_FATTR_TYPE)
 			|| !S_ISDIR(fsinfo.fattr->mode)) {
 		printk(KERN_ERR "nfs4_get_rootfh:"
 		       " getroot encountered non-directory\n");
-- 
cgit v1.2.3-55-g7522


From b76ce56192bcf618013fb9aecd83488cffd645cc Mon Sep 17 00:00:00 2001
From: Trond Myklebust
Date: Wed, 16 Jun 2010 13:57:32 -0400
Subject: SUNRPC: Fix a re-entrancy bug in xs_tcp_read_calldir()

If the attempt to read the calldir fails, then instead of storing the read
bytes, we currently discard them. This leads to a garbage final result when
upon re-entry to the same routine, we read the remaining bytes.

Fixes the regression in bugzilla number 16213. Please see
    https://bugzilla.kernel.org/show_bug.cgi?id=16213

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
---
 net/sunrpc/xprtsock.c | 38 ++++++++++++++++++++++----------------
 1 file changed, 22 insertions(+), 16 deletions(-)

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 2a9675136c68..7ca65c7005ea 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -210,7 +210,8 @@ struct sock_xprt {
 	 * State of TCP reply receive
 	 */
 	__be32			tcp_fraghdr,
-				tcp_xid;
+				tcp_xid,
+				tcp_calldir;
 
 	u32			tcp_offset,
 				tcp_reclen;
@@ -927,7 +928,7 @@ static inline void xs_tcp_read_calldir(struct sock_xprt *transport,
 {
 	size_t len, used;
 	u32 offset;
-	__be32	calldir;
+	char *p;
 
 	/*
 	 * We want transport->tcp_offset to be 8 at the end of this routine
@@ -936,26 +937,33 @@ static inline void xs_tcp_read_calldir(struct sock_xprt *transport,
 	 * transport->tcp_offset is 4 (after having already read the xid).
 	 */
 	offset = transport->tcp_offset - sizeof(transport->tcp_xid);
-	len = sizeof(calldir) - offset;
+	len = sizeof(transport->tcp_calldir) - offset;
 	dprintk("RPC:       reading CALL/REPLY flag (%Zu bytes)\n", len);
-	used = xdr_skb_read_bits(desc, &calldir, len);
+	p = ((char *) &transport->tcp_calldir) + offset;
+	used = xdr_skb_read_bits(desc, p, len);
 	transport->tcp_offset += used;
 	if (used != len)
 		return;
 	transport->tcp_flags &= ~TCP_RCV_READ_CALLDIR;
-	transport->tcp_flags |= TCP_RCV_COPY_CALLDIR;
-	transport->tcp_flags |= TCP_RCV_COPY_DATA;
 	/*
 	 * We don't yet have the XDR buffer, so we will write the calldir
 	 * out after we get the buffer from the 'struct rpc_rqst'
 	 */
-	if (ntohl(calldir) == RPC_REPLY)
+	switch (ntohl(transport->tcp_calldir)) {
+	case RPC_REPLY:
+		transport->tcp_flags |= TCP_RCV_COPY_CALLDIR;
+		transport->tcp_flags |= TCP_RCV_COPY_DATA;
 		transport->tcp_flags |= TCP_RPC_REPLY;
-	else
+		break;
+	case RPC_CALL:
+		transport->tcp_flags |= TCP_RCV_COPY_CALLDIR;
+		transport->tcp_flags |= TCP_RCV_COPY_DATA;
 		transport->tcp_flags &= ~TCP_RPC_REPLY;
-	dprintk("RPC:       reading %s CALL/REPLY flag %08x\n",
-			(transport->tcp_flags & TCP_RPC_REPLY) ?
-				"reply for" : "request with", calldir);
+		break;
+	default:
+		dprintk("RPC:       invalid request message type\n");
+		xprt_force_disconnect(&transport->xprt);
+	}
 	xs_tcp_check_fraghdr(transport);
 }
 
@@ -975,12 +983,10 @@ static inline void xs_tcp_read_common(struct rpc_xprt *xprt,
 		/*
 		 * Save the RPC direction in the XDR buffer
 		 */
-		__be32	calldir = transport->tcp_flags & TCP_RPC_REPLY ?
-					htonl(RPC_REPLY) : 0;
-
 		memcpy(rcvbuf->head[0].iov_base + transport->tcp_copied,
-			&calldir, sizeof(calldir));
-		transport->tcp_copied += sizeof(calldir);
+			&transport->tcp_calldir,
+			sizeof(transport->tcp_calldir));
+		transport->tcp_copied += sizeof(transport->tcp_calldir);
 		transport->tcp_flags &= ~TCP_RCV_COPY_CALLDIR;
 	}
 
-- 
cgit v1.2.3-55-g7522


From 44950b67a6239b377a9e6fd52c498b310bcdd713 Mon Sep 17 00:00:00 2001
From: Trond Myklebust
Date: Thu, 17 Jun 2010 11:45:12 -0400
Subject: NFSv4.1: Ensure that we initialise the session when following a
 referral

Put the code that is common to both the referral and ordinary mount cases
into a common helper routine.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/client.c | 122 +++++++++++++++++++++++---------------------------------
 1 file changed, 51 insertions(+), 71 deletions(-)

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 7ec9b34a59f8..d25b5257b7a1 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -1286,6 +1286,55 @@ static void nfs4_session_set_rwsize(struct nfs_server *server)
 #endif /* CONFIG_NFS_V4_1 */
 }
 
+static int nfs4_server_common_setup(struct nfs_server *server,
+		struct nfs_fh *mntfh)
+{
+	struct nfs_fattr *fattr;
+	int error;
+
+	BUG_ON(!server->nfs_client);
+	BUG_ON(!server->nfs_client->rpc_ops);
+	BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
+
+	fattr = nfs_alloc_fattr();
+	if (fattr == NULL)
+		return -ENOMEM;
+
+	/* We must ensure the session is initialised first */
+	error = nfs4_init_session(server);
+	if (error < 0)
+		goto out;
+
+	/* Probe the root fh to retrieve its FSID and filehandle */
+	error = nfs4_get_rootfh(server, mntfh);
+	if (error < 0)
+		goto out;
+
+	dprintk("Server FSID: %llx:%llx\n",
+			(unsigned long long) server->fsid.major,
+			(unsigned long long) server->fsid.minor);
+	dprintk("Mount FH: %d\n", mntfh->size);
+
+	nfs4_session_set_rwsize(server);
+
+	error = nfs_probe_fsinfo(server, mntfh, fattr);
+	if (error < 0)
+		goto out;
+
+	if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
+		server->namelen = NFS4_MAXNAMLEN;
+
+	spin_lock(&nfs_client_lock);
+	list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks);
+	list_add_tail(&server->master_link, &nfs_volume_list);
+	spin_unlock(&nfs_client_lock);
+
+	server->mount_time = jiffies;
+out:
+	nfs_free_fattr(fattr);
+	return error;
+}
+
 /*
  * Create a version 4 volume record
  */
@@ -1346,7 +1395,6 @@ error:
 struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
 				      struct nfs_fh *mntfh)
 {
-	struct nfs_fattr *fattr;
 	struct nfs_server *server;
 	int error;
 
@@ -1356,55 +1404,19 @@ struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
 	if (!server)
 		return ERR_PTR(-ENOMEM);
 
-	error = -ENOMEM;
-	fattr = nfs_alloc_fattr();
-	if (fattr == NULL)
-		goto error;
-
 	/* set up the general RPC client */
 	error = nfs4_init_server(server, data);
 	if (error < 0)
 		goto error;
 
-	BUG_ON(!server->nfs_client);
-	BUG_ON(!server->nfs_client->rpc_ops);
-	BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
-
-	error = nfs4_init_session(server);
-	if (error < 0)
-		goto error;
-
-	/* Probe the root fh to retrieve its FSID */
-	error = nfs4_get_rootfh(server, mntfh);
+	error = nfs4_server_common_setup(server, mntfh);
 	if (error < 0)
 		goto error;
 
-	dprintk("Server FSID: %llx:%llx\n",
-		(unsigned long long) server->fsid.major,
-		(unsigned long long) server->fsid.minor);
-	dprintk("Mount FH: %d\n", mntfh->size);
-
-	nfs4_session_set_rwsize(server);
-
-	error = nfs_probe_fsinfo(server, mntfh, fattr);
-	if (error < 0)
-		goto error;
-
-	if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
-		server->namelen = NFS4_MAXNAMLEN;
-
-	spin_lock(&nfs_client_lock);
-	list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks);
-	list_add_tail(&server->master_link, &nfs_volume_list);
-	spin_unlock(&nfs_client_lock);
-
-	server->mount_time = jiffies;
 	dprintk("<-- nfs4_create_server() = %p\n", server);
-	nfs_free_fattr(fattr);
 	return server;
 
 error:
-	nfs_free_fattr(fattr);
 	nfs_free_server(server);
 	dprintk("<-- nfs4_create_server() = error %d\n", error);
 	return ERR_PTR(error);
@@ -1418,7 +1430,6 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 {
 	struct nfs_client *parent_client;
 	struct nfs_server *server, *parent_server;
-	struct nfs_fattr *fattr;
 	int error;
 
 	dprintk("--> nfs4_create_referral_server()\n");
@@ -1427,11 +1438,6 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 	if (!server)
 		return ERR_PTR(-ENOMEM);
 
-	error = -ENOMEM;
-	fattr = nfs_alloc_fattr();
-	if (fattr == NULL)
-		goto error;
-
 	parent_server = NFS_SB(data->sb);
 	parent_client = parent_server->nfs_client;
 
@@ -1456,40 +1462,14 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 	if (error < 0)
 		goto error;
 
-	BUG_ON(!server->nfs_client);
-	BUG_ON(!server->nfs_client->rpc_ops);
-	BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
-
-	/* Probe the root fh to retrieve its FSID and filehandle */
-	error = nfs4_get_rootfh(server, mntfh);
-	if (error < 0)
-		goto error;
-
-	/* probe the filesystem info for this server filesystem */
-	error = nfs_probe_fsinfo(server, mntfh, fattr);
+	error = nfs4_server_common_setup(server, mntfh);
 	if (error < 0)
 		goto error;
 
-	if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
-		server->namelen = NFS4_MAXNAMLEN;
-
-	dprintk("Referral FSID: %llx:%llx\n",
-		(unsigned long long) server->fsid.major,
-		(unsigned long long) server->fsid.minor);
-
-	spin_lock(&nfs_client_lock);
-	list_add_tail(&server->client_link, &server->nfs_client->cl_superblocks);
-	list_add_tail(&server->master_link, &nfs_volume_list);
-	spin_unlock(&nfs_client_lock);
-
-	server->mount_time = jiffies;
-
-	nfs_free_fattr(fattr);
 	dprintk("<-- nfs_create_referral_server() = %p\n", server);
 	return server;
 
 error:
-	nfs_free_fattr(fattr);
 	nfs_free_server(server);
 	dprintk("<-- nfs4_create_referral_server() = error %d\n", error);
 	return ERR_PTR(error);
-- 
cgit v1.2.3-55-g7522


From 0be8189f2c87fcc747d6a4a657a0b6e2161b2318 Mon Sep 17 00:00:00 2001
From: Trond Myklebust
Date: Fri, 18 Jun 2010 12:23:58 -0400
Subject: NFSv4: Ensure that /proc/self/mountinfo displays the minor version
 number

Currently, we do not display the minor version mount parameter in the
/proc mount info.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
---
 fs/nfs/super.c | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 04214fc5c304..f9df16de4a56 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -570,6 +570,22 @@ static void nfs_show_mountd_options(struct seq_file *m, struct nfs_server *nfss,
 	nfs_show_mountd_netid(m, nfss, showdefaults);
 }
 
+#ifdef CONFIG_NFS_V4
+static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
+				    int showdefaults)
+{
+	struct nfs_client *clp = nfss->nfs_client;
+
+	seq_printf(m, ",clientaddr=%s", clp->cl_ipaddr);
+	seq_printf(m, ",minorversion=%u", clp->cl_minorversion);
+}
+#else
+static void nfs_show_nfsv4_options(struct seq_file *m, struct nfs_server *nfss,
+				    int showdefaults)
+{
+}
+#endif
+
 /*
  * Describe the mount options in force on this server representation
  */
@@ -631,11 +647,9 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
 
 	if (version != 4)
 		nfs_show_mountd_options(m, nfss, showdefaults);
+	else
+		nfs_show_nfsv4_options(m, nfss, showdefaults);
 
-#ifdef CONFIG_NFS_V4
-	if (clp->rpc_ops->version == 4)
-		seq_printf(m, ",clientaddr=%s", clp->cl_ipaddr);
-#endif
 	if (nfss->options & NFS_OPTION_FSCACHE)
 		seq_printf(m, ",fsc");
 }
-- 
cgit v1.2.3-55-g7522


From d3f6baaa34c54040b3ef30950e59b54ac0624b21 Mon Sep 17 00:00:00 2001
From: Trond Myklebust
Date: Tue, 22 Jun 2010 08:52:39 -0400
Subject: NFSv4: Fix an embarassing typo in encode_attrs()

Apparently, we have never been able to set the atime correctly from the
NFSv4 client.

Reported-by: 小倉一夫 <ka-ogura@bd6.so-net.ne.jp>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
---
 fs/nfs/nfs4xdr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 6bdef28efa33..65c8dae4b267 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -862,8 +862,8 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap, const
 		bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
 		*p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
 		*p++ = cpu_to_be32(0);
-		*p++ = cpu_to_be32(iap->ia_mtime.tv_sec);
-		*p++ = cpu_to_be32(iap->ia_mtime.tv_nsec);
+		*p++ = cpu_to_be32(iap->ia_atime.tv_sec);
+		*p++ = cpu_to_be32(iap->ia_atime.tv_nsec);
 	}
 	else if (iap->ia_valid & ATTR_ATIME) {
 		bmval1 |= FATTR4_WORD1_TIME_ACCESS_SET;
-- 
cgit v1.2.3-55-g7522


From 0b28bac5aef7bd1ab213723df031e61db9ff151a Mon Sep 17 00:00:00 2001
From: Randy Dunlap
Date: Thu, 17 Jun 2010 22:31:17 -0700
Subject: Input: fixup X86_MRST selects

Some of the recent X86_MRST additions make some "select"s
conditional on X86_MRST but missed some related kconfig symbols,
causing:

drivers/built-in.o: In function `ps2_end_command':
(.text+0x257ab2): undefined reference to `i8042_check_port_owner'
drivers/built-in.o: In function `ps2_end_command':
(.text+0x257ae1): undefined reference to `i8042_unlock_chip'
drivers/built-in.o: In function `ps2_begin_command':
(.text+0x257b40): undefined reference to `i8042_check_port_owner'
drivers/built-in.o: In function `ps2_begin_command':
(.text+0x257b6f): undefined reference to `i8042_lock_chip'

when SERIO_I8042=m, SERIO_LIBPS2=y, KEYBOARD_ATKBD=y.

We need to make i8042 dependant upon !X86_MRST and allow deselecting
atkbd on Moorestown even when !CONFIG_EMBEDDED.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Jacob Pan <jacob.jun.pan@intel.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/keyboard/Kconfig | 2 +-
 drivers/input/serio/Kconfig    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index d8fa5d724c57..0f9a4785d798 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -69,7 +69,7 @@ config KEYBOARD_ATARI
 	  module will be called atakbd.
 
 config KEYBOARD_ATKBD
-	tristate "AT keyboard" if EMBEDDED || !X86
+	tristate "AT keyboard" if EMBEDDED || !X86 || X86_MRST
 	default y
 	select SERIO
 	select SERIO_LIBPS2
diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index 3bfe8fafc6ad..256b9e9394dc 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -22,7 +22,7 @@ config SERIO_I8042
 	tristate "i8042 PC Keyboard controller" if EMBEDDED || !X86
 	default y
 	depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST) && \
-		   (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN
+		   (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN && !X86_MRST
 	help
 	  i8042 is the chip over which the standard AT keyboard and PS/2
 	  mouse are connected to the computer. If you use these devices,
-- 
cgit v1.2.3-55-g7522


From 493630b20389b66dc475eb05cfefd33ad98d3741 Mon Sep 17 00:00:00 2001
From: Ping Cheng
Date: Tue, 22 Jun 2010 11:21:34 -0700
Subject: Input: wacom - fix serial number handling on Cintiq 21UX2

Cintiq 21UX2 added 8 more bits for the tool serial number and more
buttons for the expresskey. We did not enable them properly in the
last patch.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 drivers/input/tablet/wacom_wac.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index d564af58175c..415f6306105d 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -284,12 +284,13 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
 			(data[4] << 20) + (data[5] << 12) +
 			(data[6] << 4) + (data[7] >> 4);
 
-		wacom->id[idx] = (data[2] << 4) | (data[3] >> 4);
+		wacom->id[idx] = (data[2] << 4) | (data[3] >> 4) |
+			((data[7] & 0x0f) << 20) | ((data[8] & 0xf0) << 12);
 
-		switch (wacom->id[idx]) {
+		switch (wacom->id[idx] & 0xfffff) {
 		case 0x812: /* Inking pen */
 		case 0x801: /* Intuos3 Inking pen */
-		case 0x20802: /* Intuos4 Classic Pen */
+		case 0x20802: /* Intuos4 Inking Pen */
 		case 0x012:
 			wacom->tool[idx] = BTN_TOOL_PENCIL;
 			break;
@@ -513,7 +514,7 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 			input_report_abs(input, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]);
 			input_report_abs(input, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]);
 
-			if ((data[5] & 0x1f) | (data[6] & 0x1f) | (data[1] & 0x1f) |
+			if ((data[5] & 0x1f) | data[6] | (data[1] & 0x1f) |
 				data[2] | (data[3] & 0x1f) | data[4] | data[8] |
 				(data[7] & 0x01)) {
 				input_report_key(input, wacom->tool[1], 1);
-- 
cgit v1.2.3-55-g7522


From 1817176a86352f65210139d4c794ad2d19fc6b63 Mon Sep 17 00:00:00 2001
From: Dan Rosenberg
Date: Thu, 24 Jun 2010 12:07:47 +1000
Subject: xfs: prevent swapext from operating on write-only files

This patch prevents user "foo" from using the SWAPEXT ioctl to swap
a write-only file owned by user "bar" into a file owned by "foo" and
subsequently reading it.  It does so by checking that the file
descriptors passed to the ioctl are also opened for reading.

Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/xfs_dfrag.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index 5bba29a07812..7f159d2a429a 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -69,7 +69,9 @@ xfs_swapext(
 		goto out;
 	}
 
-	if (!(file->f_mode & FMODE_WRITE) || (file->f_flags & O_APPEND)) {
+	if (!(file->f_mode & FMODE_WRITE) ||
+	    !(file->f_mode & FMODE_READ) ||
+	    (file->f_flags & O_APPEND)) {
 		error = XFS_ERROR(EBADF);
 		goto out_put_file;
 	}
@@ -81,6 +83,7 @@ xfs_swapext(
 	}
 
 	if (!(tmp_file->f_mode & FMODE_WRITE) ||
+	    !(tmp_file->f_mode & FMODE_READ) ||
 	    (tmp_file->f_flags & O_APPEND)) {
 		error = XFS_ERROR(EBADF);
 		goto out_put_tmp_file;
-- 
cgit v1.2.3-55-g7522


From 7dce11dbac54fce777eea0f5fb25b2694ccd7900 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig
Date: Wed, 23 Jun 2010 18:11:11 +1000
Subject: xfs: always use iget in bulkstat

The non-coherent bulkstat versionsthat look directly at the inode
buffers causes various problems with performance optimizations that
make increased use of just logging inodes.  This patch makes bulkstat
always use iget, which should be fast enough for normal use with the
radix-tree based inode cache introduced a while ago.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
---
 fs/xfs/linux-2.6/xfs_ioctl.c   |   7 +-
 fs/xfs/linux-2.6/xfs_ioctl32.c |  12 +-
 fs/xfs/quota/xfs_qm.c          |  11 +-
 fs/xfs/quota/xfs_qm_syscalls.c |  16 +--
 fs/xfs/xfs_itable.c            | 281 ++++++-----------------------------------
 fs/xfs/xfs_itable.h            |  14 --
 6 files changed, 59 insertions(+), 282 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 699b60cbab9c..e59a81062830 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -679,10 +679,9 @@ xfs_ioc_bulkstat(
 		error = xfs_bulkstat_single(mp, &inlast,
 						bulkreq.ubuffer, &done);
 	else	/* XFS_IOC_FSBULKSTAT */
-		error = xfs_bulkstat(mp, &inlast, &count,
-			(bulkstat_one_pf)xfs_bulkstat_one, NULL,
-			sizeof(xfs_bstat_t), bulkreq.ubuffer,
-			BULKSTAT_FG_QUICK, &done);
+		error = xfs_bulkstat(mp, &inlast, &count, xfs_bulkstat_one,
+				     sizeof(xfs_bstat_t), bulkreq.ubuffer,
+				     &done);
 
 	if (error)
 		return -error;
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index 9287135e9bfc..e1d8380b049d 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -237,15 +237,13 @@ xfs_bulkstat_one_compat(
 	xfs_ino_t	ino,		/* inode number to get data for */
 	void		__user *buffer,	/* buffer to place output in */
 	int		ubsize,		/* size of buffer */
-	void		*private_data,	/* my private data */
 	xfs_daddr_t	bno,		/* starting bno of inode cluster */
 	int		*ubused,	/* bytes used by me */
-	void		*dibuff,	/* on-disk inode buffer */
 	int		*stat)		/* BULKSTAT_RV_... */
 {
 	return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
 				    xfs_bulkstat_one_fmt_compat, bno,
-				    ubused, dibuff, stat);
+				    ubused, stat);
 }
 
 /* copied from xfs_ioctl.c */
@@ -298,13 +296,11 @@ xfs_compat_ioc_bulkstat(
 		int res;
 
 		error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
-				sizeof(compat_xfs_bstat_t),
-				NULL, 0, NULL, NULL, &res);
+				sizeof(compat_xfs_bstat_t), 0, NULL, &res);
 	} else if (cmd == XFS_IOC_FSBULKSTAT_32) {
 		error = xfs_bulkstat(mp, &inlast, &count,
-			xfs_bulkstat_one_compat, NULL,
-			sizeof(compat_xfs_bstat_t), bulkreq.ubuffer,
-			BULKSTAT_FG_QUICK, &done);
+			xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t),
+			bulkreq.ubuffer, &done);
 	} else
 		error = XFS_ERROR(EINVAL);
 	if (error)
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 2d8b7bc792c9..f19f94c4cb9f 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -1632,10 +1632,8 @@ xfs_qm_dqusage_adjust(
 	xfs_ino_t	ino,		/* inode number to get data for */
 	void		__user *buffer,	/* not used */
 	int		ubsize,		/* not used */
-	void		*private_data,	/* not used */
 	xfs_daddr_t	bno,		/* starting block of inode cluster */
 	int		*ubused,	/* not used */
-	void		*dip,		/* on-disk inode pointer (not used) */
 	int		*res)		/* result code value */
 {
 	xfs_inode_t	*ip;
@@ -1796,12 +1794,13 @@ xfs_qm_quotacheck(
 		 * Iterate thru all the inodes in the file system,
 		 * adjusting the corresponding dquot counters in core.
 		 */
-		if ((error = xfs_bulkstat(mp, &lastino, &count,
-				     xfs_qm_dqusage_adjust, NULL,
-				     structsz, NULL, BULKSTAT_FG_IGET, &done)))
+		error = xfs_bulkstat(mp, &lastino, &count,
+				     xfs_qm_dqusage_adjust,
+				     structsz, NULL, &done);
+		if (error)
 			break;
 
-	} while (! done);
+	} while (!done);
 
 	/*
 	 * We've made all the changes that we need to make incore.
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 92b002f1805f..99a2d8e0f173 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -1109,10 +1109,8 @@ xfs_qm_internalqcheck_adjust(
 	xfs_ino_t	ino,		/* inode number to get data for */
 	void		__user *buffer,	/* not used */
 	int		ubsize,		/* not used */
-	void		*private_data,	/* not used */
 	xfs_daddr_t	bno,		/* starting block of inode cluster */
 	int		*ubused,	/* not used */
-	void		*dip,		/* not used */
 	int		*res)		/* bulkstat result code */
 {
 	xfs_inode_t		*ip;
@@ -1205,15 +1203,15 @@ xfs_qm_internalqcheck(
 		 * Iterate thru all the inodes in the file system,
 		 * adjusting the corresponding dquot counters
 		 */
-		if ((error = xfs_bulkstat(mp, &lastino, &count,
-				 xfs_qm_internalqcheck_adjust, NULL,
-				 0, NULL, BULKSTAT_FG_IGET, &done))) {
+		error = xfs_bulkstat(mp, &lastino, &count,
+				 xfs_qm_internalqcheck_adjust,
+				 0, NULL, &done);
+		if (error) {
+			cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error);
 			break;
 		}
-	} while (! done);
-	if (error) {
-		cmn_err(CE_DEBUG, "Bulkstat returned error 0x%x", error);
-	}
+	} while (!done);
+
 	cmn_err(CE_DEBUG, "Checking results against system dquots");
 	for (i = 0; i < qmtest_hashmask; i++) {
 		xfs_dqtest_t	*d, *n;
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index b1b801e4a28e..83d7827793e4 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -49,24 +49,41 @@ xfs_internal_inum(
 		 (ino == mp->m_sb.sb_uquotino || ino == mp->m_sb.sb_gquotino)));
 }
 
-STATIC int
-xfs_bulkstat_one_iget(
-	xfs_mount_t	*mp,		/* mount point for filesystem */
-	xfs_ino_t	ino,		/* inode number to get data for */
-	xfs_daddr_t	bno,		/* starting bno of inode cluster */
-	xfs_bstat_t	*buf,		/* return buffer */
-	int		*stat)		/* BULKSTAT_RV_... */
+/*
+ * Return stat information for one inode.
+ * Return 0 if ok, else errno.
+ */
+int
+xfs_bulkstat_one_int(
+	struct xfs_mount	*mp,		/* mount point for filesystem */
+	xfs_ino_t		ino,		/* inode to get data for */
+	void __user		*buffer,	/* buffer to place output in */
+	int			ubsize,		/* size of buffer */
+	bulkstat_one_fmt_pf	formatter,	/* formatter, copy to user */
+	xfs_daddr_t		bno,		/* starting bno of cluster */
+	int			*ubused,	/* bytes used by me */
+	int			*stat)		/* BULKSTAT_RV_... */
 {
-	xfs_icdinode_t	*dic;	/* dinode core info pointer */
-	xfs_inode_t	*ip;		/* incore inode pointer */
-	struct inode	*inode;
-	int		error;
+	struct xfs_icdinode	*dic;		/* dinode core info pointer */
+	struct xfs_inode	*ip;		/* incore inode pointer */
+	struct inode		*inode;
+	struct xfs_bstat	*buf;		/* return buffer */
+	int			error = 0;	/* error value */
+
+	*stat = BULKSTAT_RV_NOTHING;
+
+	if (!buffer || xfs_internal_inum(mp, ino))
+		return XFS_ERROR(EINVAL);
+
+	buf = kmem_alloc(sizeof(*buf), KM_SLEEP | KM_MAYFAIL);
+	if (!buf)
+		return XFS_ERROR(ENOMEM);
 
 	error = xfs_iget(mp, NULL, ino,
 			 XFS_IGET_BULKSTAT, XFS_ILOCK_SHARED, &ip, bno);
 	if (error) {
 		*stat = BULKSTAT_RV_NOTHING;
-		return error;
+		goto out_free;
 	}
 
 	ASSERT(ip != NULL);
@@ -127,77 +144,16 @@ xfs_bulkstat_one_iget(
 		buf->bs_blocks = dic->di_nblocks + ip->i_delayed_blks;
 		break;
 	}
-
 	xfs_iput(ip, XFS_ILOCK_SHARED);
-	return error;
-}
 
-STATIC void
-xfs_bulkstat_one_dinode(
-	xfs_mount_t	*mp,		/* mount point for filesystem */
-	xfs_ino_t	ino,		/* inode number to get data for */
-	xfs_dinode_t	*dic,		/* dinode inode pointer */
-	xfs_bstat_t	*buf)		/* return buffer */
-{
-	/*
-	 * The inode format changed when we moved the link count and
-	 * made it 32 bits long.  If this is an old format inode,
-	 * convert it in memory to look like a new one.  If it gets
-	 * flushed to disk we will convert back before flushing or
-	 * logging it.  We zero out the new projid field and the old link
-	 * count field.  We'll handle clearing the pad field (the remains
-	 * of the old uuid field) when we actually convert the inode to
-	 * the new format. We don't change the version number so that we
-	 * can distinguish this from a real new format inode.
-	 */
-	if (dic->di_version == 1) {
-		buf->bs_nlink = be16_to_cpu(dic->di_onlink);
-		buf->bs_projid = 0;
-	} else {
-		buf->bs_nlink = be32_to_cpu(dic->di_nlink);
-		buf->bs_projid = be16_to_cpu(dic->di_projid);
-	}
+	error = formatter(buffer, ubsize, ubused, buf);
 
-	buf->bs_ino = ino;
-	buf->bs_mode = be16_to_cpu(dic->di_mode);
-	buf->bs_uid = be32_to_cpu(dic->di_uid);
-	buf->bs_gid = be32_to_cpu(dic->di_gid);
-	buf->bs_size = be64_to_cpu(dic->di_size);
-	buf->bs_atime.tv_sec = be32_to_cpu(dic->di_atime.t_sec);
-	buf->bs_atime.tv_nsec = be32_to_cpu(dic->di_atime.t_nsec);
-	buf->bs_mtime.tv_sec = be32_to_cpu(dic->di_mtime.t_sec);
-	buf->bs_mtime.tv_nsec = be32_to_cpu(dic->di_mtime.t_nsec);
-	buf->bs_ctime.tv_sec = be32_to_cpu(dic->di_ctime.t_sec);
-	buf->bs_ctime.tv_nsec = be32_to_cpu(dic->di_ctime.t_nsec);
-	buf->bs_xflags = xfs_dic2xflags(dic);
-	buf->bs_extsize = be32_to_cpu(dic->di_extsize) << mp->m_sb.sb_blocklog;
-	buf->bs_extents = be32_to_cpu(dic->di_nextents);
-	buf->bs_gen = be32_to_cpu(dic->di_gen);
-	memset(buf->bs_pad, 0, sizeof(buf->bs_pad));
-	buf->bs_dmevmask = be32_to_cpu(dic->di_dmevmask);
-	buf->bs_dmstate = be16_to_cpu(dic->di_dmstate);
-	buf->bs_aextents = be16_to_cpu(dic->di_anextents);
-	buf->bs_forkoff = XFS_DFORK_BOFF(dic);
+	if (!error)
+		*stat = BULKSTAT_RV_DIDONE;
 
-	switch (dic->di_format) {
-	case XFS_DINODE_FMT_DEV:
-		buf->bs_rdev = xfs_dinode_get_rdev(dic);
-		buf->bs_blksize = BLKDEV_IOSIZE;
-		buf->bs_blocks = 0;
-		break;
-	case XFS_DINODE_FMT_LOCAL:
-	case XFS_DINODE_FMT_UUID:
-		buf->bs_rdev = 0;
-		buf->bs_blksize = mp->m_sb.sb_blocksize;
-		buf->bs_blocks = 0;
-		break;
-	case XFS_DINODE_FMT_EXTENTS:
-	case XFS_DINODE_FMT_BTREE:
-		buf->bs_rdev = 0;
-		buf->bs_blksize = mp->m_sb.sb_blocksize;
-		buf->bs_blocks = be64_to_cpu(dic->di_nblocks);
-		break;
-	}
+ out_free:
+	kmem_free(buf);
+	return error;
 }
 
 /* Return 0 on success or positive error */
@@ -217,118 +173,19 @@ xfs_bulkstat_one_fmt(
 	return 0;
 }
 
-/*
- * Return stat information for one inode.
- * Return 0 if ok, else errno.
- */
-int		   	    		/* error status */
-xfs_bulkstat_one_int(
-	xfs_mount_t	*mp,		/* mount point for filesystem */
-	xfs_ino_t	ino,		/* inode number to get data for */
-	void		__user *buffer,	/* buffer to place output in */
-	int		ubsize,		/* size of buffer */
-	bulkstat_one_fmt_pf formatter,	/* formatter, copy to user */
-	xfs_daddr_t	bno,		/* starting bno of inode cluster */
-	int		*ubused,	/* bytes used by me */
-	void		*dibuff,	/* on-disk inode buffer */
-	int		*stat)		/* BULKSTAT_RV_... */
-{
-	xfs_bstat_t	*buf;		/* return buffer */
-	int		error = 0;	/* error value */
-	xfs_dinode_t	*dip;		/* dinode inode pointer */
-
-	dip = (xfs_dinode_t *)dibuff;
-	*stat = BULKSTAT_RV_NOTHING;
-
-	if (!buffer || xfs_internal_inum(mp, ino))
-		return XFS_ERROR(EINVAL);
-
-	buf = kmem_alloc(sizeof(*buf), KM_SLEEP);
-
-	if (dip == NULL) {
-		/* We're not being passed a pointer to a dinode.  This happens
-		 * if BULKSTAT_FG_IGET is selected.  Do the iget.
-		 */
-		error = xfs_bulkstat_one_iget(mp, ino, bno, buf, stat);
-		if (error)
-			goto out_free;
-	} else {
-		xfs_bulkstat_one_dinode(mp, ino, dip, buf);
-	}
-
-	error = formatter(buffer, ubsize, ubused, buf);
-	if (error)
-		goto out_free;
-
-	*stat = BULKSTAT_RV_DIDONE;
-
- out_free:
-	kmem_free(buf);
-	return error;
-}
-
 int
 xfs_bulkstat_one(
 	xfs_mount_t	*mp,		/* mount point for filesystem */
 	xfs_ino_t	ino,		/* inode number to get data for */
 	void		__user *buffer,	/* buffer to place output in */
 	int		ubsize,		/* size of buffer */
-	void		*private_data,	/* my private data */
 	xfs_daddr_t	bno,		/* starting bno of inode cluster */
 	int		*ubused,	/* bytes used by me */
-	void		*dibuff,	/* on-disk inode buffer */
 	int		*stat)		/* BULKSTAT_RV_... */
 {
 	return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
 				    xfs_bulkstat_one_fmt, bno,
-				    ubused, dibuff, stat);
-}
-
-/*
- * Test to see whether we can use the ondisk inode directly, based
- * on the given bulkstat flags, filling in dipp accordingly.
- * Returns zero if the inode is dodgey.
- */
-STATIC int
-xfs_bulkstat_use_dinode(
-	xfs_mount_t	*mp,
-	int		flags,
-	xfs_buf_t	*bp,
-	int		clustidx,
-	xfs_dinode_t	**dipp)
-{
-	xfs_dinode_t	*dip;
-	unsigned int	aformat;
-
-	*dipp = NULL;
-	if (!bp || (flags & BULKSTAT_FG_IGET))
-		return 1;
-	dip = (xfs_dinode_t *)
-			xfs_buf_offset(bp, clustidx << mp->m_sb.sb_inodelog);
-	/*
-	 * Check the buffer containing the on-disk inode for di_mode == 0.
-	 * This is to prevent xfs_bulkstat from picking up just reclaimed
-	 * inodes that have their in-core state initialized but not flushed
-	 * to disk yet. This is a temporary hack that would require a proper
-	 * fix in the future.
-	 */
-	if (be16_to_cpu(dip->di_magic) != XFS_DINODE_MAGIC ||
-	    !XFS_DINODE_GOOD_VERSION(dip->di_version) ||
-	    !dip->di_mode)
-		return 0;
-	if (flags & BULKSTAT_FG_QUICK) {
-		*dipp = dip;
-		return 1;
-	}
-	/* BULKSTAT_FG_INLINE: if attr fork is local, or not there, use it */
-	aformat = dip->di_aformat;
-	if ((XFS_DFORK_Q(dip) == 0) ||
-	    (aformat == XFS_DINODE_FMT_LOCAL) ||
-	    (aformat == XFS_DINODE_FMT_EXTENTS && !dip->di_anextents)) {
-		*dipp = dip;
-		return 1;
-	}
-	return 1;
+				    ubused, stat);
 }
 
 #define XFS_BULKSTAT_UBLEFT(ubleft)	((ubleft) >= statstruct_size)
@@ -342,10 +199,8 @@ xfs_bulkstat(
 	xfs_ino_t		*lastinop, /* last inode returned */
 	int			*ubcountp, /* size of buffer/count returned */
 	bulkstat_one_pf		formatter, /* func that'd fill a single buf */
-	void			*private_data,/* private data for formatter */
 	size_t			statstruct_size, /* sizeof struct filling */
 	char			__user *ubuffer, /* buffer with inode stats */
-	int			flags,	/* defined in xfs_itable.h */
 	int			*done)	/* 1 if there are more stats to get */
 {
 	xfs_agblock_t		agbno=0;/* allocation group block number */
@@ -380,14 +235,12 @@ xfs_bulkstat(
 	int			ubelem;	/* spaces used in user's buffer */
 	int			ubused;	/* bytes used by formatter */
 	xfs_buf_t		*bp;	/* ptr to on-disk inode cluster buf */
-	xfs_dinode_t		*dip;	/* ptr into bp for specific inode */
 
 	/*
 	 * Get the last inode value, see if there's nothing to do.
 	 */
 	ino = (xfs_ino_t)*lastinop;
 	lastino = ino;
-	dip = NULL;
 	agno = XFS_INO_TO_AGNO(mp, ino);
 	agino = XFS_INO_TO_AGINO(mp, ino);
 	if (agno >= mp->m_sb.sb_agcount ||
@@ -612,37 +465,6 @@ xfs_bulkstat(
 							irbp->ir_startino) +
 						((chunkidx & nimask) >>
 						 mp->m_sb.sb_inopblog);
-
-					if (flags & (BULKSTAT_FG_QUICK |
-						     BULKSTAT_FG_INLINE)) {
-						int offset;
-
-						ino = XFS_AGINO_TO_INO(mp, agno,
-								       agino);
-						bno = XFS_AGB_TO_DADDR(mp, agno,
-								       agbno);
-
-						/*
-						 * Get the inode cluster buffer
-						 */
-						if (bp)
-							xfs_buf_relse(bp);
-
-						error = xfs_inotobp(mp, NULL, ino, &dip,
-								    &bp, &offset,
-								    XFS_IGET_BULKSTAT);
-
-						if (!error)
-							clustidx = offset / mp->m_sb.sb_inodesize;
-						if (XFS_TEST_ERROR(error != 0,
-								   mp, XFS_ERRTAG_BULKSTAT_READ_CHUNK,
-								   XFS_RANDOM_BULKSTAT_READ_CHUNK)) {
-							bp = NULL;
-							ubleft = 0;
-							rval = error;
-							break;
-						}
-					}
 				}
 				ino = XFS_AGINO_TO_INO(mp, agno, agino);
 				bno = XFS_AGB_TO_DADDR(mp, agno, agbno);
@@ -658,35 +480,13 @@ xfs_bulkstat(
 				 * when the chunk is used up.
 				 */
 				irbp->ir_freecount++;
-				if (!xfs_bulkstat_use_dinode(mp, flags, bp,
-							     clustidx, &dip)) {
-					lastino = ino;
-					continue;
-				}
-				/*
-				 * If we need to do an iget, cannot hold bp.
-				 * Drop it, until starting the next cluster.
-				 */
-				if ((flags & BULKSTAT_FG_INLINE) && !dip) {
-					if (bp)
-						xfs_buf_relse(bp);
-					bp = NULL;
-				}
 
 				/*
 				 * Get the inode and fill in a single buffer.
-				 * BULKSTAT_FG_QUICK uses dip to fill it in.
-				 * BULKSTAT_FG_IGET uses igets.
-				 * BULKSTAT_FG_INLINE uses dip if we have an
-				 * inline attr fork, else igets.
-				 * See: xfs_bulkstat_one & xfs_dm_bulkstat_one.
-				 * This is also used to count inodes/blks, etc
-				 * in xfs_qm_quotacheck.
 				 */
 				ubused = statstruct_size;
-				error = formatter(mp, ino, ubufp,
-						ubleft, private_data,
-						bno, &ubused, dip, &fmterror);
+				error = formatter(mp, ino, ubufp, ubleft, bno,
+						  &ubused, &fmterror);
 				if (fmterror == BULKSTAT_RV_NOTHING) {
 					if (error && error != ENOENT &&
 						error != EINVAL) {
@@ -779,7 +579,7 @@ xfs_bulkstat_single(
 
 	ino = (xfs_ino_t)*lastinop;
 	error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t),
-				 NULL, 0, NULL, NULL, &res);
+				 0, NULL, &res);
 	if (error) {
 		/*
 		 * Special case way failed, do it the "long" way
@@ -788,8 +588,7 @@ xfs_bulkstat_single(
 		(*lastinop)--;
 		count = 1;
 		if (xfs_bulkstat(mp, lastinop, &count, xfs_bulkstat_one,
-				NULL, sizeof(xfs_bstat_t), buffer,
-				BULKSTAT_FG_IGET, done))
+				sizeof(xfs_bstat_t), buffer, done))
 			return error;
 		if (count == 0 || (xfs_ino_t)*lastinop != ino)
 			return error == EFSCORRUPTED ?
diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h
index 20792bf45946..fea03397a3ab 100644
--- a/fs/xfs/xfs_itable.h
+++ b/fs/xfs/xfs_itable.h
@@ -27,10 +27,8 @@ typedef int (*bulkstat_one_pf)(struct xfs_mount	*mp,
 			       xfs_ino_t	ino,
 			       void		__user *buffer,
 			       int		ubsize,
-			       void		*private_data,
 			       xfs_daddr_t	bno,
 			       int		*ubused,
-			       void		*dip,
 			       int		*stat);
 
 /*
@@ -40,13 +38,6 @@ typedef int (*bulkstat_one_pf)(struct xfs_mount	*mp,
 #define BULKSTAT_RV_DIDONE	1
 #define BULKSTAT_RV_GIVEUP	2
 
-/*
- * Values for bulkstat flag argument.
- */
-#define BULKSTAT_FG_IGET	0x1	/* Go through the buffer cache */
-#define BULKSTAT_FG_QUICK	0x2	/* No iget, walk the dinode cluster */
-#define BULKSTAT_FG_INLINE	0x4	/* No iget if inline attrs */
-
 /*
  * Return stat information in bulk (by-inode) for the filesystem.
  */
@@ -56,10 +47,8 @@ xfs_bulkstat(
 	xfs_ino_t	*lastino,	/* last inode returned */
 	int		*count,		/* size of buffer/count returned */
 	bulkstat_one_pf formatter,	/* func that'd fill a single buf */
-	void		*private_data,	/* private data for formatter */
 	size_t		statstruct_size,/* sizeof struct that we're filling */
 	char		__user *ubuffer,/* buffer with inode stats */
-	int		flags,		/* flag to control access method */
 	int		*done);		/* 1 if there are more stats to get */
 
 int
@@ -84,7 +73,6 @@ xfs_bulkstat_one_int(
 	bulkstat_one_fmt_pf	formatter,
 	xfs_daddr_t		bno,
 	int			*ubused,
-	void			*dibuff,
 	int			*stat);
 
 int
@@ -93,10 +81,8 @@ xfs_bulkstat_one(
 	xfs_ino_t		ino,
 	void			__user *buffer,
 	int			ubsize,
-	void			*private_data,
 	xfs_daddr_t		bno,
 	int			*ubused,
-	void			*dibuff,
 	int			*stat);
 
 typedef int (*inumbers_fmt_pf)(
-- 
cgit v1.2.3-55-g7522


From 686d363786a53ed28ee875b84ef24e6d5126ef6f Mon Sep 17 00:00:00 2001
From: Michael S. Tsirkin
Date: Thu, 10 Jun 2010 18:16:11 +0300
Subject: virtio: return ENOMEM on out of memory

add_buf returns ring size on out of memory,
this is not what devices expect.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org # .34.x
---
 drivers/virtio/virtio_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 1ca88908723b..afe7e21dd0ae 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -119,7 +119,7 @@ static int vring_add_indirect(struct vring_virtqueue *vq,
 
 	desc = kmalloc((out + in) * sizeof(struct vring_desc), gfp);
 	if (!desc)
-		return vq->vring.num;
+		return -ENOMEM;
 
 	/* Transfer entries from the sg list into the indirect page */
 	for (i = 0; i < out; i++) {
-- 
cgit v1.2.3-55-g7522


From b03214d559471359e2a85ae256686381d0672f29 Mon Sep 17 00:00:00 2001
From: Michael S. Tsirkin
Date: Wed, 23 Jun 2010 22:49:06 -0600
Subject: virtio-pci: disable msi at startup

virtio-pci resets the device at startup by writing to the status
register, but this does not clear the pci config space,
specifically msi enable status which affects register
layout.

This breaks things like kdump when they try to use e.g. virtio-blk.

Fix by forcing msi off at startup. Since pci.c already has
a routine to do this, we export and use it instead of duplicating code.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: linux-pci@vger.kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
---
 drivers/pci/pci.c           | 1 +
 drivers/virtio/virtio_pci.c | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 60f30e7f1c8c..740fb4ea9669 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2292,6 +2292,7 @@ void pci_msi_off(struct pci_dev *dev)
 		pci_write_config_word(dev, pos + PCI_MSIX_FLAGS, control);
 	}
 }
+EXPORT_SYMBOL_GPL(pci_msi_off);
 
 #ifndef HAVE_ARCH_PCI_SET_DMA_MAX_SEGMENT_SIZE
 int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size)
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 95896f387927..ef8d9d558fc7 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -636,6 +636,9 @@ static int __devinit virtio_pci_probe(struct pci_dev *pci_dev,
 	INIT_LIST_HEAD(&vp_dev->virtqueues);
 	spin_lock_init(&vp_dev->lock);
 
+	/* Disable MSI/MSIX to bring device to a known good state. */
+	pci_msi_off(pci_dev);
+
 	/* enable the device */
 	err = pci_enable_device(pci_dev);
 	if (err)
-- 
cgit v1.2.3-55-g7522


From f3b577dec1f2ce32d2db6d2ca6badff7002512af Mon Sep 17 00:00:00 2001
From: Daniel J Blueman
Date: Tue, 1 Jun 2010 14:06:13 +0100
Subject: rcu: apply RCU protection to wake_affine()

The task_group() function returns a pointer that must be protected
by either RCU, the ->alloc_lock, or the cgroup lock (see the
rcu_dereference_check() in task_subsys_state(), which is invoked by
task_group()).  The wake_affine() function currently does none of these,
which means that a concurrent update would be within its rights to free
the structure returned by task_group().  Because wake_affine() uses this
structure only to compute load-balancing heuristics, there is no reason
to acquire either of the two locks.

Therefore, this commit introduces an RCU read-side critical section that
starts before the first call to task_group() and ends after the last use
of the "tg" pointer returned from task_group().  Thanks to Li Zefan for
pointing out the need to extend the RCU read-side critical section from
that proposed by the original patch.

Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/sched_fair.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index eed35eded602..a878b5332daa 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -1240,6 +1240,7 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p, int sync)
 	 * effect of the currently running task from the load
 	 * of the current CPU:
 	 */
+	rcu_read_lock();
 	if (sync) {
 		tg = task_group(current);
 		weight = current->se.load.weight;
@@ -1275,6 +1276,7 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p, int sync)
 		balanced = this_eff_load <= prev_eff_load;
 	} else
 		balanced = true;
+	rcu_read_unlock();
 
 	/*
 	 * If the currently running task will sleep within
-- 
cgit v1.2.3-55-g7522


From 94bfa3b6692c7a3f6f119596724204ec975d3ef0 Mon Sep 17 00:00:00 2001
From: Paul E. McKenney
Date: Mon, 7 Jun 2010 17:09:45 -0700
Subject: idr: fix RCU lockdep splat in idr_get_next()

Convert to rcu_dereference_raw() given that many callers may have many
different locking models.

Located-by: Miles Lane <miles.lane@gmail.com>
Tested-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 lib/idr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/idr.c b/lib/idr.c
index c1a206901761..7f1a4f0acf50 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -602,7 +602,7 @@ void *idr_get_next(struct idr *idp, int *nextidp)
 	/* find first ent */
 	n = idp->layers * IDR_BITS;
 	max = 1 << n;
-	p = rcu_dereference(idp->top);
+	p = rcu_dereference_raw(idp->top);
 	if (!p)
 		return NULL;
 
@@ -610,7 +610,7 @@ void *idr_get_next(struct idr *idp, int *nextidp)
 		while (n > 0 && p) {
 			n -= IDR_BITS;
 			*paa++ = p;
-			p = rcu_dereference(p->ary[(id >> n) & IDR_MASK]);
+			p = rcu_dereference_raw(p->ary[(id >> n) & IDR_MASK]);
 		}
 
 		if (p) {
-- 
cgit v1.2.3-55-g7522


From 8f1c14b2e3b1805d3e9e6a306d07f5371ea703a7 Mon Sep 17 00:00:00 2001
From: Eric Dumazet
Date: Wed, 23 Jun 2010 00:32:03 +0000
Subject: snmp: fix SNMP_ADD_STATS()

commit aa2ea0586d9d (tcp: fix outsegs stat for TSO segments) incorrectly
assumed SNMP_ADD_STATS() was used from BH context.

Fix this using mib[!in_softirq()] instead of mib[0]

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/snmp.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/snmp.h b/include/net/snmp.h
index 92456f1035f5..899003d18db9 100644
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -134,7 +134,7 @@ struct linux_xfrm_mib {
 #define SNMP_ADD_STATS_USER(mib, field, addend)	\
 			this_cpu_add(mib[1]->mibs[field], addend)
 #define SNMP_ADD_STATS(mib, field, addend)	\
-			this_cpu_add(mib[0]->mibs[field], addend)
+			this_cpu_add(mib[!in_softirq()]->mibs[field], addend)
 /*
  * Use "__typeof__(*mib[0]) *ptr" instead of "__typeof__(mib[0]) ptr"
  * to make @ptr a non-percpu pointer.
-- 
cgit v1.2.3-55-g7522


From 06aeb78b85d8c04af03eb37353aa0df98d3db170 Mon Sep 17 00:00:00 2001
From: Anirban Chakraborty
Date: Wed, 23 Jun 2010 11:49:42 -0700
Subject: net: add dependency on fw class module to qlcnic and netxen_nic

netxen_nic and qlcnic driver depends on firmware_class module.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 2decc597bda7..ce2fcdd4ab90 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2754,6 +2754,7 @@ config MYRI10GE_DCA
 config NETXEN_NIC
 	tristate "NetXen Multi port (1/10) Gigabit Ethernet NIC"
 	depends on PCI
+	select FW_LOADER
 	help
 	  This enables the support for NetXen's Gigabit Ethernet card.
 
@@ -2819,6 +2820,7 @@ config BNX2X
 config QLCNIC
 	tristate "QLOGIC QLCNIC 1/10Gb Converged Ethernet NIC Support"
 	depends on PCI
+	select FW_LOADER
 	help
 	  This driver supports QLogic QLE8240 and QLE8242 Converged Ethernet
 	  devices.
-- 
cgit v1.2.3-55-g7522


From 6b2a541db58dba5860ccbcfaf36caee064b8a9fd Mon Sep 17 00:00:00 2001
From: Dmitry Kravkov
Date: Wed, 23 Jun 2010 11:57:09 -0700
Subject: cnic: Disable statistics initialization for eth clients that do not
 support statistics

Disable statistics initialization for eth clients that do not support
 statistics. This prevents memory corruption on bnx2x hw.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/cnic.c | 55 +++++++++++++++++++++++++++++++++---------------------
 1 file changed, 34 insertions(+), 21 deletions(-)

diff --git a/drivers/net/cnic.c b/drivers/net/cnic.c
index fe925663d39a..80471269977a 100644
--- a/drivers/net/cnic.c
+++ b/drivers/net/cnic.c
@@ -3919,8 +3919,9 @@ static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev)
 		HC_INDEX_DEF_C_ETH_ISCSI_CQ_CONS;
 	context->cstorm_st_context.status_block_id = BNX2X_DEF_SB_ID;
 
-	context->xstorm_st_context.statistics_data = (cli |
-				XSTORM_ETH_ST_CONTEXT_STATISTICS_ENABLE);
+	if (cli < MAX_X_STAT_COUNTER_ID)
+		context->xstorm_st_context.statistics_data = cli |
+				XSTORM_ETH_ST_CONTEXT_STATISTICS_ENABLE;
 
 	context->xstorm_ag_context.cdu_reserved =
 		CDU_RSRVD_VALUE_TYPE_A(BNX2X_HW_CID(BNX2X_ISCSI_L2_CID, func),
@@ -3928,10 +3929,12 @@ static void cnic_init_bnx2x_tx_ring(struct cnic_dev *dev)
 					ETH_CONNECTION_TYPE);
 
 	/* reset xstorm per client statistics */
-	val = BAR_XSTRORM_INTMEM +
-	      XSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
-	for (i = 0; i < sizeof(struct xstorm_per_client_stats) / 4; i++)
-		CNIC_WR(dev, val + i * 4, 0);
+	if (cli < MAX_X_STAT_COUNTER_ID) {
+		val = BAR_XSTRORM_INTMEM +
+		      XSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
+		for (i = 0; i < sizeof(struct xstorm_per_client_stats) / 4; i++)
+			CNIC_WR(dev, val + i * 4, 0);
+	}
 
 	cp->tx_cons_ptr =
 		&cp->bnx2x_def_status_blk->c_def_status_block.index_values[
@@ -3978,9 +3981,11 @@ static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev)
 						BNX2X_ISCSI_RX_SB_INDEX_NUM;
 	context->ustorm_st_context.common.clientId = cli;
 	context->ustorm_st_context.common.status_block_id = BNX2X_DEF_SB_ID;
-	context->ustorm_st_context.common.flags =
-		USTORM_ETH_ST_CONTEXT_CONFIG_ENABLE_STATISTICS;
-	context->ustorm_st_context.common.statistics_counter_id = cli;
+	if (cli < MAX_U_STAT_COUNTER_ID) {
+		context->ustorm_st_context.common.flags =
+			USTORM_ETH_ST_CONTEXT_CONFIG_ENABLE_STATISTICS;
+		context->ustorm_st_context.common.statistics_counter_id = cli;
+	}
 	context->ustorm_st_context.common.mc_alignment_log_size = 0;
 	context->ustorm_st_context.common.bd_buff_size =
 						cp->l2_single_buf_size;
@@ -4011,10 +4016,13 @@ static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev)
 
 	/* client tstorm info */
 	tstorm_client.mtu = cp->l2_single_buf_size - 14;
-	tstorm_client.config_flags =
-			(TSTORM_ETH_CLIENT_CONFIG_E1HOV_REM_ENABLE |
-			TSTORM_ETH_CLIENT_CONFIG_STATSITICS_ENABLE);
-	tstorm_client.statistics_counter_id = cli;
+	tstorm_client.config_flags = TSTORM_ETH_CLIENT_CONFIG_E1HOV_REM_ENABLE;
+
+	if (cli < MAX_T_STAT_COUNTER_ID) {
+		tstorm_client.config_flags |=
+				TSTORM_ETH_CLIENT_CONFIG_STATSITICS_ENABLE;
+		tstorm_client.statistics_counter_id = cli;
+	}
 
 	CNIC_WR(dev, BAR_TSTRORM_INTMEM +
 		   TSTORM_CLIENT_CONFIG_OFFSET(port, cli),
@@ -4024,16 +4032,21 @@ static void cnic_init_bnx2x_rx_ring(struct cnic_dev *dev)
 		   ((u32 *)&tstorm_client)[1]);
 
 	/* reset tstorm per client statistics */
-	val = BAR_TSTRORM_INTMEM +
-	      TSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
-	for (i = 0; i < sizeof(struct tstorm_per_client_stats) / 4; i++)
-		CNIC_WR(dev, val + i * 4, 0);
+	if (cli < MAX_T_STAT_COUNTER_ID) {
+
+		val = BAR_TSTRORM_INTMEM +
+		      TSTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
+		for (i = 0; i < sizeof(struct tstorm_per_client_stats) / 4; i++)
+			CNIC_WR(dev, val + i * 4, 0);
+	}
 
 	/* reset ustorm per client statistics */
-	val = BAR_USTRORM_INTMEM +
-	      USTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
-	for (i = 0; i < sizeof(struct ustorm_per_client_stats) / 4; i++)
-		CNIC_WR(dev, val + i * 4, 0);
+	if (cli < MAX_U_STAT_COUNTER_ID) {
+		val = BAR_USTRORM_INTMEM +
+		      USTORM_PER_COUNTER_ID_STATS_OFFSET(port, cli);
+		for (i = 0; i < sizeof(struct ustorm_per_client_stats) / 4; i++)
+			CNIC_WR(dev, val + i * 4, 0);
+	}
 
 	cp->rx_cons_ptr =
 		&cp->bnx2x_def_status_blk->u_def_status_block.index_values[
-- 
cgit v1.2.3-55-g7522


From 51223df6c33d2d774429aef5fe8ae666401124b0 Mon Sep 17 00:00:00 2001
From: Jeff Layton
Date: Sun, 6 Jun 2010 08:05:58 -0400
Subject: MAINTAINERS: change mailing list address for CIFS

We're moving the mailing list to linux-cifs@vger.kernel.org.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
---
 MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 6d119c98b89b..de77577840ab 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1581,7 +1581,7 @@ F:	include/linux/coda*.h
 
 COMMON INTERNET FILE SYSTEM (CIFS)
 M:	Steve French <sfrench@samba.org>
-L:	linux-cifs-client@lists.samba.org (moderated for non-subscribers)
+L:	linux-cifs@vger.kernel.org
 L:	samba-technical@lists.samba.org (moderated for non-subscribers)
 W:	http://linux-cifs.samba.org/
 Q:	http://patchwork.ozlabs.org/project/linux-cifs-client/list/
-- 
cgit v1.2.3-55-g7522


From 38000a94a902e94ca8b5498f7871c6316de8957a Mon Sep 17 00:00:00 2001
From: Brandon Philips
Date: Wed, 16 Jun 2010 16:21:58 +0000
Subject: sky2: enable rx/tx in sky2_phy_reinit()

sky2_phy_reinit is called by the ethtool helpers sky2_set_settings,
sky2_nway_reset and sky2_set_pauseparam when netif_running.

However, at the end of sky2_phy_init GM_GP_CTRL has GM_GPCR_RX_ENA and
GM_GPCR_TX_ENA cleared. So, doing these commands causes the device to
stop working:

$ ethtool -r eth0
$ ethtool -A eth0 autoneg off

Fix this issue by enabling Rx/Tx after running sky2_phy_init in
sky2_phy_reinit.

Signed-off-by: Brandon Philips <bphilips@suse.de>
Tested-by: Brandon Philips <bphilips@suse.de>
Cc: stable@kernel.org
Tested-by: Mike McCormack <mikem@ring3k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/sky2.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index 2111c7bbf578..7985165e84fc 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -717,11 +717,24 @@ static void sky2_phy_power_down(struct sky2_hw *hw, unsigned port)
 	sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF);
 }
 
+/* Enable Rx/Tx */
+static void sky2_enable_rx_tx(struct sky2_port *sky2)
+{
+	struct sky2_hw *hw = sky2->hw;
+	unsigned port = sky2->port;
+	u16 reg;
+
+	reg = gma_read16(hw, port, GM_GP_CTRL);
+	reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
+	gma_write16(hw, port, GM_GP_CTRL, reg);
+}
+
 /* Force a renegotiation */
 static void sky2_phy_reinit(struct sky2_port *sky2)
 {
 	spin_lock_bh(&sky2->phy_lock);
 	sky2_phy_init(sky2->hw, sky2->port);
+	sky2_enable_rx_tx(sky2);
 	spin_unlock_bh(&sky2->phy_lock);
 }
 
@@ -2040,7 +2053,6 @@ static void sky2_link_up(struct sky2_port *sky2)
 {
 	struct sky2_hw *hw = sky2->hw;
 	unsigned port = sky2->port;
-	u16 reg;
 	static const char *fc_name[] = {
 		[FC_NONE]	= "none",
 		[FC_TX]		= "tx",
@@ -2048,10 +2060,7 @@ static void sky2_link_up(struct sky2_port *sky2)
 		[FC_BOTH]	= "both",
 	};
 
-	/* enable Rx/Tx */
-	reg = gma_read16(hw, port, GM_GP_CTRL);
-	reg |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA;
-	gma_write16(hw, port, GM_GP_CTRL, reg);
+	sky2_enable_rx_tx(sky2);
 
 	gm_phy_write(hw, port, PHY_MARV_INT_MASK, PHY_M_DEF_MSK);
 
-- 
cgit v1.2.3-55-g7522


From 8695159967957015f8dfb49315d6f88e111d90e0 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra
Date: Tue, 22 Jun 2010 11:44:53 +0200
Subject: sched: silence PROVE_RCU in sched_fork()

Because cgroup_fork() is ran before sched_fork() [ from copy_process() ]
and the child's pid is not yet visible the child is pinned to its
cgroup. Therefore we can silence this warning.

A nicer solution would be moving cgroup_fork() to right after
dup_task_struct() and exclude PF_STARTING from task_subsys_state().

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/sched.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/kernel/sched.c b/kernel/sched.c
index f8b8996228dd..a2d215d132f6 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2494,7 +2494,16 @@ void sched_fork(struct task_struct *p, int clone_flags)
 	if (p->sched_class->task_fork)
 		p->sched_class->task_fork(p);
 
+	/*
+	 * The child is not yet in the pid-hash so no cgroup attach races,
+	 * and the cgroup is pinned to this child due to cgroup_fork()
+	 * is ran before sched_fork().
+	 *
+	 * Silence PROVE_RCU.
+	 */
+	rcu_read_lock();
 	set_task_cpu(p, cpu);
+	rcu_read_unlock();
 
 #if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
 	if (likely(sched_info_on()))
-- 
cgit v1.2.3-55-g7522


From dc75925d67950889b79df1cc1518c21ec678df6c Mon Sep 17 00:00:00 2001
From: Benoit Cousson
Date: Wed, 23 Jun 2010 18:15:12 -0600
Subject: OMAP: hwmod: Fix the missing braces

As reported by Sergei, a couple of braces were missing after
the WARN removal patch.

[07/22] OMAP: hwmod: Replace WARN by pr_warning if clock lookup failed

https://patchwork.kernel.org/patch/100756/

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
[paul@pwsan.com: fixed patch description per Anand's E-mail]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: Anand Gadiyar <gadiyar@ti.com>
---
 arch/arm/mach-omap2/omap_hwmod.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 95c9a5f774e1..b7a4133267d8 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -409,10 +409,11 @@ static int _init_main_clk(struct omap_hwmod *oh)
 		return 0;
 
 	oh->_clk = omap_clk_get_by_name(oh->main_clk);
-	if (!oh->_clk)
+	if (!oh->_clk) {
 		pr_warning("omap_hwmod: %s: cannot clk_get main_clk %s\n",
 			   oh->name, oh->main_clk);
 		return -EINVAL;
+	}
 
 	if (!oh->_clk->clkdm)
 		pr_warning("omap_hwmod: %s: missing clockdomain for %s.\n",
@@ -444,10 +445,11 @@ static int _init_interface_clks(struct omap_hwmod *oh)
 			continue;
 
 		c = omap_clk_get_by_name(os->clk);
-		if (!c)
+		if (!c) {
 			pr_warning("omap_hwmod: %s: cannot clk_get interface_clk %s\n",
 				   oh->name, os->clk);
 			ret = -EINVAL;
+		}
 		os->_clk = c;
 	}
 
@@ -470,10 +472,11 @@ static int _init_opt_clks(struct omap_hwmod *oh)
 
 	for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++) {
 		c = omap_clk_get_by_name(oc->clk);
-		if (!c)
+		if (!c) {
 			pr_warning("omap_hwmod: %s: cannot clk_get opt_clk %s\n",
 				   oh->name, oc->clk);
 			ret = -EINVAL;
+		}
 		oc->_clk = c;
 	}
 
-- 
cgit v1.2.3-55-g7522


From 7124fe0a5b619d65b739477b3b55a20bf805b06d Mon Sep 17 00:00:00 2001
From: Dave Chinner
Date: Thu, 24 Jun 2010 11:15:33 +1000
Subject: xfs: validate untrusted inode numbers during lookup

When we decode a handle or do a bulkstat lookup, we are using an
inode number we cannot trust to be valid. If we are deleting inode
chunks from disk (default noikeep mode), then we cannot trust the on
disk inode buffer for any given inode number to correctly reflect
whether the inode has been unlinked as the di_mode nor the
generation number may have been updated on disk.

This is due to the fact that when we delete an inode chunk, we do
not write the clusters back to disk when they are removed - instead
we mark them stale to avoid them being written back potentially over
the top of something that has been subsequently allocated at that
location. The result is that we can have locations of disk that look
like they contain valid inodes but in reality do not. Hence we
cannot simply convert the inode number to a block number and read
the location from disk to determine if the inode is valid or not.

As a result, and XFS_IGET_BULKSTAT lookup needs to actually look the
inode up in the inode allocation btree to determine if the inode
number is valid or not.

It should be noted even on ikeep filesystems, there is the
possibility that blocks on disk may look like valid inode clusters.
e.g. if there are filesystem images hosted on the filesystem. Hence
even for ikeep filesystems we really need to validate that the inode
number is valid before issuing the inode buffer read.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/xfs_ialloc.c | 121 +++++++++++++++++++++++++++++++++-------------------
 1 file changed, 78 insertions(+), 43 deletions(-)

diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 9d884c127bb9..0c946c8e05da 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -1203,6 +1203,63 @@ error0:
 	return error;
 }
 
+STATIC int
+xfs_imap_lookup(
+	struct xfs_mount	*mp,
+	struct xfs_trans	*tp,
+	xfs_agnumber_t		agno,
+	xfs_agino_t		agino,
+	xfs_agblock_t		agbno,
+	xfs_agblock_t		*chunk_agbno,
+	xfs_agblock_t		*offset_agbno,
+	int			flags)
+{
+	struct xfs_inobt_rec_incore rec;
+	struct xfs_btree_cur	*cur;
+	struct xfs_buf		*agbp;
+	xfs_agino_t		startino;
+	int			error;
+	int			i;
+
+	error = xfs_ialloc_read_agi(mp, tp, agno, &agbp);
+	if (error) {
+		xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: "
+				"xfs_ialloc_read_agi() returned "
+				"error %d, agno %d",
+				error, agno);
+		return error;
+	}
+
+	/*
+	 * derive and lookup the exact inode record for the given agino. If the
+	 * record cannot be found, then it's an invalid inode number and we
+	 * should abort.
+	 */
+	cur = xfs_inobt_init_cursor(mp, tp, agbp, agno);
+	startino = agino & ~(XFS_IALLOC_INODES(mp) - 1);
+	error = xfs_inobt_lookup(cur, startino, XFS_LOOKUP_EQ, &i);
+	if (!error) {
+		if (i)
+			error = xfs_inobt_get_rec(cur, &rec, &i);
+		if (!error && i == 0)
+			error = EINVAL;
+	}
+
+	xfs_trans_brelse(tp, agbp);
+	xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+	if (error)
+		return error;
+
+	/* for untrusted inodes check it is allocated first */
+	if ((flags & XFS_IGET_BULKSTAT) &&
+	    (rec.ir_free & XFS_INOBT_MASK(agino - rec.ir_startino)))
+		return EINVAL;
+
+	*chunk_agbno = XFS_AGINO_TO_AGBNO(mp, rec.ir_startino);
+	*offset_agbno = agbno - *chunk_agbno;
+	return 0;
+}
+
 /*
  * Return the location of the inode in imap, for mapping it into a buffer.
  */
@@ -1263,6 +1320,23 @@ xfs_imap(
 		return XFS_ERROR(EINVAL);
 	}
 
+	blks_per_cluster = XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_blocklog;
+
+	/*
+	 * For bulkstat and handle lookups, we have an untrusted inode number
+	 * that we have to verify is valid. We cannot do this just by reading
+	 * the inode buffer as it may have been unlinked and removed leaving
+	 * inodes in stale state on disk. Hence we have to do a btree lookup
+	 * in all cases where an untrusted inode number is passed.
+	 */
+	if (flags & XFS_IGET_BULKSTAT) {
+		error = xfs_imap_lookup(mp, tp, agno, agino, agbno,
+					&chunk_agbno, &offset_agbno, flags);
+		if (error)
+			return error;
+		goto out_map;
+	}
+
 	/*
 	 * If the inode cluster size is the same as the blocksize or
 	 * smaller we get to the buffer by simple arithmetics.
@@ -1277,10 +1351,8 @@ xfs_imap(
 		return 0;
 	}
 
-	blks_per_cluster = XFS_INODE_CLUSTER_SIZE(mp) >> mp->m_sb.sb_blocklog;
-
 	/*
-	 * If we get a block number passed from bulkstat we can use it to
+	 * If we get a block number passed we can use it to
 	 * find the buffer easily.
 	 */
 	if (imap->im_blkno) {
@@ -1304,50 +1376,13 @@ xfs_imap(
 		offset_agbno = agbno & mp->m_inoalign_mask;
 		chunk_agbno = agbno - offset_agbno;
 	} else {
-		xfs_btree_cur_t	*cur;	/* inode btree cursor */
-		xfs_inobt_rec_incore_t chunk_rec;
-		xfs_buf_t	*agbp;	/* agi buffer */
-		int		i;	/* temp state */
-
-		error = xfs_ialloc_read_agi(mp, tp, agno, &agbp);
-		if (error) {
-			xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: "
-					"xfs_ialloc_read_agi() returned "
-					"error %d, agno %d",
-					error, agno);
-			return error;
-		}
-
-		cur = xfs_inobt_init_cursor(mp, tp, agbp, agno);
-		error = xfs_inobt_lookup(cur, agino, XFS_LOOKUP_LE, &i);
-		if (error) {
-			xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: "
-					"xfs_inobt_lookup() failed");
-			goto error0;
-		}
-
-		error = xfs_inobt_get_rec(cur, &chunk_rec, &i);
-		if (error) {
-			xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: "
-					"xfs_inobt_get_rec() failed");
-			goto error0;
-		}
-		if (i == 0) {
-#ifdef DEBUG
-			xfs_fs_cmn_err(CE_ALERT, mp, "xfs_imap: "
-					"xfs_inobt_get_rec() failed");
-#endif /* DEBUG */
-			error = XFS_ERROR(EINVAL);
-		}
- error0:
-		xfs_trans_brelse(tp, agbp);
-		xfs_btree_del_cursor(cur, XFS_BTREE_NOERROR);
+		error = xfs_imap_lookup(mp, tp, agno, agino, agbno,
+					&chunk_agbno, &offset_agbno, flags);
 		if (error)
 			return error;
-		chunk_agbno = XFS_AGINO_TO_AGBNO(mp, chunk_rec.ir_startino);
-		offset_agbno = agbno - chunk_agbno;
 	}
 
+out_map:
 	ASSERT(agbno >= chunk_agbno);
 	cluster_agbno = chunk_agbno +
 		((offset_agbno / blks_per_cluster) * blks_per_cluster);
-- 
cgit v1.2.3-55-g7522


From 1920779e67cbf5ea8afef317777c5bf2b8096188 Mon Sep 17 00:00:00 2001
From: Dave Chinner
Date: Thu, 24 Jun 2010 11:15:47 +1000
Subject: xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED

Inode numbers may come from somewhere external to the filesystem
(e.g. file handles, bulkstat information) and so are inherently
untrusted. Rename the flag we use for these lookups to make it
obvious we are doing a lookup of an untrusted inode number and need
to verify it completely before trying to read it from disk.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/linux-2.6/xfs_export.c |  9 ++++-----
 fs/xfs/xfs_ialloc.c           | 11 +++++++----
 fs/xfs/xfs_inode.c            |  2 +-
 fs/xfs/xfs_inode.h            |  2 +-
 fs/xfs/xfs_itable.c           |  2 +-
 5 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c
index 846b75aeb2ab..92c84a19cc9e 100644
--- a/fs/xfs/linux-2.6/xfs_export.c
+++ b/fs/xfs/linux-2.6/xfs_export.c
@@ -128,12 +128,11 @@ xfs_nfs_get_inode(
 		return ERR_PTR(-ESTALE);
 
 	/*
-	 * The XFS_IGET_BULKSTAT means that an invalid inode number is just
-	 * fine and not an indication of a corrupted filesystem.  Because
-	 * clients can send any kind of invalid file handle, e.g. after
-	 * a restore on the server we have to deal with this case gracefully.
+	 * The XFS_IGET_UNTRUSTED means that an invalid inode number is just
+	 * fine and not an indication of a corrupted filesystem as clients can
+	 * send invalid file handles and we have to handle it gracefully..
 	 */
-	error = xfs_iget(mp, NULL, ino, XFS_IGET_BULKSTAT,
+	error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED,
 			 XFS_ILOCK_SHARED, &ip, 0);
 	if (error) {
 		/*
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 0c946c8e05da..d8fd36685eb9 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -1251,7 +1251,7 @@ xfs_imap_lookup(
 		return error;
 
 	/* for untrusted inodes check it is allocated first */
-	if ((flags & XFS_IGET_BULKSTAT) &&
+	if ((flags & XFS_IGET_UNTRUSTED) &&
 	    (rec.ir_free & XFS_INOBT_MASK(agino - rec.ir_startino)))
 		return EINVAL;
 
@@ -1292,8 +1292,11 @@ xfs_imap(
 	if (agno >= mp->m_sb.sb_agcount || agbno >= mp->m_sb.sb_agblocks ||
 	    ino != XFS_AGINO_TO_INO(mp, agno, agino)) {
 #ifdef DEBUG
-		/* no diagnostics for bulkstat, ino comes from userspace */
-		if (flags & XFS_IGET_BULKSTAT)
+		/*
+		 * Don't output diagnostic information for untrusted inodes
+		 * as they can be invalid without implying corruption.
+		 */
+		if (flags & XFS_IGET_UNTRUSTED)
 			return XFS_ERROR(EINVAL);
 		if (agno >= mp->m_sb.sb_agcount) {
 			xfs_fs_cmn_err(CE_ALERT, mp,
@@ -1329,7 +1332,7 @@ xfs_imap(
 	 * inodes in stale state on disk. Hence we have to do a btree lookup
 	 * in all cases where an untrusted inode number is passed.
 	 */
-	if (flags & XFS_IGET_BULKSTAT) {
+	if (flags & XFS_IGET_UNTRUSTED) {
 		error = xfs_imap_lookup(mp, tp, agno, agino, agbno,
 					&chunk_agbno, &offset_agbno, flags);
 		if (error)
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index d53c39de7d05..12c277a5e98a 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -177,7 +177,7 @@ xfs_imap_to_bp(
 		if (unlikely(XFS_TEST_ERROR(!di_ok, mp,
 						XFS_ERRTAG_ITOBP_INOTOBP,
 						XFS_RANDOM_ITOBP_INOTOBP))) {
-			if (iget_flags & XFS_IGET_BULKSTAT) {
+			if (iget_flags & XFS_IGET_UNTRUSTED) {
 				xfs_trans_brelse(tp, bp);
 				return XFS_ERROR(EINVAL);
 			}
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 9965e40a4615..6b31b38244ab 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -500,7 +500,7 @@ do { \
  * Flags for xfs_iget()
  */
 #define XFS_IGET_CREATE		0x1
-#define XFS_IGET_BULKSTAT	0x2
+#define XFS_IGET_UNTRUSTED	0x2
 
 int		xfs_inotobp(struct xfs_mount *, struct xfs_trans *,
 			    xfs_ino_t, struct xfs_dinode **,
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 83d7827793e4..2acd12fd3f25 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -80,7 +80,7 @@ xfs_bulkstat_one_int(
 		return XFS_ERROR(ENOMEM);
 
 	error = xfs_iget(mp, NULL, ino,
-			 XFS_IGET_BULKSTAT, XFS_ILOCK_SHARED, &ip, bno);
+			 XFS_IGET_UNTRUSTED, XFS_ILOCK_SHARED, &ip, bno);
 	if (error) {
 		*stat = BULKSTAT_RV_NOTHING;
 		goto out_free;
-- 
cgit v1.2.3-55-g7522


From 7b6259e7a83647948fa33a736cc832310c8d85aa Mon Sep 17 00:00:00 2001
From: Dave Chinner
Date: Thu, 24 Jun 2010 11:35:17 +1000
Subject: xfs: remove block number from inode lookup code

The block number comes from bulkstat based inode lookups to shortcut
the mapping calculations. We ar enot able to trust anything from
bulkstat, so drop the block number as well so that the correct
lookups and mappings are always done.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/linux-2.6/xfs_export.c  |  2 +-
 fs/xfs/linux-2.6/xfs_ioctl32.c |  5 ++---
 fs/xfs/quota/xfs_qm.c          |  7 +++----
 fs/xfs/quota/xfs_qm_syscalls.c | 11 +++++------
 fs/xfs/xfs_ialloc.c            | 16 ----------------
 fs/xfs/xfs_iget.c              | 10 +++-------
 fs/xfs/xfs_inode.c             |  3 ---
 fs/xfs/xfs_inode.h             |  4 ++--
 fs/xfs/xfs_itable.c            | 12 ++++--------
 fs/xfs/xfs_itable.h            |  3 ---
 fs/xfs/xfs_log_recover.c       |  2 +-
 fs/xfs/xfs_mount.c             |  2 +-
 fs/xfs/xfs_rtalloc.c           |  4 ++--
 fs/xfs/xfs_trans_inode.c       |  2 +-
 fs/xfs/xfs_vnodeops.c          |  2 +-
 15 files changed, 26 insertions(+), 59 deletions(-)

diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c
index 92c84a19cc9e..e7839ee49e43 100644
--- a/fs/xfs/linux-2.6/xfs_export.c
+++ b/fs/xfs/linux-2.6/xfs_export.c
@@ -133,7 +133,7 @@ xfs_nfs_get_inode(
 	 * send invalid file handles and we have to handle it gracefully..
 	 */
 	error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED,
-			 XFS_ILOCK_SHARED, &ip, 0);
+			 XFS_ILOCK_SHARED, &ip);
 	if (error) {
 		/*
 		 * EINVAL means the inode cluster doesn't exist anymore.
diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c
index e1d8380b049d..52ed49e6465c 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl32.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl32.c
@@ -237,12 +237,11 @@ xfs_bulkstat_one_compat(
 	xfs_ino_t	ino,		/* inode number to get data for */
 	void		__user *buffer,	/* buffer to place output in */
 	int		ubsize,		/* size of buffer */
-	xfs_daddr_t	bno,		/* starting bno of inode cluster */
 	int		*ubused,	/* bytes used by me */
 	int		*stat)		/* BULKSTAT_RV_... */
 {
 	return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
-				    xfs_bulkstat_one_fmt_compat, bno,
+				    xfs_bulkstat_one_fmt_compat,
 				    ubused, stat);
 }
 
@@ -296,7 +295,7 @@ xfs_compat_ioc_bulkstat(
 		int res;
 
 		error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer,
-				sizeof(compat_xfs_bstat_t), 0, NULL, &res);
+				sizeof(compat_xfs_bstat_t), 0, &res);
 	} else if (cmd == XFS_IOC_FSBULKSTAT_32) {
 		error = xfs_bulkstat(mp, &inlast, &count,
 			xfs_bulkstat_one_compat, sizeof(compat_xfs_bstat_t),
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index f19f94c4cb9f..8c117ff2e3ab 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -1632,7 +1632,6 @@ xfs_qm_dqusage_adjust(
 	xfs_ino_t	ino,		/* inode number to get data for */
 	void		__user *buffer,	/* not used */
 	int		ubsize,		/* not used */
-	xfs_daddr_t	bno,		/* starting block of inode cluster */
 	int		*ubused,	/* not used */
 	int		*res)		/* result code value */
 {
@@ -1658,7 +1657,7 @@ xfs_qm_dqusage_adjust(
 	 * the case in all other instances. It's OK that we do this because
 	 * quotacheck is done only at mount time.
 	 */
-	if ((error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip, bno))) {
+	if ((error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_EXCL, &ip))) {
 		*res = BULKSTAT_RV_NOTHING;
 		return error;
 	}
@@ -1888,14 +1887,14 @@ xfs_qm_init_quotainos(
 		    mp->m_sb.sb_uquotino != NULLFSINO) {
 			ASSERT(mp->m_sb.sb_uquotino > 0);
 			if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino,
-					     0, 0, &uip, 0)))
+					     0, 0, &uip)))
 				return XFS_ERROR(error);
 		}
 		if (XFS_IS_OQUOTA_ON(mp) &&
 		    mp->m_sb.sb_gquotino != NULLFSINO) {
 			ASSERT(mp->m_sb.sb_gquotino > 0);
 			if ((error = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
-					     0, 0, &gip, 0))) {
+					     0, 0, &gip))) {
 				if (uip)
 					IRELE(uip);
 				return XFS_ERROR(error);
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 99a2d8e0f173..b4487764e923 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -262,7 +262,7 @@ xfs_qm_scall_trunc_qfiles(
 	}
 
 	if ((flags & XFS_DQ_USER) && mp->m_sb.sb_uquotino != NULLFSINO) {
-		error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip, 0);
+		error = xfs_iget(mp, NULL, mp->m_sb.sb_uquotino, 0, 0, &qip);
 		if (!error) {
 			error = xfs_truncate_file(mp, qip);
 			IRELE(qip);
@@ -271,7 +271,7 @@ xfs_qm_scall_trunc_qfiles(
 
 	if ((flags & (XFS_DQ_GROUP|XFS_DQ_PROJ)) &&
 	    mp->m_sb.sb_gquotino != NULLFSINO) {
-		error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip, 0);
+		error2 = xfs_iget(mp, NULL, mp->m_sb.sb_gquotino, 0, 0, &qip);
 		if (!error2) {
 			error2 = xfs_truncate_file(mp, qip);
 			IRELE(qip);
@@ -417,12 +417,12 @@ xfs_qm_scall_getqstat(
 	}
 	if (!uip && mp->m_sb.sb_uquotino != NULLFSINO) {
 		if (xfs_iget(mp, NULL, mp->m_sb.sb_uquotino,
-					0, 0, &uip, 0) == 0)
+					0, 0, &uip) == 0)
 			tempuqip = B_TRUE;
 	}
 	if (!gip && mp->m_sb.sb_gquotino != NULLFSINO) {
 		if (xfs_iget(mp, NULL, mp->m_sb.sb_gquotino,
-					0, 0, &gip, 0) == 0)
+					0, 0, &gip) == 0)
 			tempgqip = B_TRUE;
 	}
 	if (uip) {
@@ -1109,7 +1109,6 @@ xfs_qm_internalqcheck_adjust(
 	xfs_ino_t	ino,		/* inode number to get data for */
 	void		__user *buffer,	/* not used */
 	int		ubsize,		/* not used */
-	xfs_daddr_t	bno,		/* starting block of inode cluster */
 	int		*ubused,	/* not used */
 	int		*res)		/* bulkstat result code */
 {
@@ -1132,7 +1131,7 @@ xfs_qm_internalqcheck_adjust(
 	ipreleased = B_FALSE;
  again:
 	lock_flags = XFS_ILOCK_SHARED;
-	if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip, bno))) {
+	if ((error = xfs_iget(mp, NULL, ino, 0, lock_flags, &ip))) {
 		*res = BULKSTAT_RV_NOTHING;
 		return (error);
 	}
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index d8fd36685eb9..c7142a064c48 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -1354,22 +1354,6 @@ xfs_imap(
 		return 0;
 	}
 
-	/*
-	 * If we get a block number passed we can use it to
-	 * find the buffer easily.
-	 */
-	if (imap->im_blkno) {
-		offset = XFS_INO_TO_OFFSET(mp, ino);
-		ASSERT(offset < mp->m_sb.sb_inopblock);
-
-		cluster_agbno = xfs_daddr_to_agbno(mp, imap->im_blkno);
-		offset += (agbno - cluster_agbno) * mp->m_sb.sb_inopblock;
-
-		imap->im_len = XFS_FSB_TO_BB(mp, blks_per_cluster);
-		imap->im_boffset = (ushort)(offset << mp->m_sb.sb_inodelog);
-		return 0;
-	}
-
 	/*
 	 * If the inode chunks are aligned then use simple maths to
 	 * find the location. Otherwise we have to do a btree
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 75df75f43d48..8f8b91be2c99 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -259,7 +259,6 @@ xfs_iget_cache_miss(
 	xfs_trans_t		*tp,
 	xfs_ino_t		ino,
 	struct xfs_inode	**ipp,
-	xfs_daddr_t		bno,
 	int			flags,
 	int			lock_flags)
 {
@@ -272,7 +271,7 @@ xfs_iget_cache_miss(
 	if (!ip)
 		return ENOMEM;
 
-	error = xfs_iread(mp, tp, ip, bno, flags);
+	error = xfs_iread(mp, tp, ip, flags);
 	if (error)
 		goto out_destroy;
 
@@ -358,8 +357,6 @@ out_destroy:
  *        within the file system for the inode being requested.
  * lock_flags -- flags indicating how to lock the inode.  See the comment
  *		 for xfs_ilock() for a list of valid values.
- * bno -- the block number starting the buffer containing the inode,
- *	  if known (as by bulkstat), else 0.
  */
 int
 xfs_iget(
@@ -368,8 +365,7 @@ xfs_iget(
 	xfs_ino_t	ino,
 	uint		flags,
 	uint		lock_flags,
-	xfs_inode_t	**ipp,
-	xfs_daddr_t	bno)
+	xfs_inode_t	**ipp)
 {
 	xfs_inode_t	*ip;
 	int		error;
@@ -397,7 +393,7 @@ again:
 		read_unlock(&pag->pag_ici_lock);
 		XFS_STATS_INC(xs_ig_missed);
 
-		error = xfs_iget_cache_miss(mp, pag, tp, ino, &ip, bno,
+		error = xfs_iget_cache_miss(mp, pag, tp, ino, &ip,
 							flags, lock_flags);
 		if (error)
 			goto out_error_or_again;
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 12c277a5e98a..b76a829d7e20 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -787,7 +787,6 @@ xfs_iread(
 	xfs_mount_t	*mp,
 	xfs_trans_t	*tp,
 	xfs_inode_t	*ip,
-	xfs_daddr_t	bno,
 	uint		iget_flags)
 {
 	xfs_buf_t	*bp;
@@ -797,11 +796,9 @@ xfs_iread(
 	/*
 	 * Fill in the location information in the in-core inode.
 	 */
-	ip->i_imap.im_blkno = bno;
 	error = xfs_imap(mp, tp, ip->i_ino, &ip->i_imap, iget_flags);
 	if (error)
 		return error;
-	ASSERT(bno == 0 || bno == ip->i_imap.im_blkno);
 
 	/*
 	 * Get pointers to the on-disk inode and the buffer containing it.
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 6b31b38244ab..78550df13cd6 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -442,7 +442,7 @@ static inline void xfs_ifunlock(xfs_inode_t *ip)
  * xfs_iget.c prototypes.
  */
 int		xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
-			 uint, uint, xfs_inode_t **, xfs_daddr_t);
+			 uint, uint, xfs_inode_t **);
 void		xfs_iput(xfs_inode_t *, uint);
 void		xfs_iput_new(xfs_inode_t *, uint);
 void		xfs_ilock(xfs_inode_t *, uint);
@@ -509,7 +509,7 @@ int		xfs_itobp(struct xfs_mount *, struct xfs_trans *,
 			  struct xfs_inode *, struct xfs_dinode **,
 			  struct xfs_buf **, uint);
 int		xfs_iread(struct xfs_mount *, struct xfs_trans *,
-			  struct xfs_inode *, xfs_daddr_t, uint);
+			  struct xfs_inode *, uint);
 void		xfs_dinode_to_disk(struct xfs_dinode *,
 				   struct xfs_icdinode *);
 void		xfs_idestroy_fork(struct xfs_inode *, int);
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 2acd12fd3f25..2b86f8610512 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -60,7 +60,6 @@ xfs_bulkstat_one_int(
 	void __user		*buffer,	/* buffer to place output in */
 	int			ubsize,		/* size of buffer */
 	bulkstat_one_fmt_pf	formatter,	/* formatter, copy to user */
-	xfs_daddr_t		bno,		/* starting bno of cluster */
 	int			*ubused,	/* bytes used by me */
 	int			*stat)		/* BULKSTAT_RV_... */
 {
@@ -80,7 +79,7 @@ xfs_bulkstat_one_int(
 		return XFS_ERROR(ENOMEM);
 
 	error = xfs_iget(mp, NULL, ino,
-			 XFS_IGET_UNTRUSTED, XFS_ILOCK_SHARED, &ip, bno);
+			 XFS_IGET_UNTRUSTED, XFS_ILOCK_SHARED, &ip);
 	if (error) {
 		*stat = BULKSTAT_RV_NOTHING;
 		goto out_free;
@@ -179,13 +178,11 @@ xfs_bulkstat_one(
 	xfs_ino_t	ino,		/* inode number to get data for */
 	void		__user *buffer,	/* buffer to place output in */
 	int		ubsize,		/* size of buffer */
-	xfs_daddr_t	bno,		/* starting bno of inode cluster */
 	int		*ubused,	/* bytes used by me */
 	int		*stat)		/* BULKSTAT_RV_... */
 {
 	return xfs_bulkstat_one_int(mp, ino, buffer, ubsize,
-				    xfs_bulkstat_one_fmt, bno,
-				    ubused, stat);
+				    xfs_bulkstat_one_fmt, ubused, stat);
 }
 
 #define XFS_BULKSTAT_UBLEFT(ubleft)	((ubleft) >= statstruct_size)
@@ -485,7 +482,7 @@ xfs_bulkstat(
 				 * Get the inode and fill in a single buffer.
 				 */
 				ubused = statstruct_size;
-				error = formatter(mp, ino, ubufp, ubleft, bno,
+				error = formatter(mp, ino, ubufp, ubleft,
 						  &ubused, &fmterror);
 				if (fmterror == BULKSTAT_RV_NOTHING) {
 					if (error && error != ENOENT &&
@@ -578,8 +575,7 @@ xfs_bulkstat_single(
 	 */
 
 	ino = (xfs_ino_t)*lastinop;
-	error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t),
-				 0, NULL, &res);
+	error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t), 0, &res);
 	if (error) {
 		/*
 		 * Special case way failed, do it the "long" way
diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h
index fea03397a3ab..97295d91d170 100644
--- a/fs/xfs/xfs_itable.h
+++ b/fs/xfs/xfs_itable.h
@@ -27,7 +27,6 @@ typedef int (*bulkstat_one_pf)(struct xfs_mount	*mp,
 			       xfs_ino_t	ino,
 			       void		__user *buffer,
 			       int		ubsize,
-			       xfs_daddr_t	bno,
 			       int		*ubused,
 			       int		*stat);
 
@@ -71,7 +70,6 @@ xfs_bulkstat_one_int(
 	void			__user *buffer,
 	int			ubsize,
 	bulkstat_one_fmt_pf	formatter,
-	xfs_daddr_t		bno,
 	int			*ubused,
 	int			*stat);
 
@@ -81,7 +79,6 @@ xfs_bulkstat_one(
 	xfs_ino_t		ino,
 	void			__user *buffer,
 	int			ubsize,
-	xfs_daddr_t		bno,
 	int			*ubused,
 	int			*stat);
 
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index ed0684cc50ee..9ac5cfab27b9 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -3198,7 +3198,7 @@ xlog_recover_process_one_iunlink(
 	int				error;
 
 	ino = XFS_AGINO_TO_INO(mp, agno, agino);
-	error = xfs_iget(mp, NULL, ino, 0, 0, &ip, 0);
+	error = xfs_iget(mp, NULL, ino, 0, 0, &ip);
 	if (error)
 		goto fail;
 
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index d59f4e8bedcf..69f62d8b2816 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1300,7 +1300,7 @@ xfs_mountfs(
 	 * Get and sanity-check the root inode.
 	 * Save the pointer to it in the mount structure.
 	 */
-	error = xfs_iget(mp, NULL, sbp->sb_rootino, 0, XFS_ILOCK_EXCL, &rip, 0);
+	error = xfs_iget(mp, NULL, sbp->sb_rootino, 0, XFS_ILOCK_EXCL, &rip);
 	if (error) {
 		cmn_err(CE_WARN, "XFS: failed to read root inode");
 		goto out_log_dealloc;
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index 16445518506d..a2d32ce335aa 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -2277,12 +2277,12 @@ xfs_rtmount_inodes(
 	sbp = &mp->m_sb;
 	if (sbp->sb_rbmino == NULLFSINO)
 		return 0;
-	error = xfs_iget(mp, NULL, sbp->sb_rbmino, 0, 0, &mp->m_rbmip, 0);
+	error = xfs_iget(mp, NULL, sbp->sb_rbmino, 0, 0, &mp->m_rbmip);
 	if (error)
 		return error;
 	ASSERT(mp->m_rbmip != NULL);
 	ASSERT(sbp->sb_rsumino != NULLFSINO);
-	error = xfs_iget(mp, NULL, sbp->sb_rsumino, 0, 0, &mp->m_rsumip, 0);
+	error = xfs_iget(mp, NULL, sbp->sb_rsumino, 0, 0, &mp->m_rsumip);
 	if (error) {
 		IRELE(mp->m_rbmip);
 		return error;
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index 785ff101da0a..2559dfec946b 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -62,7 +62,7 @@ xfs_trans_iget(
 {
 	int			error;
 
-	error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp, 0);
+	error = xfs_iget(mp, tp, ino, flags, lock_flags, ipp);
 	if (!error && tp)
 		xfs_trans_ijoin(tp, *ipp, lock_flags);
 	return error;
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index a06bd62504fc..c1646838898f 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -1269,7 +1269,7 @@ xfs_lookup(
 	if (error)
 		goto out;
 
-	error = xfs_iget(dp->i_mount, NULL, inum, 0, 0, ipp, 0);
+	error = xfs_iget(dp->i_mount, NULL, inum, 0, 0, ipp);
 	if (error)
 		goto out_free_name;
 
-- 
cgit v1.2.3-55-g7522


From f3b99be19ded511a1bf05a148276239d9f13eefa Mon Sep 17 00:00:00 2001
From: NeilBrown
Date: Thu, 24 Jun 2010 13:31:03 +1000
Subject: Restore partition detection of newly created md arrays.

Commit  b821eaa572fd737faaf6928ba046e571526c36c6 broke partition
detection for md arrays.

The logic was almost right.  However if revalidate_disk is called
when the device is not yet open, bdev->bd_disk won't be set, so the
flush_disk() Call will not set bd_invalidated.

So when md_open is called we still need to ensure that
->bd_invalidated gets set.  This is easily done with a call to
check_disk_size_change in the place where the offending commit removed
check_disk_change.  At the important times, the size will have changed
from 0 to non-zero, so check_disk_size_change will set bd_invalidated.

Tested-by: Duncan <1i5t5.duncan@cox.net>
Reported-by: Duncan <1i5t5.duncan@cox.net>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/md.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 46b3a044eadf..4edcda8f4869 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5895,6 +5895,7 @@ static int md_open(struct block_device *bdev, fmode_t mode)
 	atomic_inc(&mddev->openers);
 	mutex_unlock(&mddev->open_mutex);
 
+	check_disk_size_change(mddev->gendisk, bdev);
  out:
 	return err;
 }
-- 
cgit v1.2.3-55-g7522


From 0544a21db02c1d8883158fd6f323364f830a120a Mon Sep 17 00:00:00 2001
From: Prasanna S. Panchamukhi
Date: Thu, 24 Jun 2010 13:31:03 +1000
Subject: md: raid10: Fix null pointer dereference in fix_read_error()

Such NULL pointer dereference can occur when the driver was fixing the
read errors/bad blocks and the disk was physically removed
causing a system crash. This patch check if the
rcu_dereference() returns valid rdev before accessing it in fix_read_error().

Cc: stable@kernel.org
Signed-off-by: Prasanna S. Panchamukhi <prasanna.panchamukhi@riverbed.com>
Signed-off-by: Rob Becker <rbecker@riverbed.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid10.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 03724992cdf2..6d420cb487b5 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1482,14 +1482,14 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio)
 	int sectors = r10_bio->sectors;
 	mdk_rdev_t*rdev;
 	int max_read_errors = atomic_read(&mddev->max_corr_read_errors);
+	int d = r10_bio->devs[r10_bio->read_slot].devnum;
 
 	rcu_read_lock();
-	{
-		int d = r10_bio->devs[r10_bio->read_slot].devnum;
+	rdev = rcu_dereference(conf->mirrors[d].rdev);
+	if (rdev) { /* If rdev is not NULL */
 		char b[BDEVNAME_SIZE];
 		int cur_read_error_count = 0;
 
-		rdev = rcu_dereference(conf->mirrors[d].rdev);
 		bdevname(rdev->bdev, b);
 
 		if (test_bit(Faulty, &rdev->flags)) {
@@ -1530,7 +1530,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio)
 
 		rcu_read_lock();
 		do {
-			int d = r10_bio->devs[sl].devnum;
+			d = r10_bio->devs[sl].devnum;
 			rdev = rcu_dereference(conf->mirrors[d].rdev);
 			if (rdev &&
 			    test_bit(In_sync, &rdev->flags)) {
@@ -1564,7 +1564,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio)
 		rcu_read_lock();
 		while (sl != r10_bio->read_slot) {
 			char b[BDEVNAME_SIZE];
-			int d;
+
 			if (sl==0)
 				sl = conf->copies;
 			sl--;
@@ -1601,7 +1601,7 @@ static void fix_read_error(conf_t *conf, mddev_t *mddev, r10bio_t *r10_bio)
 		}
 		sl = start;
 		while (sl != r10_bio->read_slot) {
-			int d;
+
 			if (sl==0)
 				sl = conf->copies;
 			sl--;
-- 
cgit v1.2.3-55-g7522


From e93f68a1fc6244c05ad8fae28e75835ec74ab34e Mon Sep 17 00:00:00 2001
From: NeilBrown
Date: Tue, 15 Jun 2010 09:36:03 +0100
Subject: md: fix handling of array level takeover that re-arranges devices.

Most array level changes leave the list of devices largely unchanged,
possibly causing one at the end to become redundant.
However conversions between RAID0 and RAID10 need to renumber
all devices (except 0).

This renumbering is currently being done in the ->run method when the
new personality takes over.  However this is too late as the common
code in md.c might already have invalidated some of the devices if
they had a ->raid_disk number that appeared to high.

Moving it into the ->takeover method is too early as the array is
still active at that time and wrong ->raid_disk numbers could cause
confusion.

So add a ->new_raid_disk field to mdk_rdev_s and use it to communicate
the new raid_disk number.
Now the common code knows exactly which devices need to be renumbered,
and which can be invalidated, and can do it all at a convenient time
when the array is suspend.
It can also update some symlinks in sysfs which previously were not be
updated correctly.

Reported-by: Maciej Trela <maciej.trela@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/md.c     | 35 ++++++++++++++++++++++++++++++-----
 drivers/md/md.h     |  3 +++
 drivers/md/raid0.c  | 11 +++--------
 drivers/md/raid0.h  |  3 ---
 drivers/md/raid10.c | 19 +++++--------------
 drivers/md/raid10.h |  5 -----
 6 files changed, 41 insertions(+), 35 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 4edcda8f4869..4869128bf742 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3001,6 +3001,9 @@ level_store(mddev_t *mddev, const char *buf, size_t len)
 		return -EINVAL;
 	}
 
+	list_for_each_entry(rdev, &mddev->disks, same_set)
+		rdev->new_raid_disk = rdev->raid_disk;
+
 	/* ->takeover must set new_* and/or delta_disks
 	 * if it succeeds, and may set them when it fails.
 	 */
@@ -3051,13 +3054,35 @@ level_store(mddev_t *mddev, const char *buf, size_t len)
 		mddev->safemode = 0;
 	}
 
-	module_put(mddev->pers->owner);
-	/* Invalidate devices that are now superfluous */
-	list_for_each_entry(rdev, &mddev->disks, same_set)
-		if (rdev->raid_disk >= mddev->raid_disks) {
-			rdev->raid_disk = -1;
+	list_for_each_entry(rdev, &mddev->disks, same_set) {
+		char nm[20];
+		if (rdev->raid_disk < 0)
+			continue;
+		if (rdev->new_raid_disk > mddev->raid_disks)
+			rdev->new_raid_disk = -1;
+		if (rdev->new_raid_disk == rdev->raid_disk)
+			continue;
+		sprintf(nm, "rd%d", rdev->raid_disk);
+		sysfs_remove_link(&mddev->kobj, nm);
+	}
+	list_for_each_entry(rdev, &mddev->disks, same_set) {
+		if (rdev->raid_disk < 0)
+			continue;
+		if (rdev->new_raid_disk == rdev->raid_disk)
+			continue;
+		rdev->raid_disk = rdev->new_raid_disk;
+		if (rdev->raid_disk < 0)
 			clear_bit(In_sync, &rdev->flags);
+		else {
+			char nm[20];
+			sprintf(nm, "rd%d", rdev->raid_disk);
+			if(sysfs_create_link(&mddev->kobj, &rdev->kobj, nm))
+				printk("md: cannot register %s for %s after level change\n",
+				       nm, mdname(mddev));
 		}
+	}
+
+	module_put(mddev->pers->owner);
 	mddev->pers = pers;
 	mddev->private = priv;
 	strlcpy(mddev->clevel, pers->name, sizeof(mddev->clevel));
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 7ab5ea155452..10597bfec000 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -78,6 +78,9 @@ struct mdk_rdev_s
 
 	int desc_nr;			/* descriptor index in the superblock */
 	int raid_disk;			/* role of device in array */
+	int new_raid_disk;		/* role that the device will have in
+					 * the array after a level-change completes.
+					 */
 	int saved_raid_disk;		/* role that device used to have in the
 					 * array and could again if we did a partial
 					 * resync from the bitmap
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index e70f004c99e8..7c7c38058bc2 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -173,9 +173,11 @@ static int create_strip_zones(mddev_t *mddev, raid0_conf_t **private_conf)
 	list_for_each_entry(rdev1, &mddev->disks, same_set) {
 		int j = rdev1->raid_disk;
 
-		if (mddev->level == 10)
+		if (mddev->level == 10) {
 			/* taking over a raid10-n2 array */
 			j /= 2;
+			rdev1->new_raid_disk = j;
+		}
 
 		if (j < 0 || j >= mddev->raid_disks) {
 			printk(KERN_ERR "md/raid0:%s: bad disk number %d - "
@@ -361,12 +363,6 @@ static int raid0_run(mddev_t *mddev)
 		mddev->private = conf;
 	}
 	conf = mddev->private;
-	if (conf->scale_raid_disks) {
-		int i;
-		for (i=0; i < conf->strip_zone[0].nb_dev; i++)
-			conf->devlist[i]->raid_disk /= conf->scale_raid_disks;
-		/* FIXME update sysfs rd links */
-	}
 
 	/* calculate array device size */
 	md_set_array_sectors(mddev, raid0_size(mddev, 0, 0));
@@ -643,7 +639,6 @@ static void *raid0_takeover_raid10(mddev_t *mddev)
 	mddev->recovery_cp = MaxSector;
 
 	create_strip_zones(mddev, &priv_conf);
-	priv_conf->scale_raid_disks = 2;
 	return priv_conf;
 }
 
diff --git a/drivers/md/raid0.h b/drivers/md/raid0.h
index d724e664ca4d..91f8e876ee64 100644
--- a/drivers/md/raid0.h
+++ b/drivers/md/raid0.h
@@ -13,9 +13,6 @@ struct raid0_private_data
 	struct strip_zone *strip_zone;
 	mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */
 	int nr_strip_zones;
-	int scale_raid_disks; /* divide rdev->raid_disks by this in run()
-			       * to handle conversion from raid10
-			       */
 };
 
 typedef struct raid0_private_data raid0_conf_t;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 6d420cb487b5..1bab3559f3e2 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2241,7 +2241,6 @@ static conf_t *setup_conf(mddev_t *mddev)
 	if (!conf->thread)
 		goto out;
 
-	conf->scale_disks = 0;
 	conf->mddev = mddev;
 	return conf;
 
@@ -2300,11 +2299,6 @@ static int run(mddev_t *mddev)
 		if (disk_idx >= conf->raid_disks
 		    || disk_idx < 0)
 			continue;
-		if (conf->scale_disks) {
-			disk_idx *= conf->scale_disks;
-			rdev->raid_disk = disk_idx;
-			/* MOVE 'rd%d' link !! */
-		}
 		disk = conf->mirrors + disk_idx;
 
 		disk->rdev = rdev;
@@ -2435,13 +2429,6 @@ static void *raid10_takeover_raid0(mddev_t *mddev)
 		return ERR_PTR(-EINVAL);
 	}
 
-	/* Update slot numbers to obtain
-	 * degraded raid10 with missing mirrors
-	 */
-	list_for_each_entry(rdev, &mddev->disks, same_set) {
-		rdev->raid_disk *= 2;
-	}
-
 	/* Set new parameters */
 	mddev->new_level = 10;
 	/* new layout: far_copies = 1, near_copies = 2 */
@@ -2454,7 +2441,11 @@ static void *raid10_takeover_raid0(mddev_t *mddev)
 	mddev->recovery_cp = MaxSector;
 
 	conf = setup_conf(mddev);
-	conf->scale_disks = 2;
+	if (!IS_ERR(conf))
+		list_for_each_entry(rdev, &mddev->disks, same_set)
+			if (rdev->raid_disk >= 0)
+				rdev->new_raid_disk = rdev->raid_disk * 2;
+		
 	return conf;
 }
 
diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h
index 3824a087e17c..2316ac2e8e21 100644
--- a/drivers/md/raid10.h
+++ b/drivers/md/raid10.h
@@ -38,11 +38,6 @@ struct r10_private_data_s {
 	int chunk_shift; /* shift from chunks to sectors */
 	sector_t chunk_mask;
 
-	int			scale_disks;  /* When starting array, multiply
-					       * each ->raid_disk by this.
-					       * Need for raid0->raid10 migration
-					       */
-
 	struct list_head	retry_list;
 	/* queue pending writes and submit them on unplug */
 	struct bio_list		pending_bio_list;
-- 
cgit v1.2.3-55-g7522


From f73ea87375a1b2bf6c0be82bb9a3cb9d5ee7a407 Mon Sep 17 00:00:00 2001
From: Maciej Trela
Date: Wed, 16 Jun 2010 11:46:29 +0100
Subject: md: fix raid10 takeover: use new_layout for setup_conf

Use mddev->new_layout in setup_conf.
Also use new_chunk, and don't set ->degraded in takeover().  That
gets set in run()

Signed-off-by: Maciej Trela <maciej.trela@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid10.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 1bab3559f3e2..42e64e4e5e25 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -2161,22 +2161,22 @@ static conf_t *setup_conf(mddev_t *mddev)
 	sector_t stride, size;
 	int err = -EINVAL;
 
-	if (mddev->chunk_sectors < (PAGE_SIZE >> 9) ||
-	    !is_power_of_2(mddev->chunk_sectors)) {
+	if (mddev->new_chunk_sectors < (PAGE_SIZE >> 9) ||
+	    !is_power_of_2(mddev->new_chunk_sectors)) {
 		printk(KERN_ERR "md/raid10:%s: chunk size must be "
 		       "at least PAGE_SIZE(%ld) and be a power of 2.\n",
 		       mdname(mddev), PAGE_SIZE);
 		goto out;
 	}
 
-	nc = mddev->layout & 255;
-	fc = (mddev->layout >> 8) & 255;
-	fo = mddev->layout & (1<<16);
+	nc = mddev->new_layout & 255;
+	fc = (mddev->new_layout >> 8) & 255;
+	fo = mddev->new_layout & (1<<16);
 
 	if ((nc*fc) <2 || (nc*fc) > mddev->raid_disks ||
-	    (mddev->layout >> 17)) {
+	    (mddev->new_layout >> 17)) {
 		printk(KERN_ERR "md/raid10:%s: unsupported raid10 layout: 0x%8x\n",
-		       mdname(mddev), mddev->layout);
+		       mdname(mddev), mddev->new_layout);
 		goto out;
 	}
 
@@ -2435,7 +2435,6 @@ static void *raid10_takeover_raid0(mddev_t *mddev)
 	mddev->new_layout = (1<<8) + 2;
 	mddev->new_chunk_sectors = mddev->chunk_sectors;
 	mddev->delta_disks = mddev->raid_disks;
-	mddev->degraded = mddev->raid_disks;
 	mddev->raid_disks *= 2;
 	/* make sure it will be not marked as dirty */
 	mddev->recovery_cp = MaxSector;
-- 
cgit v1.2.3-55-g7522


From 001048a318d48e93cb6a1246f3b20335b2a7c855 Mon Sep 17 00:00:00 2001
From: Maciej Trela
Date: Wed, 16 Jun 2010 11:55:14 +0100
Subject: md: clear layout after ->raid0 takeover

After takeover from raid5/10 -> raid0 mddev->layout is not cleared.

Signed-off-by: Maciej Trela <maciej.trela@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid0.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 7c7c38058bc2..ac09b7d38553 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -592,6 +592,7 @@ static void *raid0_takeover_raid5(mddev_t *mddev)
 
 	/* Set new parameters */
 	mddev->new_level = 0;
+	mddev->new_layout = 0;
 	mddev->new_chunk_sectors = mddev->chunk_sectors;
 	mddev->raid_disks--;
 	mddev->delta_disks = -1;
@@ -631,6 +632,7 @@ static void *raid0_takeover_raid10(mddev_t *mddev)
 
 	/* Set new parameters */
 	mddev->new_level = 0;
+	mddev->new_layout = 0;
 	mddev->new_chunk_sectors = mddev->chunk_sectors;
 	mddev->delta_disks = - mddev->raid_disks / 2;
 	mddev->raid_disks += mddev->delta_disks;
-- 
cgit v1.2.3-55-g7522


From 049d6c1ef983c9ac43aa423dfd752071a5b0002d Mon Sep 17 00:00:00 2001
From: Maciej Trela
Date: Wed, 16 Jun 2010 11:56:12 +0100
Subject: md: enable raid4->raid0 takeover

Only level 5 with layout=PARITY_N can be taken over to raid0 now.
Lets allow level 4 either.

Signed-off-by: Maciej Trela <maciej.trela@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid0.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index ac09b7d38553..563abed5a2cb 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -569,7 +569,7 @@ static void raid0_status(struct seq_file *seq, mddev_t *mddev)
 	return;
 }
 
-static void *raid0_takeover_raid5(mddev_t *mddev)
+static void *raid0_takeover_raid45(mddev_t *mddev)
 {
 	mdk_rdev_t *rdev;
 	raid0_conf_t *priv_conf;
@@ -647,12 +647,16 @@ static void *raid0_takeover_raid10(mddev_t *mddev)
 static void *raid0_takeover(mddev_t *mddev)
 {
 	/* raid0 can take over:
+	 *  raid4 - if all data disks are active.
 	 *  raid5 - providing it is Raid4 layout and one disk is faulty
 	 *  raid10 - assuming we have all necessary active disks
 	 */
+	if (mddev->level == 4)
+		return raid0_takeover_raid45(mddev);
+
 	if (mddev->level == 5) {
 		if (mddev->layout == ALGORITHM_PARITY_N)
-			return raid0_takeover_raid5(mddev);
+			return raid0_takeover_raid45(mddev);
 
 		printk(KERN_ERR "md/raid0:%s: Raid can only takeover Raid5 with layout: %d\n",
 		       mdname(mddev), ALGORITHM_PARITY_N);
-- 
cgit v1.2.3-55-g7522


From e4e11e385d1e5516ac76c956d6c25e6c2fa1b8d0 Mon Sep 17 00:00:00 2001
From: NeilBrown
Date: Wed, 16 Jun 2010 16:45:16 +1000
Subject: md/raid5: avoid oops when number of devices is reduced then
 increased.

The entries in the stripe_cache maintained by raid5 are enlarged
when we increased the number of devices in the array, but not
shrunk when we reduce the number of devices.
So if entries are added after reducing the number of devices, we
much ensure to initialise the whole entry, not just the part that
is currently relevant.  Otherwise if we enlarge the array again,
we will reference uninitialised values.

As grow_buffers/shrink_buffer now want to use a count that is stored
explicity in the raid_conf, they should get it from there rather than
being passed it as a parameter.

Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index d2c0f94fa37d..2c055dec8c68 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -277,12 +277,13 @@ out:
 	return sh;
 }
 
-static void shrink_buffers(struct stripe_head *sh, int num)
+static void shrink_buffers(struct stripe_head *sh)
 {
 	struct page *p;
 	int i;
+	int num = sh->raid_conf->pool_size;
 
-	for (i=0; i<num ; i++) {
+	for (i = 0; i < num ; i++) {
 		p = sh->dev[i].page;
 		if (!p)
 			continue;
@@ -291,11 +292,12 @@ static void shrink_buffers(struct stripe_head *sh, int num)
 	}
 }
 
-static int grow_buffers(struct stripe_head *sh, int num)
+static int grow_buffers(struct stripe_head *sh)
 {
 	int i;
+	int num = sh->raid_conf->pool_size;
 
-	for (i=0; i<num; i++) {
+	for (i = 0; i < num; i++) {
 		struct page *page;
 
 		if (!(page = alloc_page(GFP_KERNEL))) {
@@ -1240,19 +1242,18 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request)
 static int grow_one_stripe(raid5_conf_t *conf)
 {
 	struct stripe_head *sh;
-	int disks = max(conf->raid_disks, conf->previous_raid_disks);
 	sh = kmem_cache_alloc(conf->slab_cache, GFP_KERNEL);
 	if (!sh)
 		return 0;
-	memset(sh, 0, sizeof(*sh) + (disks-1)*sizeof(struct r5dev));
+	memset(sh, 0, sizeof(*sh) + (conf->pool_size-1)*sizeof(struct r5dev));
 	sh->raid_conf = conf;
 	spin_lock_init(&sh->lock);
 	#ifdef CONFIG_MULTICORE_RAID456
 	init_waitqueue_head(&sh->ops.wait_for_ops);
 	#endif
 
-	if (grow_buffers(sh, disks)) {
-		shrink_buffers(sh, disks);
+	if (grow_buffers(sh)) {
+		shrink_buffers(sh);
 		kmem_cache_free(conf->slab_cache, sh);
 		return 0;
 	}
@@ -1468,7 +1469,7 @@ static int drop_one_stripe(raid5_conf_t *conf)
 	if (!sh)
 		return 0;
 	BUG_ON(atomic_read(&sh->count));
-	shrink_buffers(sh, conf->pool_size);
+	shrink_buffers(sh);
 	kmem_cache_free(conf->slab_cache, sh);
 	atomic_dec(&conf->active_stripes);
 	return 1;
-- 
cgit v1.2.3-55-g7522


From 70fffd0bfab1558a8c64c5e903dea1fb84cd9f6b Mon Sep 17 00:00:00 2001
From: NeilBrown
Date: Wed, 16 Jun 2010 17:01:25 +1000
Subject: md: Don't update ->recovery_offset when reshaping an array to fewer
 devices.

When an array is reshaped to have fewer devices, the reshape proceeds
from the end of the devices to the beginning.

If a device happens to be non-In_sync (which is possible but rare)
we would normally update the ->recovery_offset as the reshape
progresses. However that would be wrong as the recover_offset records
that the early part of the device is in_sync, while in fact it would
only be the later part that is in_sync, and in any case the offset
number would be measured from the wrong end of the device.

Relatedly, if after a reshape a spare is discovered to not be
recoverred all the way to the end, not allow spare_active
to incorporate it in the array.

This becomes relevant in the following sample scenario:

A 4 drive RAID5 is converted to a 6 drive RAID6 in a combined
operation.
The RAID5->RAID6 conversion will cause a 5 drive to be included as a
spare, then the 5drive -> 6drive reshape will effectively rebuild that
spare as it progresses.  The 6th drive is treated as in_sync the whole
time as there is never any case that we might consider reading from
it, but must not because there is no valid data.

If we interrupt this reshape part-way through and reverse it to return
to a 5-drive RAID6 (or event a 4-drive RAID5), we don't want to update
the recovery_offset - as that would be wrong - and we don't want to
include that spare as active in the 5-drive RAID6 when the reversed
reshape completed and it will be mostly out-of-sync still.

Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/md.c    | 2 ++
 drivers/md/raid5.c | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 4869128bf742..cb20d0b0555a 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2087,6 +2087,7 @@ static void sync_sbs(mddev_t * mddev, int nospares)
 	/* First make sure individual recovery_offsets are correct */
 	list_for_each_entry(rdev, &mddev->disks, same_set) {
 		if (rdev->raid_disk >= 0 &&
+		    mddev->delta_disks >= 0 &&
 		    !test_bit(In_sync, &rdev->flags) &&
 		    mddev->curr_resync_completed > rdev->recovery_offset)
 				rdev->recovery_offset = mddev->curr_resync_completed;
@@ -6872,6 +6873,7 @@ void md_do_sync(mddev_t *mddev)
 			rcu_read_lock();
 			list_for_each_entry_rcu(rdev, &mddev->disks, same_set)
 				if (rdev->raid_disk >= 0 &&
+				    mddev->delta_disks >= 0 &&
 				    !test_bit(Faulty, &rdev->flags) &&
 				    !test_bit(In_sync, &rdev->flags) &&
 				    rdev->recovery_offset < mddev->curr_resync)
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 2c055dec8c68..f972a94bbc32 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5208,6 +5208,7 @@ static int raid5_spare_active(mddev_t *mddev)
 	for (i = 0; i < conf->raid_disks; i++) {
 		tmp = conf->disks + i;
 		if (tmp->rdev
+		    && tmp->rdev->recovery_offset == MaxSector
 		    && !test_bit(Faulty, &tmp->rdev->flags)
 		    && !test_and_set_bit(In_sync, &tmp->rdev->flags)) {
 			unsigned long flags;
-- 
cgit v1.2.3-55-g7522


From 674806d62fb02a22eea948c9f1b5e58e0947b728 Mon Sep 17 00:00:00 2001
From: NeilBrown
Date: Wed, 16 Jun 2010 17:17:53 +1000
Subject: md/raid5: More careful check for "has array failed".

When we are reshaping an array, the device failure combinations
that cause us to decide that the array as failed are more subtle.

In particular, any 'spare' will be fully in-sync in the section
of the array that has already been reshaped, thus failures that
affect only that section are less critical.

So encode this subtlety in a new function and call it as appropriate.

The case that showed this problem was a 4 drive RAID5 to 8 drive RAID6
conversion where the last two devices failed.
This resulted in:

  good good good good incomplete good good failed failed

while converting a 5-drive RAID6 to 8 drive RAID5
The incomplete device causes the whole array to look bad,
bad as it was actually good for the section that had been
converted to 8-drives, all the data was actually safe.

Reported-by: Terry Morris <tbmorris@tbmorris.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 71 insertions(+), 4 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index f972a94bbc32..d4b233c25f2e 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -366,6 +366,73 @@ static struct stripe_head *__find_stripe(raid5_conf_t *conf, sector_t sector,
 	return NULL;
 }
 
+/*
+ * Need to check if array has failed when deciding whether to:
+ *  - start an array
+ *  - remove non-faulty devices
+ *  - add a spare
+ *  - allow a reshape
+ * This determination is simple when no reshape is happening.
+ * However if there is a reshape, we need to carefully check
+ * both the before and after sections.
+ * This is because some failed devices may only affect one
+ * of the two sections, and some non-in_sync devices may
+ * be insync in the section most affected by failed devices.
+ */
+static int has_failed(raid5_conf_t *conf)
+{
+	int degraded;
+	int i;
+	if (conf->mddev->reshape_position == MaxSector)
+		return conf->mddev->degraded > conf->max_degraded;
+
+	rcu_read_lock();
+	degraded = 0;
+	for (i = 0; i < conf->previous_raid_disks; i++) {
+		mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev);
+		if (!rdev || test_bit(Faulty, &rdev->flags))
+			degraded++;
+		else if (test_bit(In_sync, &rdev->flags))
+			;
+		else
+			/* not in-sync or faulty.
+			 * If the reshape increases the number of devices,
+			 * this is being recovered by the reshape, so
+			 * this 'previous' section is not in_sync.
+			 * If the number of devices is being reduced however,
+			 * the device can only be part of the array if
+			 * we are reverting a reshape, so this section will
+			 * be in-sync.
+			 */
+			if (conf->raid_disks >= conf->previous_raid_disks)
+				degraded++;
+	}
+	rcu_read_unlock();
+	if (degraded > conf->max_degraded)
+		return 1;
+	rcu_read_lock();
+	degraded = 0;
+	for (i = 0; i < conf->raid_disks; i++) {
+		mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev);
+		if (!rdev || test_bit(Faulty, &rdev->flags))
+			degraded++;
+		else if (test_bit(In_sync, &rdev->flags))
+			;
+		else
+			/* not in-sync or faulty.
+			 * If reshape increases the number of devices, this
+			 * section has already been recovered, else it
+			 * almost certainly hasn't.
+			 */
+			if (conf->raid_disks <= conf->previous_raid_disks)
+				degraded++;
+	}
+	rcu_read_unlock();
+	if (degraded > conf->max_degraded)
+		return 1;
+	return 0;
+}
+
 static void unplug_slaves(mddev_t *mddev);
 static void raid5_unplug_device(struct request_queue *q);
 
@@ -5006,7 +5073,7 @@ static int run(mddev_t *mddev)
 	mddev->degraded = (max(conf->raid_disks, conf->previous_raid_disks)
 			   - working_disks);
 
-	if (mddev->degraded > conf->max_degraded) {
+	if (has_failed(conf)) {
 		printk(KERN_ERR "md/raid:%s: not enough operational devices"
 			" (%d/%d failed)\n",
 			mdname(mddev), mddev->degraded, conf->raid_disks);
@@ -5244,7 +5311,7 @@ static int raid5_remove_disk(mddev_t *mddev, int number)
 		 * isn't possible.
 		 */
 		if (!test_bit(Faulty, &rdev->flags) &&
-		    mddev->degraded <= conf->max_degraded &&
+		    !has_failed(conf) &&
 		    number < conf->raid_disks) {
 			err = -EBUSY;
 			goto abort;
@@ -5272,7 +5339,7 @@ static int raid5_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
 	int first = 0;
 	int last = conf->raid_disks - 1;
 
-	if (mddev->degraded > conf->max_degraded)
+	if (has_failed(conf))
 		/* no point adding a device */
 		return -EINVAL;
 
@@ -5364,7 +5431,7 @@ static int check_reshape(mddev_t *mddev)
 	if (mddev->bitmap)
 		/* Cannot grow a bitmap yet */
 		return -EBUSY;
-	if (mddev->degraded > conf->max_degraded)
+	if (has_failed(conf))
 		return -EINVAL;
 	if (mddev->delta_disks < 0) {
 		/* We might be able to shrink, but the devices must
-- 
cgit v1.2.3-55-g7522


From 415e72d034c50520ddb7ff79e7d1792c1306f0c9 Mon Sep 17 00:00:00 2001
From: NeilBrown
Date: Thu, 17 Jun 2010 17:25:21 +1000
Subject: md/raid5: Allow recovered part of partially recovered devices to be
 in-sync

During a recovery of reshape the early part of some devices might be
in-sync while the later parts are not.
We we know we are looking at an early part it is good to treat that
part as in-sync for stripe calculations.

This is particularly important for a reshape which suffers device
failure.  Treating the data as in-sync can mean the difference between
data-safety and data-loss.

Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 42 ++++++++++++++++++++++++++++++------------
 1 file changed, 30 insertions(+), 12 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index d4b233c25f2e..09f07dadf404 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -3031,7 +3031,6 @@ static void handle_stripe5(struct stripe_head *sh)
 		mdk_rdev_t *rdev;
 
 		dev = &sh->dev[i];
-		clear_bit(R5_Insync, &dev->flags);
 
 		pr_debug("check %d: state 0x%lx toread %p read %p write %p "
 			"written %p\n",	i, dev->flags, dev->toread, dev->read,
@@ -3068,17 +3067,27 @@ static void handle_stripe5(struct stripe_head *sh)
 			blocked_rdev = rdev;
 			atomic_inc(&rdev->nr_pending);
 		}
-		if (!rdev || !test_bit(In_sync, &rdev->flags)) {
+		clear_bit(R5_Insync, &dev->flags);
+		if (!rdev)
+			/* Not in-sync */;
+		else if (test_bit(In_sync, &rdev->flags))
+			set_bit(R5_Insync, &dev->flags);
+		else {
+			/* could be in-sync depending on recovery/reshape status */
+			if (sh->sector + STRIPE_SECTORS <= rdev->recovery_offset)
+				set_bit(R5_Insync, &dev->flags);
+		}
+		if (!test_bit(R5_Insync, &dev->flags)) {
 			/* The ReadError flag will just be confusing now */
 			clear_bit(R5_ReadError, &dev->flags);
 			clear_bit(R5_ReWrite, &dev->flags);
 		}
-		if (!rdev || !test_bit(In_sync, &rdev->flags)
-		    || test_bit(R5_ReadError, &dev->flags)) {
+		if (test_bit(R5_ReadError, &dev->flags))
+			clear_bit(R5_Insync, &dev->flags);
+		if (!test_bit(R5_Insync, &dev->flags)) {
 			s.failed++;
 			s.failed_num = i;
-		} else
-			set_bit(R5_Insync, &dev->flags);
+		}
 	}
 	rcu_read_unlock();
 
@@ -3312,7 +3321,6 @@ static void handle_stripe6(struct stripe_head *sh)
 	for (i=disks; i--; ) {
 		mdk_rdev_t *rdev;
 		dev = &sh->dev[i];
-		clear_bit(R5_Insync, &dev->flags);
 
 		pr_debug("check %d: state 0x%lx read %p write %p written %p\n",
 			i, dev->flags, dev->toread, dev->towrite, dev->written);
@@ -3350,18 +3358,28 @@ static void handle_stripe6(struct stripe_head *sh)
 			blocked_rdev = rdev;
 			atomic_inc(&rdev->nr_pending);
 		}
-		if (!rdev || !test_bit(In_sync, &rdev->flags)) {
+		clear_bit(R5_Insync, &dev->flags);
+		if (!rdev)
+			/* Not in-sync */;
+		else if (test_bit(In_sync, &rdev->flags))
+			set_bit(R5_Insync, &dev->flags);
+		else {
+			/* in sync if before recovery_offset */
+			if (sh->sector + STRIPE_SECTORS <= rdev->recovery_offset)
+				set_bit(R5_Insync, &dev->flags);
+		}
+		if (!test_bit(R5_Insync, &dev->flags)) {
 			/* The ReadError flag will just be confusing now */
 			clear_bit(R5_ReadError, &dev->flags);
 			clear_bit(R5_ReWrite, &dev->flags);
 		}
-		if (!rdev || !test_bit(In_sync, &rdev->flags)
-		    || test_bit(R5_ReadError, &dev->flags)) {
+		if (test_bit(R5_ReadError, &dev->flags))
+			clear_bit(R5_Insync, &dev->flags);
+		if (!test_bit(R5_Insync, &dev->flags)) {
 			if (s.failed < 2)
 				r6s.failed_num[s.failed] = i;
 			s.failed++;
-		} else
-			set_bit(R5_Insync, &dev->flags);
+		}
 	}
 	rcu_read_unlock();
 
-- 
cgit v1.2.3-55-g7522


From 2f115882499f3e5eca33d1df07b8876cc752a1ff Mon Sep 17 00:00:00 2001
From: NeilBrown
Date: Thu, 17 Jun 2010 17:41:03 +1000
Subject: md/raid5: add a missing 'continue' in a loop.

As the comment says, the tail of this loop only applies to devices
that are not fully in sync, so if In_sync was set, we should avoid
the rest of the loop.

This bug will hardly ever cause an actual problem.  The worst it
can do is allow an array to be assembled that is dirty and degraded,
which is not generally a good idea (without warning the sysadmin
first).

This will only happen if the array is RAID4 or a RAID5/6 in an
intermediate state during a reshape and so has one drive that is
all 'parity' - no data - while some other device has failed.

This is certainly possible, but not at all common.

Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 09f07dadf404..66cd47973398 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5057,8 +5057,10 @@ static int run(mddev_t *mddev)
 	list_for_each_entry(rdev, &mddev->disks, same_set) {
 		if (rdev->raid_disk < 0)
 			continue;
-		if (test_bit(In_sync, &rdev->flags))
+		if (test_bit(In_sync, &rdev->flags)) {
 			working_disks++;
+			continue;
+		}
 		/* This disc is not fully in-sync.  However if it
 		 * just stored parity (beyond the recovery_offset),
 		 * when we don't need to be concerned about the
-- 
cgit v1.2.3-55-g7522


From 3424bf6a772cff606fc4bc24a3639c937afb547f Mon Sep 17 00:00:00 2001
From: NeilBrown
Date: Thu, 17 Jun 2010 17:48:26 +1000
Subject: md/raid5: don't include 'spare' drives when reshaping to fewer
 devices.

There are few situations where it would make any sense to add a spare
when reducing the number of devices in an array, but it is
conceivable:  A 6 drive RAID6 with two missing devices could be
reshaped to a 5 drive RAID6, and a spare could become available
just in time for the reshape, but not early enough to have been
recovered first.  'freezing' recovery can make this easy to
do without any races.

However doing such a thing is a bad idea.  md will not record the
partially-recovered state of the 'spare' and when the reshape
finished it will think that the spare is still spare.
Easiest way to avoid this confusion is to simply disallow it.

Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 66cd47973398..96c690279fc6 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5526,8 +5526,13 @@ static int raid5_start_reshape(mddev_t *mddev)
 
 	/* Add some new drives, as many as will fit.
 	 * We know there are enough to make the newly sized array work.
+	 * Don't add devices if we are reducing the number of
+	 * devices in the array.  This is because it is not possible
+	 * to correctly record the "partially reconstructed" state of
+	 * such devices during the reshape and confusion could result.
 	 */
-	list_for_each_entry(rdev, &mddev->disks, same_set)
+	if (mddev->delta_disks >= 0)
+	    list_for_each_entry(rdev, &mddev->disks, same_set)
 		if (rdev->raid_disk < 0 &&
 		    !test_bit(Faulty, &rdev->flags)) {
 			if (raid5_add_disk(mddev, rdev) == 0) {
@@ -5549,7 +5554,7 @@ static int raid5_start_reshape(mddev_t *mddev)
 		}
 
 	/* When a reshape changes the number of devices, ->degraded
-	 * is measured against the large of the pre and post number of
+	 * is measured against the larger of the pre and post number of
 	 * devices.*/
 	if (mddev->delta_disks > 0) {
 		spin_lock_irqsave(&conf->device_lock, flags);
-- 
cgit v1.2.3-55-g7522


From 1b99973f1c82707e46e8cb9416865a1e955e8f8c Mon Sep 17 00:00:00 2001
From: Tao Ma
Date: Thu, 24 Jun 2010 07:43:57 +0800
Subject: block: Don't count_vm_events for discard bio in submit_bio.

In submit_bio, we count vm events by check READ/WRITE.
But actually DISCARD_NOBARRIER also has the WRITE flag set.
It looks as if in blkdev_issue_discard, we also add a
page as the payload and the bio_has_data check isn't enough.
So add another check for discard bio.

Signed-off-by: Tao Ma <tao.ma@oracle.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
---
 block/blk-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 3deca77e0254..f0640d7f800f 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1583,7 +1583,7 @@ void submit_bio(int rw, struct bio *bio)
 	 * If it's a regular read/write or a barrier with data attached,
 	 * go through the normal accounting stuff before submission.
 	 */
-	if (bio_has_data(bio)) {
+	if (bio_has_data(bio) && !(rw & (1 << BIO_RW_DISCARD))) {
 		if (rw & WRITE) {
 			count_vm_events(PGPGOUT, count);
 		} else {
-- 
cgit v1.2.3-55-g7522


From b1312c89f0016f778cac4f1536f1434e132f8713 Mon Sep 17 00:00:00 2001
From: Timo Teräs
Date: Thu, 24 Jun 2010 14:35:00 -0700
Subject: xfrm: check bundle policy existance before dereferencing it

Fix the bundle validation code to not assume having a valid policy.
When we have multiple transformations for a xfrm policy, the bundle
instance will be a chain of bundles with only the first one having
the policy reference. When policy_genid is bumped it will expire the
first bundle in the chain which is equivalent of expiring the whole
chain.

Reported-bisected-and-tested-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Timo Teräs <timo.teras@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/xfrm/xfrm_policy.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 4bf27d901333..af1c173be4ad 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -2300,7 +2300,8 @@ int xfrm_bundle_ok(struct xfrm_policy *pol, struct xfrm_dst *first,
 			return 0;
 		if (xdst->xfrm_genid != dst->xfrm->genid)
 			return 0;
-		if (xdst->policy_genid != atomic_read(&xdst->pols[0]->genid))
+		if (xdst->num_pols > 0 &&
+		    xdst->policy_genid != atomic_read(&xdst->pols[0]->genid))
 			return 0;
 
 		if (strict && fl &&
-- 
cgit v1.2.3-55-g7522


From 523825bc586d19e0fbcfc5db717f5bb90108bbc3 Mon Sep 17 00:00:00 2001
From: Jan Kara
Date: Wed, 2 Jun 2010 16:26:51 +0200
Subject: ext2: update ctime when changing the file's permission by setfacl

ext2 didn't update the ctime of the file when its permission was changed.

Steps to reproduce:
 # touch aaa
 # stat -c %Z aaa
 1275289822
 # setfacl -m  'u::x,g::x,o::x' aaa
 # stat -c %Z aaa
 1275289822                         <- unchanged

But, according to the spec of the ctime, ext2 must update it.

Port of ext3 patch by Miao Xie <miaox@cn.fujitsu.com>.

Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/ext2/acl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index ca7e2a0ed98a..2bcc0431bada 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -200,6 +200,7 @@ ext2_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 					return error;
 				else {
 					inode->i_mode = mode;
+					inode->i_ctime = CURRENT_TIME_SEC;
 					mark_inode_dirty(inode);
 					if (error == 0)
 						acl = NULL;
-- 
cgit v1.2.3-55-g7522


From 30e2bab2d6e22188c6d36a09cdcffb4748d2dbe5 Mon Sep 17 00:00:00 2001
From: Miao Xie
Date: Thu, 27 May 2010 16:28:40 +0800
Subject: ext3: update ctime when changing the file's permission by setfacl

ext3 didn't update the ctime of the file when its permission was changed.

Steps to reproduce:
 # touch aaa
 # stat -c %Z aaa
 1275289822
 # setfacl -m  'u::x,g::x,o::x' aaa
 # stat -c %Z aaa
 1275289822				<- unchanged

But, according to the spec of the ctime, ext3 must update it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/ext3/acl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ext3/acl.c b/fs/ext3/acl.c
index 01552abbca3c..8a11fe212183 100644
--- a/fs/ext3/acl.c
+++ b/fs/ext3/acl.c
@@ -205,6 +205,7 @@ ext3_set_acl(handle_t *handle, struct inode *inode, int type,
 					return error;
 				else {
 					inode->i_mode = mode;
+					inode->i_ctime = CURRENT_TIME_SEC;
 					ext3_mark_inode_dirty(handle, inode);
 					if (error == 0)
 						acl = NULL;
-- 
cgit v1.2.3-55-g7522


From 3267a87f9dc38d036571ff0880533d9ae8989f01 Mon Sep 17 00:00:00 2001
From: Henrik Rydberg
Date: Thu, 24 Jun 2010 19:10:40 -0700
Subject: MAINTAINERS - Add an entry for the input MT protocol

This patch adds a maintainer for the input multitouch (MT) protocol,
such that get_maintainer.pl selects it whenever an MT event is present
in the patch.

Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---
 MAINTAINERS | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 6d119c98b89b..603413bc51bf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2887,6 +2887,13 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git
 S:	Maintained
 F:	drivers/input/
 
+INPUT MULTITOUCH (MT) PROTOCOL
+M:	Henrik Rydberg <rydberg@euromail.se>
+L:	linux-input@vger.kernel.org
+S:	Maintained
+F:	Documentation/input/multi-touch-protocol.txt
+K:	\b(ABS|SYN)_MT_
+
 INTEL IDLE DRIVER
 M:	Len Brown <lenb@kernel.org>
 L:	linux-pm@lists.linux-foundation.org
-- 
cgit v1.2.3-55-g7522


From 1a61a83ff59378a5613d8c706c4a660c353b62a8 Mon Sep 17 00:00:00 2001
From: Gustavo F. Padovan
Date: Fri, 18 Jun 2010 14:24:00 +0000
Subject: Bluetooth: Bring back var 'i' increment

commit ff6e2163f28a1094fb5ca5950fe2b43c3cf6bc7a accidentally added a
regression on the bnep code. Fixing it.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bluetooth/bnep/netdev.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/bluetooth/bnep/netdev.c b/net/bluetooth/bnep/netdev.c
index 0faad5ce6dc4..8c100c9dae28 100644
--- a/net/bluetooth/bnep/netdev.c
+++ b/net/bluetooth/bnep/netdev.c
@@ -104,6 +104,8 @@ static void bnep_net_set_mc_list(struct net_device *dev)
 				break;
 			memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
 			memcpy(__skb_put(skb, ETH_ALEN), ha->addr, ETH_ALEN);
+
+			i++;
 		}
 		r->len = htons(skb->len - len);
 	}
-- 
cgit v1.2.3-55-g7522


From 0d98bb2656e9bd2dfda2d089db1fe1dbdab41504 Mon Sep 17 00:00:00 2001
From: Will Deacon
Date: Mon, 24 May 2010 12:11:43 -0700
Subject: sched: Prevent compiler from optimising the sched_avg_update() loop

GCC 4.4.1 on ARM has been observed to replace the while loop in
sched_avg_update with a call to uldivmod, resulting in the
following build failure at link-time:

kernel/built-in.o: In function `sched_avg_update':
 kernel/sched.c:1261: undefined reference to `__aeabi_uldivmod'
 kernel/sched.c:1261: undefined reference to `__aeabi_uldivmod'
make: *** [.tmp_vmlinux1] Error 1

This patch introduces a fake data hazard to the loop body to
prevent the compiler optimising the loop away.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <stable@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 kernel/sched.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/sched.c b/kernel/sched.c
index 6c9e7c8735bf..a24d6d5d83f6 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1254,6 +1254,12 @@ static void sched_avg_update(struct rq *rq)
 	s64 period = sched_avg_period();
 
 	while ((s64)(rq->clock - rq->age_stamp) > period) {
+		/*
+		 * Inline assembly required to prevent the compiler
+		 * optimising this loop into a divmod call.
+		 * See __iter_div_u64_rem() for another example of this.
+		 */
+		asm("" : "+rm" (rq->age_stamp));
 		rq->age_stamp += period;
 		rq->rt_avg /= 2;
 	}
-- 
cgit v1.2.3-55-g7522


From 499a00e92dd9a75395081f595e681629eb1eebad Mon Sep 17 00:00:00 2001
From: Darrick J. Wong
Date: Thu, 24 Jun 2010 14:26:47 -0700
Subject: x86, Calgary: Increase max PHB number

Newer systems (x3950M2) can have 48 PHBs per chassis and 8
chassis, so bump the limits up and provide an explanation
of the requirements for each class.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Acked-by: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Corinna Schultz <cschultz@linux.vnet.ibm.com>
Cc: <stable@kernel.org>
LKML-Reference: <20100624212647.GI15515@tux1.beaverton.ibm.com>
[ v2: Fixed build bug, added back PHBS_PER_CALGARY == 4 ]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/pci-calgary_64.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index fb99f7edb341..0b96b5589f08 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -103,11 +103,16 @@ int use_calgary __read_mostly = 0;
 #define PMR_SOFTSTOPFAULT	0x40000000
 #define PMR_HARDSTOP		0x20000000
 
-#define MAX_NUM_OF_PHBS		8 /* how many PHBs in total? */
-#define MAX_NUM_CHASSIS		8 /* max number of chassis */
-/* MAX_PHB_BUS_NUM is the maximal possible dev->bus->number */
-#define MAX_PHB_BUS_NUM		(MAX_NUM_OF_PHBS * MAX_NUM_CHASSIS * 2)
-#define PHBS_PER_CALGARY	4
+/*
+ * The maximum PHB bus number.
+ * x3950M2 (rare): 8 chassis, 48 PHBs per chassis = 384
+ * x3950M2: 4 chassis, 48 PHBs per chassis        = 192
+ * x3950 (PCIE): 8 chassis, 32 PHBs per chassis   = 256
+ * x3950 (PCIX): 8 chassis, 16 PHBs per chassis   = 128
+ */
+#define MAX_PHB_BUS_NUM		384
+
+#define PHBS_PER_CALGARY	  4
 
 /* register offsets in Calgary's internal register space */
 static const unsigned long tar_offsets[] = {
-- 
cgit v1.2.3-55-g7522


From 9f888160bdcccf0565dd2774956b8d9456e610be Mon Sep 17 00:00:00 2001
From: stephen hemminger
Date: Mon, 21 Jun 2010 11:00:13 +0000
Subject: ipv6: fix NULL reference in proxy neighbor discovery

The addition of TLLAO option created a kernel OOPS regression
for the case where neighbor advertisement is being sent via
proxy path.  When using proxy, ipv6_get_ifaddr() returns NULL
causing the NULL dereference.

Change causing the bug was:
commit f7734fdf61ec6bb848e0bafc1fb8bad2c124bb50
Author: Octavian Purdila <opurdila@ixiacom.com>
Date:   Fri Oct 2 11:39:15 2009 +0000

    make TLLAO option for NA packets configurable

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Acked-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ndisc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 0abdc242ddb7..2efef52fb461 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -586,6 +586,7 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
 		src_addr = solicited_addr;
 		if (ifp->flags & IFA_F_OPTIMISTIC)
 			override = 0;
+		inc_opt |= ifp->idev->cnf.force_tllao;
 		in6_ifa_put(ifp);
 	} else {
 		if (ipv6_dev_get_saddr(dev_net(dev), dev, daddr,
@@ -599,7 +600,6 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
 	icmp6h.icmp6_solicited = solicited;
 	icmp6h.icmp6_override = override;
 
-	inc_opt |= ifp->idev->cnf.force_tllao;
 	__ndisc_send(dev, neigh, daddr, src_addr,
 		     &icmp6h, solicited_addr,
 		     inc_opt ? ND_OPT_TARGET_LL_ADDR : 0);
-- 
cgit v1.2.3-55-g7522


From 9735b7ef005aaef5e5905cddba893f8725cd8867 Mon Sep 17 00:00:00 2001
From: Ken Kawasaki
Date: Sat, 19 Jun 2010 15:24:27 +0000
Subject: smc91c92_cs: fix the problem that lan & modem does not work
 simultaneously

smc91c92_cs:
  Fix the problem that lan & modem does not work simultaneously
  in the Megahertz multi-function card.
  We need to write MEGAHERTZ_ISR to retrigger interrupt.

Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/pcmcia/smc91c92_cs.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c
index 64e6a84bbbbe..307cd1721e91 100644
--- a/drivers/net/pcmcia/smc91c92_cs.c
+++ b/drivers/net/pcmcia/smc91c92_cs.c
@@ -1505,12 +1505,20 @@ irq_done:
 	writeb(cor & ~COR_IREQ_ENA, smc->base + MOT_LAN + CISREG_COR);
 	writeb(cor, smc->base + MOT_LAN + CISREG_COR);
     }
-#ifdef DOES_NOT_WORK
-    if (smc->base != NULL) { /* Megahertz MFC's */
-	readb(smc->base+MEGAHERTZ_ISR);
-	readb(smc->base+MEGAHERTZ_ISR);
+
+    if ((smc->base != NULL) &&  /* Megahertz MFC's */
+	(smc->manfid == MANFID_MEGAHERTZ) &&
+	(smc->cardid == PRODID_MEGAHERTZ_EM3288)) {
+
+	u_char tmp;
+	tmp = readb(smc->base+MEGAHERTZ_ISR);
+	tmp = readb(smc->base+MEGAHERTZ_ISR);
+
+	/* Retrigger interrupt if needed */
+	writeb(tmp, smc->base + MEGAHERTZ_ISR);
+	writeb(tmp, smc->base + MEGAHERTZ_ISR);
     }
-#endif
+
     spin_unlock(&smc->lock);
     return IRQ_RETVAL(handled);
 }
-- 
cgit v1.2.3-55-g7522


From ed770f01360b392564650bf1553ce723fa46afec Mon Sep 17 00:00:00 2001
From: Florian Fainelli
Date: Sun, 20 Jun 2010 22:07:48 +0000
Subject: cpmac: do not leak struct net_device on phy_connect errors

If the call to phy_connect fails, we will return directly instead of freeing
the previously allocated struct net_device.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
CC: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/cpmac.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/cpmac.c b/drivers/net/cpmac.c
index 3c58db595285..23786ee34bed 100644
--- a/drivers/net/cpmac.c
+++ b/drivers/net/cpmac.c
@@ -1181,7 +1181,8 @@ static int __devinit cpmac_probe(struct platform_device *pdev)
 		if (netif_msg_drv(priv))
 			printk(KERN_ERR "%s: Could not attach to PHY\n",
 			       dev->name);
-		return PTR_ERR(priv->phy);
+		rc = PTR_ERR(priv->phy);
+		goto fail;
 	}
 
 	if ((rc = register_netdev(dev))) {
-- 
cgit v1.2.3-55-g7522


From e7752ee280608a24e27f163641121bdc2c68d6af Mon Sep 17 00:00:00 2001
From: Tilman Schmidt
Date: Mon, 21 Jun 2010 13:54:19 +0000
Subject: isdn/gigaset: honor CAPI application's buffer size request

Fix the Gigaset CAPI driver to limit the length of a connection's
payload data receive buffers to the corresponding CAPI application's
data buffer size, as some real-life CAPI applications tend to be
rather unhappy if they receive bigger data blocks than requested.

Impact: bugfix
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/isdn/gigaset/asyncdata.c | 44 ++++++------------------
 drivers/isdn/gigaset/capi.c      |  8 +++++
 drivers/isdn/gigaset/common.c    | 32 +++++-------------
 drivers/isdn/gigaset/gigaset.h   | 29 +++++++++++-----
 drivers/isdn/gigaset/i4l.c       | 21 ++++++++++++
 drivers/isdn/gigaset/isocdata.c  | 72 ++++++++++++++--------------------------
 6 files changed, 94 insertions(+), 112 deletions(-)

diff --git a/drivers/isdn/gigaset/asyncdata.c b/drivers/isdn/gigaset/asyncdata.c
index c5016bd2d94f..c3b1dc3a13a0 100644
--- a/drivers/isdn/gigaset/asyncdata.c
+++ b/drivers/isdn/gigaset/asyncdata.c
@@ -126,26 +126,6 @@ static unsigned lock_loop(unsigned numbytes, struct inbuf_t *inbuf)
 	return numbytes;
 }
 
-/* set up next receive skb for data mode
- */
-static void new_rcv_skb(struct bc_state *bcs)
-{
-	struct cardstate *cs = bcs->cs;
-	unsigned short hw_hdr_len = cs->hw_hdr_len;
-
-	if (bcs->ignore) {
-		bcs->skb = NULL;
-		return;
-	}
-
-	bcs->skb = dev_alloc_skb(SBUFSIZE + hw_hdr_len);
-	if (bcs->skb == NULL) {
-		dev_warn(cs->dev, "could not allocate new skb\n");
-		return;
-	}
-	skb_reserve(bcs->skb, hw_hdr_len);
-}
-
 /* process a block of received bytes in HDLC data mode
  * (mstate != MS_LOCKED && !(inputstate & INS_command) && proto2 == L2_HDLC)
  * Collect HDLC frames, undoing byte stuffing and watching for DLE escapes.
@@ -159,8 +139,8 @@ static unsigned hdlc_loop(unsigned numbytes, struct inbuf_t *inbuf)
 	struct cardstate *cs = inbuf->cs;
 	struct bc_state *bcs = cs->bcs;
 	int inputstate = bcs->inputstate;
-	__u16 fcs = bcs->fcs;
-	struct sk_buff *skb = bcs->skb;
+	__u16 fcs = bcs->rx_fcs;
+	struct sk_buff *skb = bcs->rx_skb;
 	unsigned char *src = inbuf->data + inbuf->head;
 	unsigned procbytes = 0;
 	unsigned char c;
@@ -245,8 +225,7 @@ byte_stuff:
 
 				/* prepare reception of next frame */
 				inputstate &= ~INS_have_data;
-				new_rcv_skb(bcs);
-				skb = bcs->skb;
+				skb = gigaset_new_rx_skb(bcs);
 			} else {
 				/* empty frame (7E 7E) */
 #ifdef CONFIG_GIGASET_DEBUG
@@ -255,8 +234,7 @@ byte_stuff:
 				if (!skb) {
 					/* skipped (?) */
 					gigaset_isdn_rcv_err(bcs);
-					new_rcv_skb(bcs);
-					skb = bcs->skb;
+					skb = gigaset_new_rx_skb(bcs);
 				}
 			}
 
@@ -279,11 +257,11 @@ byte_stuff:
 #endif
 		inputstate |= INS_have_data;
 		if (skb) {
-			if (skb->len == SBUFSIZE) {
+			if (skb->len >= bcs->rx_bufsize) {
 				dev_warn(cs->dev, "received packet too long\n");
 				dev_kfree_skb_any(skb);
 				/* skip remainder of packet */
-				bcs->skb = skb = NULL;
+				bcs->rx_skb = skb = NULL;
 			} else {
 				*__skb_put(skb, 1) = c;
 				fcs = crc_ccitt_byte(fcs, c);
@@ -292,7 +270,7 @@ byte_stuff:
 	}
 
 	bcs->inputstate = inputstate;
-	bcs->fcs = fcs;
+	bcs->rx_fcs = fcs;
 	return procbytes;
 }
 
@@ -308,18 +286,18 @@ static unsigned iraw_loop(unsigned numbytes, struct inbuf_t *inbuf)
 	struct cardstate *cs = inbuf->cs;
 	struct bc_state *bcs = cs->bcs;
 	int inputstate = bcs->inputstate;
-	struct sk_buff *skb = bcs->skb;
+	struct sk_buff *skb = bcs->rx_skb;
 	unsigned char *src = inbuf->data + inbuf->head;
 	unsigned procbytes = 0;
 	unsigned char c;
 
 	if (!skb) {
 		/* skip this block */
-		new_rcv_skb(bcs);
+		gigaset_new_rx_skb(bcs);
 		return numbytes;
 	}
 
-	while (procbytes < numbytes && skb->len < SBUFSIZE) {
+	while (procbytes < numbytes && skb->len < bcs->rx_bufsize) {
 		c = *src++;
 		procbytes++;
 
@@ -343,7 +321,7 @@ static unsigned iraw_loop(unsigned numbytes, struct inbuf_t *inbuf)
 	if (inputstate & INS_have_data) {
 		gigaset_skb_rcvd(bcs, skb);
 		inputstate &= ~INS_have_data;
-		new_rcv_skb(bcs);
+		gigaset_new_rx_skb(bcs);
 	}
 
 	bcs->inputstate = inputstate;
diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 8f78f15c8ef7..245a6083f79d 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -80,6 +80,7 @@ struct gigaset_capi_appl {
 	struct list_head ctrlist;
 	struct gigaset_capi_appl *bcnext;
 	u16 id;
+	struct capi_register_params rp;
 	u16 nextMessageNumber;
 	u32 listenInfoMask;
 	u32 listenCIPmask;
@@ -945,6 +946,7 @@ static void gigaset_register_appl(struct capi_ctr *ctr, u16 appl,
 		return;
 	}
 	ap->id = appl;
+	ap->rp = *rp;
 
 	list_add(&ap->ctrlist, &iif->appls);
 }
@@ -1166,6 +1168,9 @@ static void do_connect_req(struct gigaset_capi_ctr *iif,
 	}
 	ap->bcnext = NULL;
 	bcs->ap = ap;
+	bcs->rx_bufsize = ap->rp.datablklen;
+	dev_kfree_skb(bcs->rx_skb);
+	gigaset_new_rx_skb(bcs);
 	cmsg->adr.adrPLCI |= (bcs->channel + 1) << 8;
 
 	/* build command table */
@@ -1435,6 +1440,9 @@ static void do_connect_resp(struct gigaset_capi_ctr *iif,
 					CapiCallGivenToOtherApplication);
 		ap->bcnext = NULL;
 		bcs->ap = ap;
+		bcs->rx_bufsize = ap->rp.datablklen;
+		dev_kfree_skb(bcs->rx_skb);
+		gigaset_new_rx_skb(bcs);
 		bcs->chstate |= CHS_NOTIFY_LL;
 
 		/* check/encode B channel protocol */
diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c
index f6f45f221920..9778fabbc488 100644
--- a/drivers/isdn/gigaset/common.c
+++ b/drivers/isdn/gigaset/common.c
@@ -399,8 +399,8 @@ static void gigaset_freebcs(struct bc_state *bcs)
 	gig_dbg(DEBUG_INIT, "clearing bcs[%d]->at_state", bcs->channel);
 	clear_at_state(&bcs->at_state);
 	gig_dbg(DEBUG_INIT, "freeing bcs[%d]->skb", bcs->channel);
-	dev_kfree_skb(bcs->skb);
-	bcs->skb = NULL;
+	dev_kfree_skb(bcs->rx_skb);
+	bcs->rx_skb = NULL;
 
 	for (i = 0; i < AT_NUM; ++i) {
 		kfree(bcs->commands[i]);
@@ -634,19 +634,10 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
 	bcs->emptycount = 0;
 #endif
 
-	gig_dbg(DEBUG_INIT, "allocating bcs[%d]->skb", channel);
-	bcs->fcs = PPP_INITFCS;
+	bcs->rx_bufsize = 0;
+	bcs->rx_skb = NULL;
+	bcs->rx_fcs = PPP_INITFCS;
 	bcs->inputstate = 0;
-	if (cs->ignoreframes) {
-		bcs->skb = NULL;
-	} else {
-		bcs->skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len);
-		if (bcs->skb != NULL)
-			skb_reserve(bcs->skb, cs->hw_hdr_len);
-		else
-			pr_err("out of memory\n");
-	}
-
 	bcs->channel = channel;
 	bcs->cs = cs;
 
@@ -663,11 +654,6 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
 		return bcs;
 
 	gig_dbg(DEBUG_INIT, "  failed");
-
-	gig_dbg(DEBUG_INIT, "  freeing bcs[%d]->skb", channel);
-	dev_kfree_skb(bcs->skb);
-	bcs->skb = NULL;
-
 	return NULL;
 }
 
@@ -839,14 +825,12 @@ void gigaset_bcs_reinit(struct bc_state *bcs)
 	bcs->emptycount = 0;
 #endif
 
-	bcs->fcs = PPP_INITFCS;
+	bcs->rx_fcs = PPP_INITFCS;
 	bcs->chstate = 0;
 
 	bcs->ignore = cs->ignoreframes;
-	if (bcs->ignore) {
-		dev_kfree_skb(bcs->skb);
-		bcs->skb = NULL;
-	}
+	dev_kfree_skb(bcs->rx_skb);
+	bcs->rx_skb = NULL;
 
 	cs->ops->reinitbcshw(bcs);
 }
diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index 05947f9c1849..f77ec54eb07d 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -45,10 +45,6 @@
 #define MAX_EVENTS 64		/* size of event queue */
 
 #define RBUFSIZE 8192
-#define SBUFSIZE 4096		/* sk_buff payload size */
-
-#define TRANSBUFSIZE 768	/* bytes per skb for transparent receive */
-#define MAX_BUF_SIZE (SBUFSIZE - 2)	/* Max. size of a data packet from LL */
 
 /* compile time options */
 #define GIG_MAJOR 0
@@ -380,8 +376,10 @@ struct bc_state {
 
 	struct at_state_t at_state;
 
-	__u16 fcs;
-	struct sk_buff *skb;
+	/* receive buffer */
+	unsigned rx_bufsize;		/* max size accepted by application */
+	struct sk_buff *rx_skb;
+	__u16 rx_fcs;
 	int inputstate;			/* see INS_XXXX */
 
 	int channel;
@@ -801,8 +799,23 @@ static inline void gigaset_bchannel_up(struct bc_state *bcs)
 	gigaset_schedule_event(bcs->cs);
 }
 
-/* handling routines for sk_buff */
-/* ============================= */
+/* set up next receive skb for data mode */
+static inline struct sk_buff *gigaset_new_rx_skb(struct bc_state *bcs)
+{
+	struct cardstate *cs = bcs->cs;
+	unsigned short hw_hdr_len = cs->hw_hdr_len;
+
+	if (bcs->ignore) {
+		bcs->rx_skb = NULL;
+	} else {
+		bcs->rx_skb = dev_alloc_skb(bcs->rx_bufsize + hw_hdr_len);
+		if (bcs->rx_skb == NULL)
+			dev_warn(cs->dev, "could not allocate skb\n");
+		else
+			skb_reserve(bcs->rx_skb, hw_hdr_len);
+	}
+	return bcs->rx_skb;
+}
 
 /* append received bytes to inbuf */
 int gigaset_fill_inbuf(struct inbuf_t *inbuf, const unsigned char *src,
diff --git a/drivers/isdn/gigaset/i4l.c b/drivers/isdn/gigaset/i4l.c
index c22e5ace8276..f01c3c2e2e46 100644
--- a/drivers/isdn/gigaset/i4l.c
+++ b/drivers/isdn/gigaset/i4l.c
@@ -16,7 +16,10 @@
 #include "gigaset.h"
 #include <linux/isdnif.h>
 
+#define SBUFSIZE	4096	/* sk_buff payload size */
+#define TRANSBUFSIZE	768	/* bytes per skb for transparent receive */
 #define HW_HDR_LEN	2	/* Header size used to store ack info */
+#define MAX_BUF_SIZE	(SBUFSIZE - HW_HDR_LEN)	/* max data packet from LL */
 
 /* == Handling of I4L IO =====================================================*/
 
@@ -231,6 +234,15 @@ static int command_from_LL(isdn_ctrl *cntrl)
 			dev_err(cs->dev, "ISDN_CMD_DIAL: channel not free\n");
 			return -EBUSY;
 		}
+		switch (bcs->proto2) {
+		case L2_HDLC:
+			bcs->rx_bufsize = SBUFSIZE;
+			break;
+		default:			/* assume transparent */
+			bcs->rx_bufsize = TRANSBUFSIZE;
+		}
+		dev_kfree_skb(bcs->rx_skb);
+		gigaset_new_rx_skb(bcs);
 
 		commands = kzalloc(AT_NUM*(sizeof *commands), GFP_ATOMIC);
 		if (!commands) {
@@ -314,6 +326,15 @@ static int command_from_LL(isdn_ctrl *cntrl)
 			return -EINVAL;
 		}
 		bcs = cs->bcs + ch;
+		switch (bcs->proto2) {
+		case L2_HDLC:
+			bcs->rx_bufsize = SBUFSIZE;
+			break;
+		default:			/* assume transparent */
+			bcs->rx_bufsize = TRANSBUFSIZE;
+		}
+		dev_kfree_skb(bcs->rx_skb);
+		gigaset_new_rx_skb(bcs);
 		if (!gigaset_add_event(cs, &bcs->at_state,
 				       EV_ACCEPT, NULL, 0, NULL))
 			return -ENOMEM;
diff --git a/drivers/isdn/gigaset/isocdata.c b/drivers/isdn/gigaset/isocdata.c
index 16fd3bd48883..2dfd346fc889 100644
--- a/drivers/isdn/gigaset/isocdata.c
+++ b/drivers/isdn/gigaset/isocdata.c
@@ -500,19 +500,18 @@ int gigaset_isoc_buildframe(struct bc_state *bcs, unsigned char *in, int len)
  */
 static inline void hdlc_putbyte(unsigned char c, struct bc_state *bcs)
 {
-	bcs->fcs = crc_ccitt_byte(bcs->fcs, c);
-	if (unlikely(bcs->skb == NULL)) {
+	bcs->rx_fcs = crc_ccitt_byte(bcs->rx_fcs, c);
+	if (bcs->rx_skb == NULL)
 		/* skipping */
 		return;
-	}
-	if (unlikely(bcs->skb->len == SBUFSIZE)) {
+	if (bcs->rx_skb->len >= bcs->rx_bufsize) {
 		dev_warn(bcs->cs->dev, "received oversized packet discarded\n");
 		bcs->hw.bas->giants++;
-		dev_kfree_skb_any(bcs->skb);
-		bcs->skb = NULL;
+		dev_kfree_skb_any(bcs->rx_skb);
+		bcs->rx_skb = NULL;
 		return;
 	}
-	*__skb_put(bcs->skb, 1) = c;
+	*__skb_put(bcs->rx_skb, 1) = c;
 }
 
 /* hdlc_flush
@@ -521,18 +520,13 @@ static inline void hdlc_putbyte(unsigned char c, struct bc_state *bcs)
 static inline void hdlc_flush(struct bc_state *bcs)
 {
 	/* clear skb or allocate new if not skipping */
-	if (likely(bcs->skb != NULL))
-		skb_trim(bcs->skb, 0);
-	else if (!bcs->ignore) {
-		bcs->skb = dev_alloc_skb(SBUFSIZE + bcs->cs->hw_hdr_len);
-		if (bcs->skb)
-			skb_reserve(bcs->skb, bcs->cs->hw_hdr_len);
-		else
-			dev_err(bcs->cs->dev, "could not allocate skb\n");
-	}
+	if (bcs->rx_skb != NULL)
+		skb_trim(bcs->rx_skb, 0);
+	else
+		gigaset_new_rx_skb(bcs);
 
 	/* reset packet state */
-	bcs->fcs = PPP_INITFCS;
+	bcs->rx_fcs = PPP_INITFCS;
 }
 
 /* hdlc_done
@@ -549,7 +543,7 @@ static inline void hdlc_done(struct bc_state *bcs)
 		hdlc_flush(bcs);
 		return;
 	}
-	procskb = bcs->skb;
+	procskb = bcs->rx_skb;
 	if (procskb == NULL) {
 		/* previous error */
 		gig_dbg(DEBUG_ISO, "%s: skb=NULL", __func__);
@@ -560,8 +554,8 @@ static inline void hdlc_done(struct bc_state *bcs)
 		bcs->hw.bas->runts++;
 		dev_kfree_skb_any(procskb);
 		gigaset_isdn_rcv_err(bcs);
-	} else if (bcs->fcs != PPP_GOODFCS) {
-		dev_notice(cs->dev, "frame check error (0x%04x)\n", bcs->fcs);
+	} else if (bcs->rx_fcs != PPP_GOODFCS) {
+		dev_notice(cs->dev, "frame check error\n");
 		bcs->hw.bas->fcserrs++;
 		dev_kfree_skb_any(procskb);
 		gigaset_isdn_rcv_err(bcs);
@@ -574,13 +568,8 @@ static inline void hdlc_done(struct bc_state *bcs)
 		bcs->hw.bas->goodbytes += len;
 		gigaset_skb_rcvd(bcs, procskb);
 	}
-
-	bcs->skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len);
-	if (bcs->skb)
-		skb_reserve(bcs->skb, cs->hw_hdr_len);
-	else
-		dev_err(cs->dev, "could not allocate skb\n");
-	bcs->fcs = PPP_INITFCS;
+	gigaset_new_rx_skb(bcs);
+	bcs->rx_fcs = PPP_INITFCS;
 }
 
 /* hdlc_frag
@@ -597,8 +586,8 @@ static inline void hdlc_frag(struct bc_state *bcs, unsigned inbits)
 	dev_notice(bcs->cs->dev, "received partial byte (%d bits)\n", inbits);
 	bcs->hw.bas->alignerrs++;
 	gigaset_isdn_rcv_err(bcs);
-	__skb_trim(bcs->skb, 0);
-	bcs->fcs = PPP_INITFCS;
+	__skb_trim(bcs->rx_skb, 0);
+	bcs->rx_fcs = PPP_INITFCS;
 }
 
 /* bit counts lookup table for HDLC bit unstuffing
@@ -847,7 +836,6 @@ static inline void hdlc_unpack(unsigned char *src, unsigned count,
 static inline void trans_receive(unsigned char *src, unsigned count,
 				 struct bc_state *bcs)
 {
-	struct cardstate *cs = bcs->cs;
 	struct sk_buff *skb;
 	int dobytes;
 	unsigned char *dst;
@@ -857,17 +845,11 @@ static inline void trans_receive(unsigned char *src, unsigned count,
 		hdlc_flush(bcs);
 		return;
 	}
-	skb = bcs->skb;
-	if (unlikely(skb == NULL)) {
-		bcs->skb = skb = dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len);
-		if (!skb) {
-			dev_err(cs->dev, "could not allocate skb\n");
-			return;
-		}
-		skb_reserve(skb, cs->hw_hdr_len);
-	}
+	skb = bcs->rx_skb;
+	if (skb == NULL)
+		skb = gigaset_new_rx_skb(bcs);
 	bcs->hw.bas->goodbytes += skb->len;
-	dobytes = TRANSBUFSIZE - skb->len;
+	dobytes = bcs->rx_bufsize - skb->len;
 	while (count > 0) {
 		dst = skb_put(skb, count < dobytes ? count : dobytes);
 		while (count > 0 && dobytes > 0) {
@@ -879,14 +861,10 @@ static inline void trans_receive(unsigned char *src, unsigned count,
 			dump_bytes(DEBUG_STREAM_DUMP,
 				   "rcv data", skb->data, skb->len);
 			gigaset_skb_rcvd(bcs, skb);
-			bcs->skb = skb =
-				dev_alloc_skb(SBUFSIZE + cs->hw_hdr_len);
-			if (!skb) {
-				dev_err(cs->dev, "could not allocate skb\n");
+			skb = gigaset_new_rx_skb(bcs);
+			if (skb == NULL)
 				return;
-			}
-			skb_reserve(skb, cs->hw_hdr_len);
-			dobytes = TRANSBUFSIZE;
+			dobytes = bcs->rx_bufsize;
 		}
 	}
 }
-- 
cgit v1.2.3-55-g7522


From 278a582989ade4cb5335762d6c5999562018859d Mon Sep 17 00:00:00 2001
From: Tilman Schmidt
Date: Mon, 21 Jun 2010 13:54:35 +0000
Subject: isdn/gigaset: correct CAPI voice connection encoding

Make the Gigaset CAPI driver select L2_VOICE (AT^SBPR=2) as the
layer 2 encoding for transparent connections, like the ISDN4Linux
variant.  L2_BITSYNC (AT^SBPR=0) mutes internal connections and
distorts external ones.

Impact: bugfix
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/isdn/gigaset/capi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 245a6083f79d..cb55ead557cc 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -1327,13 +1327,13 @@ static void do_connect_req(struct gigaset_capi_ctr *iif,
 			bcs->proto2 = L2_HDLC;
 			break;
 		case 1:
-			bcs->proto2 = L2_BITSYNC;
+			bcs->proto2 = L2_VOICE;
 			break;
 		default:
 			dev_warn(cs->dev,
 			    "B1 Protocol %u unsupported, using Transparent\n",
 				 cmsg->B1protocol);
-			bcs->proto2 = L2_BITSYNC;
+			bcs->proto2 = L2_VOICE;
 		}
 		if (cmsg->B2protocol != 1)
 			dev_warn(cs->dev,
@@ -1456,13 +1456,13 @@ static void do_connect_resp(struct gigaset_capi_ctr *iif,
 				bcs->proto2 = L2_HDLC;
 				break;
 			case 1:
-				bcs->proto2 = L2_BITSYNC;
+				bcs->proto2 = L2_VOICE;
 				break;
 			default:
 				dev_warn(cs->dev,
 			"B1 Protocol %u unsupported, using Transparent\n",
 					 cmsg->B1protocol);
-				bcs->proto2 = L2_BITSYNC;
+				bcs->proto2 = L2_VOICE;
 			}
 			if (cmsg->B2protocol != 1)
 				dev_warn(cs->dev,
-- 
cgit v1.2.3-55-g7522


From 23b36778b4c82577746d26e4ac0ae66c6f462475 Mon Sep 17 00:00:00 2001
From: Tilman Schmidt
Date: Mon, 21 Jun 2010 13:54:50 +0000
Subject: isdn/gigaset: correct CAPI DATA_B3 Delivery Confirmation

The Gigaset CAPI driver handled all DATA_B3_REQ messages as if the
Delivery Confirmation flag bit was set, delaying the emission of the
DATA_B3_CONF reply until the data was actually transmitted. Some
CAPI applications (notably Asterisk) aren't happy with that
behaviour. Change it to actually evaluate the Delivery Confirmation
flag as described the CAPI specification.

Impact: bugfix
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/isdn/gigaset/capi.c | 83 ++++++++++++++++++++++++++++-----------------
 1 file changed, 51 insertions(+), 32 deletions(-)

diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index cb55ead557cc..e685123fef48 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -320,6 +320,39 @@ static const char *format_ie(const char *ie)
 	return result;
 }
 
+/*
+ * emit DATA_B3_CONF message
+ */
+static void send_data_b3_conf(struct cardstate *cs, struct capi_ctr *ctr,
+			      u16 appl, u16 msgid, int channel,
+			      u16 handle, u16 info)
+{
+	struct sk_buff *cskb;
+	u8 *msg;
+
+	cskb = alloc_skb(CAPI_DATA_B3_CONF_LEN, GFP_ATOMIC);
+	if (!cskb) {
+		dev_err(cs->dev, "%s: out of memory\n", __func__);
+		return;
+	}
+	/* frequent message, avoid _cmsg overhead */
+	msg = __skb_put(cskb, CAPI_DATA_B3_CONF_LEN);
+	CAPIMSG_SETLEN(msg, CAPI_DATA_B3_CONF_LEN);
+	CAPIMSG_SETAPPID(msg, appl);
+	CAPIMSG_SETCOMMAND(msg, CAPI_DATA_B3);
+	CAPIMSG_SETSUBCOMMAND(msg,  CAPI_CONF);
+	CAPIMSG_SETMSGID(msg, msgid);
+	CAPIMSG_SETCONTROLLER(msg, ctr->cnr);
+	CAPIMSG_SETPLCI_PART(msg, channel);
+	CAPIMSG_SETNCCI_PART(msg, 1);
+	CAPIMSG_SETHANDLE_CONF(msg, handle);
+	CAPIMSG_SETINFO_CONF(msg, info);
+
+	/* emit message */
+	dump_rawmsg(DEBUG_MCMD, __func__, msg);
+	capi_ctr_handle_message(ctr, appl, cskb);
+}
+
 
 /*
  * driver interface functions
@@ -340,7 +373,6 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb)
 	struct gigaset_capi_ctr *iif = cs->iif;
 	struct gigaset_capi_appl *ap = bcs->ap;
 	unsigned char *req = skb_mac_header(dskb);
-	struct sk_buff *cskb;
 	u16 flags;
 
 	/* update statistics */
@@ -357,34 +389,17 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb)
 		return;
 	}
 
-	/* ToDo: honor unset "delivery confirmation" bit */
+	/*
+	 * send DATA_B3_CONF if "delivery confirmation" bit was set in request;
+	 * otherwise it has already been sent by do_data_b3_req()
+	 */
 	flags = CAPIMSG_FLAGS(req);
-
-	/* build DATA_B3_CONF message */
-	cskb = alloc_skb(CAPI_DATA_B3_CONF_LEN, GFP_ATOMIC);
-	if (!cskb) {
-		dev_err(cs->dev, "%s: out of memory\n", __func__);
-		return;
-	}
-	/* frequent message, avoid _cmsg overhead */
-	CAPIMSG_SETLEN(cskb->data, CAPI_DATA_B3_CONF_LEN);
-	CAPIMSG_SETAPPID(cskb->data, ap->id);
-	CAPIMSG_SETCOMMAND(cskb->data, CAPI_DATA_B3);
-	CAPIMSG_SETSUBCOMMAND(cskb->data,  CAPI_CONF);
-	CAPIMSG_SETMSGID(cskb->data, CAPIMSG_MSGID(req));
-	CAPIMSG_SETCONTROLLER(cskb->data, iif->ctr.cnr);
-	CAPIMSG_SETPLCI_PART(cskb->data, bcs->channel + 1);
-	CAPIMSG_SETNCCI_PART(cskb->data, 1);
-	CAPIMSG_SETHANDLE_CONF(cskb->data, CAPIMSG_HANDLE_REQ(req));
-	if (flags & ~CAPI_FLAGS_DELIVERY_CONFIRMATION)
-		CAPIMSG_SETINFO_CONF(cskb->data,
-				     CapiFlagsNotSupportedByProtocol);
-	else
-		CAPIMSG_SETINFO_CONF(cskb->data, CAPI_NOERROR);
-
-	/* emit message */
-	dump_rawmsg(DEBUG_LLDATA, "DATA_B3_CONF", cskb->data);
-	capi_ctr_handle_message(&iif->ctr, ap->id, cskb);
+	if (flags & CAPI_FLAGS_DELIVERY_CONFIRMATION)
+		send_data_b3_conf(cs, &iif->ctr, ap->id, CAPIMSG_MSGID(req),
+				  bcs->channel + 1, CAPIMSG_HANDLE_REQ(req),
+				  (flags & ~CAPI_FLAGS_DELIVERY_CONFIRMATION) ?
+					CapiFlagsNotSupportedByProtocol :
+					CAPI_NOERROR);
 }
 EXPORT_SYMBOL_GPL(gigaset_skb_sent);
 
@@ -1795,6 +1810,8 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif,
 	u16 msglen = CAPIMSG_LEN(skb->data);
 	u16 datalen = CAPIMSG_DATALEN(skb->data);
 	u16 flags = CAPIMSG_FLAGS(skb->data);
+	u16 msgid = CAPIMSG_MSGID(skb->data);
+	u16 handle = CAPIMSG_HANDLE_REQ(skb->data);
 
 	/* frequent message, avoid _cmsg overhead */
 	dump_rawmsg(DEBUG_LLDATA, "DATA_B3_REQ", skb->data);
@@ -1845,12 +1862,14 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif,
 		return;
 	}
 
-	/* DATA_B3_CONF reply will be sent by gigaset_skb_sent() */
-
 	/*
-	 * ToDo: honor unset "delivery confirmation" bit
-	 * (send DATA_B3_CONF immediately?)
+	 * DATA_B3_CONF will be sent by gigaset_skb_sent() only if "delivery
+	 * confirmation" bit is set; otherwise we have to send it now
 	 */
+	if (!(flags & CAPI_FLAGS_DELIVERY_CONFIRMATION))
+		send_data_b3_conf(cs, &iif->ctr, ap->id, msgid, channel, handle,
+				  flags ? CapiFlagsNotSupportedByProtocol
+					: CAPI_NOERROR);
 }
 
 /*
-- 
cgit v1.2.3-55-g7522


From 1ce368ff288ed872a8fee93b8a2b7706111feb9a Mon Sep 17 00:00:00 2001
From: Tilman Schmidt
Date: Mon, 21 Jun 2010 13:55:05 +0000
Subject: isdn/gigaset: encode HLC and BC together

Adapt to buggy device firmware which accepts setting HLC only in the
same command line as BC, by encoding HLC and BC in a single command
if both are specified, and rejecting HLC without BC.

Impact: bugfix
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/isdn/gigaset/capi.c     | 81 +++++++++++++++++++++++++----------------
 drivers/isdn/gigaset/ev-layer.c |  4 +-
 drivers/isdn/gigaset/gigaset.h  |  5 +--
 3 files changed, 52 insertions(+), 38 deletions(-)

diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index e685123fef48..665673f4d667 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -1166,7 +1166,7 @@ static void do_connect_req(struct gigaset_capi_ctr *iif,
 	char **commands;
 	char *s;
 	u8 *pp;
-	int i, l;
+	int i, l, lbc, lhlc;
 	u16 info;
 
 	/* decode message */
@@ -1293,42 +1293,59 @@ static void do_connect_req(struct gigaset_capi_ctr *iif,
 		goto error;
 	}
 
-	/* check/encode parameter: BC */
-	if (cmsg->BC && cmsg->BC[0]) {
-		/* explicit BC overrides CIP */
-		l = 2*cmsg->BC[0] + 7;
+	/*
+	 * check/encode parameters: BC & HLC
+	 * must be encoded together as device doesn't accept HLC separately
+	 * explicit parameters override values derived from CIP
+	 */
+
+	/* determine lengths */
+	if (cmsg->BC && cmsg->BC[0])		/* BC specified explicitly */
+		lbc = 2*cmsg->BC[0];
+	else if (cip2bchlc[cmsg->CIPValue].bc)	/* BC derived from CIP */
+		lbc = strlen(cip2bchlc[cmsg->CIPValue].bc);
+	else					/* no BC */
+		lbc = 0;
+	if (cmsg->HLC && cmsg->HLC[0])		/* HLC specified explicitly */
+		lhlc = 2*cmsg->HLC[0];
+	else if (cip2bchlc[cmsg->CIPValue].hlc)	/* HLC derived from CIP */
+		lhlc = strlen(cip2bchlc[cmsg->CIPValue].hlc);
+	else					/* no HLC */
+		lhlc = 0;
+
+	if (lbc) {
+		/* have BC: allocate and assemble command string */
+		l = lbc + 7;		/* "^SBC=" + value + "\r" + null byte */
+		if (lhlc)
+			l += lhlc + 7;	/* ";^SHLC=" + value */
 		commands[AT_BC] = kmalloc(l, GFP_KERNEL);
 		if (!commands[AT_BC])
 			goto oom;
 		strcpy(commands[AT_BC], "^SBC=");
-		decode_ie(cmsg->BC, commands[AT_BC]+5);
+		if (cmsg->BC && cmsg->BC[0])	/* BC specified explicitly */
+			decode_ie(cmsg->BC, commands[AT_BC] + 5);
+		else				/* BC derived from CIP */
+			strcpy(commands[AT_BC] + 5,
+			       cip2bchlc[cmsg->CIPValue].bc);
+		if (lhlc) {
+			strcpy(commands[AT_BC] + lbc + 5, ";^SHLC=");
+			if (cmsg->HLC && cmsg->HLC[0])
+				/* HLC specified explicitly */
+				decode_ie(cmsg->HLC,
+					  commands[AT_BC] + lbc + 12);
+			else	/* HLC derived from CIP */
+				strcpy(commands[AT_BC] + lbc + 12,
+				       cip2bchlc[cmsg->CIPValue].hlc);
+		}
 		strcpy(commands[AT_BC] + l - 2, "\r");
-	} else if (cip2bchlc[cmsg->CIPValue].bc) {
-		l = strlen(cip2bchlc[cmsg->CIPValue].bc) + 7;
-		commands[AT_BC] = kmalloc(l, GFP_KERNEL);
-		if (!commands[AT_BC])
-			goto oom;
-		snprintf(commands[AT_BC], l, "^SBC=%s\r",
-			 cip2bchlc[cmsg->CIPValue].bc);
-	}
-
-	/* check/encode parameter: HLC */
-	if (cmsg->HLC && cmsg->HLC[0]) {
-		/* explicit HLC overrides CIP */
-		l = 2*cmsg->HLC[0] + 7;
-		commands[AT_HLC] = kmalloc(l, GFP_KERNEL);
-		if (!commands[AT_HLC])
-			goto oom;
-		strcpy(commands[AT_HLC], "^SHLC=");
-		decode_ie(cmsg->HLC, commands[AT_HLC]+5);
-		strcpy(commands[AT_HLC] + l - 2, "\r");
-	} else if (cip2bchlc[cmsg->CIPValue].hlc) {
-		l = strlen(cip2bchlc[cmsg->CIPValue].hlc) + 7;
-		commands[AT_HLC] = kmalloc(l, GFP_KERNEL);
-		if (!commands[AT_HLC])
-			goto oom;
-		snprintf(commands[AT_HLC], l, "^SHLC=%s\r",
-			 cip2bchlc[cmsg->CIPValue].hlc);
+	} else {
+		/* no BC */
+		if (lhlc) {
+			dev_notice(cs->dev, "%s: cannot set HLC without BC\n",
+				   "CONNECT_REQ");
+			info = CapiIllMessageParmCoding; /* ? */
+			goto error;
+		}
 	}
 
 	/* check/encode parameter: B Protocol */
diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c
index 206c380c5235..ceaef9a04a42 100644
--- a/drivers/isdn/gigaset/ev-layer.c
+++ b/drivers/isdn/gigaset/ev-layer.c
@@ -282,9 +282,7 @@ struct reply_t gigaset_tab_cid[] =
 /* dial */
 {EV_DIAL,	 -1,  -1, -1,			 -1, -1, {ACT_DIAL} },
 {RSP_INIT,	  0,   0, SEQ_DIAL,		601,  5, {ACT_CMD+AT_BC} },
-{RSP_OK,	601, 601, -1,			602,  5, {ACT_CMD+AT_HLC} },
-{RSP_NULL,	602, 602, -1,			603,  5, {ACT_CMD+AT_PROTO} },
-{RSP_OK,	602, 602, -1,			603,  5, {ACT_CMD+AT_PROTO} },
+{RSP_OK,	601, 601, -1,			603,  5, {ACT_CMD+AT_PROTO} },
 {RSP_OK,	603, 603, -1,			604,  5, {ACT_CMD+AT_TYPE} },
 {RSP_OK,	604, 604, -1,			605,  5, {ACT_CMD+AT_MSN} },
 {RSP_NULL,	605, 605, -1,			606,  5, {ACT_CMD+AT_CLIP} },
diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index f77ec54eb07d..c4e6c26897ea 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -186,10 +186,9 @@ void gigaset_dbg_buffer(enum debuglevel level, const unsigned char *msg,
 #define AT_BC		3
 #define AT_PROTO	4
 #define AT_TYPE		5
-#define AT_HLC		6
-#define AT_CLIP		7
+#define AT_CLIP		6
 /* total number */
-#define AT_NUM		8
+#define AT_NUM		7
 
 /* variables in struct at_state_t */
 #define VAR_ZSAU	0
-- 
cgit v1.2.3-55-g7522


From 1b4843c5e8cbab86830da8a53b8288882060c059 Mon Sep 17 00:00:00 2001
From: Tilman Schmidt
Date: Mon, 21 Jun 2010 13:55:20 +0000
Subject: isdn/gigaset: correct CAPI connection state storage

CAPI applications can handle several connections in parallel,
so one connection state per application isn't sufficient.
Store the connection state in the channel structure instead.

Impact: bugfix
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/isdn/gigaset/capi.c    | 225 +++++++++++++++++++++++++++++++----------
 drivers/isdn/gigaset/common.c  |   4 +
 drivers/isdn/gigaset/gigaset.h |   4 +-
 3 files changed, 180 insertions(+), 53 deletions(-)

diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
index 665673f4d667..6fbe8999c419 100644
--- a/drivers/isdn/gigaset/capi.c
+++ b/drivers/isdn/gigaset/capi.c
@@ -70,7 +70,7 @@
 #define MAX_NUMBER_DIGITS 20
 #define MAX_FMT_IE_LEN 20
 
-/* values for gigaset_capi_appl.connected */
+/* values for bcs->apconnstate */
 #define APCONN_NONE	0	/* inactive/listening */
 #define APCONN_SETUP	1	/* connecting */
 #define APCONN_ACTIVE	2	/* B channel up */
@@ -84,7 +84,6 @@ struct gigaset_capi_appl {
 	u16 nextMessageNumber;
 	u32 listenInfoMask;
 	u32 listenCIPmask;
-	int connected;
 };
 
 /* CAPI specific controller data structure */
@@ -384,7 +383,7 @@ void gigaset_skb_sent(struct bc_state *bcs, struct sk_buff *dskb)
 	}
 
 	/* don't send further B3 messages if disconnected */
-	if (ap->connected < APCONN_ACTIVE) {
+	if (bcs->apconnstate < APCONN_ACTIVE) {
 		gig_dbg(DEBUG_LLDATA, "disconnected, discarding ack");
 		return;
 	}
@@ -428,7 +427,7 @@ void gigaset_skb_rcvd(struct bc_state *bcs, struct sk_buff *skb)
 	}
 
 	/* don't send further B3 messages if disconnected */
-	if (ap->connected < APCONN_ACTIVE) {
+	if (bcs->apconnstate < APCONN_ACTIVE) {
 		gig_dbg(DEBUG_LLDATA, "disconnected, discarding data");
 		dev_kfree_skb_any(skb);
 		return;
@@ -500,6 +499,7 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
 	u32 actCIPmask;
 	struct sk_buff *skb;
 	unsigned int msgsize;
+	unsigned long flags;
 	int i;
 
 	/*
@@ -624,7 +624,14 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
 		format_ie(iif->hcmsg.CalledPartyNumber));
 
 	/* scan application list for matching listeners */
-	bcs->ap = NULL;
+	spin_lock_irqsave(&bcs->aplock, flags);
+	if (bcs->ap != NULL || bcs->apconnstate != APCONN_NONE) {
+		dev_warn(cs->dev, "%s: channel not properly cleared (%p/%d)\n",
+			 __func__, bcs->ap, bcs->apconnstate);
+		bcs->ap = NULL;
+		bcs->apconnstate = APCONN_NONE;
+	}
+	spin_unlock_irqrestore(&bcs->aplock, flags);
 	actCIPmask = 1 | (1 << iif->hcmsg.CIPValue);
 	list_for_each_entry(ap, &iif->appls, ctrlist)
 		if (actCIPmask & ap->listenCIPmask) {
@@ -642,10 +649,12 @@ int gigaset_isdn_icall(struct at_state_t *at_state)
 			dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
 
 			/* add to listeners on this B channel, update state */
+			spin_lock_irqsave(&bcs->aplock, flags);
 			ap->bcnext = bcs->ap;
 			bcs->ap = ap;
 			bcs->chstate |= CHS_NOTIFY_LL;
-			ap->connected = APCONN_SETUP;
+			bcs->apconnstate = APCONN_SETUP;
+			spin_unlock_irqrestore(&bcs->aplock, flags);
 
 			/* emit message */
 			capi_ctr_handle_message(&iif->ctr, ap->id, skb);
@@ -670,7 +679,7 @@ static void send_disconnect_ind(struct bc_state *bcs,
 	struct gigaset_capi_ctr *iif = cs->iif;
 	struct sk_buff *skb;
 
-	if (ap->connected == APCONN_NONE)
+	if (bcs->apconnstate == APCONN_NONE)
 		return;
 
 	capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_DISCONNECT, CAPI_IND,
@@ -684,7 +693,6 @@ static void send_disconnect_ind(struct bc_state *bcs,
 	}
 	capi_cmsg2message(&iif->hcmsg, __skb_put(skb, CAPI_DISCONNECT_IND_LEN));
 	dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
-	ap->connected = APCONN_NONE;
 	capi_ctr_handle_message(&iif->ctr, ap->id, skb);
 }
 
@@ -701,9 +709,9 @@ static void send_disconnect_b3_ind(struct bc_state *bcs,
 	struct sk_buff *skb;
 
 	/* nothing to do if no logical connection active */
-	if (ap->connected < APCONN_ACTIVE)
+	if (bcs->apconnstate < APCONN_ACTIVE)
 		return;
-	ap->connected = APCONN_SETUP;
+	bcs->apconnstate = APCONN_SETUP;
 
 	capi_cmsg_header(&iif->hcmsg, ap->id, CAPI_DISCONNECT_B3, CAPI_IND,
 			 ap->nextMessageNumber++,
@@ -730,14 +738,25 @@ void gigaset_isdn_connD(struct bc_state *bcs)
 {
 	struct cardstate *cs = bcs->cs;
 	struct gigaset_capi_ctr *iif = cs->iif;
-	struct gigaset_capi_appl *ap = bcs->ap;
+	struct gigaset_capi_appl *ap;
 	struct sk_buff *skb;
 	unsigned int msgsize;
+	unsigned long flags;
 
+	spin_lock_irqsave(&bcs->aplock, flags);
+	ap = bcs->ap;
 	if (!ap) {
+		spin_unlock_irqrestore(&bcs->aplock, flags);
 		dev_err(cs->dev, "%s: no application\n", __func__);
 		return;
 	}
+	if (bcs->apconnstate == APCONN_NONE) {
+		spin_unlock_irqrestore(&bcs->aplock, flags);
+		dev_warn(cs->dev, "%s: application %u not connected\n",
+			 __func__, ap->id);
+		return;
+	}
+	spin_unlock_irqrestore(&bcs->aplock, flags);
 	while (ap->bcnext) {
 		/* this should never happen */
 		dev_warn(cs->dev, "%s: dropping extra application %u\n",
@@ -746,11 +765,6 @@ void gigaset_isdn_connD(struct bc_state *bcs)
 				    CapiCallGivenToOtherApplication);
 		ap->bcnext = ap->bcnext->bcnext;
 	}
-	if (ap->connected == APCONN_NONE) {
-		dev_warn(cs->dev, "%s: application %u not connected\n",
-			 __func__, ap->id);
-		return;
-	}
 
 	/* prepare CONNECT_ACTIVE_IND message
 	 * Note: LLC not supported by device
@@ -788,17 +802,24 @@ void gigaset_isdn_connD(struct bc_state *bcs)
 void gigaset_isdn_hupD(struct bc_state *bcs)
 {
 	struct gigaset_capi_appl *ap;
+	unsigned long flags;
 
 	/*
 	 * ToDo: pass on reason code reported by device
 	 * (requires ev-layer state machine extension to collect
 	 * ZCAU device reply)
 	 */
-	for (ap = bcs->ap; ap != NULL; ap = ap->bcnext) {
+	spin_lock_irqsave(&bcs->aplock, flags);
+	while (bcs->ap != NULL) {
+		ap = bcs->ap;
+		bcs->ap = ap->bcnext;
+		spin_unlock_irqrestore(&bcs->aplock, flags);
 		send_disconnect_b3_ind(bcs, ap);
 		send_disconnect_ind(bcs, ap, 0);
+		spin_lock_irqsave(&bcs->aplock, flags);
 	}
-	bcs->ap = NULL;
+	bcs->apconnstate = APCONN_NONE;
+	spin_unlock_irqrestore(&bcs->aplock, flags);
 }
 
 /**
@@ -812,24 +833,21 @@ void gigaset_isdn_connB(struct bc_state *bcs)
 {
 	struct cardstate *cs = bcs->cs;
 	struct gigaset_capi_ctr *iif = cs->iif;
-	struct gigaset_capi_appl *ap = bcs->ap;
+	struct gigaset_capi_appl *ap;
 	struct sk_buff *skb;
+	unsigned long flags;
 	unsigned int msgsize;
 	u8 command;
 
+	spin_lock_irqsave(&bcs->aplock, flags);
+	ap = bcs->ap;
 	if (!ap) {
+		spin_unlock_irqrestore(&bcs->aplock, flags);
 		dev_err(cs->dev, "%s: no application\n", __func__);
 		return;
 	}
-	while (ap->bcnext) {
-		/* this should never happen */
-		dev_warn(cs->dev, "%s: dropping extra application %u\n",
-			 __func__, ap->bcnext->id);
-		send_disconnect_ind(bcs, ap->bcnext,
-				    CapiCallGivenToOtherApplication);
-		ap->bcnext = ap->bcnext->bcnext;
-	}
-	if (!ap->connected) {
+	if (!bcs->apconnstate) {
+		spin_unlock_irqrestore(&bcs->aplock, flags);
 		dev_warn(cs->dev, "%s: application %u not connected\n",
 			 __func__, ap->id);
 		return;
@@ -841,13 +859,26 @@ void gigaset_isdn_connB(struct bc_state *bcs)
 	 * CONNECT_B3_ACTIVE_IND in reply to CONNECT_B3_RESP
 	 * Parameters in both cases always: NCCI = 1, NCPI empty
 	 */
-	if (ap->connected >= APCONN_ACTIVE) {
+	if (bcs->apconnstate >= APCONN_ACTIVE) {
 		command = CAPI_CONNECT_B3_ACTIVE;
 		msgsize = CAPI_CONNECT_B3_ACTIVE_IND_BASELEN;
 	} else {
 		command = CAPI_CONNECT_B3;
 		msgsize = CAPI_CONNECT_B3_IND_BASELEN;
 	}
+	bcs->apconnstate = APCONN_ACTIVE;
+
+	spin_unlock_irqrestore(&bcs->aplock, flags);
+
+	while (ap->bcnext) {
+		/* this should never happen */
+		dev_warn(cs->dev, "%s: dropping extra application %u\n",
+			 __func__, ap->bcnext->id);
+		send_disconnect_ind(bcs, ap->bcnext,
+				    CapiCallGivenToOtherApplication);
+		ap->bcnext = ap->bcnext->bcnext;
+	}
+
 	capi_cmsg_header(&iif->hcmsg, ap->id, command, CAPI_IND,
 			 ap->nextMessageNumber++,
 			 iif->ctr.cnr | ((bcs->channel + 1) << 8) | (1 << 16));
@@ -858,7 +889,6 @@ void gigaset_isdn_connB(struct bc_state *bcs)
 	}
 	capi_cmsg2message(&iif->hcmsg, __skb_put(skb, msgsize));
 	dump_cmsg(DEBUG_CMD, __func__, &iif->hcmsg);
-	ap->connected = APCONN_ACTIVE;
 	capi_ctr_handle_message(&iif->ctr, ap->id, skb);
 }
 
@@ -964,6 +994,61 @@ static void gigaset_register_appl(struct capi_ctr *ctr, u16 appl,
 	ap->rp = *rp;
 
 	list_add(&ap->ctrlist, &iif->appls);
+	dev_info(cs->dev, "application %u registered\n", ap->id);
+}
+
+/*
+ * remove CAPI application from channel
+ * helper function to keep indentation levels down and stay in 80 columns
+ */
+
+static inline void remove_appl_from_channel(struct bc_state *bcs,
+					    struct gigaset_capi_appl *ap)
+{
+	struct cardstate *cs = bcs->cs;
+	struct gigaset_capi_appl *bcap;
+	unsigned long flags;
+	int prevconnstate;
+
+	spin_lock_irqsave(&bcs->aplock, flags);
+	bcap = bcs->ap;
+	if (bcap == NULL) {
+		spin_unlock_irqrestore(&bcs->aplock, flags);
+		return;
+	}
+
+	/* check first application on channel */
+	if (bcap == ap) {
+		bcs->ap = ap->bcnext;
+		if (bcs->ap != NULL) {
+			spin_unlock_irqrestore(&bcs->aplock, flags);
+			return;
+		}
+
+		/* none left, clear channel state */
+		prevconnstate = bcs->apconnstate;
+		bcs->apconnstate = APCONN_NONE;
+		spin_unlock_irqrestore(&bcs->aplock, flags);
+
+		if (prevconnstate == APCONN_ACTIVE) {
+			dev_notice(cs->dev, "%s: hanging up channel %u\n",
+				   __func__, bcs->channel);
+			gigaset_add_event(cs, &bcs->at_state,
+					  EV_HUP, NULL, 0, NULL);
+			gigaset_schedule_event(cs);
+		}
+		return;
+	}
+
+	/* check remaining list */
+	do {
+		if (bcap->bcnext == ap) {
+			bcap->bcnext = bcap->bcnext->bcnext;
+			return;
+		}
+		bcap = bcap->bcnext;
+	} while (bcap != NULL);
+	spin_unlock_irqrestore(&bcs->aplock, flags);
 }
 
 /*
@@ -975,19 +1060,19 @@ static void gigaset_release_appl(struct capi_ctr *ctr, u16 appl)
 		= container_of(ctr, struct gigaset_capi_ctr, ctr);
 	struct cardstate *cs = iif->ctr.driverdata;
 	struct gigaset_capi_appl *ap, *tmp;
+	unsigned ch;
 
 	list_for_each_entry_safe(ap, tmp, &iif->appls, ctrlist)
 		if (ap->id == appl) {
-			if (ap->connected != APCONN_NONE) {
-				dev_err(cs->dev,
-					"%s: application %u still connected\n",
-					__func__, ap->id);
-				/* ToDo: clear active connection */
-			}
+			/* remove from any channels */
+			for (ch = 0; ch < cs->channels; ch++)
+				remove_appl_from_channel(&cs->bcs[ch], ap);
+
+			/* remove from registration list */
 			list_del(&ap->ctrlist);
 			kfree(ap);
+			dev_info(cs->dev, "application %u released\n", appl);
 		}
-
 }
 
 /*
@@ -1166,6 +1251,7 @@ static void do_connect_req(struct gigaset_capi_ctr *iif,
 	char **commands;
 	char *s;
 	u8 *pp;
+	unsigned long flags;
 	int i, l, lbc, lhlc;
 	u16 info;
 
@@ -1181,8 +1267,15 @@ static void do_connect_req(struct gigaset_capi_ctr *iif,
 		send_conf(iif, ap, skb, CapiNoPlciAvailable);
 		return;
 	}
+	spin_lock_irqsave(&bcs->aplock, flags);
+	if (bcs->ap != NULL || bcs->apconnstate != APCONN_NONE)
+		dev_warn(cs->dev, "%s: channel not properly cleared (%p/%d)\n",
+			 __func__, bcs->ap, bcs->apconnstate);
 	ap->bcnext = NULL;
 	bcs->ap = ap;
+	bcs->apconnstate = APCONN_SETUP;
+	spin_unlock_irqrestore(&bcs->aplock, flags);
+
 	bcs->rx_bufsize = ap->rp.datablklen;
 	dev_kfree_skb(bcs->rx_skb);
 	gigaset_new_rx_skb(bcs);
@@ -1419,7 +1512,6 @@ static void do_connect_req(struct gigaset_capi_ctr *iif,
 		goto error;
 	}
 	gigaset_schedule_event(cs);
-	ap->connected = APCONN_SETUP;
 	send_conf(iif, ap, skb, CapiSuccess);
 	return;
 
@@ -1447,6 +1539,7 @@ static void do_connect_resp(struct gigaset_capi_ctr *iif,
 	_cmsg *cmsg = &iif->acmsg;
 	struct bc_state *bcs;
 	struct gigaset_capi_appl *oap;
+	unsigned long flags;
 	int channel;
 
 	/* decode message */
@@ -1466,12 +1559,21 @@ static void do_connect_resp(struct gigaset_capi_ctr *iif,
 	switch (cmsg->Reject) {
 	case 0:		/* Accept */
 		/* drop all competing applications, keep only this one */
-		for (oap = bcs->ap; oap != NULL; oap = oap->bcnext)
-			if (oap != ap)
+		spin_lock_irqsave(&bcs->aplock, flags);
+		while (bcs->ap != NULL) {
+			oap = bcs->ap;
+			bcs->ap = oap->bcnext;
+			if (oap != ap) {
+				spin_unlock_irqrestore(&bcs->aplock, flags);
 				send_disconnect_ind(bcs, oap,
 					CapiCallGivenToOtherApplication);
+				spin_lock_irqsave(&bcs->aplock, flags);
+			}
+		}
 		ap->bcnext = NULL;
 		bcs->ap = ap;
+		spin_unlock_irqrestore(&bcs->aplock, flags);
+
 		bcs->rx_bufsize = ap->rp.datablklen;
 		dev_kfree_skb(bcs->rx_skb);
 		gigaset_new_rx_skb(bcs);
@@ -1542,31 +1644,45 @@ static void do_connect_resp(struct gigaset_capi_ctr *iif,
 		send_disconnect_ind(bcs, ap, 0);
 
 		/* remove it from the list of listening apps */
+		spin_lock_irqsave(&bcs->aplock, flags);
 		if (bcs->ap == ap) {
 			bcs->ap = ap->bcnext;
-			if (bcs->ap == NULL)
+			if (bcs->ap == NULL) {
 				/* last one: stop ev-layer hupD notifications */
+				bcs->apconnstate = APCONN_NONE;
 				bcs->chstate &= ~CHS_NOTIFY_LL;
+			}
+			spin_unlock_irqrestore(&bcs->aplock, flags);
 			return;
 		}
 		for (oap = bcs->ap; oap != NULL; oap = oap->bcnext) {
 			if (oap->bcnext == ap) {
 				oap->bcnext = oap->bcnext->bcnext;
+				spin_unlock_irqrestore(&bcs->aplock, flags);
 				return;
 			}
 		}
+		spin_unlock_irqrestore(&bcs->aplock, flags);
 		dev_err(cs->dev, "%s: application %u not found\n",
 			__func__, ap->id);
 		return;
 
 	default:		/* Reject */
 		/* drop all competing applications, keep only this one */
-		for (oap = bcs->ap; oap != NULL; oap = oap->bcnext)
-			if (oap != ap)
+		spin_lock_irqsave(&bcs->aplock, flags);
+		while (bcs->ap != NULL) {
+			oap = bcs->ap;
+			bcs->ap = oap->bcnext;
+			if (oap != ap) {
+				spin_unlock_irqrestore(&bcs->aplock, flags);
 				send_disconnect_ind(bcs, oap,
 					CapiCallGivenToOtherApplication);
+				spin_lock_irqsave(&bcs->aplock, flags);
+			}
+		}
 		ap->bcnext = NULL;
 		bcs->ap = ap;
+		spin_unlock_irqrestore(&bcs->aplock, flags);
 
 		/* reject call - will trigger DISCONNECT_IND for this app */
 		dev_info(cs->dev, "%s: Reject=%x\n",
@@ -1589,6 +1705,7 @@ static void do_connect_b3_req(struct gigaset_capi_ctr *iif,
 {
 	struct cardstate *cs = iif->ctr.driverdata;
 	_cmsg *cmsg = &iif->acmsg;
+	struct bc_state *bcs;
 	int channel;
 
 	/* decode message */
@@ -1603,9 +1720,10 @@ static void do_connect_b3_req(struct gigaset_capi_ctr *iif,
 		send_conf(iif, ap, skb, CapiIllContrPlciNcci);
 		return;
 	}
+	bcs = &cs->bcs[channel-1];
 
 	/* mark logical connection active */
-	ap->connected = APCONN_ACTIVE;
+	bcs->apconnstate = APCONN_ACTIVE;
 
 	/* build NCCI: always 1 (one B3 connection only) */
 	cmsg->adr.adrNCCI |= 1 << 16;
@@ -1651,7 +1769,7 @@ static void do_connect_b3_resp(struct gigaset_capi_ctr *iif,
 
 	if (cmsg->Reject) {
 		/* Reject: clear B3 connect received flag */
-		ap->connected = APCONN_SETUP;
+		bcs->apconnstate = APCONN_SETUP;
 
 		/* trigger hangup, causing eventual DISCONNECT_IND */
 		if (!gigaset_add_event(cs, &bcs->at_state,
@@ -1723,11 +1841,11 @@ static void do_disconnect_req(struct gigaset_capi_ctr *iif,
 	}
 
 	/* skip if DISCONNECT_IND already sent */
-	if (!ap->connected)
+	if (!bcs->apconnstate)
 		return;
 
 	/* check for active logical connection */
-	if (ap->connected >= APCONN_ACTIVE) {
+	if (bcs->apconnstate >= APCONN_ACTIVE) {
 		/*
 		 * emit DISCONNECT_B3_IND with cause 0x3301
 		 * use separate cmsg structure, as the content of iif->acmsg
@@ -1776,6 +1894,7 @@ static void do_disconnect_b3_req(struct gigaset_capi_ctr *iif,
 {
 	struct cardstate *cs = iif->ctr.driverdata;
 	_cmsg *cmsg = &iif->acmsg;
+	struct bc_state *bcs;
 	int channel;
 
 	/* decode message */
@@ -1791,17 +1910,17 @@ static void do_disconnect_b3_req(struct gigaset_capi_ctr *iif,
 		send_conf(iif, ap, skb, CapiIllContrPlciNcci);
 		return;
 	}
+	bcs = &cs->bcs[channel-1];
 
 	/* reject if logical connection not active */
-	if (ap->connected < APCONN_ACTIVE) {
+	if (bcs->apconnstate < APCONN_ACTIVE) {
 		send_conf(iif, ap, skb,
 			  CapiMessageNotSupportedInCurrentState);
 		return;
 	}
 
 	/* trigger hangup, causing eventual DISCONNECT_B3_IND */
-	if (!gigaset_add_event(cs, &cs->bcs[channel-1].at_state,
-			       EV_HUP, NULL, 0, NULL)) {
+	if (!gigaset_add_event(cs, &bcs->at_state, EV_HUP, NULL, 0, NULL)) {
 		send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
 		return;
 	}
@@ -1822,6 +1941,7 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif,
 			   struct sk_buff *skb)
 {
 	struct cardstate *cs = iif->ctr.driverdata;
+	struct bc_state *bcs;
 	int channel = CAPIMSG_PLCI_PART(skb->data);
 	u16 ncci = CAPIMSG_NCCI_PART(skb->data);
 	u16 msglen = CAPIMSG_LEN(skb->data);
@@ -1844,6 +1964,7 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif,
 		send_conf(iif, ap, skb, CapiIllContrPlciNcci);
 		return;
 	}
+	bcs = &cs->bcs[channel-1];
 	if (msglen != CAPI_DATA_B3_REQ_LEN && msglen != CAPI_DATA_B3_REQ_LEN64)
 		dev_notice(cs->dev, "%s: unexpected length %d\n",
 			   "DATA_B3_REQ", msglen);
@@ -1863,7 +1984,7 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif,
 	}
 
 	/* reject if logical connection not active */
-	if (ap->connected < APCONN_ACTIVE) {
+	if (bcs->apconnstate < APCONN_ACTIVE) {
 		send_conf(iif, ap, skb, CapiMessageNotSupportedInCurrentState);
 		return;
 	}
@@ -1874,7 +1995,7 @@ static void do_data_b3_req(struct gigaset_capi_ctr *iif,
 	skb_pull(skb, msglen);
 
 	/* pass to device-specific module */
-	if (cs->ops->send_skb(&cs->bcs[channel-1], skb) < 0) {
+	if (cs->ops->send_skb(bcs, skb) < 0) {
 		send_conf(iif, ap, skb, CAPI_MSGOSRESOURCEERR);
 		return;
 	}
diff --git a/drivers/isdn/gigaset/common.c b/drivers/isdn/gigaset/common.c
index 9778fabbc488..5d4befb81057 100644
--- a/drivers/isdn/gigaset/common.c
+++ b/drivers/isdn/gigaset/common.c
@@ -649,6 +649,10 @@ static struct bc_state *gigaset_initbcs(struct bc_state *bcs,
 	for (i = 0; i < AT_NUM; ++i)
 		bcs->commands[i] = NULL;
 
+	spin_lock_init(&bcs->aplock);
+	bcs->ap = NULL;
+	bcs->apconnstate = 0;
+
 	gig_dbg(DEBUG_INIT, "  setting up bcs[%d]->hw", channel);
 	if (cs->ops->initbcshw(bcs))
 		return bcs;
diff --git a/drivers/isdn/gigaset/gigaset.h b/drivers/isdn/gigaset/gigaset.h
index c4e6c26897ea..8738b0821fc9 100644
--- a/drivers/isdn/gigaset/gigaset.h
+++ b/drivers/isdn/gigaset/gigaset.h
@@ -403,7 +403,9 @@ struct bc_state {
 		struct bas_bc_state *bas;	/* usb hardware driver (base) */
 	} hw;
 
-	void *ap;			/* LL application structure */
+	void *ap;			/* associated LL application */
+	int apconnstate;		/* LL application connection state */
+	spinlock_t aplock;
 };
 
 struct cardstate {
-- 
cgit v1.2.3-55-g7522


From cc413d9097dfc6237f37dcaf52346db1061a6119 Mon Sep 17 00:00:00 2001
From: Michal Schmidt
Date: Thu, 24 Jun 2010 04:13:44 +0000
Subject: vxge: fix memory leak in vxge_alloc_msix() error path

When pci_enable_msix() returned ret<0, entries and vxge_entries were leaked.
While at it, use the centralized exit idiom in the function.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Ram Vepa <ram.vepa@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/vxge/vxge-main.c | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/drivers/net/vxge/vxge-main.c b/drivers/net/vxge/vxge-main.c
index b504bd561362..d14e207de1df 100644
--- a/drivers/net/vxge/vxge-main.c
+++ b/drivers/net/vxge/vxge-main.c
@@ -2262,7 +2262,8 @@ start:
 		vxge_debug_init(VXGE_ERR,
 			"%s: memory allocation failed",
 			VXGE_DRIVER_NAME);
-		return  -ENOMEM;
+		ret = -ENOMEM;
+		goto alloc_entries_failed;
 	}
 
 	vdev->vxge_entries =
@@ -2271,8 +2272,8 @@ start:
 	if (!vdev->vxge_entries) {
 		vxge_debug_init(VXGE_ERR, "%s: memory allocation failed",
 			VXGE_DRIVER_NAME);
-		kfree(vdev->entries);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto alloc_vxge_entries_failed;
 	}
 
 	for (i = 0, j = 0; i < vdev->no_of_vpath; i++) {
@@ -2303,22 +2304,32 @@ start:
 		vxge_debug_init(VXGE_ERR,
 			"%s: MSI-X enable failed for %d vectors, ret: %d",
 			VXGE_DRIVER_NAME, vdev->intr_cnt, ret);
+		if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3)) {
+			ret = -ENODEV;
+			goto enable_msix_failed;
+		}
+
 		kfree(vdev->entries);
 		kfree(vdev->vxge_entries);
 		vdev->entries = NULL;
 		vdev->vxge_entries = NULL;
-
-		if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3))
-			return -ENODEV;
 		/* Try with less no of vector by reducing no of vpaths count */
 		temp = (ret - 1)/2;
 		vxge_close_vpaths(vdev, temp);
 		vdev->no_of_vpath = temp;
 		goto start;
-	} else if (ret < 0)
-		return -ENODEV;
-
+	} else if (ret < 0) {
+		ret = -ENODEV;
+		goto enable_msix_failed;
+	}
 	return 0;
+
+enable_msix_failed:
+	kfree(vdev->vxge_entries);
+alloc_vxge_entries_failed:
+	kfree(vdev->entries);
+alloc_entries_failed:
+	return ret;
 }
 
 static int vxge_enable_msix(struct vxgedev *vdev)
-- 
cgit v1.2.3-55-g7522


From d41de3c10047d5f0b661593a8f4610a19f87621f Mon Sep 17 00:00:00 2001
From: Jiri Slaby
Date: Tue, 22 Jun 2010 01:41:36 +0000
Subject: ISDN: hysdn, fix potential NULL dereference

Stanse found that lp is dereferenced earlier than checked for being
NULL in hysdn_rx_netpkt. Move the initialization below the test.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/isdn/hysdn/hysdn_net.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/isdn/hysdn/hysdn_net.c b/drivers/isdn/hysdn/hysdn_net.c
index 72eb92647c1b..feec8d89d719 100644
--- a/drivers/isdn/hysdn/hysdn_net.c
+++ b/drivers/isdn/hysdn/hysdn_net.c
@@ -187,12 +187,13 @@ void
 hysdn_rx_netpkt(hysdn_card * card, unsigned char *buf, unsigned short len)
 {
 	struct net_local *lp = card->netif;
-	struct net_device *dev = lp->dev;
+	struct net_device *dev;
 	struct sk_buff *skb;
 
 	if (!lp)
 		return;		/* non existing device */
 
+	dev = lp->dev;
 	dev->stats.rx_bytes += len;
 
 	skb = dev_alloc_skb(len);
-- 
cgit v1.2.3-55-g7522


From e2f5b04563786d4b7d7648868de7e941a0649372 Mon Sep 17 00:00:00 2001
From: David Woodhouse
Date: Tue, 22 Jun 2010 02:38:13 +0000
Subject: phylib: Add autoload support for the LXT973 phy.

Commit e13647c1 (phylib: Add support for the LXT973 phy.) added a new ID
but neglected to also add it to the MODULE_DEVICE_TABLE.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/lxt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/phy/lxt.c b/drivers/net/phy/lxt.c
index dbd003453737..29c39ff85de5 100644
--- a/drivers/net/phy/lxt.c
+++ b/drivers/net/phy/lxt.c
@@ -226,6 +226,7 @@ module_exit(lxt_exit);
 static struct mdio_device_id lxt_tbl[] = {
 	{ 0x78100000, 0xfffffff0 },
 	{ 0x001378e0, 0xfffffff0 },
+	{ 0x00137a10, 0xfffffff0 },
 	{ }
 };
 
-- 
cgit v1.2.3-55-g7522


From 4303ef19c6e6d16ea845c04b02b9cf086bcb8ed7 Mon Sep 17 00:00:00 2001
From: Dan Carpenter
Date: Fri, 11 Jun 2010 17:30:05 +0100
Subject: KEYS: Propagate error code instead of returning -EINVAL

This is from a Smatch check I'm writing.

strncpy_from_user() returns -EFAULT on error so the first change just
silences a warning but doesn't change how the code works.

The other change is a bug fix because install_thread_keyring_to_cred()
can return a variety of errors such as -EINVAL, -EEXIST, -ENOMEM or
-EKEYREVOKED.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 security/keys/keyctl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 13074b454743..6261745e4459 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -33,7 +33,7 @@ static int key_get_type_from_user(char *type,
 	ret = strncpy_from_user(type, _type, len);
 
 	if (ret < 0)
-		return -EFAULT;
+		return ret;
 
 	if (ret == 0 || ret >= len)
 		return -EINVAL;
@@ -1080,7 +1080,7 @@ set:
 	return old_setting;
 error:
 	abort_creds(new);
-	return -EINVAL;
+	return ret;
 
 } /* end keyctl_set_reqkey_keyring() */
 
-- 
cgit v1.2.3-55-g7522


From 4ef09889d7b4c7be2aa3e132efb77029f51c95b7 Mon Sep 17 00:00:00 2001
From: Tejun Heo
Date: Tue, 30 Mar 2010 02:52:33 +0900
Subject: v4l-dvb: update gfp/slab.h includes

Implicit slab.h inclusion via percpu.h is about to go away.  Make sure
gfp.h or slab.h is included as necessary.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 drivers/staging/tm6000/tm6000-alsa.c  | 1 +
 drivers/staging/tm6000/tm6000-cards.c | 1 +
 drivers/staging/tm6000/tm6000-core.c  | 1 +
 drivers/staging/tm6000/tm6000-dvb.c   | 1 +
 4 files changed, 4 insertions(+)

diff --git a/drivers/staging/tm6000/tm6000-alsa.c b/drivers/staging/tm6000/tm6000-alsa.c
index ce081cd44ad4..273e26ede650 100644
--- a/drivers/staging/tm6000/tm6000-alsa.c
+++ b/drivers/staging/tm6000/tm6000-alsa.c
@@ -15,6 +15,7 @@
 #include <linux/device.h>
 #include <linux/interrupt.h>
 #include <linux/usb.h>
+#include <linux/slab.h>
 
 #include <asm/delay.h>
 #include <sound/core.h>
diff --git a/drivers/staging/tm6000/tm6000-cards.c b/drivers/staging/tm6000/tm6000-cards.c
index cedd9044022f..6a9ae40c7c6d 100644
--- a/drivers/staging/tm6000/tm6000-cards.c
+++ b/drivers/staging/tm6000/tm6000-cards.c
@@ -24,6 +24,7 @@
 #include <linux/i2c.h>
 #include <linux/usb.h>
 #include <linux/version.h>
+#include <linux/slab.h>
 #include <media/v4l2-common.h>
 #include <media/tuner.h>
 #include <media/tvaudio.h>
diff --git a/drivers/staging/tm6000/tm6000-core.c b/drivers/staging/tm6000/tm6000-core.c
index 27f3f551b545..c3690e3580da 100644
--- a/drivers/staging/tm6000/tm6000-core.c
+++ b/drivers/staging/tm6000/tm6000-core.c
@@ -22,6 +22,7 @@
 
 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <linux/usb.h>
 #include <linux/i2c.h>
 #include "tm6000.h"
diff --git a/drivers/staging/tm6000/tm6000-dvb.c b/drivers/staging/tm6000/tm6000-dvb.c
index 261e66acbe46..86c1c8b5f25a 100644
--- a/drivers/staging/tm6000/tm6000-dvb.c
+++ b/drivers/staging/tm6000/tm6000-dvb.c
@@ -18,6 +18,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/slab.h>
 #include <linux/usb.h>
 
 #include "tm6000.h"
-- 
cgit v1.2.3-55-g7522


From 68aaae9e95199d2bc46a9e8e3670e403b4a3fe75 Mon Sep 17 00:00:00 2001
From: Tejun Heo
Date: Tue, 30 Mar 2010 02:52:45 +0900
Subject: arm: update gfp/slab.h includes

Implicit slab.h inclusion via percpu.h is about to go away.  Make sure
gfp.h or slab.h is included as necessary.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/arm/mach-vexpress/ct-ca9x4.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c
index e6f73030d5f0..9b11eedba65f 100644
--- a/arch/arm/mach-vexpress/ct-ca9x4.c
+++ b/arch/arm/mach-vexpress/ct-ca9x4.c
@@ -2,6 +2,7 @@
  * Versatile Express Core Tile Cortex A9x4 Support
  */
 #include <linux/init.h>
+#include <linux/gfp.h>
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
-- 
cgit v1.2.3-55-g7522


From f244f31a0d31402c2c1b1950108e0013353cc3f3 Mon Sep 17 00:00:00 2001
From: Tejun Heo
Date: Tue, 30 Mar 2010 02:52:36 +0900
Subject: davinci: update gfp/slab.h includes

Implicit slab.h inclusion via percpu.h is about to go away.  Make sure
gfp.h or slab.h is included as necessary.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 drivers/rtc/rtc-davinci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c
index 92a8f6cacda9..34647fc1ee98 100644
--- a/drivers/rtc/rtc-davinci.c
+++ b/drivers/rtc/rtc-davinci.c
@@ -29,6 +29,7 @@
 #include <linux/bcd.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 /*
  * The DaVinci RTC is a simple RTC with the following
-- 
cgit v1.2.3-55-g7522


From 327f935a9ef644c0ec3d050c94bce753756d60c0 Mon Sep 17 00:00:00 2001
From: Tejun Heo
Date: Tue, 30 Mar 2010 02:52:32 +0900
Subject: ocfs2: update gfp/slab.h includes

Implicit slab.h inclusion via percpu.h is about to go away.  Make sure
gfp.h or slab.h is included as necessary.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 fs/ocfs2/reservations.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/ocfs2/reservations.c b/fs/ocfs2/reservations.c
index 40650021fc24..d8b6e4259b80 100644
--- a/fs/ocfs2/reservations.c
+++ b/fs/ocfs2/reservations.c
@@ -26,7 +26,6 @@
 
 #include <linux/fs.h>
 #include <linux/types.h>
-#include <linux/slab.h>
 #include <linux/highmem.h>
 #include <linux/bitops.h>
 #include <linux/list.h>
-- 
cgit v1.2.3-55-g7522


From e0fb8c418520b41d57667befdb8861c46cdf69e0 Mon Sep 17 00:00:00 2001
From: Tejun Heo
Date: Tue, 30 Mar 2010 02:52:44 +0900
Subject: acpi: update gfp/slab.h includes

Implicit slab.h inclusion via percpu.h is about to go away.  Make sure
gfp.h or slab.h is included as necessary.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 drivers/acpi/apei/apei-base.c | 1 +
 drivers/acpi/atomicio.c       | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c
index db3946e9c66b..216e1e948ff6 100644
--- a/drivers/acpi/apei/apei-base.c
+++ b/drivers/acpi/apei/apei-base.c
@@ -34,6 +34,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/acpi.h>
+#include <linux/slab.h>
 #include <linux/io.h>
 #include <linux/kref.h>
 #include <linux/rculist.h>
diff --git a/drivers/acpi/atomicio.c b/drivers/acpi/atomicio.c
index 814b19249616..8f8bd736d4ff 100644
--- a/drivers/acpi/atomicio.c
+++ b/drivers/acpi/atomicio.c
@@ -31,6 +31,7 @@
 #include <linux/kref.h>
 #include <linux/rculist.h>
 #include <linux/interrupt.h>
+#include <linux/slab.h>
 #include <acpi/atomicio.h>
 
 #define ACPI_PFX "ACPI: "
-- 
cgit v1.2.3-55-g7522


From b433c3d4549ae74935b585115f076c6fb7bc48fe Mon Sep 17 00:00:00 2001
From: Peter Zijlstra
Date: Mon, 28 Jun 2010 16:51:01 +0200
Subject: init, sched: Fix race between init and kthreadd

Ilya reported that on a very slow machine he could reliably
reproduce a race between forking init and kthreadd. We first
fork init so that it  obtains pid-1, however since the scheduler
is already fully running at this point it can preempt and run
the init thread before we spawn and set kthreadd_task.

The init thread can then attempt spawning kthreads without
kthreadd being present which results in an OOPS.

Reported-by: Ilya Loginov <isloginov@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <1277736661.3561.110.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 init/main.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/init/main.c b/init/main.c
index 3bdb152f412f..633442f79e90 100644
--- a/init/main.c
+++ b/init/main.c
@@ -422,18 +422,26 @@ static void __init setup_command_line(char *command_line)
  * gcc-3.4 accidentally inlines this function, so use noinline.
  */
 
+static __initdata DECLARE_COMPLETION(kthreadd_done);
+
 static noinline void __init_refok rest_init(void)
 	__releases(kernel_lock)
 {
 	int pid;
 
 	rcu_scheduler_starting();
+	/*
+	 * We need to spawn init first so that it obtains pid-1, however
+	 * the init task will end up wanting to create kthreads, which, if
+	 * we schedule it before we create kthreadd, will OOPS.
+	 */
 	kernel_thread(kernel_init, NULL, CLONE_FS | CLONE_SIGHAND);
 	numa_default_policy();
 	pid = kernel_thread(kthreadd, NULL, CLONE_FS | CLONE_FILES);
 	rcu_read_lock();
 	kthreadd_task = find_task_by_pid_ns(pid, &init_pid_ns);
 	rcu_read_unlock();
+	complete(&kthreadd_done);
 	unlock_kernel();
 
 	/*
@@ -855,6 +863,10 @@ static noinline int init_post(void)
 
 static int __init kernel_init(void * unused)
 {
+	/*
+	 * Wait until kthreadd is all set-up.
+	 */
+	wait_for_completion(&kthreadd_done);
 	lock_kernel();
 
 	/*
-- 
cgit v1.2.3-55-g7522


From 57439f878afafefad8836ebf5c49da2a0a746105 Mon Sep 17 00:00:00 2001
From: npiggin@suse.de
Date: Thu, 24 Jun 2010 13:02:14 +1000
Subject: fs: fix superblock iteration race

list_for_each_entry_safe is not suitable to protect against concurrent
modification of the list. 6754af6 introduced a race in sb walking.

list_for_each_entry can use the trick of pinning the current entry in
the list before we drop and retake the lock because it subsequently
follows cur->next. However list_for_each_entry_safe saves n=cur->next
for following before entering the loop body, so when the lock is
dropped, n may be deleted.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: Frank Mayhar <fmayhar@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/dcache.c          |  2 ++
 fs/super.c           |  6 ++++++
 include/linux/list.h | 15 +++++++++++++++
 3 files changed, 23 insertions(+)

diff --git a/fs/dcache.c b/fs/dcache.c
index d96047b4a633..c8c78ba07827 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -590,6 +590,8 @@ static void prune_dcache(int count)
 			up_read(&sb->s_umount);
 		}
 		spin_lock(&sb_lock);
+		/* lock was dropped, must reset next */
+		list_safe_reset_next(sb, n, s_list);
 		count -= pruned;
 		__put_super(sb);
 		/* more work left to do? */
diff --git a/fs/super.c b/fs/super.c
index 5c35bc7a499e..938119ab8dcb 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -374,6 +374,8 @@ void sync_supers(void)
 			up_read(&sb->s_umount);
 
 			spin_lock(&sb_lock);
+			/* lock was dropped, must reset next */
+			list_safe_reset_next(sb, n, s_list);
 			__put_super(sb);
 		}
 	}
@@ -405,6 +407,8 @@ void iterate_supers(void (*f)(struct super_block *, void *), void *arg)
 		up_read(&sb->s_umount);
 
 		spin_lock(&sb_lock);
+		/* lock was dropped, must reset next */
+		list_safe_reset_next(sb, n, s_list);
 		__put_super(sb);
 	}
 	spin_unlock(&sb_lock);
@@ -585,6 +589,8 @@ static void do_emergency_remount(struct work_struct *work)
 		}
 		up_write(&sb->s_umount);
 		spin_lock(&sb_lock);
+		/* lock was dropped, must reset next */
+		list_safe_reset_next(sb, n, s_list);
 		__put_super(sb);
 	}
 	spin_unlock(&sb_lock);
diff --git a/include/linux/list.h b/include/linux/list.h
index 8392884a2977..5d57a3a1fa1b 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -544,6 +544,21 @@ static inline void list_splice_tail_init(struct list_head *list,
 	     &pos->member != (head); 					\
 	     pos = n, n = list_entry(n->member.prev, typeof(*n), member))
 
+/**
+ * list_safe_reset_next - reset a stale list_for_each_entry_safe loop
+ * @pos:	the loop cursor used in the list_for_each_entry_safe loop
+ * @n:		temporary storage used in list_for_each_entry_safe
+ * @member:	the name of the list_struct within the struct.
+ *
+ * list_safe_reset_next is not safe to use in general if the list may be
+ * modified concurrently (eg. the lock is dropped in the loop body). An
+ * exception to this is if the cursor element (pos) is pinned in the list,
+ * and list_safe_reset_next is called after re-taking the lock and before
+ * completing the current iteration of the loop body.
+ */
+#define list_safe_reset_next(pos, n, member)				\
+	n = list_entry(pos->member.next, typeof(*pos), member)
+
 /*
  * Double linked lists with a single pointer list head.
  * Mostly useful for hash tables where the two pointer list head is
-- 
cgit v1.2.3-55-g7522


From e621ba9932aa0a90e47c12c958b3a3104915f3b9 Mon Sep 17 00:00:00 2001
From: Imre Deak
Date: Tue, 29 Jun 2010 15:05:15 -0700
Subject: genalloc: fix allocation from end of pool

bitmap_find_next_zero_area requires the size of the bitmap, we instead
passed the last suitable position.  This made it impossible to allocate
from the end of the pool.

Fixes a regression introduced by 243797f59b748f679ab88d456fcc4f92236d724b
("genalloc: use bitmap_find_next_zero_area").

Signed-off-by: Imre Deak <imre.deak@nokia.com>
Cc: Zygo Blaxell <zygo.blaxell@xandros.com>
Cc: Tejun Heo <tj@kernel.org>
Acked-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/genalloc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/genalloc.c b/lib/genalloc.c
index 736c3b06398e..1923f1490e72 100644
--- a/lib/genalloc.c
+++ b/lib/genalloc.c
@@ -128,7 +128,6 @@ unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size)
 		chunk = list_entry(_chunk, struct gen_pool_chunk, next_chunk);
 
 		end_bit = (chunk->end_addr - chunk->start_addr) >> order;
-		end_bit -= nbits + 1;
 
 		spin_lock_irqsave(&chunk->lock, flags);
 		start_bit = bitmap_find_next_zero_area(chunk->bits, end_bit, 0,
-- 
cgit v1.2.3-55-g7522


From 3c26c9d9597f982973b9b3a32364230096ab0d78 Mon Sep 17 00:00:00 2001
From: Mike Frysinger
Date: Tue, 29 Jun 2010 15:05:17 -0700
Subject: nommu: add '[stack]' label to /proc/pid/maps output

Add support to the NOMMU /proc/pid/maps file to show which mapping is the stack
of the original thread after execve.  This is largely based on the MMU code.
Subsidiary thread stacks are not indicated.

For FDPIC, we now get:

	root:/> cat /proc/self/maps
	02064000-02067ccc rw-p 0004d000 00:01 22         /bin/busybox
	0206e000-0206f35c rw-p 00006000 00:01 295        /lib/ld-uClibc.so.0
	025f0000-025f6f0c r-xs 00000000 00:01 295        /lib/ld-uClibc.so.0
	02680000-026ba6b0 r-xs 00000000 00:01 297        /lib/libc.so.0
	02700000-0274d384 r-xs 00000000 00:01 22         /bin/busybox
	02816000-02817000 rw-p 00000000 00:00 0
	02848000-0284c0d8 rw-p 00000000 00:00 0
	02860000-02880000 rw-p 00000000 00:00 0          [stack]

The semi-downside here is that for FLAT, we get:

	root:/> cat /proc/155/maps
	029f0000-029f9000 rwxp 00000000 00:00 0          [stack]

The reason being that FLAT combines a whole lot of stuff into one map
(including the stack).  But this isn't any worse than the current output
(which is nothing), so screw it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Greg Ungerer <gerg@snapgear.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/task_nommu.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 46d4b5d72bd3..cb6306e63843 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -122,11 +122,20 @@ int task_statm(struct mm_struct *mm, int *shared, int *text,
 	return size;
 }
 
+static void pad_len_spaces(struct seq_file *m, int len)
+{
+	len = 25 + sizeof(void*) * 6 - len;
+	if (len < 1)
+		len = 1;
+	seq_printf(m, "%*c", len, ' ');
+}
+
 /*
  * display a single VMA to a sequenced file
  */
 static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
 {
+	struct mm_struct *mm = vma->vm_mm;
 	unsigned long ino = 0;
 	struct file *file;
 	dev_t dev = 0;
@@ -155,11 +164,14 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
 		   MAJOR(dev), MINOR(dev), ino, &len);
 
 	if (file) {
-		len = 25 + sizeof(void *) * 6 - len;
-		if (len < 1)
-			len = 1;
-		seq_printf(m, "%*c", len, ' ');
+		pad_len_spaces(m, len);
 		seq_path(m, &file->f_path, "");
+	} else if (mm) {
+		if (vma->vm_start <= mm->start_stack &&
+			vma->vm_end >= mm->start_stack) {
+			pad_len_spaces(m, len);
+			seq_puts(m, "[stack]");
+		}
 	}
 
 	seq_putc(m, '\n');
-- 
cgit v1.2.3-55-g7522


From 4d845ebf4cf9e985b1704b1f08b37f744b4ede13 Mon Sep 17 00:00:00 2001
From: KAMEZAWA Hiroyuki
Date: Tue, 29 Jun 2010 15:05:18 -0700
Subject: memcg: fix wake up in oom wait queue

OOM-waitqueue should be waken up when oom_disable is canceled.  This is a
fix for 3c11ecf448eff8f1 ("memcg: oom kill disable and oom status").

How to test:
 Create a cgroup A...
 1. set memory.limit and memory.memsw.limit to be small value
 2. echo 1 > /cgroup/A/memory.oom_control, this disables oom-kill.
 3. run a program which must cause OOM.

A program executed in 3 will sleep by oom_waiqueue in memcg.  Then, how to
wake it up is problem.

 1. echo 0 > /cgroup/A/memory.oom_control (enable OOM-killer)
 2. echo big mem > /cgroup/A/memory.memsw.limit_in_bytes(allow more swap)

etc..

Without the patch, a task in slept can not be waken up.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/memcontrol.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index c6ece0a57595..20a8193a7af8 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1370,7 +1370,7 @@ static void memcg_wakeup_oom(struct mem_cgroup *mem)
 
 static void memcg_oom_recover(struct mem_cgroup *mem)
 {
-	if (mem->oom_kill_disable && atomic_read(&mem->oom_lock))
+	if (atomic_read(&mem->oom_lock))
 		memcg_wakeup_oom(mem);
 }
 
@@ -3781,6 +3781,8 @@ static int mem_cgroup_oom_control_write(struct cgroup *cgrp,
 		return -EINVAL;
 	}
 	mem->oom_kill_disable = val;
+	if (!val)
+		memcg_oom_recover(mem);
 	cgroup_unlock();
 	return 0;
 }
-- 
cgit v1.2.3-55-g7522


From 500ebb82b50194f97a53d17a152cfb734ced9f21 Mon Sep 17 00:00:00 2001
From: Andres Salomon
Date: Tue, 29 Jun 2010 15:05:19 -0700
Subject: gxfb: fix incorrect __init annotation

WARNING: vmlinux.o(.data+0x195d8): Section mismatch in reference from the
variable gxfb_driver to the function .init.text:gxfb_probe() The variable
gxfb_driver references the function __init gxfb_probe()

This changes gxfb_probe and friends to use __devinit, and also adds
__devexit to gxfb_remove.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/geode/gxfb_core.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c
index 76e7dac6f259..70b1d9d51c96 100644
--- a/drivers/video/geode/gxfb_core.c
+++ b/drivers/video/geode/gxfb_core.c
@@ -40,7 +40,7 @@ static int vram;
 static int vt_switch;
 
 /* Modes relevant to the GX (taken from modedb.c) */
-static struct fb_videomode gx_modedb[] __initdata = {
+static struct fb_videomode gx_modedb[] __devinitdata = {
 	/* 640x480-60 VESA */
 	{ NULL, 60, 640, 480, 39682,  48, 16, 33, 10, 96, 2,
 	  0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
@@ -110,14 +110,15 @@ static struct fb_videomode gx_modedb[] __initdata = {
 #ifdef CONFIG_OLPC
 #include <asm/olpc.h>
 
-static struct fb_videomode gx_dcon_modedb[] __initdata = {
+static struct fb_videomode gx_dcon_modedb[] __devinitdata = {
 	/* The only mode the DCON has is 1200x900 */
 	{ NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3,
 	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 	  FB_VMODE_NONINTERLACED, 0 }
 };
 
-static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size)
+static void __devinit get_modedb(struct fb_videomode **modedb,
+		unsigned int *size)
 {
 	if (olpc_has_dcon()) {
 		*modedb = (struct fb_videomode *) gx_dcon_modedb;
@@ -129,7 +130,8 @@ static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size)
 }
 
 #else
-static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size)
+static void __devinit get_modedb(struct fb_videomode **modedb,
+		unsigned int *size)
 {
 	*modedb = (struct fb_videomode *) gx_modedb;
 	*size = ARRAY_SIZE(gx_modedb);
@@ -226,7 +228,8 @@ static int gxfb_blank(int blank_mode, struct fb_info *info)
 	return gx_blank_display(info, blank_mode);
 }
 
-static int __init gxfb_map_video_memory(struct fb_info *info, struct pci_dev *dev)
+static int __devinit gxfb_map_video_memory(struct fb_info *info,
+		struct pci_dev *dev)
 {
 	struct gxfb_par *par = info->par;
 	int ret;
@@ -290,7 +293,7 @@ static struct fb_ops gxfb_ops = {
 	.fb_imageblit	= cfb_imageblit,
 };
 
-static struct fb_info * __init gxfb_init_fbinfo(struct device *dev)
+static struct fb_info *__devinit gxfb_init_fbinfo(struct device *dev)
 {
 	struct gxfb_par *par;
 	struct fb_info *info;
@@ -371,7 +374,8 @@ static int gxfb_resume(struct pci_dev *pdev)
 }
 #endif
 
-static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+static int __devinit gxfb_probe(struct pci_dev *pdev,
+		const struct pci_device_id *id)
 {
 	struct gxfb_par *par;
 	struct fb_info *info;
@@ -451,7 +455,7 @@ static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *i
 	return ret;
 }
 
-static void gxfb_remove(struct pci_dev *pdev)
+static void __devexit gxfb_remove(struct pci_dev *pdev)
 {
 	struct fb_info *info = pci_get_drvdata(pdev);
 	struct gxfb_par *par = info->par;
-- 
cgit v1.2.3-55-g7522


From 12c46b336540b483df10d794bdee5d2f1aa8e33a Mon Sep 17 00:00:00 2001
From: Andres Salomon
Date: Tue, 29 Jun 2010 15:05:20 -0700
Subject: lxfb: fix incorrect __init annotation

WARNING: vmlinux.o(.data+0x196e8): Section mismatch in reference from the
variable lxfb_driver to the function .init.text:lxfb_probe() The variable
lxfb_driver references the function __init lxfb_probe()

This changes lxfb_probe and friends to use __devinit, and also adds
__devexit to lxfb_remove.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/geode/lxfb_core.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/video/geode/lxfb_core.c b/drivers/video/geode/lxfb_core.c
index 1a18da86d3fa..39bdbedf43b4 100644
--- a/drivers/video/geode/lxfb_core.c
+++ b/drivers/video/geode/lxfb_core.c
@@ -35,7 +35,7 @@ static int vt_switch;
  * we try to make it something sane - 640x480-60 is sane
  */
 
-static struct fb_videomode geode_modedb[] __initdata = {
+static struct fb_videomode geode_modedb[] __devinitdata = {
 	/* 640x480-60 */
 	{ NULL, 60, 640, 480, 39682, 48, 8, 25, 2, 88, 2,
 	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
@@ -219,14 +219,15 @@ static struct fb_videomode geode_modedb[] __initdata = {
 #ifdef CONFIG_OLPC
 #include <asm/olpc.h>
 
-static struct fb_videomode olpc_dcon_modedb[] __initdata = {
+static struct fb_videomode olpc_dcon_modedb[] __devinitdata = {
 	/* The only mode the DCON has is 1200x900 */
 	{ NULL, 50, 1200, 900, 17460, 24, 8, 4, 5, 8, 3,
 	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 	  FB_VMODE_NONINTERLACED, 0 }
 };
 
-static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size)
+static void __devinit get_modedb(struct fb_videomode **modedb,
+		unsigned int *size)
 {
 	if (olpc_has_dcon()) {
 		*modedb = (struct fb_videomode *) olpc_dcon_modedb;
@@ -238,7 +239,8 @@ static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size)
 }
 
 #else
-static void __init get_modedb(struct fb_videomode **modedb, unsigned int *size)
+static void __devinit get_modedb(struct fb_videomode **modedb,
+		unsigned int *size)
 {
 	*modedb = (struct fb_videomode *) geode_modedb;
 	*size = ARRAY_SIZE(geode_modedb);
@@ -334,7 +336,7 @@ static int lxfb_blank(int blank_mode, struct fb_info *info)
 }
 
 
-static int __init lxfb_map_video_memory(struct fb_info *info,
+static int __devinit lxfb_map_video_memory(struct fb_info *info,
 					struct pci_dev *dev)
 {
 	struct lxfb_par *par = info->par;
@@ -412,7 +414,7 @@ static struct fb_ops lxfb_ops = {
 	.fb_imageblit	= cfb_imageblit,
 };
 
-static struct fb_info * __init lxfb_init_fbinfo(struct device *dev)
+static struct fb_info * __devinit lxfb_init_fbinfo(struct device *dev)
 {
 	struct lxfb_par *par;
 	struct fb_info *info;
@@ -496,7 +498,7 @@ static int lxfb_resume(struct pci_dev *pdev)
 #define lxfb_resume NULL
 #endif
 
-static int __init lxfb_probe(struct pci_dev *pdev,
+static int __devinit lxfb_probe(struct pci_dev *pdev,
 			     const struct pci_device_id *id)
 {
 	struct lxfb_par *par;
@@ -588,7 +590,7 @@ err:
 	return ret;
 }
 
-static void lxfb_remove(struct pci_dev *pdev)
+static void __devexit lxfb_remove(struct pci_dev *pdev)
 {
 	struct fb_info *info = pci_get_drvdata(pdev);
 	struct lxfb_par *par = info->par;
-- 
cgit v1.2.3-55-g7522


From 2952095c6b2eefd068dda0dee6317cf95155a304 Mon Sep 17 00:00:00 2001
From: Mike Frysinger
Date: Tue, 29 Jun 2010 15:05:21 -0700
Subject: flat: tweak default stack alignment

The recent commit 1f0ce8b3dd667dca7 ("mm: Move ARCH_SLAB_MINALIGN and
ARCH_KMALLOC_MINALIGN to <linux/slab_def.h>") which moved the
ARCH_SLAB_MINALIGN default into the global header inadvertently broke FLAT
for a bunch of systems.  Blackfin systems now fail on any FLAT exec with:
Unable to read code+data+bss, errno 14 When your /init is a FLAT binary,
obviously this can be annoying ;).

This stems from the alignment usage in the FLAT loader.  The behavior
before was that FLAT would default to ARCH_SLAB_MINALIGN only if it was
defined, and this was only defined by arches when they wanted a larger
alignment value.  Otherwise it'd default to pointer alignment.  Arguably,
this is kind of hokey that the FLAT is semi-abusing defines it shouldn't.

So let's merge the two alignment requirements so the floor is never 0.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cc: David McCullough <davidm@snapgear.com>
Cc: Greg Ungerer <gerg@uclinux.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: David Howells <dhowells@redhat.com>
Cc: David Woodhouse <David.Woodhouse@intel.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/binfmt_flat.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index b6ab27ccf214..811384bec8de 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -68,11 +68,7 @@
  * Here we can be a bit looser than the data sections since this
  * needs to only meet arch ABI requirements.
  */
-#ifdef ARCH_SLAB_MINALIGN
-#define FLAT_STACK_ALIGN	(ARCH_SLAB_MINALIGN)
-#else
-#define FLAT_STACK_ALIGN	(sizeof(void *))
-#endif
+#define FLAT_STACK_ALIGN	max_t(unsigned long, sizeof(void *), ARCH_SLAB_MINALIGN)
 
 #define RELOC_FAILED 0xff00ff01		/* Relocation incorrect somewhere */
 #define UNLOADED_LIB 0x7ff000ff		/* Placeholder for unused library */
-- 
cgit v1.2.3-55-g7522


From 9c695203a7ddbe49dba5f22f4c941d24f47475df Mon Sep 17 00:00:00 2001
From: Mikael Pettersson
Date: Tue, 29 Jun 2010 15:05:25 -0700
Subject: compiler-gcc.h: gcc-4.5 needs noclone and noinline on __naked
 functions

A __naked function is defined in C but with a body completely implemented
by asm(), including any prologue and epilogue.  These asm() bodies expect
standard calling conventions for parameter passing.  Older GCCs implement
that correctly, but 4.[56] currently do not, see GCC PR44290.  In the
Linux kernel this breaks ARM, causing most arch/arm/mm/copypage-*.c
modules to get miscompiled, resulting in kernel crashes during bootup.

Part of the kernel fix is to augment the __naked function attribute to
also imply noinline and noclone.  This patch implements that, and has been
verified to fix boot failures with gcc-4.5 compiled 2.6.34 and 2.6.35-rc1
kernels.  The patch is a no-op with older GCCs.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/compiler-gcc.h  | 10 +++++++++-
 include/linux/compiler-gcc4.h |  4 ++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 73dcf804bc94..0da5b187f124 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -58,8 +58,12 @@
  * naked functions because then mcount is called without stack and frame pointer
  * being set up and there is no chance to restore the lr register to the value
  * before mcount was called.
+ *
+ * The asm() bodies of naked functions often depend on standard calling conventions,
+ * therefore they must be noinline and noclone.  GCC 4.[56] currently fail to enforce
+ * this, so we must do so ourselves.  See GCC PR44290.
  */
-#define __naked				__attribute__((naked)) notrace
+#define __naked				__attribute__((naked)) noinline __noclone notrace
 
 #define __noreturn			__attribute__((noreturn))
 
@@ -85,3 +89,7 @@
 #define _gcc_header(x) __gcc_header(linux/compiler-gcc##x.h)
 #define gcc_header(x) _gcc_header(x)
 #include gcc_header(__GNUC__)
+
+#if !defined(__noclone)
+#define __noclone	/* not needed */
+#endif
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index 94dea3ffbfa1..fcfa5b9a4317 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -48,6 +48,10 @@
  * unreleased.  Really, we need to have autoconf for the kernel.
  */
 #define unreachable() __builtin_unreachable()
+
+/* Mark a function definition as prohibited from being cloned. */
+#define __noclone	__attribute__((__noclone__))
+
 #endif
 
 #endif
-- 
cgit v1.2.3-55-g7522


From 482ce512c543f3b30ab881702fa997e71252e604 Mon Sep 17 00:00:00 2001
From: Kukjin Kim
Date: Tue, 29 Jun 2010 15:05:26 -0700
Subject: MAINTAINERS: update files and add maintainer for SAMSUNG ARM
 ARCHITECTURES

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 MAINTAINERS | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 6c73b3bc7f34..ff5a63cb77e4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -896,11 +896,13 @@ S:	Maintained
 
 ARM/SAMSUNG ARM ARCHITECTURES
 M:	Ben Dooks <ben-linux@fluff.org>
+M:	Kukjin Kim <kgene.kim@samsung.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 W:	http://www.fluff.org/ben/linux/
 S:	Maintained
-F:	arch/arm/plat-s3c/
+F:	arch/arm/plat-samsung/
 F:	arch/arm/plat-s3c24xx/
+F:	arch/arm/plat-s5p/
 
 ARM/S3C2410 ARM ARCHITECTURE
 M:	Ben Dooks <ben-linux@fluff.org>
-- 
cgit v1.2.3-55-g7522


From e05bd3367bd3d88715b53766f95bb3a8ec7ab59e Mon Sep 17 00:00:00 2001
From: Pavan Naregundi
Date: Tue, 29 Jun 2010 15:05:28 -0700
Subject: kexec: fix Oops in crash_shrink_memory()

When crashkernel is not enabled, "echo 0 > /sys/kernel/kexec_crash_size"
OOPSes the kernel in crash_shrink_memory.  This happens when
crash_shrink_memory tries to release the 'crashk_res' resource which are
not reserved.  Also value of "/sys/kernel/kexec_crash_size" shows as 1,
which should be 0.

This patch fixes the OOPS in crash_shrink_memory and shows
"/sys/kernel/kexec_crash_size" as 0 when crash kernel memory is not
reserved.

Signed-off-by: Pavan Naregundi <pavan@linux.vnet.ibm.com>
Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/kexec.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 474a84715eac..131b1703936f 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1089,9 +1089,10 @@ void crash_kexec(struct pt_regs *regs)
 
 size_t crash_get_memory_size(void)
 {
-	size_t size;
+	size_t size = 0;
 	mutex_lock(&kexec_mutex);
-	size = crashk_res.end - crashk_res.start + 1;
+	if (crashk_res.end != crashk_res.start)
+		size = crashk_res.end - crashk_res.start + 1;
 	mutex_unlock(&kexec_mutex);
 	return size;
 }
@@ -1134,7 +1135,7 @@ int crash_shrink_memory(unsigned long new_size)
 
 	free_reserved_phys_range(end, crashk_res.end);
 
-	if (start == end)
+	if ((start == end) && (crashk_res.parent != NULL))
 		release_resource(&crashk_res);
 	crashk_res.end = end - 1;
 
-- 
cgit v1.2.3-55-g7522


From 56480287f9776adc5b1a7a335ef62a9b9879ad7f Mon Sep 17 00:00:00 2001
From: Matthew Garrett
Date: Tue, 29 Jun 2010 15:05:29 -0700
Subject: ipmi: make sure drivers were registered before unregistering them

The ipmi code will never register a PCI or Open Firmware driver if a
hardcoded device is provided by the user by providing device addresses via
the module parameters.  This can cause us to attempt to unregister a
driver that was never registered, resulting in an oops.  Keep track of
registration in order to avoid this.

Fixes a post-2.6.34 regression.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/char/ipmi/ipmi_si_intf.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 35603dd4e6c5..311f85b67cc1 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -302,6 +302,12 @@ struct smi_info {
 
 static int force_kipmid[SI_MAX_PARMS];
 static int num_force_kipmid;
+#ifdef CONFIG_PCI
+static int pci_registered;
+#endif
+#ifdef CONFIG_PPC_OF
+static int of_registered;
+#endif
 
 static unsigned int kipmid_max_busy_us[SI_MAX_PARMS];
 static int num_max_busy_us;
@@ -3314,6 +3320,8 @@ static __devinit int init_ipmi_si(void)
 	rv = pci_register_driver(&ipmi_pci_driver);
 	if (rv)
 		printk(KERN_ERR PFX "Unable to register PCI driver: %d\n", rv);
+	else
+		pci_registered = 1;
 #endif
 
 #ifdef CONFIG_ACPI
@@ -3330,6 +3338,7 @@ static __devinit int init_ipmi_si(void)
 
 #ifdef CONFIG_PPC_OF
 	of_register_platform_driver(&ipmi_of_platform_driver);
+	of_registered = 1;
 #endif
 
 	/* We prefer devices with interrupts, but in the case of a machine
@@ -3383,11 +3392,13 @@ static __devinit int init_ipmi_si(void)
 	if (unload_when_empty && list_empty(&smi_infos)) {
 		mutex_unlock(&smi_infos_lock);
 #ifdef CONFIG_PCI
-		pci_unregister_driver(&ipmi_pci_driver);
+		if (pci_registered)
+			pci_unregister_driver(&ipmi_pci_driver);
 #endif
 
 #ifdef CONFIG_PPC_OF
-		of_unregister_platform_driver(&ipmi_of_platform_driver);
+		if (of_registered)
+			of_unregister_platform_driver(&ipmi_of_platform_driver);
 #endif
 		driver_unregister(&ipmi_driver.driver);
 		printk(KERN_WARNING PFX
@@ -3478,14 +3489,16 @@ static __exit void cleanup_ipmi_si(void)
 		return;
 
 #ifdef CONFIG_PCI
-	pci_unregister_driver(&ipmi_pci_driver);
+	if (pci_registered)
+		pci_unregister_driver(&ipmi_pci_driver);
 #endif
 #ifdef CONFIG_ACPI
 	pnp_unregister_driver(&ipmi_pnp_driver);
 #endif
 
 #ifdef CONFIG_PPC_OF
-	of_unregister_platform_driver(&ipmi_of_platform_driver);
+	if (of_registered)
+		of_unregister_platform_driver(&ipmi_of_platform_driver);
 #endif
 
 	mutex_lock(&smi_infos_lock);
-- 
cgit v1.2.3-55-g7522


From 5c0c165490e763eddcbb0b6c8c41ab5cc11ddea0 Mon Sep 17 00:00:00 2001
From: Lee Schermerhorn
Date: Tue, 29 Jun 2010 15:05:30 -0700
Subject: mempolicy: fix dangling reference to tmpfs superblock mpol

My patch to "Factor out duplicate put/frees in mpol_shared_policy_init()
to a common return path"; and Dan Carpenter's fix thereto both left a
dangling reference to the incoming tmpfs superblock mempolicy structure.
A similar leak was introduced earlier when the nodemask was moved offstack
to the scratch area despite the note in the comment block regarding the
incoming ref.

Move the remaining 'put of the incoming "mpol" to the common exit path to
drop the reference.

Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com>
Acked-by: Dan Carpenter <error27@gmail.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/mempolicy.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 5d6fb339de03..5bc0a96beb51 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2094,7 +2094,7 @@ void mpol_shared_policy_init(struct shared_policy *sp, struct mempolicy *mpol)
 		NODEMASK_SCRATCH(scratch);
 
 		if (!scratch)
-			return;
+			goto put_mpol;
 		/* contextualize the tmpfs mount point mempolicy */
 		new = mpol_new(mpol->mode, mpol->flags, &mpol->w.user_nodemask);
 		if (IS_ERR(new))
@@ -2103,19 +2103,20 @@ void mpol_shared_policy_init(struct shared_policy *sp, struct mempolicy *mpol)
 		task_lock(current);
 		ret = mpol_set_nodemask(new, &mpol->w.user_nodemask, scratch);
 		task_unlock(current);
-		mpol_put(mpol);	/* drop our ref on sb mpol */
 		if (ret)
-			goto put_free;
+			goto put_new;
 
 		/* Create pseudo-vma that contains just the policy */
 		memset(&pvma, 0, sizeof(struct vm_area_struct));
 		pvma.vm_end = TASK_SIZE;	/* policy covers entire file */
 		mpol_set_shared_policy(sp, &pvma, new); /* adds ref */
 
-put_free:
+put_new:
 		mpol_put(new);			/* drop initial ref */
 free_scratch:
 		NODEMASK_SCRATCH_FREE(scratch);
+put_mpol:
+		mpol_put(mpol);	/* drop our incoming ref on sb mpol */
 	}
 }
 
-- 
cgit v1.2.3-55-g7522


From 8d1f66dc9b4f80a1441bc1c33efa98aca99e8813 Mon Sep 17 00:00:00 2001
From: Martin Wilck
Date: Tue, 29 Jun 2010 15:05:31 -0700
Subject: ipmi: set schedule_timeout_wait() value back to one

Fix a regression introduced by ae74e823cb7d ("ipmi: add parameter to limit
CPU usage in kipmid").

Some systems were seeing CPU usage go up dramatically with the recent
changes to try to reduce timer usage in the IPMI driver.  This was traced
down to schedule_timeout_interruptible(1) being changed to
schedule_timeout_interruptbile(0).  Revert that part of the change.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16147

Reported-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Tested-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Cc: <stable@kernel.org>		[2.6.34.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/char/ipmi/ipmi_si_intf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 311f85b67cc1..094bdc355b1f 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -1024,7 +1024,7 @@ static int ipmi_thread(void *data)
 		else if (smi_result == SI_SM_IDLE)
 			schedule_timeout_interruptible(100);
 		else
-			schedule_timeout_interruptible(0);
+			schedule_timeout_interruptible(1);
 	}
 	return 0;
 }
-- 
cgit v1.2.3-55-g7522


From 97c29e747394b4b1d6d5bf14a9d5051073b23d5b Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu
Date: Tue, 29 Jun 2010 15:05:32 -0700
Subject: MAINTAINERS: Masami Hiramatsu has moved

Masami Hiramatsu moved back to Hitachi Japan and changed his email
address.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index ff5a63cb77e4..ab06c64953da 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3382,7 +3382,7 @@ KPROBES
 M:	Ananth N Mavinakayanahalli <ananth@in.ibm.com>
 M:	Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
 M:	"David S. Miller" <davem@davemloft.net>
-M:	Masami Hiramatsu <mhiramat@redhat.com>
+M:	Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
 S:	Maintained
 F:	Documentation/kprobes.txt
 F:	include/linux/kprobes.h
-- 
cgit v1.2.3-55-g7522


From a02875a67d745322801bafb5fa2c5e4e62c3ceab Mon Sep 17 00:00:00 2001
From: Nicolas Ferre
Date: Tue, 29 Jun 2010 15:05:33 -0700
Subject: MAINTAINERS: some Atmel drivers change maintainer

I take over the maintenance of SPI, USART, Ethernet and USB gadget
drivers.  Those drivers are found in Atmel microcontrollers, both
AT32/AVR32 and AT91/ARM.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: Andrew Victor <avictor.za@gmail.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 MAINTAINERS | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index ab06c64953da..7157311eeb30 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1150,7 +1150,7 @@ F:	drivers/mmc/host/atmel-mci.c
 F:	drivers/mmc/host/atmel-mci-regs.h
 
 ATMEL AT91 / AT32 SERIAL DRIVER
-M:	Haavard Skinnemoen <hskinnemoen@atmel.com>
+M:	Nicolas Ferre <nicolas.ferre@atmel.com>
 S:	Supported
 F:	drivers/serial/atmel_serial.c
 
@@ -1162,18 +1162,18 @@ F:	drivers/video/atmel_lcdfb.c
 F:	include/video/atmel_lcdc.h
 
 ATMEL MACB ETHERNET DRIVER
-M:	Haavard Skinnemoen <hskinnemoen@atmel.com>
+M:	Nicolas Ferre <nicolas.ferre@atmel.com>
 S:	Supported
 F:	drivers/net/macb.*
 
 ATMEL SPI DRIVER
-M:	Haavard Skinnemoen <hskinnemoen@atmel.com>
+M:	Nicolas Ferre <nicolas.ferre@atmel.com>
 S:	Supported
 F:	drivers/spi/atmel_spi.*
 
 ATMEL USBA UDC DRIVER
-M:	Haavard Skinnemoen <hskinnemoen@atmel.com>
-L:	kernel@avr32linux.org
+M:	Nicolas Ferre <nicolas.ferre@atmel.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 W:	http://avr32linux.org/twiki/bin/view/Main/AtmelUsbDeviceDriver
 S:	Supported
 F:	drivers/usb/gadget/atmel_usba_udc.*
-- 
cgit v1.2.3-55-g7522


From 96fc3a45ea073136566f3c2676cad52f8b39a7df Mon Sep 17 00:00:00 2001
From: Joakim Tjernlund
Date: Tue, 29 Jun 2010 15:05:34 -0700
Subject: rtc: fix ds1388 time corruption

The ds1307 driver misreads the ds1388 registers when checking for 12 or 24
hour mode.  Instead of checking the hour register it reads the minute
register.  Therefore the driver thinks minutes >= 40 has the 12HR bit set
and resets the minute register by zeroing the high bits.  This results in
minutes are reset to 0-9, jumping back in time 40 or 50 minutes.  The time
jump is also written back to the RTC.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-ds1307.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index de033b7ac21f..d827ce570a8c 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -777,7 +777,7 @@ static int __devinit ds1307_probe(struct i2c_client *client,
 
 read_rtc:
 	/* read RTC registers */
-	tmp = ds1307->read_block_data(ds1307->client, 0, 8, buf);
+	tmp = ds1307->read_block_data(ds1307->client, ds1307->offset, 8, buf);
 	if (tmp != 8) {
 		pr_debug("read error %d\n", tmp);
 		err = -EIO;
@@ -862,7 +862,7 @@ read_rtc:
 		if (ds1307->regs[DS1307_REG_HOUR] & DS1307_BIT_PM)
 			tmp += 12;
 		i2c_smbus_write_byte_data(client,
-				DS1307_REG_HOUR,
+				ds1307->offset + DS1307_REG_HOUR,
 				bin2bcd(tmp));
 	}
 
-- 
cgit v1.2.3-55-g7522


From 926b1e2ca35ccb3cbe0ea9b322c5330869b95046 Mon Sep 17 00:00:00 2001
From: David Brownell
Date: Tue, 29 Jun 2010 15:05:37 -0700
Subject: drivers/gpio is platform-neutral

Update Kconfig and Makefile in drivers/gpio to discourage inappropriate
addition of platform-specific code.

[akpm@linux-foundation.org: fix tpyo]
Signed-by: David Brownell <dbrownell@users.sourceforge.net>

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/gpio/Kconfig  | 2 +-
 drivers/gpio/Makefile | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 724038dab4ca..7face915b963 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -1,5 +1,5 @@
 #
-# GPIO infrastructure and expanders
+# platform-neutral GPIO infrastructure and expanders
 #
 
 config ARCH_WANT_OPTIONAL_GPIOLIB
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 51c3cdd41b5a..e53dcff49b4f 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -1,4 +1,8 @@
-# gpio support: dedicated expander chips, etc
+# generic gpio support: dedicated expander chips, etc
+#
+# NOTE: platform-specific GPIO drivers don't belong in the
+# drivers/gpio directory; put them with other platform setup
+# code, IRQ controllers, board init, etc.
 
 ccflags-$(CONFIG_DEBUG_GPIO)	+= -DDEBUG
 
-- 
cgit v1.2.3-55-g7522


From 46c23d7f520e315dde86881b38ba92ebdf34ced5 Mon Sep 17 00:00:00 2001
From: Lubomir Rintel
Date: Tue, 29 Jun 2010 15:05:38 -0700
Subject: sysvfs: fix NULL deref. when allocating new inode

A call to sysv_write_inode() in sysv_new_inode() to its new interface that
replaced wait flag with writeback structure.  This was broken by
a9185b41a4f84971b930c519f0c63bd450c4810d ("pass writeback_control to
->write_inode").

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@kernel.org>		[2.6.34.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/sysv/ialloc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c
index bbd69bdb0fa8..fcc498ec9b33 100644
--- a/fs/sysv/ialloc.c
+++ b/fs/sysv/ialloc.c
@@ -25,6 +25,7 @@
 #include <linux/stat.h>
 #include <linux/string.h>
 #include <linux/buffer_head.h>
+#include <linux/writeback.h>
 #include "sysv.h"
 
 /* We don't trust the value of
@@ -139,6 +140,9 @@ struct inode * sysv_new_inode(const struct inode * dir, mode_t mode)
 	struct inode *inode;
 	sysv_ino_t ino;
 	unsigned count;
+	struct writeback_control wbc = {
+		.sync_mode = WB_SYNC_NONE
+	};
 
 	inode = new_inode(sb);
 	if (!inode)
@@ -168,7 +172,7 @@ struct inode * sysv_new_inode(const struct inode * dir, mode_t mode)
 	insert_inode_hash(inode);
 	mark_inode_dirty(inode);
 
-	sysv_write_inode(inode, 0);	/* ensure inode not allocated again */
+	sysv_write_inode(inode, &wbc);	/* ensure inode not allocated again */
 	mark_inode_dirty(inode);	/* cleared by sysv_write_inode() */
 	/* That's it. */
 	unlock_super(sb);
-- 
cgit v1.2.3-55-g7522


From 032093bd44ac935ed3792ef592f94497d491cd8b Mon Sep 17 00:00:00 2001
From: Wan ZongShun
Date: Tue, 29 Jun 2010 15:05:39 -0700
Subject: drivers/video/nuc900fb.c: fix lcd build error

Fix a nuc900 lcd build error.

Since the 'nuc900_driver_clksrc_div()' API cannot be merged into mainline
successfully, I removed this clock source selection hook in this driver.
This means nuc900 lcd driver has to select default clock source from the
external crystal now.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Cc: Qiang Wang <rurality.wq@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/nuc900fb.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/nuc900fb.c b/drivers/video/nuc900fb.c
index d4cde79ea15e..81687ed26ba9 100644
--- a/drivers/video/nuc900fb.c
+++ b/drivers/video/nuc900fb.c
@@ -596,8 +596,6 @@ static int __devinit nuc900fb_probe(struct platform_device *pdev)
 		goto release_regs;
 	}
 
-	nuc900_driver_clksrc_div(&pdev->dev, "ext", 0x2);
-
 	fbi->clk = clk_get(&pdev->dev, NULL);
 	if (!fbi->clk || IS_ERR(fbi->clk)) {
 		printk(KERN_ERR "nuc900-lcd:failed to get lcd clock source\n");
-- 
cgit v1.2.3-55-g7522


From fb967ecc584c20c74a007de749ca597068b0fcac Mon Sep 17 00:00:00 2001
From: Liu Aleaxander
Date: Tue, 29 Jun 2010 15:05:40 -0700
Subject: um: os-linux/mem.c needs sys/stat.h

The os-linux/mem.c file calls fchmod function, which is declared in sys/stat.h
header file, so include it.  Fixes build breakage under FC13.

Signed-off-by: Liu Aleaxander <Aleaxander@gmail.com>
Acked-by: Boaz Harrosh <bharrosh@panasas.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/um/os-Linux/mem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/um/os-Linux/mem.c b/arch/um/os-Linux/mem.c
index 93a11d7edfa0..e696144d2be3 100644
--- a/arch/um/os-Linux/mem.c
+++ b/arch/um/os-Linux/mem.c
@@ -10,6 +10,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <string.h>
+#include <sys/stat.h>
 #include <sys/mman.h>
 #include <sys/param.h>
 #include "init.h"
-- 
cgit v1.2.3-55-g7522


From f4985dc714d7ab1920c5aa502b7f4073fa1b4177 Mon Sep 17 00:00:00 2001
From: Andrew Morton
Date: Tue, 29 Jun 2010 15:05:42 -0700
Subject: fs/fcntl.c:kill_fasync_rcu() fa_lock must be IRQ-safe

Fix a lockdep-splat-causing regression introduced by commit 989a2979205d
("fasync: RCU and fine grained locking").

kill_fasync() can be called from both process and hard-irq context, so
fa_lock must be taken with IRQs disabled.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=16230

Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Reported-by: Dominik Brodowski <linux@dominikbrodowski.net>
Tested-by: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Maciej Rutecki <maciej.rutecki@gmail.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/fcntl.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/fcntl.c b/fs/fcntl.c
index 51e11bf5708f..9d175d623aab 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -733,12 +733,14 @@ static void kill_fasync_rcu(struct fasync_struct *fa, int sig, int band)
 {
 	while (fa) {
 		struct fown_struct *fown;
+		unsigned long flags;
+
 		if (fa->magic != FASYNC_MAGIC) {
 			printk(KERN_ERR "kill_fasync: bad magic number in "
 			       "fasync_struct!\n");
 			return;
 		}
-		spin_lock(&fa->fa_lock);
+		spin_lock_irqsave(&fa->fa_lock, flags);
 		if (fa->fa_file) {
 			fown = &fa->fa_file->f_owner;
 			/* Don't send SIGURG to processes which have not set a
@@ -747,7 +749,7 @@ static void kill_fasync_rcu(struct fasync_struct *fa, int sig, int band)
 			if (!(sig == SIGURG && fown->signum == 0))
 				send_sigio(fown, fa->fa_fd, band);
 		}
-		spin_unlock(&fa->fa_lock);
+		spin_unlock_irqrestore(&fa->fa_lock, flags);
 		fa = rcu_dereference(fa->fa_next);
 	}
 }
-- 
cgit v1.2.3-55-g7522


From 9715856922bf8475f5428c29b6f4a9eebc97d391 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra
Date: Wed, 30 Jun 2010 10:37:11 +0200
Subject: init: Fix comment

Apparently "pid-1" confuses people...

Requested-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: torvalds@linux-foundation.org
Cc: randy.dunlap@oracle.com
Cc: Ilya Loginov <isloginov@gmail.com>
LKML-Reference: <1277887031.1868.82.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 init/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/init/main.c b/init/main.c
index 633442f79e90..1692df32244a 100644
--- a/init/main.c
+++ b/init/main.c
@@ -431,7 +431,7 @@ static noinline void __init_refok rest_init(void)
 
 	rcu_scheduler_starting();
 	/*
-	 * We need to spawn init first so that it obtains pid-1, however
+	 * We need to spawn init first so that it obtains pid 1, however
 	 * the init task will end up wanting to create kthreads, which, if
 	 * we schedule it before we create kthreadd, will OOPS.
 	 */
-- 
cgit v1.2.3-55-g7522


From a1e80fafc9f0742a1776a0490258cb64912411b0 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker
Date: Wed, 30 Jun 2010 15:09:06 +0200
Subject: x86: Send a SIGTRAP for user icebp traps

Before we had a generic breakpoint layer, x86 used to send a
sigtrap for any debug event that happened in userspace,
except if it was caused by lazy dr7 switches.

Currently we only send such signal for single step or breakpoint
events.

However, there are three other kind of debug exceptions:

- debug register access detected: trigger an exception if the
  next instruction touches the debug registers. We don't use
  it.
- task switch, but we don't use tss.
- icebp/int01 trap. This instruction (0xf1) is undocumented and
  generates an int 1 exception. Unlike single step through TF
  flag, it doesn't set the single step origin of the exception
  in dr6.

icebp then used to be reported in userspace using trap signals
but this have been incidentally broken with the new breakpoint
code. Reenable this. Since this is the only debug event that
doesn't set anything in dr6, this is all we have to check.

This fixes a regression in Wine where World Of Warcraft got broken
as it uses this for software protection checks purposes. And
probably other apps do.

Reported-and-tested-by: Alexandre Julliard <julliard@winehq.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Prasad <prasad@linux.vnet.ibm.com>
Cc: 2.6.33.x 2.6.34.x <stable@kernel.org>
---
 arch/x86/kernel/traps.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 142d70c74b02..725ef4d17cd5 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -526,6 +526,7 @@ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs)
 dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
 {
 	struct task_struct *tsk = current;
+	int user_icebp = 0;
 	unsigned long dr6;
 	int si_code;
 
@@ -534,6 +535,14 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
 	/* Filter out all the reserved bits which are preset to 1 */
 	dr6 &= ~DR6_RESERVED;
 
+	/*
+	 * If dr6 has no reason to give us about the origin of this trap,
+	 * then it's very likely the result of an icebp/int01 trap.
+	 * User wants a sigtrap for that.
+	 */
+	if (!dr6 && user_mode(regs))
+		user_icebp = 1;
+
 	/* Catch kmemcheck conditions first of all! */
 	if ((dr6 & DR_STEP) && kmemcheck_trap(regs))
 		return;
@@ -575,7 +584,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
 		regs->flags &= ~X86_EFLAGS_TF;
 	}
 	si_code = get_si_code(tsk->thread.debugreg6);
-	if (tsk->thread.debugreg6 & (DR_STEP | DR_TRAP_BITS))
+	if (tsk->thread.debugreg6 & (DR_STEP | DR_TRAP_BITS) || user_icebp)
 		send_sigtrap(tsk, regs, error_code, si_code);
 	preempt_conditional_cli(regs);
 
-- 
cgit v1.2.3-55-g7522


From 0a564b2645c8766a669c55bde1f1ef5b0518caec Mon Sep 17 00:00:00 2001
From: Michal Marek
Date: Wed, 30 Jun 2010 16:41:23 +0200
Subject: kbuild: Propagate LOCALVERSION= down to scripts/setlocalversion

Variables given on the make commandline are not exported to $(shell
...) commands, so run the setlocalversion script in the make rule
directly.

Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 Makefile | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/Makefile b/Makefile
index a86ac8c4798e..12ab17511308 100644
--- a/Makefile
+++ b/Makefile
@@ -884,11 +884,9 @@ $(vmlinux-dirs): prepare scripts
 	$(Q)$(MAKE) $(build)=$@
 
 # Store (new) KERNELRELASE string in include/config/kernel.release
-localversion = $(shell $(CONFIG_SHELL) \
-	       $(srctree)/scripts/setlocalversion $(srctree))
 include/config/kernel.release: include/config/auto.conf FORCE
 	$(Q)rm -f $@
-	$(Q)echo $(KERNELVERSION)$(localversion) > $@
+	$(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) scripts/setlocalversion $(srctree))" > $@
 
 
 # Things we need to do before we recursively start building the kernel
-- 
cgit v1.2.3-55-g7522


From 8cd774ad30c22b9d89823f1f05d845f4cdaba9e8 Mon Sep 17 00:00:00 2001
From: Dongdong Deng
Date: Thu, 17 Jun 2010 11:13:40 +0800
Subject: serial: cpm_uart: implement the cpm_uart_early_write() function for
 console poll

The cpm_uart_early_write() function which was used for console poll
isn't implemented in the cpm uart driver.

Implementing this function both fixes the build when CONFIG_CONSOLE_POLL
is set and allows kgdboc to work via the cpm uart.

Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com>
Reviewed-by: Bruce Ashfield <bruce.ashfield@windriver.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/serial/cpm_uart/cpm_uart_core.c | 143 ++++++++++++++++++--------------
 1 file changed, 79 insertions(+), 64 deletions(-)

diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index 9eb62a256e9a..cd6cf575902e 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -930,6 +930,83 @@ static void cpm_uart_config_port(struct uart_port *port, int flags)
 	}
 }
 
+#if defined(CONFIG_CONSOLE_POLL) || defined(CONFIG_SERIAL_CPM_CONSOLE)
+/*
+ * Write a string to the serial port
+ * Note that this is called with interrupts already disabled
+ */
+static void cpm_uart_early_write(struct uart_cpm_port *pinfo,
+		const char *string, u_int count)
+{
+	unsigned int i;
+	cbd_t __iomem *bdp, *bdbase;
+	unsigned char *cpm_outp_addr;
+
+	/* Get the address of the host memory buffer.
+	 */
+	bdp = pinfo->tx_cur;
+	bdbase = pinfo->tx_bd_base;
+
+	/*
+	 * Now, do each character.  This is not as bad as it looks
+	 * since this is a holding FIFO and not a transmitting FIFO.
+	 * We could add the complexity of filling the entire transmit
+	 * buffer, but we would just wait longer between accesses......
+	 */
+	for (i = 0; i < count; i++, string++) {
+		/* Wait for transmitter fifo to empty.
+		 * Ready indicates output is ready, and xmt is doing
+		 * that, not that it is ready for us to send.
+		 */
+		while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0)
+			;
+
+		/* Send the character out.
+		 * If the buffer address is in the CPM DPRAM, don't
+		 * convert it.
+		 */
+		cpm_outp_addr = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr),
+					pinfo);
+		*cpm_outp_addr = *string;
+
+		out_be16(&bdp->cbd_datlen, 1);
+		setbits16(&bdp->cbd_sc, BD_SC_READY);
+
+		if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP)
+			bdp = bdbase;
+		else
+			bdp++;
+
+		/* if a LF, also do CR... */
+		if (*string == 10) {
+			while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0)
+				;
+
+			cpm_outp_addr = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr),
+						pinfo);
+			*cpm_outp_addr = 13;
+
+			out_be16(&bdp->cbd_datlen, 1);
+			setbits16(&bdp->cbd_sc, BD_SC_READY);
+
+			if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP)
+				bdp = bdbase;
+			else
+				bdp++;
+		}
+	}
+
+	/*
+	 * Finally, Wait for transmitter & holding register to empty
+	 *  and restore the IER
+	 */
+	while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0)
+		;
+
+	pinfo->tx_cur = bdp;
+}
+#endif
+
 #ifdef CONFIG_CONSOLE_POLL
 /* Serial polling routines for writing and reading from the uart while
  * in an interrupt or debug context.
@@ -999,7 +1076,7 @@ static void cpm_put_poll_char(struct uart_port *port,
 	static char ch[2];
 
 	ch[0] = (char)c;
-	cpm_uart_early_write(pinfo->port.line, ch, 1);
+	cpm_uart_early_write(pinfo, ch, 1);
 }
 #endif /* CONFIG_CONSOLE_POLL */
 
@@ -1130,9 +1207,6 @@ static void cpm_uart_console_write(struct console *co, const char *s,
 				   u_int count)
 {
 	struct uart_cpm_port *pinfo = &cpm_uart_ports[co->index];
-	unsigned int i;
-	cbd_t __iomem *bdp, *bdbase;
-	unsigned char *cp;
 	unsigned long flags;
 	int nolock = oops_in_progress;
 
@@ -1142,66 +1216,7 @@ static void cpm_uart_console_write(struct console *co, const char *s,
 		spin_lock_irqsave(&pinfo->port.lock, flags);
 	}
 
-	/* Get the address of the host memory buffer.
-	 */
-	bdp = pinfo->tx_cur;
-	bdbase = pinfo->tx_bd_base;
-
-	/*
-	 * Now, do each character.  This is not as bad as it looks
-	 * since this is a holding FIFO and not a transmitting FIFO.
-	 * We could add the complexity of filling the entire transmit
-	 * buffer, but we would just wait longer between accesses......
-	 */
-	for (i = 0; i < count; i++, s++) {
-		/* Wait for transmitter fifo to empty.
-		 * Ready indicates output is ready, and xmt is doing
-		 * that, not that it is ready for us to send.
-		 */
-		while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0)
-			;
-
-		/* Send the character out.
-		 * If the buffer address is in the CPM DPRAM, don't
-		 * convert it.
-		 */
-		cp = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo);
-		*cp = *s;
-
-		out_be16(&bdp->cbd_datlen, 1);
-		setbits16(&bdp->cbd_sc, BD_SC_READY);
-
-		if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP)
-			bdp = bdbase;
-		else
-			bdp++;
-
-		/* if a LF, also do CR... */
-		if (*s == 10) {
-			while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0)
-				;
-
-			cp = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo);
-			*cp = 13;
-
-			out_be16(&bdp->cbd_datlen, 1);
-			setbits16(&bdp->cbd_sc, BD_SC_READY);
-
-			if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP)
-				bdp = bdbase;
-			else
-				bdp++;
-		}
-	}
-
-	/*
-	 * Finally, Wait for transmitter & holding register to empty
-	 *  and restore the IER
-	 */
-	while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0)
-		;
-
-	pinfo->tx_cur = bdp;
+	cpm_uart_early_write(pinfo, s, count);
 
 	if (unlikely(nolock)) {
 		local_irq_restore(flags);
-- 
cgit v1.2.3-55-g7522


From 44a0c0190b500ee6bcfc0976fe540f65dee2cd67 Mon Sep 17 00:00:00 2001
From: Jon Povey
Date: Mon, 14 Jun 2010 19:41:04 +0900
Subject: USB: g_serial: don't set low_latency flag

No longer set low_latency flag as it causes this warning backtrace:

  WARNING: at kernel/mutex.c:207 __mutex_lock_slowpath+0x6c/0x288()

Fix associated locking and wakeups.

Signed-off-by: Jon Povey <jon.povey@racelogic.co.uk>
Cc: Maulik Mankad <x0082077@ti.com>
Cc: stable <stable@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/gadget/u_serial.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
index 16bdf77f582a..a0f79df4c6c2 100644
--- a/drivers/usb/gadget/u_serial.c
+++ b/drivers/usb/gadget/u_serial.c
@@ -536,17 +536,11 @@ recycle:
 		list_move(&req->list, &port->read_pool);
 	}
 
-	/* Push from tty to ldisc; this is immediate with low_latency, and
-	 * may trigger callbacks to this driver ... so drop the spinlock.
+	/* Push from tty to ldisc; without low_latency set this is handled by
+	 * a workqueue, so we won't get callbacks and can hold port_lock
 	 */
 	if (tty && do_push) {
-		spin_unlock_irq(&port->port_lock);
 		tty_flip_buffer_push(tty);
-		wake_up_interruptible(&tty->read_wait);
-		spin_lock_irq(&port->port_lock);
-
-		/* tty may have been closed */
-		tty = port->port_tty;
 	}
 
 
@@ -784,11 +778,6 @@ static int gs_open(struct tty_struct *tty, struct file *file)
 	port->open_count = 1;
 	port->openclose = false;
 
-	/* low_latency means ldiscs work in tasklet context, without
-	 * needing a workqueue schedule ... easier to keep up.
-	 */
-	tty->low_latency = 1;
-
 	/* if connected, start the I/O stream */
 	if (port->port_usb) {
 		struct gserial	*gser = port->port_usb;
-- 
cgit v1.2.3-55-g7522


From b23097b793081358a6d943263c91bae4c955c4e3 Mon Sep 17 00:00:00 2001
From: Jon Povey
Date: Mon, 14 Jun 2010 19:42:10 +0900
Subject: USB: g_serial: fix tty cleanup on unload

Call put_tty_driver() in cleanup function, to fix Oops when trying to open
gadget serial char device after module unload.

Signed-off-by: Jon Povey <jon.povey@racelogic.co.uk>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/gadget/u_serial.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/u_serial.c b/drivers/usb/gadget/u_serial.c
index a0f79df4c6c2..3e8dcb5455e3 100644
--- a/drivers/usb/gadget/u_serial.c
+++ b/drivers/usb/gadget/u_serial.c
@@ -1184,6 +1184,7 @@ void gserial_cleanup(void)
 	n_ports = 0;
 
 	tty_unregister_driver(gs_tty_driver);
+	put_tty_driver(gs_tty_driver);
 	gs_tty_driver = NULL;
 
 	pr_debug("%s: cleaned up ttyGS* support\n", __func__);
-- 
cgit v1.2.3-55-g7522


From f588c0db39ca35f69f815dabe5682759daa25098 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz
Date: Mon, 14 Jun 2010 10:43:34 +0200
Subject: USB: gadget: g_fs: possible invalid pointer reference bug fixed

During __gfs_do_config() some invalid pointers may be left
in usb_configuration::interfaces array from previous calls
to the __gfs_do_config() for the same configuration.  This
will always happen if an user space function which has
a fewer then the last user space function registers itself.
Composite's set_config() function that a pointer after the
last interface in usb_configuration::interface is NULL
unless the array is full.

This patch makes the __gfs_do_config() make sure that if the
usb_configuration::interface is not full then a pointer
after the last interface is NULL.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/gadget/g_ffs.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c
index 4b0e4a040d6f..d1af253a9105 100644
--- a/drivers/usb/gadget/g_ffs.c
+++ b/drivers/usb/gadget/g_ffs.c
@@ -392,6 +392,17 @@ static int __gfs_do_config(struct usb_configuration *c,
 	if (unlikely(ret < 0))
 		return ret;
 
+	/* After previous do_configs there may be some invalid
+	 * pointers in c->interface array.  This happens every time
+	 * a user space function with fewer interfaces than a user
+	 * space function that was run before the new one is run.  The
+	 * compasit's set_config() assumes that if there is no more
+	 * then MAX_CONFIG_INTERFACES interfaces in a configuration
+	 * then there is a NULL pointer after the last interface in
+	 * c->interface array.  We need to make sure this is true. */
+	if (c->next_interface_id < ARRAY_SIZE(c->interface))
+		c->interface[c->next_interface_id] = NULL;
+
 	return 0;
 }
 
-- 
cgit v1.2.3-55-g7522


From 6cc30d85a5bf61248ff0e1f0e0f15fe718bae378 Mon Sep 17 00:00:00 2001
From: Sarah Sharp
Date: Thu, 10 Jun 2010 12:25:28 -0700
Subject: USB: xHCI: Fix bug in link TRB activation change.

Commit 6c12db90f19727c76990e7f4801c67a148b30111 introduced a bug for
control transfers.  The patch was supposed to change when the link TRBs at
the end of each ring segment were given to the hardware.  If a transfer
descriptor (TD) ended just before the link TRB, the code wouldn't give
back the link TRB to the hardware; instead it would be given back in
prepare_ring() just before the next TD was enqueued at the top of the
ring.

Unfortunately, the code relied on checking the chain bit of the TRB to
determine whether the TD ended just before the link TRB.  It assumed that
the ring enqueuing code would call prepare_ring() before enqueuing the
next TD.  However, control transfers are made of multiple TDs, and
prepare_ring() is only called once before enqueuing two or three TDs.

If the first or second TD of the control transfer ended just before the
link TRB, then the code in inc_enq() would not move the enqueue pointer
past the link TRB, and the link TRB would get overwritten.  This would
cause the xHCI driver to start writing to memory past the ring segment,
and eventually the system would crash or hang.

The fix is to add a flag to inc_enq() that says whether the caller will
enqueue more TDs before calling prepare_ring().  If the chain bit is
cleared (meaning this is the last TRB in a TD), and the caller will not
enqueue more TDs, then we defer giving back the link TRB.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/host/xhci-ring.c | 62 ++++++++++++++++++++++++++++++++------------
 1 file changed, 46 insertions(+), 16 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 9012098add6b..94e6934edb09 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -182,8 +182,12 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer
  * set, but other sections talk about dealing with the chain bit set.  This was
  * fixed in the 0.96 specification errata, but we have to assume that all 0.95
  * xHCI hardware can't handle the chain bit being cleared on a link TRB.
+ *
+ * @more_trbs_coming:	Will you enqueue more TRBs before calling
+ *			prepare_transfer()?
  */
-static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer)
+static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring,
+		bool consumer, bool more_trbs_coming)
 {
 	u32 chain;
 	union xhci_trb *next;
@@ -199,15 +203,28 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer
 	while (last_trb(xhci, ring, ring->enq_seg, next)) {
 		if (!consumer) {
 			if (ring != xhci->event_ring) {
-				if (chain) {
-					next->link.control |= TRB_CHAIN;
-
-					/* Give this link TRB to the hardware */
-					wmb();
-					next->link.control ^= TRB_CYCLE;
-				} else {
+				/*
+				 * If the caller doesn't plan on enqueueing more
+				 * TDs before ringing the doorbell, then we
+				 * don't want to give the link TRB to the
+				 * hardware just yet.  We'll give the link TRB
+				 * back in prepare_ring() just before we enqueue
+				 * the TD at the top of the ring.
+				 */
+				if (!chain && !more_trbs_coming)
 					break;
+
+				/* If we're not dealing with 0.95 hardware,
+				 * carry over the chain bit of the previous TRB
+				 * (which may mean the chain bit is cleared).
+				 */
+				if (!xhci_link_trb_quirk(xhci)) {
+					next->link.control &= ~TRB_CHAIN;
+					next->link.control |= chain;
 				}
+				/* Give this link TRB to the hardware */
+				wmb();
+				next->link.control ^= TRB_CYCLE;
 			}
 			/* Toggle the cycle bit after the last ring segment. */
 			if (last_trb_on_last_seg(xhci, ring, ring->enq_seg, next)) {
@@ -1707,9 +1724,12 @@ void xhci_handle_event(struct xhci_hcd *xhci)
 /*
  * Generic function for queueing a TRB on a ring.
  * The caller must have checked to make sure there's room on the ring.
+ *
+ * @more_trbs_coming:	Will you enqueue more TRBs before calling
+ *			prepare_transfer()?
  */
 static void queue_trb(struct xhci_hcd *xhci, struct xhci_ring *ring,
-		bool consumer,
+		bool consumer, bool more_trbs_coming,
 		u32 field1, u32 field2, u32 field3, u32 field4)
 {
 	struct xhci_generic_trb *trb;
@@ -1719,7 +1739,7 @@ static void queue_trb(struct xhci_hcd *xhci, struct xhci_ring *ring,
 	trb->field[1] = field2;
 	trb->field[2] = field3;
 	trb->field[3] = field4;
-	inc_enq(xhci, ring, consumer);
+	inc_enq(xhci, ring, consumer, more_trbs_coming);
 }
 
 /*
@@ -1988,6 +2008,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 	int trb_buff_len, this_sg_len, running_total;
 	bool first_trb;
 	u64 addr;
+	bool more_trbs_coming;
 
 	struct xhci_generic_trb *start_trb;
 	int start_cycle;
@@ -2073,7 +2094,11 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 		length_field = TRB_LEN(trb_buff_len) |
 			remainder |
 			TRB_INTR_TARGET(0);
-		queue_trb(xhci, ep_ring, false,
+		if (num_trbs > 1)
+			more_trbs_coming = true;
+		else
+			more_trbs_coming = false;
+		queue_trb(xhci, ep_ring, false, more_trbs_coming,
 				lower_32_bits(addr),
 				upper_32_bits(addr),
 				length_field,
@@ -2124,6 +2149,7 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 	int num_trbs;
 	struct xhci_generic_trb *start_trb;
 	bool first_trb;
+	bool more_trbs_coming;
 	int start_cycle;
 	u32 field, length_field;
 
@@ -2212,7 +2238,11 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 		length_field = TRB_LEN(trb_buff_len) |
 			remainder |
 			TRB_INTR_TARGET(0);
-		queue_trb(xhci, ep_ring, false,
+		if (num_trbs > 1)
+			more_trbs_coming = true;
+		else
+			more_trbs_coming = false;
+		queue_trb(xhci, ep_ring, false, more_trbs_coming,
 				lower_32_bits(addr),
 				upper_32_bits(addr),
 				length_field,
@@ -2291,7 +2321,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 	/* Queue setup TRB - see section 6.4.1.2.1 */
 	/* FIXME better way to translate setup_packet into two u32 fields? */
 	setup = (struct usb_ctrlrequest *) urb->setup_packet;
-	queue_trb(xhci, ep_ring, false,
+	queue_trb(xhci, ep_ring, false, true,
 			/* FIXME endianness is probably going to bite my ass here. */
 			setup->bRequestType | setup->bRequest << 8 | setup->wValue << 16,
 			setup->wIndex | setup->wLength << 16,
@@ -2307,7 +2337,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 	if (urb->transfer_buffer_length > 0) {
 		if (setup->bRequestType & USB_DIR_IN)
 			field |= TRB_DIR_IN;
-		queue_trb(xhci, ep_ring, false,
+		queue_trb(xhci, ep_ring, false, true,
 				lower_32_bits(urb->transfer_dma),
 				upper_32_bits(urb->transfer_dma),
 				length_field,
@@ -2324,7 +2354,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 		field = 0;
 	else
 		field = TRB_DIR_IN;
-	queue_trb(xhci, ep_ring, false,
+	queue_trb(xhci, ep_ring, false, false,
 			0,
 			0,
 			TRB_INTR_TARGET(0),
@@ -2361,7 +2391,7 @@ static int queue_command(struct xhci_hcd *xhci, u32 field1, u32 field2,
 					"unfailable commands failed.\n");
 		return -ENOMEM;
 	}
-	queue_trb(xhci, xhci->cmd_ring, false, field1, field2, field3,
+	queue_trb(xhci, xhci->cmd_ring, false, false, field1, field2, field3,
 			field4 | xhci->cmd_ring->cycle_state);
 	return 0;
 }
-- 
cgit v1.2.3-55-g7522


From a5797a686f4c7cbced782959509d735cfa1344b1 Mon Sep 17 00:00:00 2001
From: Nobuhiro Iwamatsu
Date: Mon, 7 Jun 2010 16:55:56 +0900
Subject: USB: r8a66597: Fix failure in change of status

In the change by 749da5f82fe33ff68dd4aa1a5e35cd9aa6246dab,
The change in the status when the USB device is connected is wrong.
Therefore, the device is not recognized.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
CC: Paul Mundt" <lethal@linux-sh.org>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/host/r8a66597-hcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index 1a2bb4ce638f..77be3c24a427 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -1065,7 +1065,7 @@ static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port)
 	else if (speed == LSMODE)
 		rh->port |= USB_PORT_STAT_LOW_SPEED;
 
-	rh->port &= USB_PORT_STAT_RESET;
+	rh->port &= ~USB_PORT_STAT_RESET;
 	rh->port |= USB_PORT_STAT_ENABLE;
 }
 
-- 
cgit v1.2.3-55-g7522


From 2bb14cbf04ded4b9e394a6ba9e4f06b82fbac8b2 Mon Sep 17 00:00:00 2001
From: Maulik Mankad
Date: Tue, 15 Jun 2010 14:40:27 +0530
Subject: usb: musb: Fix a bug by making suspend interrupt available in device
 mode

As a part of aligning the ISR code for MUSB with the specs, the
ISR code was re-written. 

See Commit 1c25fda4a09e8229800979986ef399401053b46e (usb: musb: handle 
irqs in the order dictated by programming guide)

With this the suspend interrupt came accidently under CONFIG_USB_MUSB_HDRC_HCD.

The fix brings suspend interrupt handling outside 
CONFIG_USB_MUSB_HDRC_HCD.

Signed-off-by: Maulik Mankad <x0082077@ti.com>
Cc: David Brownell <david-b@pacbell.net>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: stable <stable@kernel.org> [.34]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/musb/musb_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index fad70bc83555..56b6debaf2d9 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -642,7 +642,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 		handled = IRQ_HANDLED;
 	}
 
-
+#endif
 	if (int_usb & MUSB_INTR_SUSPEND) {
 		DBG(1, "SUSPEND (%s) devctl %02x power %02x\n",
 				otg_state_string(musb), devctl, power);
@@ -705,6 +705,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 		}
 	}
 
+#ifdef CONFIG_USB_MUSB_HDRC_HCD
 	if (int_usb & MUSB_INTR_CONNECT) {
 		struct usb_hcd *hcd = musb_to_hcd(musb);
 		void __iomem *mbase = musb->mregs;
-- 
cgit v1.2.3-55-g7522


From 7b4a036722cfab2b3922685ad473fac35a55c3fa Mon Sep 17 00:00:00 2001
From: Wolfram Sang
Date: Tue, 15 Jun 2010 12:34:22 +0200
Subject: USB: otg/ulpi: bail out on read errors

otg_read may return errnos, so bail out correctly to prevent bogus
ID-numbers.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Daniel Mack <daniel@caiaq.de>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/otg/ulpi.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/otg/ulpi.c b/drivers/usb/otg/ulpi.c
index b1b346932946..d331b222ad21 100644
--- a/drivers/usb/otg/ulpi.c
+++ b/drivers/usb/otg/ulpi.c
@@ -59,12 +59,17 @@ static int ulpi_set_flags(struct otg_transceiver *otg)
 
 static int ulpi_init(struct otg_transceiver *otg)
 {
-	int i, vid, pid;
-
-	vid = (otg_io_read(otg, ULPI_VENDOR_ID_HIGH) << 8) |
-	       otg_io_read(otg, ULPI_VENDOR_ID_LOW);
-	pid = (otg_io_read(otg, ULPI_PRODUCT_ID_HIGH) << 8) |
-	       otg_io_read(otg, ULPI_PRODUCT_ID_LOW);
+	int i, vid, pid, ret;
+	u32 ulpi_id = 0;
+
+	for (i = 0; i < 4; i++) {
+		ret = otg_io_read(otg, ULPI_PRODUCT_ID_HIGH - i);
+		if (ret < 0)
+			return ret;
+		ulpi_id = (ulpi_id << 8) | ret;
+	}
+	vid = ulpi_id & 0xffff;
+	pid = ulpi_id >> 16;
 
 	pr_info("ULPI transceiver vendor/product ID 0x%04x/0x%04x\n", vid, pid);
 
-- 
cgit v1.2.3-55-g7522


From 4c9715de52b9b6256bf1e9510917111a47b0c176 Mon Sep 17 00:00:00 2001
From: Wolfram Sang
Date: Tue, 15 Jun 2010 12:34:23 +0200
Subject: USB: ehci-mxc: bail out on transceiver problems

The old code registered the hcd even if there were no transceivers
detected, leading to oopses like this if we try to probe a non-existant
ULPI:

[    2.730000] mxc-ehci mxc-ehci.0: unable to init transceiver
[    2.740000] timeout polling for ULPI device
[    2.740000] timeout polling for ULPI device
[    2.750000] mxc-ehci mxc-ehci.0: unable to enable vbus on transceiver
[    2.750000] mxc-ehci mxc-ehci.0: Freescale On-Chip EHCI Host Controller
[    2.760000] mxc-ehci mxc-ehci.0: new USB bus registered, assigned bus number 2
[    2.770000] Unhandled fault: external abort on non-linefetch (0x808) at 0xc4876184
[    2.770000] Internal error: : 808 [#1] PREEMPT
[    2.770000] last sysfs file:
[    2.770000] Modules linked in:
[    2.770000] CPU: 0    Not tainted  (2.6.33.5 #5)
[    2.770000] PC is at ehci_hub_control+0x4d4/0x8f8
[    2.770000] LR is at ehci_mxc_setup+0xbc/0xdc
[    2.770000] pc : [<c0196dfc>]    lr : [<c019bc8c>]    psr: 00000093
[    2.770000] sp : c3815e40  ip : 00000001  fp : 60000013
[    2.770000] r10: c4876184  r9 : 00000000  r8 : c3814000
[    2.770000] r7 : c391d2cc  r6 : 00000001  r5 : 00000001  r4 : 00000000
[    2.770000] r3 : 80000000  r2 : 00000007  r1 : 80000000  r0 : c4876184
[    2.770000] Flags: nzcv  IRQs off  FIQs on  Mode SVC_32  ISA ARM Segment kernel
[    2.770000] Control: 0005317f  Table: a0004000  DAC: 00000017
[    2.770000] Process swapper (pid: 1, stack limit = 0xc3814270)
...

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: stable <stable@kernel.org>
Acked-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/host/ehci-mxc.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index 544ccfd7056e..bd4027745aa7 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -207,10 +207,17 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 	/* Initialize the transceiver */
 	if (pdata->otg) {
 		pdata->otg->io_priv = hcd->regs + ULPI_VIEWPORT_OFFSET;
-		if (otg_init(pdata->otg) != 0)
-			dev_err(dev, "unable to init transceiver\n");
-		else if (otg_set_vbus(pdata->otg, 1) != 0)
+		ret = otg_init(pdata->otg);
+		if (ret) {
+			dev_err(dev, "unable to init transceiver, probably missing\n");
+			ret = -ENODEV;
+			goto err_add;
+		}
+		ret = otg_set_vbus(pdata->otg, 1);
+		if (ret) {
 			dev_err(dev, "unable to enable vbus on transceiver\n");
+			goto err_add;
+		}
 	}
 
 	priv->hcd = hcd;
-- 
cgit v1.2.3-55-g7522


From 3b49d2315c119b9ae8a9a33b07d4eb7d194c01a7 Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy
Date: Fri, 18 Jun 2010 08:25:00 +0400
Subject: USB: s3c2410: deactivate endpoints before gadget unbinding

Gadget disconnect must be called before unbinding to avoid races.
The change fixes an oops on g_ether module unregistering.

Signed-off-by: Vladimir Zapolskiy <vzapolskiy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/gadget/s3c2410_udc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index d5f4c1d45c97..e724a051bfdd 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -1700,9 +1700,13 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
 	if (!driver || driver != udc->driver || !driver->unbind)
 		return -EINVAL;
 
-	dprintk(DEBUG_NORMAL,"usb_gadget_register_driver() '%s'\n",
+	dprintk(DEBUG_NORMAL, "usb_gadget_unregister_driver() '%s'\n",
 		driver->driver.name);
 
+	/* report disconnect */
+	if (driver->disconnect)
+		driver->disconnect(&udc->gadget);
+
 	driver->unbind(&udc->gadget);
 
 	device_del(&udc->gadget.dev);
-- 
cgit v1.2.3-55-g7522


From 64d65872f96e2a754caa12ef48949c314384bd9f Mon Sep 17 00:00:00 2001
From: Alan Stern
Date: Fri, 18 Jun 2010 10:16:33 -0400
Subject: USB: fix oops in usb_sg_init()

This patch (as1401) fixes a bug in usb_sg_init() that can cause an
invalid pointer dereference.  An inner loop reuses some local variables
in an unsafe manner, so new variables are introduced.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/core/message.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index a73e08fdab36..fd4c36ea5e46 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -416,8 +416,11 @@ int usb_sg_init(struct usb_sg_request *io, struct usb_device *dev,
 			/* A length of zero means transfer the whole sg list */
 			len = length;
 			if (len == 0) {
-				for_each_sg(sg, sg, nents, i)
-					len += sg->length;
+				struct scatterlist	*sg2;
+				int			j;
+
+				for_each_sg(sg, sg2, nents, j)
+					len += sg2->length;
 			}
 		} else {
 			/*
-- 
cgit v1.2.3-55-g7522


From 9a49a14da4afe2c4ab7d7025a2f7f0f99a1c90e0 Mon Sep 17 00:00:00 2001
From: Daniel Sangorrin
Date: Fri, 18 Jun 2010 15:30:02 +0900
Subject: USB: serial: ftdi: correct merge conflict with CONTEC id

This patch corrects a problem with the merge of a previous
patch to add the CONTEC identifier.

I believe the merge problem occurred with the commit:
dee5658b482e9e2ac7d6205dc876fc11d4008138

Originally I submitted a patch and then they asked me to order the IDs
and resubmit, so did I. But unfortunately in the end somehow both
patches were merged.

Signed-off-by: Daniel Sangorrin <daniel.sangorrin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/serial/ftdi_sio.c     | 1 -
 drivers/usb/serial/ftdi_sio_ids.h | 7 -------
 2 files changed, 8 deletions(-)

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 79dd1ae195e5..da7e334b0407 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -653,7 +653,6 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(EVOLUTION_VID, EVOLUTION_ER1_PID) },
 	{ USB_DEVICE(EVOLUTION_VID, EVO_HYBRID_PID) },
 	{ USB_DEVICE(EVOLUTION_VID, EVO_RCM4_PID) },
-	{ USB_DEVICE(CONTEC_VID, CONTEC_COM1USBH_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ARTEMIS_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_ATIK_ATK16C_PID) },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 94d86c3febcb..bbc159a1df45 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -500,13 +500,6 @@
 #define CONTEC_VID		0x06CE	/* Vendor ID */
 #define CONTEC_COM1USBH_PID	0x8311	/* COM-1(USB)H */
 
-/*
- * Contec products (http://www.contec.com)
- * Submitted by Daniel Sangorrin
- */
-#define CONTEC_VID		0x06CE	/* Vendor ID */
-#define CONTEC_COM1USBH_PID	0x8311	/* COM-1(USB)H */
-
 /*
  * Definitions for B&B Electronics products.
  */
-- 
cgit v1.2.3-55-g7522


From 1c815577823951ff082fe1201fdd5efec5e6e8ea Mon Sep 17 00:00:00 2001
From: Jiri Slaby
Date: Mon, 21 Jun 2010 17:02:51 +0200
Subject: USB: isp1362-hcd, fix double lock

Stanse found that isp1362_sw_reset tries to take a isp1362_hcd->lock,
but it is already held in isp1362_hc_stop. Avoid that by introducing
__isp1362_sw_reset which doesn't take the lock and call it from
isp1362_hc_stop. isp1362_sw_reset is then as simple as lock --
__isp1362_sw_reset -- unlock.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Lothar Wassmann <LW@KARO-electronics.de>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Cc: Bryan Wu <cooloney@kernel.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/host/isp1362-hcd.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 20a0dfe0fe36..0587ad4ce5c2 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -2224,12 +2224,9 @@ static void remove_debug_file(struct isp1362_hcd *isp1362_hcd)
 
 /*-------------------------------------------------------------------------*/
 
-static void isp1362_sw_reset(struct isp1362_hcd *isp1362_hcd)
+static void __isp1362_sw_reset(struct isp1362_hcd *isp1362_hcd)
 {
 	int tmp = 20;
-	unsigned long flags;
-
-	spin_lock_irqsave(&isp1362_hcd->lock, flags);
 
 	isp1362_write_reg16(isp1362_hcd, HCSWRES, HCSWRES_MAGIC);
 	isp1362_write_reg32(isp1362_hcd, HCCMDSTAT, OHCI_HCR);
@@ -2240,6 +2237,14 @@ static void isp1362_sw_reset(struct isp1362_hcd *isp1362_hcd)
 	}
 	if (!tmp)
 		pr_err("Software reset timeout\n");
+}
+
+static void isp1362_sw_reset(struct isp1362_hcd *isp1362_hcd)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&isp1362_hcd->lock, flags);
+	__isp1362_sw_reset(isp1362_hcd);
 	spin_unlock_irqrestore(&isp1362_hcd->lock, flags);
 }
 
@@ -2418,7 +2423,7 @@ static void isp1362_hc_stop(struct usb_hcd *hcd)
 	if (isp1362_hcd->board && isp1362_hcd->board->reset)
 		isp1362_hcd->board->reset(hcd->self.controller, 1);
 	else
-		isp1362_sw_reset(isp1362_hcd);
+		__isp1362_sw_reset(isp1362_hcd);
 
 	if (isp1362_hcd->board && isp1362_hcd->board->clock)
 		isp1362_hcd->board->clock(hcd->self.controller, 0);
-- 
cgit v1.2.3-55-g7522


From 10ca4425714a6115c5d865718d64874a1e1ea09a Mon Sep 17 00:00:00 2001
From: Jiri Slaby
Date: Mon, 21 Jun 2010 17:02:40 +0200
Subject: USB: gadget/printer, fix sleep inside atomic

Stanse found that sleep is called inside atomic context created by
lock_printer_io spinlock in several functions. It's used in process
context only and some functions sleep inside its critical section. As
this is not allowed for spinlocks, switch it to mutex.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Craig W. Nadler <craig@nadler.us>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/gadget/printer.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index 43abf55d8c60..4c3ac5c42237 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -82,7 +82,7 @@ static struct class *usb_gadget_class;
 struct printer_dev {
 	spinlock_t		lock;		/* lock this structure */
 	/* lock buffer lists during read/write calls */
-	spinlock_t		lock_printer_io;
+	struct mutex		lock_printer_io;
 	struct usb_gadget	*gadget;
 	struct usb_request	*req;		/* for control responses */
 	u8			config;
@@ -567,7 +567,7 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr)
 
 	DBG(dev, "printer_read trying to read %d bytes\n", (int)len);
 
-	spin_lock(&dev->lock_printer_io);
+	mutex_lock(&dev->lock_printer_io);
 	spin_lock_irqsave(&dev->lock, flags);
 
 	/* We will use this flag later to check if a printer reset happened
@@ -601,7 +601,7 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr)
 		 * call or not.
 		 */
 		if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) {
-			spin_unlock(&dev->lock_printer_io);
+			mutex_unlock(&dev->lock_printer_io);
 			return -EAGAIN;
 		}
 
@@ -648,7 +648,7 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr)
 		if (dev->reset_printer) {
 			list_add(&current_rx_req->list, &dev->rx_reqs);
 			spin_unlock_irqrestore(&dev->lock, flags);
-			spin_unlock(&dev->lock_printer_io);
+			mutex_unlock(&dev->lock_printer_io);
 			return -EAGAIN;
 		}
 
@@ -673,7 +673,7 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr)
 	dev->current_rx_buf = current_rx_buf;
 
 	spin_unlock_irqrestore(&dev->lock, flags);
-	spin_unlock(&dev->lock_printer_io);
+	mutex_unlock(&dev->lock_printer_io);
 
 	DBG(dev, "printer_read returned %d bytes\n", (int)bytes_copied);
 
@@ -697,7 +697,7 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 	if (len == 0)
 		return -EINVAL;
 
-	spin_lock(&dev->lock_printer_io);
+	mutex_lock(&dev->lock_printer_io);
 	spin_lock_irqsave(&dev->lock, flags);
 
 	/* Check if a printer reset happens while we have interrupts on */
@@ -713,7 +713,7 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 		 * a NON-Blocking call or not.
 		 */
 		if (fd->f_flags & (O_NONBLOCK|O_NDELAY)) {
-			spin_unlock(&dev->lock_printer_io);
+			mutex_unlock(&dev->lock_printer_io);
 			return -EAGAIN;
 		}
 
@@ -752,7 +752,7 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 
 		if (copy_from_user(req->buf, buf, size)) {
 			list_add(&req->list, &dev->tx_reqs);
-			spin_unlock(&dev->lock_printer_io);
+			mutex_unlock(&dev->lock_printer_io);
 			return bytes_copied;
 		}
 
@@ -766,14 +766,14 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 		if (dev->reset_printer) {
 			list_add(&req->list, &dev->tx_reqs);
 			spin_unlock_irqrestore(&dev->lock, flags);
-			spin_unlock(&dev->lock_printer_io);
+			mutex_unlock(&dev->lock_printer_io);
 			return -EAGAIN;
 		}
 
 		if (usb_ep_queue(dev->in_ep, req, GFP_ATOMIC)) {
 			list_add(&req->list, &dev->tx_reqs);
 			spin_unlock_irqrestore(&dev->lock, flags);
-			spin_unlock(&dev->lock_printer_io);
+			mutex_unlock(&dev->lock_printer_io);
 			return -EAGAIN;
 		}
 
@@ -782,7 +782,7 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 	}
 
 	spin_unlock_irqrestore(&dev->lock, flags);
-	spin_unlock(&dev->lock_printer_io);
+	mutex_unlock(&dev->lock_printer_io);
 
 	DBG(dev, "printer_write sent %d bytes\n", (int)bytes_copied);
 
@@ -820,11 +820,11 @@ printer_poll(struct file *fd, poll_table *wait)
 	unsigned long		flags;
 	int			status = 0;
 
-	spin_lock(&dev->lock_printer_io);
+	mutex_lock(&dev->lock_printer_io);
 	spin_lock_irqsave(&dev->lock, flags);
 	setup_rx_reqs(dev);
 	spin_unlock_irqrestore(&dev->lock, flags);
-	spin_unlock(&dev->lock_printer_io);
+	mutex_unlock(&dev->lock_printer_io);
 
 	poll_wait(fd, &dev->rx_wait, wait);
 	poll_wait(fd, &dev->tx_wait, wait);
@@ -1461,7 +1461,7 @@ autoconf_fail:
 	}
 
 	spin_lock_init(&dev->lock);
-	spin_lock_init(&dev->lock_printer_io);
+	mutex_init(&dev->lock_printer_io);
 	INIT_LIST_HEAD(&dev->tx_reqs);
 	INIT_LIST_HEAD(&dev->tx_reqs_active);
 	INIT_LIST_HEAD(&dev->rx_reqs);
@@ -1594,7 +1594,7 @@ cleanup(void)
 {
 	int status;
 
-	spin_lock(&usb_printer_gadget.lock_printer_io);
+	mutex_lock(&usb_printer_gadget.lock_printer_io);
 	class_destroy(usb_gadget_class);
 	unregister_chrdev_region(g_printer_devno, 2);
 
@@ -1602,6 +1602,6 @@ cleanup(void)
 	if (status)
 		ERROR(dev, "usb_gadget_unregister_driver %x\n", status);
 
-	spin_unlock(&usb_printer_gadget.lock_printer_io);
+	mutex_unlock(&usb_printer_gadget.lock_printer_io);
 }
 module_exit(cleanup);
-- 
cgit v1.2.3-55-g7522


From 0d152de56938361fa2b960db67657b20cdaa6d84 Mon Sep 17 00:00:00 2001
From: Axel Lin
Date: Mon, 21 Jun 2010 08:44:17 +0800
Subject: USB: qcserial: fix a memory leak in qcprobe error path

This patch adds missing kfree(data) before return -ENODEV.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/serial/qcserial.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 04bb759536bb..93d72eb8cafc 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -139,6 +139,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
 					"Could not set interface, error %d\n",
 					retval);
 				retval = -ENODEV;
+				kfree(data);
 			}
 			return retval;
 		}
@@ -155,6 +156,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
 					"Could not set interface, error %d\n",
 					retval);
 				retval = -ENODEV;
+				kfree(data);
 			}
 			return retval;
 		}
@@ -163,6 +165,7 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
 	default:
 		dev_err(&serial->dev->dev,
 			"unknown number of interfaces: %d\n", nintf);
+		kfree(data);
 		return -ENODEV;
 	}
 
-- 
cgit v1.2.3-55-g7522


From 03ab7461df3c74c9418c3f5485ea1127ece1ff79 Mon Sep 17 00:00:00 2001
From: Jiri Pinkava
Date: Sun, 20 Jun 2010 20:05:52 +0200
Subject: USB: gadget eth: Fix calculate CRC32 in EEM

CRC should be calculated for Ethernet frame, not for whole recievede EEM data.
This bug shows rarely, because in many times len == skb->len.

Signed-off-by: Jiri Pinkava <jiri.pinkava@vscht.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/gadget/f_eem.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c
index 38226e9a371d..95dd4662d6a8 100644
--- a/drivers/usb/gadget/f_eem.c
+++ b/drivers/usb/gadget/f_eem.c
@@ -469,8 +469,7 @@ static int eem_unwrap(struct gether *port,
 				crc = get_unaligned_le32(skb->data + len
 							- ETH_FCS_LEN);
 				crc2 = ~crc32_le(~0,
-						skb->data,
-						skb->len - ETH_FCS_LEN);
+						skb->data, len - ETH_FCS_LEN);
 			} else {
 				crc = get_unaligned_be32(skb->data + len
 							- ETH_FCS_LEN);
-- 
cgit v1.2.3-55-g7522


From 48826626263d4a61d06fd8c5805da31f925aefa0 Mon Sep 17 00:00:00 2001
From: Alan Stern
Date: Tue, 22 Jun 2010 16:14:48 -0400
Subject: USB: obey the sysfs power/wakeup setting

This patch (as1403) is a partial reversion of an earlier change
(commit 5f677f1d45b2bf08085bbba7394392dfa586fa8e "USB: fix remote
wakeup settings during system sleep").  After hearing from a user, I
realized that remote wakeup should be enabled during system sleep
whenever userspace allows it, and not only if a driver requests it
too.

Indeed, there could be a device with no driver, that does nothing but
generate a wakeup request when the user presses a button.  Such a
device should be allowed to do its job.

The problem fixed by the earlier patch -- device generating a wakeup
request for no reason, causing system suspend to abort -- was also
addressed by a later patch ("USB: don't enable remote wakeup by
default", accepted but not yet merged into mainline).  The device
won't be able to generate the bogus wakeup requests because it will be
disabled for remote wakeup by default.  Hence this reversion will not
re-introduce any old problems.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org> [.34]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>


---
 drivers/usb/core/driver.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index de98a94d1853..a6bd53ace035 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1272,8 +1272,7 @@ static int usb_resume_both(struct usb_device *udev, pm_message_t msg)
 
 static void choose_wakeup(struct usb_device *udev, pm_message_t msg)
 {
-	int			w, i;
-	struct usb_interface	*intf;
+	int	w;
 
 	/* Remote wakeup is needed only when we actually go to sleep.
 	 * For things like FREEZE and QUIESCE, if the device is already
@@ -1285,16 +1284,10 @@ static void choose_wakeup(struct usb_device *udev, pm_message_t msg)
 		return;
 	}
 
-	/* If remote wakeup is permitted, see whether any interface drivers
+	/* Enable remote wakeup if it is allowed, even if no interface drivers
 	 * actually want it.
 	 */
-	w = 0;
-	if (device_may_wakeup(&udev->dev) && udev->actconfig) {
-		for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) {
-			intf = udev->actconfig->interface[i];
-			w |= intf->needs_remote_wakeup;
-		}
-	}
+	w = device_may_wakeup(&udev->dev);
 
 	/* If the device is autosuspended with the wrong wakeup setting,
 	 * autoresume now so the setting can be changed.
-- 
cgit v1.2.3-55-g7522


From 7d9645fdca444d53907b22a4b73e3967efe09781 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov
Date: Thu, 24 Jun 2010 23:07:06 +0530
Subject: USB: musb_core: make disconnect and suspend interrupts work again

Commit 1c25fda4a09e8229800979986ef399401053b46e (usb: musb: handle irqs in the
order dictated by programming guide) forgot to get rid of the old 'STAGE0_MASK'
filter for calling musb_stage0_irq(), so now disconnect and suspend interrupts
are effectively ignored...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/musb/musb_core.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 56b6debaf2d9..737cab7fc3ce 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -451,10 +451,6 @@ void musb_hnp_stop(struct musb *musb)
  * @param power
  */
 
-#define STAGE0_MASK (MUSB_INTR_RESUME | MUSB_INTR_SESSREQ \
-		| MUSB_INTR_VBUSERROR | MUSB_INTR_CONNECT \
-		| MUSB_INTR_RESET)
-
 static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 				u8 devctl, u8 power)
 {
@@ -1598,7 +1594,7 @@ irqreturn_t musb_interrupt(struct musb *musb)
 	/* the core can interrupt us for multiple reasons; docs have
 	 * a generic interrupt flowchart to follow
 	 */
-	if (musb->int_usb & STAGE0_MASK)
+	if (musb->int_usb)
 		retval |= musb_stage0_irq(musb, musb->int_usb,
 				devctl, power);
 
-- 
cgit v1.2.3-55-g7522


From 9297688a9257d73956d4bba484d9dd331ca72c25 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov
Date: Thu, 24 Jun 2010 23:07:07 +0530
Subject: USB: MUSB: make non-OMAP platforms build with CONFIG_PM=y

Attempt to build MUSB driver with CONFIG_PM=y (e.g. in the OTG mode) on DaVinci
results in these link errors:

drivers/built-in.o: In function `musb_restore_context':
led-triggers.c:(.text+0x714d8): undefined reference to
`musb_platform_restore_context'
drivers/built-in.o: In function `musb_save_context':
led-triggers.c:(.text+0x71788): undefined reference to
`musb_platform_save_context'

This turned out to be caused by commit 9957dd97ec5e98dd334f87ade1d9a0b24d1f86eb
(usb: musb: Fix compile error for omaps for musb_hdrc). Revert it, taking into
account the rename of CONFIG_ARCH_OMAP34XX into CONFIG_ARCH_OMAP3 (which that
commit fixed in a completely inappropriate way) and the recent addition of
OMAP4 support.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/musb/musb_core.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index b22d02dea7d3..91d67794e350 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -470,7 +470,8 @@ struct musb_csr_regs {
 
 struct musb_context_registers {
 
-#ifdef CONFIG_PM
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
+    defined(CONFIG_ARCH_OMAP4)
 	u32 otg_sysconfig, otg_forcestandby;
 #endif
 	u8 power;
@@ -484,7 +485,8 @@ struct musb_context_registers {
 	struct musb_csr_regs index_regs[MUSB_C_NUM_EPS];
 };
 
-#ifdef CONFIG_PM
+#if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) || \
+    defined(CONFIG_ARCH_OMAP4)
 extern void musb_platform_save_context(struct musb *musb,
 		struct musb_context_registers *musb_context);
 extern void musb_platform_restore_context(struct musb *musb,
-- 
cgit v1.2.3-55-g7522


From f2263db74a66f1e341efb115e9f2420678c927b9 Mon Sep 17 00:00:00 2001
From: Mike Frysinger
Date: Thu, 24 Jun 2010 23:07:08 +0530
Subject: USB: musb: fix Blackfin ulpi stubs

The new ulpi code defines fallback stubs for the Blackfin arch, but does
so incorrectly leading to a build failure:
drivers/usb/musb/musb_core.c:227: error: 'musb_ulpi_read' undeclared here (not in a function)
drivers/usb/musb/musb_core.c:228: error: 'musb_ulpi_write' undeclared here (not in a function)

Tweak the fallback stubs so that they do work as intended.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/musb/musb_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 737cab7fc3ce..3b795c56221f 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -219,8 +219,8 @@ static int musb_ulpi_write(struct otg_transceiver *otg,
 	return 0;
 }
 #else
-#define musb_ulpi_read(a, b)		NULL
-#define musb_ulpi_write(a, b, c)	NULL
+#define musb_ulpi_read		NULL
+#define musb_ulpi_write		NULL
 #endif
 
 static struct otg_io_access_ops musb_ulpi_access = {
-- 
cgit v1.2.3-55-g7522


From c0f1f8e38fda8e345cad9269c559b4f036378120 Mon Sep 17 00:00:00 2001
From: Hema HK
Date: Thu, 24 Jun 2010 23:07:09 +0530
Subject: USB: musb: Enable the maximum supported burst mode for DMA

Setting MUSB Burst Mode 3 automatically enables support for
lower burst modes (BURST4, BURST8, BURST16 or bursts of unspecified
length). There is no need to set these burst modes based on the
packet size. Also enable the burst mode for both mode1 and mode0.

This is a fix for buggy hardware - having the lower burst modes
enabled can potentially cause lockups of the DMA engine used in
OMAP2/3/4 chips.

Signed-off-by: Hema HK <hemahk@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/musb/musbhsdma.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index 1008044a3bbc..dc66e4376d49 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -132,18 +132,9 @@ static void configure_channel(struct dma_channel *channel,
 	if (mode) {
 		csr |= 1 << MUSB_HSDMA_MODE1_SHIFT;
 		BUG_ON(len < packet_sz);
-
-		if (packet_sz >= 64) {
-			csr |= MUSB_HSDMA_BURSTMODE_INCR16
-					<< MUSB_HSDMA_BURSTMODE_SHIFT;
-		} else if (packet_sz >= 32) {
-			csr |= MUSB_HSDMA_BURSTMODE_INCR8
-					<< MUSB_HSDMA_BURSTMODE_SHIFT;
-		} else if (packet_sz >= 16) {
-			csr |= MUSB_HSDMA_BURSTMODE_INCR4
-					<< MUSB_HSDMA_BURSTMODE_SHIFT;
-		}
 	}
+	csr |= MUSB_HSDMA_BURSTMODE_INCR16
+				<< MUSB_HSDMA_BURSTMODE_SHIFT;
 
 	csr |= (musb_channel->epnum << MUSB_HSDMA_ENDPOINT_SHIFT)
 		| (1 << MUSB_HSDMA_ENABLE_SHIFT)
-- 
cgit v1.2.3-55-g7522


From e5fd39d9b80aaa0b8a16dd570fa55009905d6af4 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz
Date: Fri, 25 Jun 2010 16:29:26 +0200
Subject: USB: gadget: f_mass_storage: fixed fs descriptors not being updated

The full speed descriptors were copied to the usb_function structure
in the fsg_bind_config function before call to the usb_ep_autoconfig.
The usb_ep_autoconfig was called in fsg_bind using the original
descriptors.  In effect copied descriptors were not updated.

This patch changes the copy full speed descriptors after the call to
usb_op_autoconfig is performed.  This way, copied full speed
descriptors have updated values.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Reported-by: Dries Van Puymbroeck <Dries.VanPuymbroeck@dekimo.com>
Tested-by: Dries Van Puymbroeck <Dries.VanPuymbroeck@dekimo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/gadget/f_mass_storage.c | 34 ++++++++++++----------------------
 1 file changed, 12 insertions(+), 22 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 7d05a0be5c60..f866b7e72a28 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2970,7 +2970,6 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
 {
 	struct fsg_dev		*fsg = fsg_from_func(f);
 	struct usb_gadget	*gadget = c->cdev->gadget;
-	int			rc;
 	int			i;
 	struct usb_ep		*ep;
 
@@ -2996,6 +2995,11 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
 	ep->driver_data = fsg->common;	/* claim the endpoint */
 	fsg->bulk_out = ep;
 
+	/* Copy descriptors */
+	f->descriptors = usb_copy_descriptors(fsg_fs_function);
+	if (unlikely(!f->descriptors))
+		return -ENOMEM;
+
 	if (gadget_is_dualspeed(gadget)) {
 		/* Assume endpoint addresses are the same for both speeds */
 		fsg_hs_bulk_in_desc.bEndpointAddress =
@@ -3003,16 +3007,17 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
 		fsg_hs_bulk_out_desc.bEndpointAddress =
 			fsg_fs_bulk_out_desc.bEndpointAddress;
 		f->hs_descriptors = usb_copy_descriptors(fsg_hs_function);
-		if (unlikely(!f->hs_descriptors))
+		if (unlikely(!f->hs_descriptors)) {
+			usb_free_descriptors(f->descriptors);
 			return -ENOMEM;
+		}
 	}
 
 	return 0;
 
 autoconf_fail:
 	ERROR(fsg, "unable to autoconfigure all endpoints\n");
-	rc = -ENOTSUPP;
-	return rc;
+	return -ENOTSUPP;
 }
 
 
@@ -3036,11 +3041,6 @@ static int fsg_add(struct usb_composite_dev *cdev,
 
 	fsg->function.name        = FSG_DRIVER_DESC;
 	fsg->function.strings     = fsg_strings_array;
-	fsg->function.descriptors = usb_copy_descriptors(fsg_fs_function);
-	if (unlikely(!fsg->function.descriptors)) {
-		rc = -ENOMEM;
-		goto error_free_fsg;
-	}
 	fsg->function.bind        = fsg_bind;
 	fsg->function.unbind      = fsg_unbind;
 	fsg->function.setup       = fsg_setup;
@@ -3056,19 +3056,9 @@ static int fsg_add(struct usb_composite_dev *cdev,
 
 	rc = usb_add_function(c, &fsg->function);
 	if (unlikely(rc))
-		goto error_free_all;
-
-	fsg_common_get(fsg->common);
-	return 0;
-
-error_free_all:
-	usb_free_descriptors(fsg->function.descriptors);
-	/* fsg_bind() might have copied those; or maybe not? who cares
-	 * -- free it just in case. */
-	usb_free_descriptors(fsg->function.hs_descriptors);
-error_free_fsg:
-	kfree(fsg);
-
+		kfree(fsg);
+	else
+		fsg_common_get(fsg->common);
 	return rc;
 }
 
-- 
cgit v1.2.3-55-g7522


From b894f60a232d552fc18b018271c2893f0b0c1c15 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz
Date: Fri, 25 Jun 2010 16:29:28 +0200
Subject: USB: gadget: f_mass_storage: stale common->fsg value bug fix

On fsg_unbind the common->fsg pointer was not NULLed if the
unbound fsg_dev instance was the current one.  As an effect,
the incorrect pointer was preserved in all further operations
which caused do_set_interface to reference an invalid region.

This commit fixes this by raising an exception in fsg_bind
which will change the common->fsg pointer.  This also requires
an wait queue so that the thread in fsg_bind can wait till the
worker thread handles the exception.

This commit removes also a config and new_config fields of
fsg_common as they are no longer needed since fsg can be
used to determine whether function is active or not.

Moreover, this commit removes possible race condition where
the fsg field was modified in both the worker thread and
form various other contexts.  This is fixed by replacing
prev_fsg with new_fsg.  At this point, fsg is assigned only
in worker thread.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/usb/gadget/f_mass_storage.c | 160 ++++++++++++++----------------------
 1 file changed, 61 insertions(+), 99 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index f866b7e72a28..4ce899c9b165 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -321,8 +321,8 @@ struct fsg_dev;
 /* Data shared by all the FSG instances. */
 struct fsg_common {
 	struct usb_gadget	*gadget;
-	struct fsg_dev		*fsg;
-	struct fsg_dev		*prev_fsg;
+	struct fsg_dev		*fsg, *new_fsg;
+	wait_queue_head_t	fsg_wait;
 
 	/* filesem protects: backing files in use */
 	struct rw_semaphore	filesem;
@@ -351,7 +351,6 @@ struct fsg_common {
 	enum fsg_state		state;		/* For exception handling */
 	unsigned int		exception_req_tag;
 
-	u8			config, new_config;
 	enum data_direction	data_dir;
 	u32			data_size;
 	u32			data_size_from_cmnd;
@@ -595,7 +594,7 @@ static int fsg_setup(struct usb_function *f,
 	u16			w_value = le16_to_cpu(ctrl->wValue);
 	u16			w_length = le16_to_cpu(ctrl->wLength);
 
-	if (!fsg->common->config)
+	if (!fsg_is_set(fsg->common))
 		return -EOPNOTSUPP;
 
 	switch (ctrl->bRequest) {
@@ -2303,24 +2302,20 @@ static int alloc_request(struct fsg_common *common, struct usb_ep *ep,
 	return -ENOMEM;
 }
 
-/*
- * Reset interface setting and re-init endpoint state (toggle etc).
- * Call with altsetting < 0 to disable the interface.  The only other
- * available altsetting is 0, which enables the interface.
- */
-static int do_set_interface(struct fsg_common *common, int altsetting)
+/* Reset interface setting and re-init endpoint state (toggle etc). */
+static int do_set_interface(struct fsg_common *common, struct fsg_dev *new_fsg)
 {
-	int	rc = 0;
-	int	i;
-	const struct usb_endpoint_descriptor	*d;
+	const struct usb_endpoint_descriptor *d;
+	struct fsg_dev *fsg;
+	int i, rc = 0;
 
 	if (common->running)
 		DBG(common, "reset interface\n");
 
 reset:
 	/* Deallocate the requests */
-	if (common->prev_fsg) {
-		struct fsg_dev *fsg = common->prev_fsg;
+	if (common->fsg) {
+		fsg = common->fsg;
 
 		for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
 			struct fsg_buffhd *bh = &common->buffhds[i];
@@ -2345,88 +2340,53 @@ reset:
 			fsg->bulk_out_enabled = 0;
 		}
 
-		common->prev_fsg = 0;
+		common->fsg = NULL;
+		wake_up(&common->fsg_wait);
 	}
 
 	common->running = 0;
-	if (altsetting < 0 || rc != 0)
+	if (!new_fsg || rc)
 		return rc;
 
-	DBG(common, "set interface %d\n", altsetting);
+	common->fsg = new_fsg;
+	fsg = common->fsg;
 
-	if (fsg_is_set(common)) {
-		struct fsg_dev *fsg = common->fsg;
-		common->prev_fsg = common->fsg;
+	/* Enable the endpoints */
+	d = fsg_ep_desc(common->gadget,
+			&fsg_fs_bulk_in_desc, &fsg_hs_bulk_in_desc);
+	rc = enable_endpoint(common, fsg->bulk_in, d);
+	if (rc)
+		goto reset;
+	fsg->bulk_in_enabled = 1;
+
+	d = fsg_ep_desc(common->gadget,
+			&fsg_fs_bulk_out_desc, &fsg_hs_bulk_out_desc);
+	rc = enable_endpoint(common, fsg->bulk_out, d);
+	if (rc)
+		goto reset;
+	fsg->bulk_out_enabled = 1;
+	common->bulk_out_maxpacket = le16_to_cpu(d->wMaxPacketSize);
+	clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
+
+	/* Allocate the requests */
+	for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
+		struct fsg_buffhd	*bh = &common->buffhds[i];
 
-		/* Enable the endpoints */
-		d = fsg_ep_desc(common->gadget,
-				&fsg_fs_bulk_in_desc, &fsg_hs_bulk_in_desc);
-		rc = enable_endpoint(common, fsg->bulk_in, d);
+		rc = alloc_request(common, fsg->bulk_in, &bh->inreq);
 		if (rc)
 			goto reset;
-		fsg->bulk_in_enabled = 1;
-
-		d = fsg_ep_desc(common->gadget,
-				&fsg_fs_bulk_out_desc, &fsg_hs_bulk_out_desc);
-		rc = enable_endpoint(common, fsg->bulk_out, d);
+		rc = alloc_request(common, fsg->bulk_out, &bh->outreq);
 		if (rc)
 			goto reset;
-		fsg->bulk_out_enabled = 1;
-		common->bulk_out_maxpacket = le16_to_cpu(d->wMaxPacketSize);
-		clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
-
-		/* Allocate the requests */
-		for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
-			struct fsg_buffhd	*bh = &common->buffhds[i];
-
-			rc = alloc_request(common, fsg->bulk_in, &bh->inreq);
-			if (rc)
-				goto reset;
-			rc = alloc_request(common, fsg->bulk_out, &bh->outreq);
-			if (rc)
-				goto reset;
-			bh->inreq->buf = bh->outreq->buf = bh->buf;
-			bh->inreq->context = bh->outreq->context = bh;
-			bh->inreq->complete = bulk_in_complete;
-			bh->outreq->complete = bulk_out_complete;
-		}
-
-		common->running = 1;
-		for (i = 0; i < common->nluns; ++i)
-			common->luns[i].unit_attention_data = SS_RESET_OCCURRED;
-		return rc;
-	} else {
-		return -EIO;
+		bh->inreq->buf = bh->outreq->buf = bh->buf;
+		bh->inreq->context = bh->outreq->context = bh;
+		bh->inreq->complete = bulk_in_complete;
+		bh->outreq->complete = bulk_out_complete;
 	}
-}
 
-
-/*
- * Change our operational configuration.  This code must agree with the code
- * that returns config descriptors, and with interface altsetting code.
- *
- * It's also responsible for power management interactions.  Some
- * configurations might not work with our current power sources.
- * For now we just assume the gadget is always self-powered.
- */
-static int do_set_config(struct fsg_common *common, u8 new_config)
-{
-	int	rc = 0;
-
-	/* Disable the single interface */
-	if (common->config != 0) {
-		DBG(common, "reset config\n");
-		common->config = 0;
-		rc = do_set_interface(common, -1);
-	}
-
-	/* Enable the interface */
-	if (new_config != 0) {
-		common->config = new_config;
-		rc = do_set_interface(common, 0);
-		if (rc != 0)
-			common->config = 0;	/* Reset on errors */
-	}
+	common->running = 1;
+	for (i = 0; i < common->nluns; ++i)
+		common->luns[i].unit_attention_data = SS_RESET_OCCURRED;
 	return rc;
 }
 
@@ -2437,9 +2397,7 @@ static int do_set_config(struct fsg_common *common, u8 new_config)
 static int fsg_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
 {
 	struct fsg_dev *fsg = fsg_from_func(f);
-	fsg->common->prev_fsg = fsg->common->fsg;
-	fsg->common->fsg = fsg;
-	fsg->common->new_config = 1;
+	fsg->common->new_fsg = fsg;
 	raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE);
 	return 0;
 }
@@ -2447,9 +2405,7 @@ static int fsg_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
 static void fsg_disable(struct usb_function *f)
 {
 	struct fsg_dev *fsg = fsg_from_func(f);
-	fsg->common->prev_fsg = fsg->common->fsg;
-	fsg->common->fsg = fsg;
-	fsg->common->new_config = 0;
+	fsg->common->new_fsg = NULL;
 	raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE);
 }
 
@@ -2459,19 +2415,17 @@ static void fsg_disable(struct usb_function *f)
 static void handle_exception(struct fsg_common *common)
 {
 	siginfo_t		info;
-	int			sig;
 	int			i;
 	struct fsg_buffhd	*bh;
 	enum fsg_state		old_state;
-	u8			new_config;
 	struct fsg_lun		*curlun;
 	unsigned int		exception_req_tag;
-	int			rc;
 
 	/* Clear the existing signals.  Anything but SIGUSR1 is converted
 	 * into a high-priority EXIT exception. */
 	for (;;) {
-		sig = dequeue_signal_lock(current, &current->blocked, &info);
+		int sig =
+			dequeue_signal_lock(current, &current->blocked, &info);
 		if (!sig)
 			break;
 		if (sig != SIGUSR1) {
@@ -2482,7 +2436,7 @@ static void handle_exception(struct fsg_common *common)
 	}
 
 	/* Cancel all the pending transfers */
-	if (fsg_is_set(common)) {
+	if (likely(common->fsg)) {
 		for (i = 0; i < FSG_NUM_BUFFERS; ++i) {
 			bh = &common->buffhds[i];
 			if (bh->inreq_busy)
@@ -2523,7 +2477,6 @@ static void handle_exception(struct fsg_common *common)
 	common->next_buffhd_to_fill = &common->buffhds[0];
 	common->next_buffhd_to_drain = &common->buffhds[0];
 	exception_req_tag = common->exception_req_tag;
-	new_config = common->new_config;
 	old_state = common->state;
 
 	if (old_state == FSG_STATE_ABORT_BULK_OUT)
@@ -2573,12 +2526,12 @@ static void handle_exception(struct fsg_common *common)
 		break;
 
 	case FSG_STATE_CONFIG_CHANGE:
-		rc = do_set_config(common, new_config);
+		do_set_interface(common, common->new_fsg);
 		break;
 
 	case FSG_STATE_EXIT:
 	case FSG_STATE_TERMINATED:
-		do_set_config(common, 0);		/* Free resources */
+		do_set_interface(common, NULL);		/* Free resources */
 		spin_lock_irq(&common->lock);
 		common->state = FSG_STATE_TERMINATED;	/* Stop the thread */
 		spin_unlock_irq(&common->lock);
@@ -2863,6 +2816,7 @@ buffhds_first_it:
 		goto error_release;
 	}
 	init_completion(&common->thread_notifier);
+	init_waitqueue_head(&common->fsg_wait);
 #undef OR
 
 
@@ -2957,9 +2911,17 @@ static void fsg_common_release(struct kref *ref)
 static void fsg_unbind(struct usb_configuration *c, struct usb_function *f)
 {
 	struct fsg_dev		*fsg = fsg_from_func(f);
+	struct fsg_common	*common = fsg->common;
 
 	DBG(fsg, "unbind\n");
-	fsg_common_put(fsg->common);
+	if (fsg->common->fsg == fsg) {
+		fsg->common->new_fsg = NULL;
+		raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE);
+		/* FIXME: make interruptible or killable somehow? */
+		wait_event(common->fsg_wait, common->fsg != fsg);
+	}
+
+	fsg_common_put(common);
 	usb_free_descriptors(fsg->function.descriptors);
 	usb_free_descriptors(fsg->function.hs_descriptors);
 	kfree(fsg);
-- 
cgit v1.2.3-55-g7522


From f2102d31de1f0ddb9ced62d65d2ed89a5149ea39 Mon Sep 17 00:00:00 2001
From: Himanshu Chauhan
Date: Fri, 4 Jun 2010 23:16:27 +0530
Subject: staging: usbip: usbip_common: kill rx thread on tx thread creation
 error.

Signed-off-by: Himanshu Chauhan <hschauhan@nulltrace.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/usbip/usbip_common.c | 46 ++++++++++++++++++++++++++----------
 1 file changed, 33 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c
index 52408164036f..6a499f0eb594 100644
--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -378,47 +378,67 @@ int usbip_thread(void *param)
 	complete_and_exit(&ut->thread_done, 0);
 }
 
+static void stop_rx_thread(struct usbip_device *ud)
+{
+	if (ud->tcp_rx.thread != NULL) {
+		send_sig(SIGKILL, ud->tcp_rx.thread, 1);
+		wait_for_completion(&ud->tcp_rx.thread_done);
+		usbip_udbg("rx_thread for ud %p has finished\n", ud);
+	}
+}
+
+static void stop_tx_thread(struct usbip_device *ud)
+{
+	if (ud->tcp_tx.thread != NULL) {
+		send_sig(SIGKILL, ud->tcp_tx.thread, 1);
+		wait_for_completion(&ud->tcp_tx.thread_done);
+		usbip_udbg("tx_thread for ud %p has finished\n", ud);
+	}
+}
+
 int usbip_start_threads(struct usbip_device *ud)
 {
 	/*
 	 * threads are invoked per one device (per one connection).
 	 */
 	struct task_struct *th;
+	int err = 0;
 
 	th = kthread_run(usbip_thread, (void *)&ud->tcp_rx, "usbip");
 	if (IS_ERR(th)) {
 		printk(KERN_WARNING
 			"Unable to start control thread\n");
-		return PTR_ERR(th);
+		err = PTR_ERR(th);
+		goto ust_exit;
 	}
+
 	th = kthread_run(usbip_thread, (void *)&ud->tcp_tx, "usbip");
 	if (IS_ERR(th)) {
 		printk(KERN_WARNING
 			"Unable to start control thread\n");
-		return PTR_ERR(th);
+		err = PTR_ERR(th);
+		goto tx_thread_err;
 	}
 
 	/* confirm threads are starting */
 	wait_for_completion(&ud->tcp_rx.thread_done);
 	wait_for_completion(&ud->tcp_tx.thread_done);
+
 	return 0;
+
+tx_thread_err:
+	stop_rx_thread(ud);
+
+ust_exit:
+	return err;
 }
 EXPORT_SYMBOL_GPL(usbip_start_threads);
 
 void usbip_stop_threads(struct usbip_device *ud)
 {
 	/* kill threads related to this sdev, if v.c. exists */
-	if (ud->tcp_rx.thread != NULL) {
-		send_sig(SIGKILL, ud->tcp_rx.thread, 1);
-		wait_for_completion(&ud->tcp_rx.thread_done);
-		usbip_udbg("rx_thread for ud %p has finished\n", ud);
-	}
-
-	if (ud->tcp_tx.thread != NULL) {
-		send_sig(SIGKILL, ud->tcp_tx.thread, 1);
-		wait_for_completion(&ud->tcp_tx.thread_done);
-		usbip_udbg("tx_thread for ud %p has finished\n", ud);
-	}
+	stop_rx_thread(ud);
+	stop_tx_thread(ud);
 }
 EXPORT_SYMBOL_GPL(usbip_stop_threads);
 
-- 
cgit v1.2.3-55-g7522


From 25477f2398f39a35f110e02f6c7d8dd1023c47c1 Mon Sep 17 00:00:00 2001
From: Dan Carpenter
Date: Sun, 6 Jun 2010 21:03:04 +0200
Subject: Staging: batman-adv: return -EFAULT on copy_to_user errors

copy_to_user() returns the number of bites remaining but we want to
return a negative error code here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/batman-adv/device.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/batman-adv/device.c b/drivers/staging/batman-adv/device.c
index 7eb6559e0315..32204b5572d0 100644
--- a/drivers/staging/batman-adv/device.c
+++ b/drivers/staging/batman-adv/device.c
@@ -196,7 +196,7 @@ ssize_t bat_device_read(struct file *file, char __user *buf, size_t count,
 	kfree(device_packet);
 
 	if (error)
-		return error;
+		return -EFAULT;
 
 	return sizeof(struct icmp_packet);
 }
-- 
cgit v1.2.3-55-g7522


From eb169d1cc7fb219cc42c584f7a195f71913e6b6a Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas
Date: Sun, 6 Jun 2010 21:03:05 +0200
Subject: Staging: batman-adv: fix function prototype

In today linux-next I got a compile warning in staging/batman-adv.

This is due a struct bin_attribute read function prototype change and the driver was not updated.

This patch solves the issue

Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: Sven Eckelmann <sven.eckelmann@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/batman-adv/bat_sysfs.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/batman-adv/bat_sysfs.c b/drivers/staging/batman-adv/bat_sysfs.c
index e2c000b80ca0..212bc21e6d68 100644
--- a/drivers/staging/batman-adv/bat_sysfs.c
+++ b/drivers/staging/batman-adv/bat_sysfs.c
@@ -225,9 +225,9 @@ static struct bat_attribute *mesh_attrs[] = {
 	NULL,
 };
 
-static ssize_t transtable_local_read(struct kobject *kobj,
-			       struct bin_attribute *bin_attr,
-			       char *buff, loff_t off, size_t count)
+static ssize_t transtable_local_read(struct file *filp, struct kobject *kobj,
+				  struct bin_attribute *bin_attr,
+				  char *buff, loff_t off, size_t count)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct net_device *net_dev = to_net_dev(dev);
@@ -235,9 +235,9 @@ static ssize_t transtable_local_read(struct kobject *kobj,
 	return hna_local_fill_buffer_text(net_dev, buff, count, off);
 }
 
-static ssize_t transtable_global_read(struct kobject *kobj,
-			       struct bin_attribute *bin_attr,
-			       char *buff, loff_t off, size_t count)
+static ssize_t transtable_global_read(struct file *filp, struct kobject *kobj,
+				  struct bin_attribute *bin_attr,
+				  char *buff, loff_t off, size_t count)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct net_device *net_dev = to_net_dev(dev);
@@ -245,9 +245,9 @@ static ssize_t transtable_global_read(struct kobject *kobj,
 	return hna_global_fill_buffer_text(net_dev, buff, count, off);
 }
 
-static ssize_t originators_read(struct kobject *kobj,
-			       struct bin_attribute *bin_attr,
-			       char *buff, loff_t off, size_t count)
+static ssize_t originators_read(struct file *filp, struct kobject *kobj,
+				  struct bin_attribute *bin_attr,
+				  char *buff, loff_t off, size_t count)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct net_device *net_dev = to_net_dev(dev);
@@ -255,9 +255,9 @@ static ssize_t originators_read(struct kobject *kobj,
 	return orig_fill_buffer_text(net_dev, buff, count, off);
 }
 
-static ssize_t vis_data_read(struct kobject *kobj,
-			     struct bin_attribute *bin_attr,
-			     char *buff, loff_t off, size_t count)
+static ssize_t vis_data_read(struct file *filp, struct kobject *kobj,
+				  struct bin_attribute *bin_attr,
+				  char *buff, loff_t off, size_t count)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct net_device *net_dev = to_net_dev(dev);
-- 
cgit v1.2.3-55-g7522


From 44176d9f8265de799512f833ca4d9785aa016b3a Mon Sep 17 00:00:00 2001
From: Dan Carpenter
Date: Sat, 5 Jun 2010 19:16:42 +0200
Subject: Staging: mrst-touchscreen: fix dereferencing free memory

I moved the kfree() down a couple lines after the dereference.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/mrst-touchscreen/intel-mid-touch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/mrst-touchscreen/intel-mid-touch.c b/drivers/staging/mrst-touchscreen/intel-mid-touch.c
index 1db00975a594..abba22f921be 100644
--- a/drivers/staging/mrst-touchscreen/intel-mid-touch.c
+++ b/drivers/staging/mrst-touchscreen/intel-mid-touch.c
@@ -817,9 +817,9 @@ static int mrstouch_remove(struct spi_device *spi)
 	free_irq(mrstouchdevp->irq, mrstouchdevp);
 	input_unregister_device(mrstouchdevp->input);
 	input_free_device(mrstouchdevp->input);
-	kfree(mrstouchdevp);
 	if (mrstouchdevp->pendet_thrd)
 		kthread_stop(mrstouchdevp->pendet_thrd);
+	kfree(mrstouchdevp);
 	return 0;
 }
 
-- 
cgit v1.2.3-55-g7522


From 6c2fd308045ba902fbe9f4408daa7b949fa8f5a1 Mon Sep 17 00:00:00 2001
From: Ian Abbott
Date: Fri, 18 Jun 2010 12:11:28 +0100
Subject: Staging: comedi: drivers: adl_pci9111: Fix AI commands in TRIG_FOLLOW
 case

I received a report that AI streaming acquisitions do not work properly
for the adl_pci9111 driver when convert_src is TRIG_TIMER and
scan_begin_src is TRIG_FOLLOW (and scan_begin_arg is therefore 0).  This
seems to be down to the incorrect setting of dev_private->scan_delay in
pci9111_ai_do_cmd().  Under the previously stated conditions,
dev_private->scan_delay ends up set to (unsigned int)-1, but it ought to
be set to 0.  The function sets it to 0 initially, and it only makes
sense to change it if both convert_src and scan_begin_src are set to
TRIG_TIMER.

Note: 'scan_delay' is the number of unwanted scans to discard after each
valid scan.  The hardware does not support 'scan' timing as such, just a
regularly paced conversion timer (with automatic channel switching
between conversions).  The driver simulates a scan period that is some
(>1) multiple of the conversion period times the scan length
(chanlist_len samples) by reading chanlist_len samples and discarding
the next scan_delay times chanlist_len samples.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/comedi/drivers/adl_pci9111.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
index 36a254cd4413..39d112b708e3 100644
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ b/drivers/staging/comedi/drivers/adl_pci9111.c
@@ -824,9 +824,12 @@ static int pci9111_ai_do_cmd(struct comedi_device *dev,
 		plx9050_interrupt_control(dev_private->lcr_io_base, true, true,
 					  false, true, true);
 
-		dev_private->scan_delay =
-		    (async_cmd->scan_begin_arg / (async_cmd->convert_arg *
-						  async_cmd->chanlist_len)) - 1;
+		if (async_cmd->scan_begin_src == TRIG_TIMER) {
+			dev_private->scan_delay =
+				(async_cmd->scan_begin_arg /
+				 (async_cmd->convert_arg *
+				  async_cmd->chanlist_len)) - 1;
+		}
 
 		break;
 
-- 
cgit v1.2.3-55-g7522


From 8b5d6d3bd3e34e4cc67d875c8c88007c1c9aa960 Mon Sep 17 00:00:00 2001
From: Haiyang Zhang
Date: Fri, 28 May 2010 23:22:44 +0000
Subject: staging: hv: Fix race condition on vmbus channel initialization

There is a possible race condition when hv_utils starts to load immediately
after hv_vmbus is loading - null pointer error could happen.
This patch added wait/completion to ensure all channels are ready before
vmbus loading completes. So another module won't have any uninitialized channel.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>


---
 drivers/staging/hv/channel_mgmt.c | 41 ++++++++++++++++++++++++++++-----------
 drivers/staging/hv/vmbus.h        |  2 ++
 drivers/staging/hv/vmbus_drv.c    |  3 +++
 3 files changed, 35 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/hv/channel_mgmt.c b/drivers/staging/hv/channel_mgmt.c
index 3f53b4d1e4cf..12db555a3a5d 100644
--- a/drivers/staging/hv/channel_mgmt.c
+++ b/drivers/staging/hv/channel_mgmt.c
@@ -23,6 +23,7 @@
 #include <linux/slab.h>
 #include <linux/list.h>
 #include <linux/module.h>
+#include <linux/completion.h>
 #include "osd.h"
 #include "logging.h"
 #include "vmbus_private.h"
@@ -293,6 +294,25 @@ void FreeVmbusChannel(struct vmbus_channel *Channel)
 			      Channel);
 }
 
+
+DECLARE_COMPLETION(hv_channel_ready);
+
+/*
+ * Count initialized channels, and ensure all channels are ready when hv_vmbus
+ * module loading completes.
+ */
+static void count_hv_channel(void)
+{
+	static int counter;
+	unsigned long flags;
+
+	spin_lock_irqsave(&gVmbusConnection.channel_lock, flags);
+	if (++counter == MAX_MSG_TYPES)
+		complete(&hv_channel_ready);
+	spin_unlock_irqrestore(&gVmbusConnection.channel_lock, flags);
+}
+
+
 /*
  * VmbusChannelProcessOffer - Process the offer by creating a channel/device
  * associated with this offer
@@ -373,22 +393,21 @@ static void VmbusChannelProcessOffer(void *context)
 		 * can cleanup properly
 		 */
 		newChannel->State = CHANNEL_OPEN_STATE;
-		cnt = 0;
 
-		while (cnt != MAX_MSG_TYPES) {
+		/* Open IC channels */
+		for (cnt = 0; cnt < MAX_MSG_TYPES; cnt++) {
 			if (memcmp(&newChannel->OfferMsg.Offer.InterfaceType,
 				   &hv_cb_utils[cnt].data,
-				   sizeof(struct hv_guid)) == 0) {
+				   sizeof(struct hv_guid)) == 0 &&
+				VmbusChannelOpen(newChannel, 2 * PAGE_SIZE,
+						 2 * PAGE_SIZE, NULL, 0,
+						 hv_cb_utils[cnt].callback,
+						 newChannel) == 0) {
+				hv_cb_utils[cnt].channel = newChannel;
 				DPRINT_INFO(VMBUS, "%s",
-					    hv_cb_utils[cnt].log_msg);
-
-				if (VmbusChannelOpen(newChannel, 2 * PAGE_SIZE,
-						    2 * PAGE_SIZE, NULL, 0,
-						    hv_cb_utils[cnt].callback,
-						    newChannel) == 0)
-					hv_cb_utils[cnt].channel = newChannel;
+						hv_cb_utils[cnt].log_msg);
+				count_hv_channel();
 			}
-			cnt++;
 		}
 	}
 	DPRINT_EXIT(VMBUS);
diff --git a/drivers/staging/hv/vmbus.h b/drivers/staging/hv/vmbus.h
index 0c6ee0f487f3..3c14b2926e00 100644
--- a/drivers/staging/hv/vmbus.h
+++ b/drivers/staging/hv/vmbus.h
@@ -74,4 +74,6 @@ int vmbus_child_driver_register(struct driver_context *driver_ctx);
 void vmbus_child_driver_unregister(struct driver_context *driver_ctx);
 void vmbus_get_interface(struct vmbus_channel_interface *interface);
 
+extern struct completion hv_channel_ready;
+
 #endif /* _VMBUS_H_ */
diff --git a/drivers/staging/hv/vmbus_drv.c b/drivers/staging/hv/vmbus_drv.c
index c21731a12ca7..22c80ece6388 100644
--- a/drivers/staging/hv/vmbus_drv.c
+++ b/drivers/staging/hv/vmbus_drv.c
@@ -27,6 +27,7 @@
 #include <linux/pci.h>
 #include <linux/dmi.h>
 #include <linux/slab.h>
+#include <linux/completion.h>
 #include "version_info.h"
 #include "osd.h"
 #include "logging.h"
@@ -356,6 +357,8 @@ static int vmbus_bus_init(int (*drv_init)(struct hv_driver *drv))
 
 	vmbus_drv_obj->GetChannelOffers();
 
+	wait_for_completion(&hv_channel_ready);
+
 cleanup:
 	DPRINT_EXIT(VMBUS_DRV);
 
-- 
cgit v1.2.3-55-g7522


From d750785f305e03669757678c24cb4e6e8761edf0 Mon Sep 17 00:00:00 2001
From: Haiyang Zhang
Date: Wed, 19 May 2010 15:56:28 +0000
Subject: Staging: hv: fix hv_utils module to properly autoload

Added autoloading based on pci id and dmi strings.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/hv/hv_utils.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/drivers/staging/hv/hv_utils.c b/drivers/staging/hv/hv_utils.c
index 8a49aafea37a..2adc9b48ca9c 100644
--- a/drivers/staging/hv/hv_utils.c
+++ b/drivers/staging/hv/hv_utils.c
@@ -24,6 +24,8 @@
 #include <linux/slab.h>
 #include <linux/sysctl.h>
 #include <linux/reboot.h>
+#include <linux/dmi.h>
+#include <linux/pci.h>
 
 #include "logging.h"
 #include "osd.h"
@@ -251,10 +253,36 @@ static void heartbeat_onchannelcallback(void *context)
 	DPRINT_EXIT(VMBUS);
 }
 
+static const struct pci_device_id __initconst
+hv_utils_pci_table[] __maybe_unused = {
+	{ PCI_DEVICE(0x1414, 0x5353) }, /* Hyper-V emulated VGA controller */
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(pci, hv_utils_pci_table);
+
+
+static const struct dmi_system_id __initconst
+hv_utils_dmi_table[] __maybe_unused  = {
+	{
+		.ident = "Hyper-V",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Virtual Machine"),
+			DMI_MATCH(DMI_BOARD_NAME, "Virtual Machine"),
+		},
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(dmi, hv_utils_dmi_table);
+
+
 static int __init init_hyperv_utils(void)
 {
 	printk(KERN_INFO "Registering HyperV Utility Driver\n");
 
+	if (!dmi_check_system(hv_utils_dmi_table))
+		return -ENODEV;
+
 	hv_cb_utils[HV_SHUTDOWN_MSG].channel->OnChannelCallback =
 		&shutdown_onchannelcallback;
 	hv_cb_utils[HV_SHUTDOWN_MSG].callback = &shutdown_onchannelcallback;
-- 
cgit v1.2.3-55-g7522


From 8174fc04e8e71b3969a45c9be288f6535d6b90d3 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney
Date: Wed, 9 Jun 2010 16:01:10 -0400
Subject: Staging: wlags49_h2: add missing <linux/string.h> for strlen

On ia64, the build fails with incompatible implicit definition of strlen.
This patch adds the <linux/string.h> include to get the real prototype.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/wlags49_h2/wl_enc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/wlags49_h2/wl_enc.c b/drivers/staging/wlags49_h2/wl_enc.c
index 48c44c8fdb28..26cf5486edd6 100644
--- a/drivers/staging/wlags49_h2/wl_enc.c
+++ b/drivers/staging/wlags49_h2/wl_enc.c
@@ -62,6 +62,7 @@
 /*******************************************************************************
  *  include files
  ******************************************************************************/
+#include <linux/string.h>
 #include <wl_version.h>
 
 #include <debug.h>
-- 
cgit v1.2.3-55-g7522


From d268e0d28165340c3799a8a4944bc40f444f49fd Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas
Date: Thu, 17 Jun 2010 01:17:44 -0400
Subject: Staging: wlags49_h2: Fix build error when CONFIG_SYSFS is not set

I got a wlags49_h2 driver build error in linux-next when CONFIG_SYSFS is not set.

CC [M]  drivers/staging/wlags49_h2/wl_cs.o
In file included from drivers/staging/wlags49_h2/wl_cs.c:104:
drivers/staging/wlags49_h2/wl_sysfs.h: In function ‘register_wlags_sysfs’:
drivers/staging/wlags49_h2/wl_sysfs.h:5: error: parameter name omitted
drivers/staging/wlags49_h2/wl_sysfs.h: In function ‘unregister_wlags_sysfs’:
drivers/staging/wlags49_h2/wl_sysfs.h:6: error: parameter name omitted
make[1]: *** [drivers/staging/wlags49_h2/wl_cs.o] Error 1
make: *** [_module_drivers/staging/wlags49_h2] Error 2

This is due a wrong function definition (it does not include parameters names).

Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/wlags49_h2/wl_sysfs.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/wlags49_h2/wl_sysfs.h b/drivers/staging/wlags49_h2/wl_sysfs.h
index 6d96d03cf490..fa658c38001e 100644
--- a/drivers/staging/wlags49_h2/wl_sysfs.h
+++ b/drivers/staging/wlags49_h2/wl_sysfs.h
@@ -2,6 +2,6 @@
 extern void register_wlags_sysfs(struct net_device *);
 extern void unregister_wlags_sysfs(struct net_device *);
 #else
-static void register_wlags_sysfs(struct net_device *) { return; };
-static void unregister_wlags_sysfs(struct net_device *) { return; };
+static inline void register_wlags_sysfs(struct net_device *net) { }
+static inline void unregister_wlags_sysfs(struct net_device *net) { }
 #endif
-- 
cgit v1.2.3-55-g7522


From f84f927e081e16e1a4fcd92d28c3bc81c7b1864b Mon Sep 17 00:00:00 2001
From: Larry Finger
Date: Mon, 7 Jun 2010 12:00:44 -0500
Subject: Staging: rtl8187se: Fix compile warnings in 2.6.35-rc2

In commit bbfb5652, the spacing in the definitions of eqMacAddr and cpMacAddr
in drivers/staging/rtl8187se/r8180_core.c were changed to conform to kernel
standards. These definitions were duplicates of lines found in
drivers/staging/rtl8187se/ieee80211/dot11d.h. Once the change was made, the
following warnings were emitted:

  CC [M]  drivers/staging/rtl8187se/r8180_core.o
drivers/staging/rtl8187se/r8180_core.c:69:0: warning: "eqMacAddr" redefined
drivers/staging/rtl8187se/ieee80211/dot11d.h:39:0: note: this is the location of the previous definition
drivers/staging/rtl8187se/r8180_core.c:70:0: warning: "cpMacAddr" redefined
drivers/staging/rtl8187se/ieee80211/dot11d.h:40:0: note: this is the location of the previous definition

The fix is to keep only the difinition in the header file.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/rtl8187se/r8180_core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index dacefea78113..49ab9fa9ffa7 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -66,8 +66,6 @@ static int hwseqnum = 0;
 static int hwwep = 0;
 static int channels = 0x3fff;
 
-#define eqMacAddr(a, b)		(((a)[0] == (b)[0] && (a)[1] == (b)[1] && (a)[2] == (b)[2] && (a)[3] == (b)[3] && (a)[4] == (b)[4] && (a)[5] == (b)[5]) ? 1 : 0)
-#define cpMacAddr(des, src)		((des)[0] = (src)[0], (des)[1] = (src)[1], (des)[2] = (src)[2], (des)[3] = (src)[3], (des)[4] = (src)[4], (des)[5] = (src)[5])
 MODULE_LICENSE("GPL");
 MODULE_DEVICE_TABLE(pci, rtl8180_pci_id_tbl);
 MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
-- 
cgit v1.2.3-55-g7522


From 60b42de30ad6fb131dc8e9dbd11a8a9ea0ab394c Mon Sep 17 00:00:00 2001
From: Florian Schilhabel
Date: Tue, 8 Jun 2010 03:46:26 +0200
Subject: Staging: rtl8192su: remove device ids

This patch removes some device-ids.
The list of unsupported devices was extracted from realteks driver package.
removed IDs are:
(0x0bda, 0x8192)
(0x0bda, 0x8709)
(0x07aa, 0x0043)
(0x050d, 0x805E)
(0x0df6, 0x0031)
(0x1740, 0x9201)
(0x2001, 0x3301)
(0x5a57, 0x0290)
These devices are _not_ rtl819su based.

Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/rtl8192su/r8192U_core.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c
index 447d6474a70c..06b2b978ad5f 100644
--- a/drivers/staging/rtl8192su/r8192U_core.c
+++ b/drivers/staging/rtl8192su/r8192U_core.c
@@ -114,22 +114,8 @@ u32 rt_global_debug_component = \
 static const struct usb_device_id rtl8192_usb_id_tbl[] = {
 	/* Realtek */
 	{USB_DEVICE(0x0bda, 0x8171)},
-	{USB_DEVICE(0x0bda, 0x8192)},
-	{USB_DEVICE(0x0bda, 0x8709)},
-	/* Corega */
-	{USB_DEVICE(0x07aa, 0x0043)},
-	/* Belkin */
-	{USB_DEVICE(0x050d, 0x805E)},
 	{USB_DEVICE(0x050d, 0x815F)}, /* Belkin F5D8053 v6 */
-	/* Sitecom */
-	{USB_DEVICE(0x0df6, 0x0031)},
 	{USB_DEVICE(0x0df6, 0x004b)},	/* WL-349 */
-	/* EnGenius */
-	{USB_DEVICE(0x1740, 0x9201)},
-	/* Dlink */
-	{USB_DEVICE(0x2001, 0x3301)},
-	/* Zinwell */
-	{USB_DEVICE(0x5a57, 0x0290)},
 	/* Guillemot */
 	{USB_DEVICE(0x06f8, 0xe031)},
 	//92SU
-- 
cgit v1.2.3-55-g7522


From 15d93ed070125d51693f102a0f94045dcaf30d9b Mon Sep 17 00:00:00 2001
From: Florian Schilhabel
Date: Tue, 8 Jun 2010 03:47:13 +0200
Subject: Staging: rtl8192su: add device ids

This patch adds some device ids.
The list of supported devices was extracted from realteks driver package.
(0x050d, 0x815F) and (0x0df6, 0x004b) are not in the official list of
supported devices  and may not work correctly.
In case of problems with these, they should probably be removed from the list.

Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/rtl8192su/r8192U_core.c | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c
index 06b2b978ad5f..f1d852becf58 100644
--- a/drivers/staging/rtl8192su/r8192U_core.c
+++ b/drivers/staging/rtl8192su/r8192U_core.c
@@ -112,14 +112,30 @@ u32 rt_global_debug_component = \
 #define CAM_CONTENT_COUNT 8
 
 static const struct usb_device_id rtl8192_usb_id_tbl[] = {
-	/* Realtek */
-	{USB_DEVICE(0x0bda, 0x8171)},
-	{USB_DEVICE(0x050d, 0x815F)}, /* Belkin F5D8053 v6 */
-	{USB_DEVICE(0x0df6, 0x004b)},	/* WL-349 */
-	/* Guillemot */
-	{USB_DEVICE(0x06f8, 0xe031)},
-	//92SU
+	{USB_DEVICE(0x0bda, 0x8171)}, /* Realtek */
 	{USB_DEVICE(0x0bda, 0x8172)},
+	{USB_DEVICE(0x0bda, 0x8173)},
+	{USB_DEVICE(0x0bda, 0x8174)},
+	{USB_DEVICE(0x0bda, 0x8712)},
+	{USB_DEVICE(0x0bda, 0x8713)},
+	{USB_DEVICE(0x07aa, 0x0047)},
+	{USB_DEVICE(0x07d1, 0x3303)},
+	{USB_DEVICE(0x07d1, 0x3302)},
+	{USB_DEVICE(0x07d1, 0x3300)},
+	{USB_DEVICE(0x1740, 0x9603)},
+	{USB_DEVICE(0x1740, 0x9605)},
+	{USB_DEVICE(0x050d, 0x815F)},
+	{USB_DEVICE(0x06f8, 0xe031)},
+	{USB_DEVICE(0x7392, 0x7611)},
+	{USB_DEVICE(0x7392, 0x7612)},
+	{USB_DEVICE(0x7392, 0x7622)},
+	{USB_DEVICE(0x0DF6, 0x0045)},
+	{USB_DEVICE(0x0E66, 0x0015)},
+	{USB_DEVICE(0x0E66, 0x0016)},
+	{USB_DEVICE(0x0b05, 0x1786)},
+	/* these are not in the official list */
+	{USB_DEVICE(0x050d, 0x815F)}, /* Belkin F5D8053 v6 */
+	{USB_DEVICE(0x0df6, 0x004b)}, /* WL-349 */
 	{}
 };
 
-- 
cgit v1.2.3-55-g7522


From 821e67a135d8773c8e9c0b97088b2e64c3d0d631 Mon Sep 17 00:00:00 2001
From: Dan Carpenter
Date: Mon, 21 Jun 2010 08:49:25 +0200
Subject: Staging: comedi: fix read past end of array in cb_pcidda_attach()

There are only 6 elements in the cb_pcidda_boards[] array so the
original code read past the end.  After this change nothing uses N_BOARDS
so I removed the definition.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/comedi/drivers/cb_pcidda.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c
index 81829d6fd287..c374bee25068 100644
--- a/drivers/staging/comedi/drivers/cb_pcidda.c
+++ b/drivers/staging/comedi/drivers/cb_pcidda.c
@@ -52,7 +52,6 @@ Please report success/failure with other different cards to
 #include "8255.h"
 
 #define PCI_VENDOR_ID_CB	0x1307	/*  PCI vendor number of ComputerBoards */
-#define N_BOARDS	10	/*  Number of boards in cb_pcidda_boards */
 #define EEPROM_SIZE	128	/*  number of entries in eeprom */
 #define MAX_AO_CHANNELS 8	/*  maximum number of ao channels for supported boards */
 
@@ -307,7 +306,7 @@ static int cb_pcidda_attach(struct comedi_device *dev,
 					continue;
 				}
 			}
-			for (index = 0; index < N_BOARDS; index++) {
+			for (index = 0; index < ARRAY_SIZE(cb_pcidda_boards); index++) {
 				if (cb_pcidda_boards[index].device_id ==
 				    pcidev->device) {
 					goto found;
-- 
cgit v1.2.3-55-g7522


From 9674e57a4fa9686c3ef4df5c194a4c445745d03f Mon Sep 17 00:00:00 2001
From: Ozan Çağlayan
Date: Mon, 21 Jun 2010 14:00:56 +0300
Subject: Staging: rt2870: add device id for Zyxel NWD-270N

Add device id for Zyxel NWD-270N USB dongle.

Signed-off-by: Ozan Çağlayan <ozan@pardus.org.tr>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/rt2860/usb_main_dev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/rt2860/usb_main_dev.c b/drivers/staging/rt2860/usb_main_dev.c
index b740662d095a..674769d2b59b 100644
--- a/drivers/staging/rt2860/usb_main_dev.c
+++ b/drivers/staging/rt2860/usb_main_dev.c
@@ -77,6 +77,7 @@ struct usb_device_id rtusb_usb_id[] = {
 	{USB_DEVICE(0x083A, 0x7522)},	/* Arcadyan */
 	{USB_DEVICE(0x0CDE, 0x0022)},	/* ZCOM */
 	{USB_DEVICE(0x0586, 0x3416)},	/* Zyxel */
+	{USB_DEVICE(0x0586, 0x341a)},	/* Zyxel NWD-270N */
 	{USB_DEVICE(0x0CDE, 0x0025)},	/* Zyxel */
 	{USB_DEVICE(0x1740, 0x9701)},	/* EnGenius */
 	{USB_DEVICE(0x1740, 0x9702)},	/* EnGenius */
-- 
cgit v1.2.3-55-g7522


From 081a52924623df3e550be8cd124b1416fc77b4f1 Mon Sep 17 00:00:00 2001
From: Ben Hutchings
Date: Fri, 25 Jun 2010 01:35:01 +0100
Subject: Staging: rtl8192s_usb: Remove duplicate device ID

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/rtl8192su/r8192U_core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c
index f1d852becf58..1b6890611fb6 100644
--- a/drivers/staging/rtl8192su/r8192U_core.c
+++ b/drivers/staging/rtl8192su/r8192U_core.c
@@ -134,7 +134,6 @@ static const struct usb_device_id rtl8192_usb_id_tbl[] = {
 	{USB_DEVICE(0x0E66, 0x0016)},
 	{USB_DEVICE(0x0b05, 0x1786)},
 	/* these are not in the official list */
-	{USB_DEVICE(0x050d, 0x815F)}, /* Belkin F5D8053 v6 */
 	{USB_DEVICE(0x0df6, 0x004b)}, /* WL-349 */
 	{}
 };
-- 
cgit v1.2.3-55-g7522


From e10ac155828324c475637827d4c3525012391f02 Mon Sep 17 00:00:00 2001
From: Ben Hutchings
Date: Fri, 25 Jun 2010 01:35:49 +0100
Subject: Staging: rtl8192u_usb: Add LG device ID 043e:7a01

Add another device ID as listed in the vendor driver version
0003.0825.2009.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
 drivers/staging/rtl8192u/r8192U_core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 2bede271a2f0..f38472c2e75c 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -121,6 +121,8 @@ static const struct usb_device_id rtl8192_usb_id_tbl[] = {
 	{USB_DEVICE(0x2001, 0x3301)},
 	/* Zinwell */
 	{USB_DEVICE(0x5a57, 0x0290)},
+	/* LG */
+	{USB_DEVICE(0x043e, 0x7a01)},
 	{}
 };
 
-- 
cgit v1.2.3-55-g7522


From b70f4e85bfc4d7000036355b714a92d5c574f1be Mon Sep 17 00:00:00 2001
From: Tony Luck
Date: Wed, 30 Jun 2010 10:46:16 -0700
Subject: [IA64] Fix spinaphore down_spin()

Typo in down_spin() meant it only read the low 32 bits of the
"serve" value, instead of the full 64 bits. This results in the
system hanging when the values in ticket/serve get larger than
32-bits. A big enough system running the right test can hit this
in a just a few hours.

Broken since 883a3acf5b0d4782ac35981227a0d094e8b44850
    [IA64] Re-implement spinaphores using ticket lock concepts

Reported via IRC by Bjorn Helgaas

Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 arch/ia64/mm/tlb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
index 5dfd916e9ea6..7b3cdc6c6d91 100644
--- a/arch/ia64/mm/tlb.c
+++ b/arch/ia64/mm/tlb.c
@@ -121,7 +121,7 @@ static inline void down_spin(struct spinaphore *ss)
 	ia64_invala();
 
 	for (;;) {
-		asm volatile ("ld4.c.nc %0=[%1]" : "=r"(serve) : "r"(&ss->serve) : "memory");
+		asm volatile ("ld8.c.nc %0=[%1]" : "=r"(serve) : "r"(&ss->serve) : "memory");
 		if (time_before(t, serve))
 			return;
 		cpu_relax();
-- 
cgit v1.2.3-55-g7522


From 7a0ea09ad5352efce8fe79ed853150449903b9f5 Mon Sep 17 00:00:00 2001
From: Michal Hocko
Date: Wed, 30 Jun 2010 09:51:19 +0200
Subject: futex: futex_find_get_task remove credentails check

futex_find_get_task is currently used (through lookup_pi_state) from two
contexts, futex_requeue and futex_lock_pi_atomic.  None of the paths
looks it needs the credentials check, though.  Different (e)uids
shouldn't matter at all because the only thing that is important for
shared futex is the accessibility of the shared memory.

The credentail check results in glibc assert failure or process hang (if
glibc is compiled without assert support) for shared robust pthread
mutex with priority inheritance if a process tries to lock already held
lock owned by a process with a different euid:

pthread_mutex_lock.c:312: __pthread_mutex_lock_full: Assertion `(-(e)) != 3 || !robust' failed.

The problem is that futex_lock_pi_atomic which is called when we try to
lock already held lock checks the current holder (tid is stored in the
futex value) to get the PI state.  It uses lookup_pi_state which in turn
gets task struct from futex_find_get_task.  ESRCH is returned either
when the task is not found or if credentials check fails.

futex_lock_pi_atomic simply returns if it gets ESRCH.  glibc code,
however, doesn't expect that robust lock returns with ESRCH because it
should get either success or owner died.

Signed-off-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Darren Hart <dvhltc@us.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/futex.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/kernel/futex.c b/kernel/futex.c
index e7a35f1039e7..6a3a5fa1526d 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -429,20 +429,11 @@ static void free_pi_state(struct futex_pi_state *pi_state)
 static struct task_struct * futex_find_get_task(pid_t pid)
 {
 	struct task_struct *p;
-	const struct cred *cred = current_cred(), *pcred;
 
 	rcu_read_lock();
 	p = find_task_by_vpid(pid);
-	if (!p) {
-		p = ERR_PTR(-ESRCH);
-	} else {
-		pcred = __task_cred(p);
-		if (cred->euid != pcred->euid &&
-		    cred->euid != pcred->uid)
-			p = ERR_PTR(-ESRCH);
-		else
-			get_task_struct(p);
-	}
+	if (p)
+		get_task_struct(p);
 
 	rcu_read_unlock();
 
@@ -564,8 +555,8 @@ lookup_pi_state(u32 uval, struct futex_hash_bucket *hb,
 	if (!pid)
 		return -ESRCH;
 	p = futex_find_get_task(pid);
-	if (IS_ERR(p))
-		return PTR_ERR(p);
+	if (!p)
+		return -ESRCH;
 
 	/*
 	 * We need to look at the task state flags to figure out,
-- 
cgit v1.2.3-55-g7522


From 5e9772b95ba848516b2c76c11cf6f4aa4aa232a5 Mon Sep 17 00:00:00 2001
From: Jes Sorensen
Date: Wed, 30 Jun 2010 15:37:38 +0200
Subject: Add mdr as maintainer of qla1280 driver.

As discussed with Mike Reed, add him as the maintainer of the qla1280
driver as I no longer have any hardware and he is actively looking
after it.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 MAINTAINERS | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 7157311eeb30..7642365ed6d2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4630,6 +4630,12 @@ M:	Robert Jarzmik <robert.jarzmik@free.fr>
 L:	rtc-linux@googlegroups.com
 S:	Maintained
 
+QLOGIC QLA1280 SCSI DRIVER
+M:	Michael Reed <mdr@sgi.com>
+L:	linux-scsi@vger.kernel.org
+S:	Maintained
+F:	drivers/scsi/qla1280.[ch]
+
 QLOGIC QLA2XXX FC-SCSI DRIVER
 M:	Andrew Vasquez <andrew.vasquez@qlogic.com>
 M:	linux-driver@qlogic.com
-- 
cgit v1.2.3-55-g7522


From 0888e883ea5ff8fac27e813256d6c1eaede5a234 Mon Sep 17 00:00:00 2001
From: Alex Deucher
Date: Sat, 12 Jun 2010 11:50:13 -0400
Subject: drm/radeon/kms: fix bandwidth calculation when sideport is present

Fixes fdo bug 27529:
https://bugs.freedesktop.org/show_bug.cgi?id=27529

Reported-by: steckdenis@yahoo.fr
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/rs690.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index bcc33195ebc2..64b94a815a6d 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -228,10 +228,6 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
 	fixed20_12 a, b, c;
 	fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
 	fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
-	/* FIXME: detect IGP with sideport memory, i don't think there is any
-	 * such product available
-	 */
-	bool sideport = false;
 
 	if (!crtc->base.enabled) {
 		/* FIXME: wouldn't it better to set priority mark to maximum */
@@ -300,7 +296,7 @@ void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
 
 	/* Maximun bandwidth is the minimun bandwidth of all component */
 	rdev->pm.max_bandwidth = rdev->pm.core_bandwidth;
-	if (sideport) {
+	if (rdev->mc.igp_sideport_enabled) {
 		if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
 			rdev->pm.sideport_bandwidth.full)
 			rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth;
-- 
cgit v1.2.3-55-g7522


From 09bdf591f4724c7d0328d4d7b8808492addb5a28 Mon Sep 17 00:00:00 2001
From: Cedric Godin
Date: Fri, 11 Jun 2010 14:40:56 -0400
Subject: drm/radeon/kms: fix dpms state on resume

When suspending, we turn the display hw off, at resume the screen will stay black.
This patch turn it on. Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=16180

Signed-off-by: Cedric Godin <cedric.godin@skynet.be>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_device.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index f10faed21567..5f317317aba2 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -779,6 +779,7 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
 
 int radeon_resume_kms(struct drm_device *dev)
 {
+	struct drm_connector *connector;
 	struct radeon_device *rdev = dev->dev_private;
 
 	if (rdev->powered_down)
@@ -797,6 +798,12 @@ int radeon_resume_kms(struct drm_device *dev)
 	radeon_resume(rdev);
 	radeon_pm_resume(rdev);
 	radeon_restore_bios_scratch_regs(rdev);
+
+	/* turn on display hw */
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
+	}
+
 	radeon_fbdev_set_suspend(rdev, 0);
 	release_console_sem();
 
-- 
cgit v1.2.3-55-g7522


From a5f798ce2b9de4b14c46cb68d58c488dc1b8e215 Mon Sep 17 00:00:00 2001
From: Alex Deucher
Date: Thu, 10 Jun 2010 17:06:01 -0400
Subject: drm/radeon/kms: fix DP after DPMS cycle

The transmitter needs to be enabled before the link is trained.

Reported-By: Lars Doelle <lars.doelle@on-line.de>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_encoders.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c
index 1ebb100015b7..e0b30b264c28 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -1072,6 +1072,8 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode)
 	if (is_dig) {
 		switch (mode) {
 		case DRM_MODE_DPMS_ON:
+			if (!ASIC_IS_DCE4(rdev))
+				atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
 			if (atombios_get_encoder_mode(encoder) == ATOM_ENCODER_MODE_DP) {
 				struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 
@@ -1079,8 +1081,6 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode)
 				if (ASIC_IS_DCE4(rdev))
 					atombios_dig_encoder_setup(encoder, ATOM_ENCODER_CMD_DP_VIDEO_ON);
 			}
-			if (!ASIC_IS_DCE4(rdev))
-				atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
 			break;
 		case DRM_MODE_DPMS_STANDBY:
 		case DRM_MODE_DPMS_SUSPEND:
-- 
cgit v1.2.3-55-g7522


From b829e011f6f9eed8c4dd41eaf02bdbb3a3ad837f Mon Sep 17 00:00:00 2001
From: Adam Jackson
Date: Thu, 10 Jun 2010 13:33:26 -0400
Subject: drm/fb: Fix video= mode computation

Reduced blanking is valid only when doing CVT modes.  Also, generate GTF
modes unless CVT was requested; CVT devices are required to support GTF,
but the reverse is not true.

[airlied: fix typo]

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/drm_fb_helper.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 08c4c926e65f..1f2cc6b09623 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -146,7 +146,7 @@ static bool drm_fb_helper_connector_parse_command_line(struct drm_fb_helper_conn
 				cvt = 1;
 			break;
 		case 'R':
-			if (!cvt)
+			if (cvt)
 				rb = 1;
 			break;
 		case 'm':
@@ -1024,11 +1024,18 @@ static struct drm_display_mode *drm_pick_cmdline_mode(struct drm_fb_helper_conne
 	}
 
 create_mode:
-	mode = drm_cvt_mode(fb_helper_conn->connector->dev, cmdline_mode->xres,
-			    cmdline_mode->yres,
-			    cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60,
-			    cmdline_mode->rb, cmdline_mode->interlace,
-			    cmdline_mode->margins);
+	if (cmdline_mode->cvt)
+		mode = drm_cvt_mode(fb_helper_conn->connector->dev,
+				    cmdline_mode->xres, cmdline_mode->yres,
+				    cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60,
+				    cmdline_mode->rb, cmdline_mode->interlace,
+				    cmdline_mode->margins);
+	else
+		mode = drm_gtf_mode(fb_helper_conn->connector->dev,
+				    cmdline_mode->xres, cmdline_mode->yres,
+				    cmdline_mode->refresh_specified ? cmdline_mode->refresh : 60,
+				    cmdline_mode->interlace,
+				    cmdline_mode->margins);
 	drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
 	list_add(&mode->head, &fb_helper_conn->connector->modes);
 	return mode;
-- 
cgit v1.2.3-55-g7522


From 76a7142a083434fe55b14f01aa2624733fea39b2 Mon Sep 17 00:00:00 2001
From: Dave Airlie
Date: Fri, 11 Jun 2010 01:09:05 -0400
Subject: drm/radeon: add fake RN50 table for powerpc

This works well enough on a js21, but it would be nice if IBM could supply
more tables for the later Power6/7 machines.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_combios.c | 32 ++++++++++++++++++++++++++++++++
 drivers/gpu/drm/radeon/radeon_mode.h    |  1 +
 2 files changed, 33 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 1bee2f9e24a5..08e156a7e4d4 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -1411,6 +1411,11 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
 			rdev->mode_info.connector_table = CT_IMAC_G5_ISIGHT;
 		} else
 #endif /* CONFIG_PPC_PMAC */
+#ifdef CONFIG_PPC64
+		if (ASIC_IS_RN50(rdev))
+			rdev->mode_info.connector_table = CT_RN50_POWER;
+		else
+#endif
 			rdev->mode_info.connector_table = CT_GENERIC;
 	}
 
@@ -1853,6 +1858,33 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
 					    CONNECTOR_OBJECT_ID_SVIDEO,
 					    &hpd);
 		break;
+	case CT_RN50_POWER:
+		DRM_INFO("Connector Table: %d (rn50-power)\n",
+			 rdev->mode_info.connector_table);
+		/* VGA - primary dac */
+		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_VGA_DDC);
+		hpd.hpd = RADEON_HPD_NONE;
+		radeon_add_legacy_encoder(dev,
+					  radeon_get_encoder_id(dev,
+								ATOM_DEVICE_CRT1_SUPPORT,
+								1),
+					  ATOM_DEVICE_CRT1_SUPPORT);
+		radeon_add_legacy_connector(dev, 0, ATOM_DEVICE_CRT1_SUPPORT,
+					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
+					    CONNECTOR_OBJECT_ID_VGA,
+					    &hpd);
+		ddc_i2c = combios_setup_i2c_bus(rdev, RADEON_GPIO_CRT2_DDC);
+		hpd.hpd = RADEON_HPD_NONE;
+		radeon_add_legacy_encoder(dev,
+					  radeon_get_encoder_id(dev,
+								ATOM_DEVICE_CRT2_SUPPORT,
+								2),
+					  ATOM_DEVICE_CRT2_SUPPORT);
+		radeon_add_legacy_connector(dev, 1, ATOM_DEVICE_CRT2_SUPPORT,
+					    DRM_MODE_CONNECTOR_VGA, &ddc_i2c,
+					    CONNECTOR_OBJECT_ID_VGA,
+					    &hpd);
+		break;
 	default:
 		DRM_INFO("Connector table: %d (invalid)\n",
 			 rdev->mode_info.connector_table);
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 67358baf28b2..95696aa57ac8 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -206,6 +206,7 @@ enum radeon_connector_table {
 	CT_MINI_INTERNAL,
 	CT_IMAC_G5_ISIGHT,
 	CT_EMAC,
+	CT_RN50_POWER,
 };
 
 enum radeon_dvo_chip {
-- 
cgit v1.2.3-55-g7522


From f9da52d54eb0e8822b5e7f32ab1cfa6522533d6e Mon Sep 17 00:00:00 2001
From: Roland Scheidegger
Date: Sat, 12 Jun 2010 12:12:37 -0400
Subject: drm/radeon/kms: CS checker texture fixes for r1xx/r2xx/r3xx

fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28459

agd5f: apply to r1xx/r2xx as well.

Signed-off-by: Roland Scheidegger <sroland@vmware.com>
Cc: stable@kernel.org
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/r100.c | 3 +++
 drivers/gpu/drm/radeon/r200.c | 3 +++
 drivers/gpu/drm/radeon/r300.c | 5 +++++
 3 files changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 1930db6d1771..d524efd9a059 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -1628,6 +1628,7 @@ static int r100_packet0_check(struct radeon_cs_parser *p,
 		case RADEON_TXFORMAT_RGB332:
 		case RADEON_TXFORMAT_Y8:
 			track->textures[i].cpp = 1;
+			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
 			break;
 		case RADEON_TXFORMAT_AI88:
 		case RADEON_TXFORMAT_ARGB1555:
@@ -1639,12 +1640,14 @@ static int r100_packet0_check(struct radeon_cs_parser *p,
 		case RADEON_TXFORMAT_LDUDV655:
 		case RADEON_TXFORMAT_DUDV88:
 			track->textures[i].cpp = 2;
+			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
 			break;
 		case RADEON_TXFORMAT_ARGB8888:
 		case RADEON_TXFORMAT_RGBA8888:
 		case RADEON_TXFORMAT_SHADOW32:
 		case RADEON_TXFORMAT_LDUDUV8888:
 			track->textures[i].cpp = 4;
+			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
 			break;
 		case RADEON_TXFORMAT_DXT1:
 			track->textures[i].cpp = 1;
diff --git a/drivers/gpu/drm/radeon/r200.c b/drivers/gpu/drm/radeon/r200.c
index 85617c311212..a03f8939f327 100644
--- a/drivers/gpu/drm/radeon/r200.c
+++ b/drivers/gpu/drm/radeon/r200.c
@@ -450,6 +450,7 @@ int r200_packet0_check(struct radeon_cs_parser *p,
 		case R200_TXFORMAT_RGB332:
 		case R200_TXFORMAT_Y8:
 			track->textures[i].cpp = 1;
+			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
 			break;
 		case R200_TXFORMAT_AI88:
 		case R200_TXFORMAT_ARGB1555:
@@ -461,6 +462,7 @@ int r200_packet0_check(struct radeon_cs_parser *p,
 		case R200_TXFORMAT_DVDU88:
 		case R200_TXFORMAT_AVYU4444:
 			track->textures[i].cpp = 2;
+			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
 			break;
 		case R200_TXFORMAT_ARGB8888:
 		case R200_TXFORMAT_RGBA8888:
@@ -468,6 +470,7 @@ int r200_packet0_check(struct radeon_cs_parser *p,
 		case R200_TXFORMAT_BGR111110:
 		case R200_TXFORMAT_LDVDU8888:
 			track->textures[i].cpp = 4;
+			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
 			break;
 		case R200_TXFORMAT_DXT1:
 			track->textures[i].cpp = 1;
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index b2f9efe2897c..7e81db5eb804 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -881,6 +881,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 		case R300_TX_FORMAT_Y4X4:
 		case R300_TX_FORMAT_Z3Y3X2:
 			track->textures[i].cpp = 1;
+			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
 			break;
 		case R300_TX_FORMAT_X16:
 		case R300_TX_FORMAT_Y8X8:
@@ -892,6 +893,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 		case R300_TX_FORMAT_B8G8_B8G8:
 		case R300_TX_FORMAT_G8R8_G8B8:
 			track->textures[i].cpp = 2;
+			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
 			break;
 		case R300_TX_FORMAT_Y16X16:
 		case R300_TX_FORMAT_Z11Y11X10:
@@ -902,14 +904,17 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 		case R300_TX_FORMAT_FL_I32:
 		case 0x1e:
 			track->textures[i].cpp = 4;
+			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
 			break;
 		case R300_TX_FORMAT_W16Z16Y16X16:
 		case R300_TX_FORMAT_FL_R16G16B16A16:
 		case R300_TX_FORMAT_FL_I32A32:
 			track->textures[i].cpp = 8;
+			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
 			break;
 		case R300_TX_FORMAT_FL_R32G32B32A32:
 			track->textures[i].cpp = 16;
+			track->textures[i].compress_format = R100_TRACK_COMP_NONE;
 			break;
 		case R300_TX_FORMAT_DXT1:
 			track->textures[i].cpp = 1;
-- 
cgit v1.2.3-55-g7522


From 688acaa2897462e4c5e2482496e2868db0760809 Mon Sep 17 00:00:00 2001
From: Roland Scheidegger
Date: Sat, 12 Jun 2010 13:31:10 -0400
Subject: drm/radeon/r200: handle more hw tex coord types

Code did not handle projected 2d and depth coordinates, meaning potentially
set 3d or cube special handling might stick.
(Not sure what depth coord actually does, but I guess handling it
like a normal coordinate is the right thing to do.)
Might be related to https://bugs.freedesktop.org/show_bug.cgi?id=26428

Signed-off-by: sroland@vmware.com
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/r200.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/radeon/r200.c b/drivers/gpu/drm/radeon/r200.c
index a03f8939f327..0266d72e0a4c 100644
--- a/drivers/gpu/drm/radeon/r200.c
+++ b/drivers/gpu/drm/radeon/r200.c
@@ -415,6 +415,8 @@ int r200_packet0_check(struct radeon_cs_parser *p,
 		/* 2D, 3D, CUBE */
 		switch (tmp) {
 		case 0:
+		case 3:
+		case 4:
 		case 5:
 		case 6:
 		case 7:
-- 
cgit v1.2.3-55-g7522


From 37cf6b03f9f28c62dafb0b9ce5f1ba29c8baffa9 Mon Sep 17 00:00:00 2001
From: Roland Scheidegger
Date: Sat, 12 Jun 2010 13:31:11 -0400
Subject: drm/radeon/r100/r200: fix calculation of compressed cube maps

This needs similar handling to other compressed textures.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=26428

Signed-off-by: sroland@vmware.com
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/r100.c | 58 +++++++++++++++++++++++--------------------
 1 file changed, 31 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index d524efd9a059..3970e62eaab8 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -3158,33 +3158,6 @@ static inline void r100_cs_track_texture_print(struct r100_cs_track_texture *t)
 	DRM_ERROR("compress format            %d\n", t->compress_format);
 }
 
-static int r100_cs_track_cube(struct radeon_device *rdev,
-			      struct r100_cs_track *track, unsigned idx)
-{
-	unsigned face, w, h;
-	struct radeon_bo *cube_robj;
-	unsigned long size;
-
-	for (face = 0; face < 5; face++) {
-		cube_robj = track->textures[idx].cube_info[face].robj;
-		w = track->textures[idx].cube_info[face].width;
-		h = track->textures[idx].cube_info[face].height;
-
-		size = w * h;
-		size *= track->textures[idx].cpp;
-
-		size += track->textures[idx].cube_info[face].offset;
-
-		if (size > radeon_bo_size(cube_robj)) {
-			DRM_ERROR("Cube texture offset greater than object size %lu %lu\n",
-				  size, radeon_bo_size(cube_robj));
-			r100_cs_track_texture_print(&track->textures[idx]);
-			return -1;
-		}
-	}
-	return 0;
-}
-
 static int r100_track_compress_size(int compress_format, int w, int h)
 {
 	int block_width, block_height, block_bytes;
@@ -3215,6 +3188,37 @@ static int r100_track_compress_size(int compress_format, int w, int h)
 	return sz;
 }
 
+static int r100_cs_track_cube(struct radeon_device *rdev,
+			      struct r100_cs_track *track, unsigned idx)
+{
+	unsigned face, w, h;
+	struct radeon_bo *cube_robj;
+	unsigned long size;
+	unsigned compress_format = track->textures[idx].compress_format;
+
+	for (face = 0; face < 5; face++) {
+		cube_robj = track->textures[idx].cube_info[face].robj;
+		w = track->textures[idx].cube_info[face].width;
+		h = track->textures[idx].cube_info[face].height;
+
+		if (compress_format) {
+			size = r100_track_compress_size(compress_format, w, h);
+		} else
+			size = w * h;
+		size *= track->textures[idx].cpp;
+
+		size += track->textures[idx].cube_info[face].offset;
+
+		if (size > radeon_bo_size(cube_robj)) {
+			DRM_ERROR("Cube texture offset greater than object size %lu %lu\n",
+				  size, radeon_bo_size(cube_robj));
+			r100_cs_track_texture_print(&track->textures[idx]);
+			return -1;
+		}
+	}
+	return 0;
+}
+
 static int r100_cs_track_texture_check(struct radeon_device *rdev,
 				       struct r100_cs_track *track)
 {
-- 
cgit v1.2.3-55-g7522


From 7c2a9acf856f150a9fc3efbaa0be44f97c30f6ca Mon Sep 17 00:00:00 2001
From: Jerome Glisse
Date: Wed, 16 Jun 2010 10:45:22 +0200
Subject: drm/ttm: non pooled page allocation should have GFP_USER set

Non pooled page allocation should have GFP_USER set so allocation
can wait and reclaim page from other process (ie non atomic).

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/ttm/ttm_page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index ef910694bd63..2f047577b1e3 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -667,7 +667,7 @@ int ttm_get_pages(struct list_head *pages, int flags,
 {
 	struct ttm_page_pool *pool = ttm_get_pool(flags, cstate);
 	struct page *p = NULL;
-	int gfp_flags = 0;
+	int gfp_flags = GFP_USER;
 	int r;
 
 	/* set zero flag for page allocation if required */
-- 
cgit v1.2.3-55-g7522


From 4cdb82b95a48a64e5c20bffd63a549675c0d4848 Mon Sep 17 00:00:00 2001
From: Matt Turner
Date: Sat, 19 Jun 2010 14:13:45 -0400
Subject: drm/radeon/kms: return ret in cursor_set failure path

We were returning 0 in both the success and failure paths. Noticed while
investigating FDO bug 26403.

Signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_cursor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_cursor.c b/drivers/gpu/drm/radeon/radeon_cursor.c
index b7023fff89eb..4eb67c0e0996 100644
--- a/drivers/gpu/drm/radeon/radeon_cursor.c
+++ b/drivers/gpu/drm/radeon/radeon_cursor.c
@@ -194,7 +194,7 @@ unpin:
 fail:
 	drm_gem_object_unreference_unlocked(obj);
 
-	return 0;
+	return ret;
 }
 
 int radeon_crtc_cursor_move(struct drm_crtc *crtc,
-- 
cgit v1.2.3-55-g7522


From f96b35cd6f499d1219e5c1aac95f818b3e566e67 Mon Sep 17 00:00:00 2001
From: Alex Deucher
Date: Wed, 16 Jun 2010 12:24:07 -0400
Subject: drm/radeon/kms: fix typo in evergreen_gpu_init

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/evergreen.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 4b6623df3b96..38c500ee417a 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1222,11 +1222,11 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
 		ps_thread_count = 128;
 
 	sq_thread_resource_mgmt = NUM_PS_THREADS(ps_thread_count);
-	sq_thread_resource_mgmt |= NUM_VS_THREADS(((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8;
-	sq_thread_resource_mgmt |= NUM_GS_THREADS(((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8;
-	sq_thread_resource_mgmt |= NUM_ES_THREADS(((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8;
-	sq_thread_resource_mgmt_2 = NUM_HS_THREADS(((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8;
-	sq_thread_resource_mgmt_2 |= NUM_LS_THREADS(((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8;
+	sq_thread_resource_mgmt |= NUM_VS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
+	sq_thread_resource_mgmt |= NUM_GS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
+	sq_thread_resource_mgmt |= NUM_ES_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
+	sq_thread_resource_mgmt_2 = NUM_HS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
+	sq_thread_resource_mgmt_2 |= NUM_LS_THREADS((((rdev->config.evergreen.max_threads - ps_thread_count) / 6) / 8) * 8);
 
 	sq_stack_resource_mgmt_1 = NUM_PS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
 	sq_stack_resource_mgmt_1 |= NUM_VS_STACK_ENTRIES((rdev->config.evergreen.max_stack_entries * 1) / 6);
-- 
cgit v1.2.3-55-g7522


From 8b5d8dec7c85b6f1a4ae9c57500f1378d79556bc Mon Sep 17 00:00:00 2001
From: Dave Airlie
Date: Mon, 21 Jun 2010 13:31:38 +1000
Subject: drm/radeon/kms: don't read attempt to read bios from VRAM on unposted
 GPU.

Since the VGA switcheroo, we'd attempt to read the BIOS from VRAM on startup
but on some unposted cards this can cause hangs/crashes.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=28592

(further problem pointed out by agd5f on IGP systems)

Reported-by: Reilithion on #radeon
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_bios.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c
index fbba938f8048..2c9213739999 100644
--- a/drivers/gpu/drm/radeon/radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -48,6 +48,10 @@ static bool igp_read_bios_from_vram(struct radeon_device *rdev)
 	resource_size_t vram_base;
 	resource_size_t size = 256 * 1024; /* ??? */
 
+	if (!(rdev->flags & RADEON_IS_IGP))
+		if (!radeon_card_posted(rdev))
+			return false;
+
 	rdev->bios = NULL;
 	vram_base = drm_get_resource_start(rdev->ddev, 0);
 	bios = ioremap(vram_base, size);
-- 
cgit v1.2.3-55-g7522


From 2ff776cf77f1837a0397bc876e086e8a54274b09 Mon Sep 17 00:00:00 2001
From: Alex Deucher
Date: Tue, 8 Jun 2010 19:44:36 -0400
Subject: drm/radeon/kms: disable frac fb dividers for rs6xx

Should fix fdo bug 28331:
https://bugs.freedesktop.org/show_bug.cgi?id=28331

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/atombios_crtc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index f3f2827017ef..8c2d6478a221 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -498,7 +498,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 		if ((rdev->family == CHIP_RS600) ||
 		    (rdev->family == CHIP_RS690) ||
 		    (rdev->family == CHIP_RS740))
-			pll->flags |= (RADEON_PLL_USE_FRAC_FB_DIV |
+			pll->flags |= (/*RADEON_PLL_USE_FRAC_FB_DIV |*/
 				       RADEON_PLL_PREFER_CLOSEST_LOWER);
 
 		if (ASIC_IS_DCE32(rdev) && mode->clock > 200000)	/* range limits??? */
-- 
cgit v1.2.3-55-g7522


From 46fcd2b3dbf58a448b621d3d2f492a0e90223a3a Mon Sep 17 00:00:00 2001
From: Jerome Glisse
Date: Thu, 3 Jun 2010 19:34:48 +0200
Subject: drm/radeon/kms: Force HDP_NONSURF to maximum size

HDP non surface should cover the whole VRAM but we were misscomputing
the size and we endup in some case not covering the VRAM at all (if
VRAM size were > 1G). Covering more than the VRAM size shouldn't be
an issue.

Fix : https://bugs.freedesktop.org/show_bug.cgi?id=28016

[airlied: add evergreen fix]

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/evergreen.c | 2 +-
 drivers/gpu/drm/radeon/r600.c      | 2 +-
 drivers/gpu/drm/radeon/rv770.c     | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 38c500ee417a..37c7a434ed34 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -607,7 +607,7 @@ static void evergreen_mc_program(struct radeon_device *rdev)
 	WREG32(MC_VM_FB_LOCATION, tmp);
 	WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
 	WREG32(HDP_NONSURFACE_INFO, (2 << 7));
-	WREG32(HDP_NONSURFACE_SIZE, (rdev->mc.mc_vram_size - 1) | 0x3FF);
+	WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
 	if (rdev->flags & RADEON_IS_AGP) {
 		WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 16);
 		WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 16);
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 0e91871f45be..b32064dad95d 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -1097,7 +1097,7 @@ static void r600_mc_program(struct radeon_device *rdev)
 	WREG32(MC_VM_FB_LOCATION, tmp);
 	WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
 	WREG32(HDP_NONSURFACE_INFO, (2 << 7));
-	WREG32(HDP_NONSURFACE_SIZE, rdev->mc.mc_vram_size | 0x3FF);
+	WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
 	if (rdev->flags & RADEON_IS_AGP) {
 		WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 22);
 		WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 22);
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index cec536c222c5..b7fd82064922 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -224,7 +224,7 @@ static void rv770_mc_program(struct radeon_device *rdev)
 	WREG32(MC_VM_FB_LOCATION, tmp);
 	WREG32(HDP_NONSURFACE_BASE, (rdev->mc.vram_start >> 8));
 	WREG32(HDP_NONSURFACE_INFO, (2 << 7));
-	WREG32(HDP_NONSURFACE_SIZE, (rdev->mc.mc_vram_size - 1) | 0x3FF);
+	WREG32(HDP_NONSURFACE_SIZE, 0x3FFFFFFF);
 	if (rdev->flags & RADEON_IS_AGP) {
 		WREG32(MC_VM_AGP_TOP, rdev->mc.gtt_end >> 16);
 		WREG32(MC_VM_AGP_BOT, rdev->mc.gtt_start >> 16);
-- 
cgit v1.2.3-55-g7522


From b26c949755c06ec79e55a75817210083bd78fc9a Mon Sep 17 00:00:00 2001
From: Dave Airlie
Date: Wed, 23 Jun 2010 11:35:41 +1000
Subject: fb: fix colliding defines for fb flags.

When I added the flags I must have been using a 25 line terminal and missed the following flags.

The collided with flag has one user in staging despite being in-tree for 5 years.

I'm happy to push this via my drm tree unless someone really wants to do it.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Cc: stable@kernel.org
---
 include/linux/fb.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/fb.h b/include/linux/fb.h
index 907ace3a64c8..8e5a9dfb76bf 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -786,8 +786,6 @@ struct fb_tile_ops {
 #define FBINFO_MISC_USEREVENT          0x10000 /* event request
 						  from userspace */
 #define FBINFO_MISC_TILEBLITTING       0x20000 /* use tile blitting */
-#define FBINFO_MISC_FIRMWARE           0x40000 /* a replaceable firmware
-						  inited framebuffer */
 
 /* A driver may set this flag to indicate that it does want a set_par to be
  * called every time when fbcon_switch is executed. The advantage is that with
@@ -801,6 +799,8 @@ struct fb_tile_ops {
  */
 #define FBINFO_MISC_ALWAYS_SETPAR   0x40000
 
+/* where the fb is a firmware driver, and can be replaced with a proper one */
+#define FBINFO_MISC_FIRMWARE        0x80000
 /*
  * Host and GPU endianness differ.
  */
-- 
cgit v1.2.3-55-g7522


From 07bb084c9306107204ef5691d4ce6f61213af6c2 Mon Sep 17 00:00:00 2001
From: Alex Deucher
Date: Tue, 22 Jun 2010 21:58:26 -0400
Subject: drm/radeon/kms: avoid oops on mac r4xx cards

They don't have an atombios so don't attempt to use it for
eng/mem clocks.

Reported by spoonb on #radeon
fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28671

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_asic.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 87f7e2cc52d4..646f96f97c77 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -780,6 +780,13 @@ int radeon_asic_init(struct radeon_device *rdev)
 	case CHIP_R423:
 	case CHIP_RV410:
 		rdev->asic = &r420_asic;
+		/* handle macs */
+		if (rdev->bios == NULL) {
+			rdev->asic->get_engine_clock = &radeon_legacy_get_engine_clock;
+			rdev->asic->set_engine_clock = &radeon_legacy_set_engine_clock;
+			rdev->asic->get_memory_clock = &radeon_legacy_get_memory_clock;
+			rdev->asic->set_memory_clock = NULL;
+		}
 		break;
 	case CHIP_RS400:
 	case CHIP_RS480:
-- 
cgit v1.2.3-55-g7522


From 09d7e785f70e99abe4ec031c84f0a6a8b2d0be3a Mon Sep 17 00:00:00 2001
From: Alex Deucher
Date: Wed, 23 Jun 2010 18:27:11 -0400
Subject: drm/radeon/kms: fix typos in evergreen command checker

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/evergreen_cs.c     |  4 ++--
 drivers/gpu/drm/radeon/reg_srcs/evergreen | 10 +++++-----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index 64516b950891..010963d4570f 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -1197,7 +1197,7 @@ static int evergreen_packet3_check(struct radeon_cs_parser *p,
 					DRM_ERROR("bad SET_RESOURCE (tex)\n");
 					return -EINVAL;
 				}
-				ib[idx+1+(i*8)+3] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
+				ib[idx+1+(i*8)+2] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
 				if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
 					ib[idx+1+(i*8)+1] |= TEX_ARRAY_MODE(ARRAY_2D_TILED_THIN1);
 				else if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
@@ -1209,7 +1209,7 @@ static int evergreen_packet3_check(struct radeon_cs_parser *p,
 					DRM_ERROR("bad SET_RESOURCE (tex)\n");
 					return -EINVAL;
 				}
-				ib[idx+1+(i*8)+4] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
+				ib[idx+1+(i*8)+3] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
 				mipmap = reloc->robj;
 				r = evergreen_check_texture_resource(p,  idx+1+(i*8),
 						texture, mipmap);
diff --git a/drivers/gpu/drm/radeon/reg_srcs/evergreen b/drivers/gpu/drm/radeon/reg_srcs/evergreen
index b5c757f68d3c..f78fd592544d 100644
--- a/drivers/gpu/drm/radeon/reg_srcs/evergreen
+++ b/drivers/gpu/drm/radeon/reg_srcs/evergreen
@@ -80,8 +80,8 @@ evergreen 0x9400
 0x00028010 DB_RENDER_OVERRIDE2
 0x00028028 DB_STENCIL_CLEAR
 0x0002802C DB_DEPTH_CLEAR
-0x00028034 PA_SC_SCREEN_SCISSOR_BR
 0x00028030 PA_SC_SCREEN_SCISSOR_TL
+0x00028034 PA_SC_SCREEN_SCISSOR_BR
 0x0002805C DB_DEPTH_SLICE
 0x00028140 SQ_ALU_CONST_BUFFER_SIZE_PS_0
 0x00028144 SQ_ALU_CONST_BUFFER_SIZE_PS_1
@@ -460,8 +460,8 @@ evergreen 0x9400
 0x00028844 SQ_PGM_RESOURCES_PS
 0x00028848 SQ_PGM_RESOURCES_2_PS
 0x0002884C SQ_PGM_EXPORTS_PS
-0x0002885C SQ_PGM_RESOURCES_VS
-0x00028860 SQ_PGM_RESOURCES_2_VS
+0x00028860 SQ_PGM_RESOURCES_VS
+0x00028864 SQ_PGM_RESOURCES_2_VS
 0x00028878 SQ_PGM_RESOURCES_GS
 0x0002887C SQ_PGM_RESOURCES_2_GS
 0x00028890 SQ_PGM_RESOURCES_ES
@@ -469,8 +469,8 @@ evergreen 0x9400
 0x000288A8 SQ_PGM_RESOURCES_FS
 0x000288BC SQ_PGM_RESOURCES_HS
 0x000288C0 SQ_PGM_RESOURCES_2_HS
-0x000288D0 SQ_PGM_RESOURCES_LS
-0x000288D4 SQ_PGM_RESOURCES_2_LS
+0x000288D4 SQ_PGM_RESOURCES_LS
+0x000288D8 SQ_PGM_RESOURCES_2_LS
 0x000288E8 SQ_LDS_ALLOC
 0x000288EC SQ_LDS_ALLOC_PS
 0x000288F0 SQ_VTX_SEMANTIC_CLEAR
-- 
cgit v1.2.3-55-g7522


From 60a4a3e0ce0b575e8b4cb6bf39d2c40e403bdfc7 Mon Sep 17 00:00:00 2001
From: Alex Deucher
Date: Tue, 29 Jun 2010 17:03:35 -0400
Subject: drm/radeon/kms: add some missing regs to evergreen gpu init

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/evergreen.c  | 23 +++++++++++++++++++++++
 drivers/gpu/drm/radeon/evergreend.h |  3 +++
 2 files changed, 26 insertions(+)

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 37c7a434ed34..1caf625e472b 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1260,6 +1260,9 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
 	WREG32(VGT_GS_VERTEX_REUSE, 16);
 	WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
 
+	WREG32(VGT_VERTEX_REUSE_BLOCK_CNTL, 14);
+	WREG32(VGT_OUT_DEALLOC_CNTL, 16);
+
 	WREG32(CB_PERF_CTR0_SEL_0, 0);
 	WREG32(CB_PERF_CTR0_SEL_1, 0);
 	WREG32(CB_PERF_CTR1_SEL_0, 0);
@@ -1269,6 +1272,26 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
 	WREG32(CB_PERF_CTR3_SEL_0, 0);
 	WREG32(CB_PERF_CTR3_SEL_1, 0);
 
+	/* clear render buffer base addresses */
+	WREG32(CB_COLOR0_BASE, 0);
+	WREG32(CB_COLOR1_BASE, 0);
+	WREG32(CB_COLOR2_BASE, 0);
+	WREG32(CB_COLOR3_BASE, 0);
+	WREG32(CB_COLOR4_BASE, 0);
+	WREG32(CB_COLOR5_BASE, 0);
+	WREG32(CB_COLOR6_BASE, 0);
+	WREG32(CB_COLOR7_BASE, 0);
+	WREG32(CB_COLOR8_BASE, 0);
+	WREG32(CB_COLOR9_BASE, 0);
+	WREG32(CB_COLOR10_BASE, 0);
+	WREG32(CB_COLOR11_BASE, 0);
+
+	/* set the shader const cache sizes to 0 */
+	for (i = SQ_ALU_CONST_BUFFER_SIZE_PS_0; i < 0x28200; i += 4)
+		WREG32(i, 0);
+	for (i = SQ_ALU_CONST_BUFFER_SIZE_HS_0; i < 0x29000; i += 4)
+		WREG32(i, 0);
+
 	hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL);
 	WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl);
 
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h
index 79683f6b4452..a1cd621780e2 100644
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -713,6 +713,9 @@
 #define SQ_GSVS_RING_OFFSET_2				0x28930
 #define SQ_GSVS_RING_OFFSET_3				0x28934
 
+#define SQ_ALU_CONST_BUFFER_SIZE_PS_0			0x28140
+#define SQ_ALU_CONST_BUFFER_SIZE_HS_0			0x28f80
+
 #define SQ_ALU_CONST_CACHE_PS_0				0x28940
 #define SQ_ALU_CONST_CACHE_PS_1				0x28944
 #define SQ_ALU_CONST_CACHE_PS_2				0x28948
-- 
cgit v1.2.3-55-g7522


From 580b4fffbbdc3c899ee1f8189ba321bd60b48840 Mon Sep 17 00:00:00 2001
From: Dave Airlie
Date: Wed, 30 Jun 2010 13:26:11 +1000
Subject: drm/radeon: add quirk to make HP nx6125 laptop resume.

For some reason on resume, executing the BIOS scripts locks up the whole chipset, by avoiding the dynclk table the machine resumes properly and seems to function okay.

Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_combios.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 08e156a7e4d4..392bc4d68a4d 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -3051,6 +3051,14 @@ void radeon_combios_asic_init(struct drm_device *dev)
 		combios_write_ram_size(dev);
 	}
 
+	/* quirk for rs4xx HP nx6125 laptop to make it resume
+	 * - it hangs on resume inside the dynclk 1 table.
+	 */
+	if (rdev->family == CHIP_RS480 &&
+	    rdev->pdev->subsystem_vendor == 0x103c &&
+	    rdev->pdev->subsystem_device == 0x308b)
+		return;
+
 	/* DYN CLK 1 */
 	table = combios_get_table_offset(dev, COMBIOS_DYN_CLK_1_TABLE);
 	if (table)
-- 
cgit v1.2.3-55-g7522


From f892034a8ce80ed7098f667aae2eb6300e570603 Mon Sep 17 00:00:00 2001
From: Alex Deucher
Date: Wed, 30 Jun 2010 12:02:03 -0400
Subject: drm/radeon/kms/igp: fix possible divide by 0 in bandwidth code (v2)

Some IGP systems specify the system memory clock in the Firmware
table rather than the IGP info table.  Check both and make sure
we have a value system memory clock value.

v2: make sure rs690_pm_info is called on rs780/rs880 as well.

fixes a regression since 07d4190327b02ab3aaad25a2d168f79d92e8f8c2.

Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/r600.c   |  4 +++-
 drivers/gpu/drm/radeon/radeon.h |  1 +
 drivers/gpu/drm/radeon/rs690.c  | 35 +++++++++++++++++++----------------
 3 files changed, 23 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index b32064dad95d..90f28175a7bc 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -1219,8 +1219,10 @@ int r600_mc_init(struct radeon_device *rdev)
 	rdev->mc.visible_vram_size = rdev->mc.aper_size;
 	r600_vram_gtt_location(rdev, &rdev->mc);
 
-	if (rdev->flags & RADEON_IS_IGP)
+	if (rdev->flags & RADEON_IS_IGP) {
+		rs690_pm_info(rdev);
 		rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
+	}
 	radeon_update_bandwidth_info(rdev);
 	return 0;
 }
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 8e1d44ca26ec..5bbf97e26d87 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -177,6 +177,7 @@ void radeon_pm_resume(struct radeon_device *rdev);
 void radeon_combios_get_power_modes(struct radeon_device *rdev);
 void radeon_atombios_get_power_modes(struct radeon_device *rdev);
 void radeon_atom_set_voltage(struct radeon_device *rdev, u16 level);
+void rs690_pm_info(struct radeon_device *rdev);
 
 /*
  * Fences.
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index 64b94a815a6d..f4f0a61bcdce 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -79,7 +79,13 @@ void rs690_pm_info(struct radeon_device *rdev)
 			tmp.full = dfixed_const(100);
 			rdev->pm.igp_sideport_mclk.full = dfixed_const(info->info.ulBootUpMemoryClock);
 			rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp);
-			rdev->pm.igp_system_mclk.full = dfixed_const(le16_to_cpu(info->info.usK8MemoryClock));
+			if (info->info.usK8MemoryClock)
+				rdev->pm.igp_system_mclk.full = dfixed_const(le16_to_cpu(info->info.usK8MemoryClock));
+			else if (rdev->clock.default_mclk) {
+				rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk);
+				rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
+			} else
+				rdev->pm.igp_system_mclk.full = dfixed_const(400);
 			rdev->pm.igp_ht_link_clk.full = dfixed_const(le16_to_cpu(info->info.usFSBClock));
 			rdev->pm.igp_ht_link_width.full = dfixed_const(info->info.ucHTLinkWidth);
 			break;
@@ -87,34 +93,31 @@ void rs690_pm_info(struct radeon_device *rdev)
 			tmp.full = dfixed_const(100);
 			rdev->pm.igp_sideport_mclk.full = dfixed_const(info->info_v2.ulBootUpSidePortClock);
 			rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp);
-			rdev->pm.igp_system_mclk.full = dfixed_const(info->info_v2.ulBootUpUMAClock);
+			if (info->info_v2.ulBootUpUMAClock)
+				rdev->pm.igp_system_mclk.full = dfixed_const(info->info_v2.ulBootUpUMAClock);
+			else if (rdev->clock.default_mclk)
+				rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk);
+			else
+				rdev->pm.igp_system_mclk.full = dfixed_const(66700);
 			rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
 			rdev->pm.igp_ht_link_clk.full = dfixed_const(info->info_v2.ulHTLinkFreq);
 			rdev->pm.igp_ht_link_clk.full = dfixed_div(rdev->pm.igp_ht_link_clk, tmp);
 			rdev->pm.igp_ht_link_width.full = dfixed_const(le16_to_cpu(info->info_v2.usMinHTLinkWidth));
 			break;
 		default:
-			tmp.full = dfixed_const(100);
 			/* We assume the slower possible clock ie worst case */
-			/* DDR 333Mhz */
-			rdev->pm.igp_sideport_mclk.full = dfixed_const(333);
-			/* FIXME: system clock ? */
-			rdev->pm.igp_system_mclk.full = dfixed_const(100);
-			rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
-			rdev->pm.igp_ht_link_clk.full = dfixed_const(200);
+			rdev->pm.igp_sideport_mclk.full = dfixed_const(200);
+			rdev->pm.igp_system_mclk.full = dfixed_const(200);
+			rdev->pm.igp_ht_link_clk.full = dfixed_const(1000);
 			rdev->pm.igp_ht_link_width.full = dfixed_const(8);
 			DRM_ERROR("No integrated system info for your GPU, using safe default\n");
 			break;
 		}
 	} else {
-		tmp.full = dfixed_const(100);
 		/* We assume the slower possible clock ie worst case */
-		/* DDR 333Mhz */
-		rdev->pm.igp_sideport_mclk.full = dfixed_const(333);
-		/* FIXME: system clock ? */
-		rdev->pm.igp_system_mclk.full = dfixed_const(100);
-		rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
-		rdev->pm.igp_ht_link_clk.full = dfixed_const(200);
+		rdev->pm.igp_sideport_mclk.full = dfixed_const(200);
+		rdev->pm.igp_system_mclk.full = dfixed_const(200);
+		rdev->pm.igp_ht_link_clk.full = dfixed_const(1000);
 		rdev->pm.igp_ht_link_width.full = dfixed_const(8);
 		DRM_ERROR("No integrated system info for your GPU, using safe default\n");
 	}
-- 
cgit v1.2.3-55-g7522


From 3f53eb6f84545a7fc55a36657755371f42c63fca Mon Sep 17 00:00:00 2001
From: Rafael J. Wysocki
Date: Thu, 17 Jun 2010 23:02:27 +0000
Subject: DRM / radeon / KMS: Fix hibernation regression related to radeon PM
 (was: Re: [Regression, post-2.6.34] Hibernation broken on machines with
 radeon/KMS and r300)

There is a regression from 2.6.34 related to the recent radeon power
management changes, caused by attempting to cancel a delayed work
item that's never been scheduled.  However, the code as is has some
other issues potentially leading to visible problems.

First, the mutex around cancel_delayed_work() in radeon_pm_suspend()
doesn't really serve any purpose, because cancel_delayed_work() only
tries to delete the work's timer.  Moreover, it doesn't prevent the
work handler from running, so the handler can do some wrong things if
it wins the race and in that case it will rearm itself to do some
more wrong things going forward.  So, I think it's better to wait for
the handler to return in case it's already been queued up for
execution.  Also, it should be prevented from rearming itself in that
case.

Second, in radeon_set_pm_method() the cancel_delayed_work() is not
sufficient to prevent the work handler from running and queing up
itself for the next run (the failure scenario is that
cancel_delayed_work() returns 0, so the handler is run, it waits on
the mutex and then rearms itself after the mutex has been released),
so again the work handler should be prevented from rearming itself in
that case..

Finally, there's a potential deadlock in radeon_pm_fini(), because
cancel_delayed_work_sync() is called under rdev->pm.mutex, but the
work handler tries to acquire the same mutex (if it wins the race).

Fix the issues described above.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon.h    |  3 ++-
 drivers/gpu/drm/radeon/radeon_pm.c | 41 +++++++++++++++++++++++++++++++-------
 2 files changed, 36 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 5bbf97e26d87..ab61aaa887bb 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -620,7 +620,8 @@ enum radeon_dynpm_state {
 	DYNPM_STATE_DISABLED,
 	DYNPM_STATE_MINIMUM,
 	DYNPM_STATE_PAUSED,
-	DYNPM_STATE_ACTIVE
+	DYNPM_STATE_ACTIVE,
+	DYNPM_STATE_SUSPENDED,
 };
 enum radeon_dynpm_action {
 	DYNPM_ACTION_NONE,
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 63f679a04b25..115d26b762cc 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -397,13 +397,20 @@ static ssize_t radeon_set_pm_method(struct device *dev,
 		rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
 		mutex_unlock(&rdev->pm.mutex);
 	} else if (strncmp("profile", buf, strlen("profile")) == 0) {
+		bool flush_wq = false;
+
 		mutex_lock(&rdev->pm.mutex);
-		rdev->pm.pm_method = PM_METHOD_PROFILE;
+		if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
+			cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+			flush_wq = true;
+		}
 		/* disable dynpm */
 		rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
 		rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
-		cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+		rdev->pm.pm_method = PM_METHOD_PROFILE;
 		mutex_unlock(&rdev->pm.mutex);
+		if (flush_wq)
+			flush_workqueue(rdev->wq);
 	} else {
 		DRM_ERROR("invalid power method!\n");
 		goto fail;
@@ -418,9 +425,18 @@ static DEVICE_ATTR(power_method, S_IRUGO | S_IWUSR, radeon_get_pm_method, radeon
 
 void radeon_pm_suspend(struct radeon_device *rdev)
 {
+	bool flush_wq = false;
+
 	mutex_lock(&rdev->pm.mutex);
-	cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+	if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
+		cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+		if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE)
+			rdev->pm.dynpm_state = DYNPM_STATE_SUSPENDED;
+		flush_wq = true;
+	}
 	mutex_unlock(&rdev->pm.mutex);
+	if (flush_wq)
+		flush_workqueue(rdev->wq);
 }
 
 void radeon_pm_resume(struct radeon_device *rdev)
@@ -432,6 +448,12 @@ void radeon_pm_resume(struct radeon_device *rdev)
 	rdev->pm.current_sclk = rdev->clock.default_sclk;
 	rdev->pm.current_mclk = rdev->clock.default_mclk;
 	rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;
+	if (rdev->pm.pm_method == PM_METHOD_DYNPM
+	    && rdev->pm.dynpm_state == DYNPM_STATE_SUSPENDED) {
+		rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
+		queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work,
+					msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
+	}
 	mutex_unlock(&rdev->pm.mutex);
 	radeon_pm_compute_clocks(rdev);
 }
@@ -486,6 +508,8 @@ int radeon_pm_init(struct radeon_device *rdev)
 void radeon_pm_fini(struct radeon_device *rdev)
 {
 	if (rdev->pm.num_power_states > 1) {
+		bool flush_wq = false;
+
 		mutex_lock(&rdev->pm.mutex);
 		if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
 			rdev->pm.profile = PM_PROFILE_DEFAULT;
@@ -493,13 +517,16 @@ void radeon_pm_fini(struct radeon_device *rdev)
 			radeon_pm_set_clocks(rdev);
 		} else if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
 			/* cancel work */
-			cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work);
+			cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+			flush_wq = true;
 			/* reset default clocks */
 			rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
 			rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
 			radeon_pm_set_clocks(rdev);
 		}
 		mutex_unlock(&rdev->pm.mutex);
+		if (flush_wq)
+			flush_workqueue(rdev->wq);
 
 		device_remove_file(rdev->dev, &dev_attr_power_profile);
 		device_remove_file(rdev->dev, &dev_attr_power_method);
@@ -720,12 +747,12 @@ static void radeon_dynpm_idle_work_handler(struct work_struct *work)
 			radeon_pm_get_dynpm_state(rdev);
 			radeon_pm_set_clocks(rdev);
 		}
+
+		queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work,
+					msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
 	}
 	mutex_unlock(&rdev->pm.mutex);
 	ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched);
-
-	queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work,
-					msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
 }
 
 /*
-- 
cgit v1.2.3-55-g7522


From 773c3fa3a04bf6c9aa7147813beaab66f38e658f Mon Sep 17 00:00:00 2001
From: Alex Deucher
Date: Fri, 25 Jun 2010 16:21:27 -0400
Subject: drm/radeon/kms/pm: fix power state indexing on igp chips in dynpm
 mode

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28745

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Tested-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/r600.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 90f28175a7bc..3d6645ce2151 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -130,9 +130,14 @@ void r600_pm_get_dynpm_state(struct radeon_device *rdev)
 							break;
 						}
 					}
-				} else
-					rdev->pm.requested_power_state_index =
-						rdev->pm.current_power_state_index - 1;
+				} else {
+					if (rdev->pm.current_power_state_index == 0)
+						rdev->pm.requested_power_state_index =
+							rdev->pm.num_power_states - 1;
+					else
+						rdev->pm.requested_power_state_index =
+							rdev->pm.current_power_state_index - 1;
+				}
 			}
 			rdev->pm.requested_clock_mode_index = 0;
 			/* don't use the power state if crtcs are active and no display flag is set */
-- 
cgit v1.2.3-55-g7522


From 2f9c6b0a91a050669dd6df487174de6b96c2774a Mon Sep 17 00:00:00 2001
From: Alex Deucher
Date: Wed, 30 Jun 2010 13:04:08 -0400
Subject: drm/radeon/kms: remove rv100 bios connector quirk

Some RV100 cards with 2 VGA ports show up with DVI+VGA, however
some boards with DVI+VGA have the same subsystem ids. Better
to have a VGA port show up as DVI than having a non-useable
DVI port.

reported by DHR in irc.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/radeon/radeon_combios.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 392bc4d68a4d..d1c1d8dd93ce 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -1938,15 +1938,6 @@ static bool radeon_apply_legacy_quirks(struct drm_device *dev,
 			return false;
 	}
 
-	/* Some RV100 cards with 2 VGA ports show up with DVI+VGA */
-	if (dev->pdev->device == 0x5159 &&
-	    dev->pdev->subsystem_vendor == 0x1002 &&
-	    dev->pdev->subsystem_device == 0x013a) {
-		if (*legacy_connector == CONNECTOR_DVI_I_LEGACY)
-			*legacy_connector = CONNECTOR_CRT_LEGACY;
-
-	}
-
 	/* X300 card with extra non-existent DVI port */
 	if (dev->pdev->device == 0x5B60 &&
 	    dev->pdev->subsystem_vendor == 0x17af &&
-- 
cgit v1.2.3-55-g7522


From 8c215bd3890c347dfb6a2db4779755f8b9c298a9 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra
Date: Thu, 1 Jul 2010 09:07:17 +0200
Subject: sched: Cure nr_iowait_cpu() users

Commit 0224cf4c5e (sched: Intoduce get_cpu_iowait_time_us())
broke things by not making sure preemption was indeed disabled
by the callers of nr_iowait_cpu() which took the iowait value of
the current cpu.

This resulted in a heap of preempt warnings. Cure this by making
nr_iowait_cpu() take a cpu number and fix up the callers to pass
in the right number.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: linux-pm@lists.linux-foundation.org
LKML-Reference: <1277968037.1868.120.camel@laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 drivers/cpuidle/governors/menu.c |  4 ++--
 include/linux/sched.h            |  2 +-
 kernel/sched.c                   |  4 ++--
 kernel/time/tick-sched.c         | 16 ++++++++--------
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index 52ff8aa63f84..1b128702d300 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -143,7 +143,7 @@ static inline int which_bucket(unsigned int duration)
 	 * This allows us to calculate
 	 * E(duration)|iowait
 	 */
-	if (nr_iowait_cpu())
+	if (nr_iowait_cpu(smp_processor_id()))
 		bucket = BUCKETS/2;
 
 	if (duration < 10)
@@ -175,7 +175,7 @@ static inline int performance_multiplier(void)
 	mult += 2 * get_loadavg();
 
 	/* for IO wait tasks (per cpu!) we add 5x each */
-	mult += 10 * nr_iowait_cpu();
+	mult += 10 * nr_iowait_cpu(smp_processor_id());
 
 	return mult;
 }
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f118809c953f..747fcaedddb7 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -139,7 +139,7 @@ extern int nr_processes(void);
 extern unsigned long nr_running(void);
 extern unsigned long nr_uninterruptible(void);
 extern unsigned long nr_iowait(void);
-extern unsigned long nr_iowait_cpu(void);
+extern unsigned long nr_iowait_cpu(int cpu);
 extern unsigned long this_cpu_load(void);
 
 
diff --git a/kernel/sched.c b/kernel/sched.c
index a24d6d5d83f6..f87abe3b0176 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2864,9 +2864,9 @@ unsigned long nr_iowait(void)
 	return sum;
 }
 
-unsigned long nr_iowait_cpu(void)
+unsigned long nr_iowait_cpu(int cpu)
 {
-	struct rq *this = this_rq();
+	struct rq *this = cpu_rq(cpu);
 	return atomic_read(&this->nr_iowait);
 }
 
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 1d7b9bc1c034..1a6f828e57a0 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -154,14 +154,14 @@ static void tick_nohz_update_jiffies(ktime_t now)
  * Updates the per cpu time idle statistics counters
  */
 static void
-update_ts_time_stats(struct tick_sched *ts, ktime_t now, u64 *last_update_time)
+update_ts_time_stats(int cpu, struct tick_sched *ts, ktime_t now, u64 *last_update_time)
 {
 	ktime_t delta;
 
 	if (ts->idle_active) {
 		delta = ktime_sub(now, ts->idle_entrytime);
 		ts->idle_sleeptime = ktime_add(ts->idle_sleeptime, delta);
-		if (nr_iowait_cpu() > 0)
+		if (nr_iowait_cpu(cpu) > 0)
 			ts->iowait_sleeptime = ktime_add(ts->iowait_sleeptime, delta);
 		ts->idle_entrytime = now;
 	}
@@ -175,19 +175,19 @@ static void tick_nohz_stop_idle(int cpu, ktime_t now)
 {
 	struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu);
 
-	update_ts_time_stats(ts, now, NULL);
+	update_ts_time_stats(cpu, ts, now, NULL);
 	ts->idle_active = 0;
 
 	sched_clock_idle_wakeup_event(0);
 }
 
-static ktime_t tick_nohz_start_idle(struct tick_sched *ts)
+static ktime_t tick_nohz_start_idle(int cpu, struct tick_sched *ts)
 {
 	ktime_t now;
 
 	now = ktime_get();
 
-	update_ts_time_stats(ts, now, NULL);
+	update_ts_time_stats(cpu, ts, now, NULL);
 
 	ts->idle_entrytime = now;
 	ts->idle_active = 1;
@@ -216,7 +216,7 @@ u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time)
 	if (!tick_nohz_enabled)
 		return -1;
 
-	update_ts_time_stats(ts, ktime_get(), last_update_time);
+	update_ts_time_stats(cpu, ts, ktime_get(), last_update_time);
 
 	return ktime_to_us(ts->idle_sleeptime);
 }
@@ -242,7 +242,7 @@ u64 get_cpu_iowait_time_us(int cpu, u64 *last_update_time)
 	if (!tick_nohz_enabled)
 		return -1;
 
-	update_ts_time_stats(ts, ktime_get(), last_update_time);
+	update_ts_time_stats(cpu, ts, ktime_get(), last_update_time);
 
 	return ktime_to_us(ts->iowait_sleeptime);
 }
@@ -284,7 +284,7 @@ void tick_nohz_stop_sched_tick(int inidle)
 	 */
 	ts->inidle = 1;
 
-	now = tick_nohz_start_idle(ts);
+	now = tick_nohz_start_idle(cpu, ts);
 
 	/*
 	 * If this cpu is offline and it is the one which updates
-- 
cgit v1.2.3-55-g7522


From 4d5d85906ad109987504033fa04991f1b0a2e552 Mon Sep 17 00:00:00 2001
From: Daniel Mack
Date: Tue, 25 May 2010 16:46:55 +0200
Subject: ARM: mx3: mx31lilly: fix build error for !CONFIG_USB_ULPI

arch/arm/mach-mx3/built-in.o: In function `mx31lilly_board_init':
mach-kzm_arm11_01.c:(.init.text+0x674): undefined reference to `otg_ulpi_create'
mach-kzm_arm11_01.c:(.init.text+0x68c): undefined reference to `otg_ulpi_create'
mach-kzm_arm11_01.c:(.init.text+0x744): undefined reference to `mxc_ulpi_access_ops'
make: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/mach-mx3/mach-mx31lilly.c | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)

diff --git a/arch/arm/mach-mx3/mach-mx31lilly.c b/arch/arm/mach-mx3/mach-mx31lilly.c
index d3d5877c750e..b2c7f512070f 100644
--- a/arch/arm/mach-mx3/mach-mx31lilly.c
+++ b/arch/arm/mach-mx3/mach-mx31lilly.c
@@ -115,6 +115,8 @@ static struct platform_device physmap_flash_device = {
 
 /* USB */
 
+#if defined(CONFIG_USB_ULPI)
+
 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
 			PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
 
@@ -244,10 +246,20 @@ static struct mxc_usbh_platform_data usbh2_pdata = {
 	.flags	= MXC_EHCI_POWER_PINS_ENABLED,
 };
 
-static struct platform_device *devices[] __initdata = {
-	&smsc91x_device,
-	&physmap_flash_device,
-};
+static void lilly1131_usb_init(void)
+{
+	usbotg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
+				USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
+	usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
+				USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
+
+	mxc_register_device(&mxc_usbh1, &usbh1_pdata);
+	mxc_register_device(&mxc_usbh2, &usbh2_pdata);
+}
+
+#else
+static inline void lilly1131_usb_init(void) {}
+#endif /* CONFIG_USB_ULPI */
 
 /* SPI */
 
@@ -279,6 +291,11 @@ static struct spi_board_info mc13783_dev __initdata = {
 	.platform_data	= &mc13783_pdata,
 };
 
+static struct platform_device *devices[] __initdata = {
+	&smsc91x_device,
+	&physmap_flash_device,
+};
+
 static int mx31lilly_baseboard;
 core_param(mx31lilly_baseboard, mx31lilly_baseboard, int, 0444);
 
@@ -321,13 +338,7 @@ static void __init mx31lilly_board_init(void)
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 
 	/* USB */
-	usbotg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
-				USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
-	usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
-				USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
-
-	mxc_register_device(&mxc_usbh1, &usbh1_pdata);
-	mxc_register_device(&mxc_usbh2, &usbh2_pdata);
+	lilly1131_usb_init();
 }
 
 static void __init mx31lilly_timer_init(void)
-- 
cgit v1.2.3-55-g7522


From a5e9d38b226686c89fd78413456535d5b66e8b1f Mon Sep 17 00:00:00 2001
From: Catalin Marinas
Date: Mon, 21 Jun 2010 15:09:06 +0100
Subject: ARM: 6186/1: Avoid the CONSISTENT_DMA_SIZE warning on noMMU builds

This macro is not defined when !CONFIG_MMU so this patch moves the
CONSISTENT_* definitions to the CONFIG_MMU section.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/dma-mapping.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 13fa536d82e6..9e7742f0a102 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -24,15 +24,6 @@
 #include <asm/tlbflush.h>
 #include <asm/sizes.h>
 
-/* Sanity check size */
-#if (CONSISTENT_DMA_SIZE % SZ_2M)
-#error "CONSISTENT_DMA_SIZE must be multiple of 2MiB"
-#endif
-
-#define CONSISTENT_OFFSET(x)	(((unsigned long)(x) - CONSISTENT_BASE) >> PAGE_SHIFT)
-#define CONSISTENT_PTE_INDEX(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PGDIR_SHIFT)
-#define NUM_CONSISTENT_PTES (CONSISTENT_DMA_SIZE >> PGDIR_SHIFT)
-
 static u64 get_coherent_dma_mask(struct device *dev)
 {
 	u64 mask = ISA_DMA_THRESHOLD;
@@ -123,6 +114,15 @@ static void __dma_free_buffer(struct page *page, size_t size)
 }
 
 #ifdef CONFIG_MMU
+/* Sanity check size */
+#if (CONSISTENT_DMA_SIZE % SZ_2M)
+#error "CONSISTENT_DMA_SIZE must be multiple of 2MiB"
+#endif
+
+#define CONSISTENT_OFFSET(x)	(((unsigned long)(x) - CONSISTENT_BASE) >> PAGE_SHIFT)
+#define CONSISTENT_PTE_INDEX(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PGDIR_SHIFT)
+#define NUM_CONSISTENT_PTES (CONSISTENT_DMA_SIZE >> PGDIR_SHIFT)
+
 /*
  * These are the page tables (2MB each) covering uncached, DMA consistent allocations
  */
-- 
cgit v1.2.3-55-g7522


From ca57926d53580f7c950496cb7ef6d7930610e1dd Mon Sep 17 00:00:00 2001
From: Catalin Marinas
Date: Mon, 21 Jun 2010 15:09:36 +0100
Subject: ARM: 6187/1: The v6_dma_inv_range() function must preserve data on
 SMP

A recent patch for DMA cache maintenance on ARM11MPCore added a write
for ownership trick to the v6_dma_inv_range() function. Such operation
destroys data already present in the buffer. However, this function is
used with with dma_sync_single_for_device() which is supposed to
preserve the existing data transfered into the buffer. This patch adds a
combination of read/write for ownership to preserve the original data.

Reported-by: Ronen Shitrit <rshitrit@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/cache-v6.S | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S
index e46ecd847138..332b48c6d4ff 100644
--- a/arch/arm/mm/cache-v6.S
+++ b/arch/arm/mm/cache-v6.S
@@ -212,7 +212,8 @@ v6_dma_inv_range:
 #endif
 1:
 #ifdef CONFIG_SMP
-	str	r0, [r0]			@ write for ownership
+	ldr	r2, [r0]			@ read for ownership
+	str	r2, [r0]			@ write for ownership
 #endif
 #ifdef HARVARD_CACHE
 	mcr	p15, 0, r0, c7, c6, 1		@ invalidate D line
-- 
cgit v1.2.3-55-g7522


From ad642d9f58f1af6e96efccb5f84e52c6d01db5c4 Mon Sep 17 00:00:00 2001
From: Catalin Marinas
Date: Mon, 21 Jun 2010 15:10:07 +0100
Subject: ARM: 6188/1: Add a config option for the ARM11MPCore DMA cache
 maintenance workaround

Commit f4d6477f introduced a workaround for the lack of hardware
broadcasting of the cache maintenance operations on ARM11MPCore.
However, the workaround is only valid on CPUs that do not do speculative
loads into the D-cache.

This patch adds a Kconfig option with the corresponding help to make the
above clear. When the DMA_CACHE_RWFO option is disabled, the kernel
behaviour is that prior to the f4d6477f commit. This also allows ARMv6
UP processors with speculative loads to work correctly.

For other processors, a different workaround may be needed.

Cc: Ronen Shitrit <rshitrit@marvell.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/Kconfig    | 19 +++++++++++++++++++
 arch/arm/mm/cache-v6.S | 15 ++++++++++++---
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 346ae14824a5..fc1b2fa59429 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -735,6 +735,25 @@ config NEEDS_SYSCALL_FOR_CMPXCHG
 	  Forget about fast user space cmpxchg support.
 	  It is just not possible.
 
+config DMA_CACHE_RWFO
+	bool "Enable read/write for ownership DMA cache maintenance"
+	depends on CPU_V6 && SMP
+	default y
+	help
+	  The Snoop Control Unit on ARM11MPCore does not detect the
+	  cache maintenance operations and the dma_{map,unmap}_area()
+	  functions may leave stale cache entries on other CPUs. By
+	  enabling this option, Read or Write For Ownership in the ARMv6
+	  DMA cache maintenance functions is performed. These LDR/STR
+	  instructions change the cache line state to shared or modified
+	  so that the cache operation has the desired effect.
+
+	  Note that the workaround is only valid on processors that do
+	  not perform speculative loads into the D-cache. For such
+	  processors, if cache maintenance operations are not broadcast
+	  in hardware, other workarounds are needed (e.g. cache
+	  maintenance broadcasting in software via FIQ).
+
 config OUTER_CACHE
 	bool
 
diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S
index 332b48c6d4ff..86aa689ef1aa 100644
--- a/arch/arm/mm/cache-v6.S
+++ b/arch/arm/mm/cache-v6.S
@@ -211,7 +211,7 @@ v6_dma_inv_range:
 	mcrne	p15, 0, r1, c7, c15, 1		@ clean & invalidate unified line
 #endif
 1:
-#ifdef CONFIG_SMP
+#ifdef CONFIG_DMA_CACHE_RWFO
 	ldr	r2, [r0]			@ read for ownership
 	str	r2, [r0]			@ write for ownership
 #endif
@@ -235,7 +235,7 @@ v6_dma_inv_range:
 v6_dma_clean_range:
 	bic	r0, r0, #D_CACHE_LINE_SIZE - 1
 1:
-#ifdef CONFIG_SMP
+#ifdef CONFIG_DMA_CACHE_RWFO
 	ldr	r2, [r0]			@ read for ownership
 #endif
 #ifdef HARVARD_CACHE
@@ -258,7 +258,7 @@ v6_dma_clean_range:
 ENTRY(v6_dma_flush_range)
 	bic	r0, r0, #D_CACHE_LINE_SIZE - 1
 1:
-#ifdef CONFIG_SMP
+#ifdef CONFIG_DMA_CACHE_RWFO
 	ldr	r2, [r0]			@ read for ownership
 	str	r2, [r0]			@ write for ownership
 #endif
@@ -284,9 +284,13 @@ ENTRY(v6_dma_map_area)
 	add	r1, r1, r0
 	teq	r2, #DMA_FROM_DEVICE
 	beq	v6_dma_inv_range
+#ifndef CONFIG_DMA_CACHE_RWFO
+	b	v6_dma_clean_range
+#else
 	teq	r2, #DMA_TO_DEVICE
 	beq	v6_dma_clean_range
 	b	v6_dma_flush_range
+#endif
 ENDPROC(v6_dma_map_area)
 
 /*
@@ -296,6 +300,11 @@ ENDPROC(v6_dma_map_area)
  *	- dir	- DMA direction
  */
 ENTRY(v6_dma_unmap_area)
+#ifndef CONFIG_DMA_CACHE_RWFO
+	add	r1, r1, r0
+	teq	r2, #DMA_TO_DEVICE
+	bne	v6_dma_inv_range
+#endif
 	mov	pc, lr
 ENDPROC(v6_dma_unmap_area)
 
-- 
cgit v1.2.3-55-g7522


From cf0bb91b3ce7e42142ccea46232da19a9bbf28d5 Mon Sep 17 00:00:00 2001
From: Catalin Marinas
Date: Mon, 21 Jun 2010 15:12:09 +0100
Subject: ARM: 6192/1: VExpress: Align the machine_desc.phys_io to 1MB section

When not aligned, random bits could be written in the initial page table
by the __create_page_tables() function.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-vexpress/ct-ca9x4.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c
index 9b11eedba65f..6353459bb567 100644
--- a/arch/arm/mach-vexpress/ct-ca9x4.c
+++ b/arch/arm/mach-vexpress/ct-ca9x4.c
@@ -10,6 +10,7 @@
 #include <linux/amba/clcd.h>
 
 #include <asm/clkdev.h>
+#include <asm/pgtable.h>
 #include <asm/hardware/arm_timer.h>
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/hardware/gic.h>
@@ -236,7 +237,7 @@ static void ct_ca9x4_init(void)
 }
 
 MACHINE_START(VEXPRESS, "ARM-Versatile Express CA9x4")
-	.phys_io	= V2M_UART0,
+	.phys_io	= V2M_UART0 & SECTION_MASK,
 	.io_pg_offst	= (__MMIO_P2V(V2M_UART0) >> 18) & 0xfffc,
 	.boot_params	= PHYS_OFFSET + 0x00000100,
 	.map_io		= ct_ca9x4_map_io,
-- 
cgit v1.2.3-55-g7522


From cc9897df72ddea33762f9d24ecaa2b23ef0ad1b4 Mon Sep 17 00:00:00 2001
From: Catalin Marinas
Date: Mon, 21 Jun 2010 15:12:40 +0100
Subject: ARM: 6193/1: RealView: Align the machine_desc.phys_io to 1MB section

When not aligned, random bits could be written in the initial page table
by the __create_page_tables() function.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-realview/realview_eb.c     | 3 ++-
 arch/arm/mach-realview/realview_pb1176.c | 3 ++-
 arch/arm/mach-realview/realview_pb11mp.c | 3 ++-
 arch/arm/mach-realview/realview_pba8.c   | 3 ++-
 arch/arm/mach-realview/realview_pbx.c    | 3 ++-
 5 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index 422ccd70d5f5..4425018fab82 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -32,6 +32,7 @@
 #include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/pmu.h>
+#include <asm/pgtable.h>
 #include <asm/hardware/gic.h>
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/localtimer.h>
@@ -457,7 +458,7 @@ static void __init realview_eb_init(void)
 
 MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_io	= REALVIEW_EB_UART0_BASE,
+	.phys_io	= REALVIEW_EB_UART0_BASE & SECTION_MASK,
 	.io_pg_offst	= (IO_ADDRESS(REALVIEW_EB_UART0_BASE) >> 18) & 0xfffc,
 	.boot_params	= PHYS_OFFSET + 0x00000100,
 	.fixup		= realview_fixup,
diff --git a/arch/arm/mach-realview/realview_pb1176.c b/arch/arm/mach-realview/realview_pb1176.c
index 96568ebfa2bb..099a1f125cf8 100644
--- a/arch/arm/mach-realview/realview_pb1176.c
+++ b/arch/arm/mach-realview/realview_pb1176.c
@@ -32,6 +32,7 @@
 #include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/pmu.h>
+#include <asm/pgtable.h>
 #include <asm/hardware/gic.h>
 #include <asm/hardware/cache-l2x0.h>
 
@@ -351,7 +352,7 @@ static void __init realview_pb1176_init(void)
 
 MACHINE_START(REALVIEW_PB1176, "ARM-RealView PB1176")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_io	= REALVIEW_PB1176_UART0_BASE,
+	.phys_io	= REALVIEW_PB1176_UART0_BASE & SECTION_MASK,
 	.io_pg_offst	= (IO_ADDRESS(REALVIEW_PB1176_UART0_BASE) >> 18) & 0xfffc,
 	.boot_params	= PHYS_OFFSET + 0x00000100,
 	.fixup		= realview_pb1176_fixup,
diff --git a/arch/arm/mach-realview/realview_pb11mp.c b/arch/arm/mach-realview/realview_pb11mp.c
index 7fbefbbebaf0..0e07a5ccb75f 100644
--- a/arch/arm/mach-realview/realview_pb11mp.c
+++ b/arch/arm/mach-realview/realview_pb11mp.c
@@ -32,6 +32,7 @@
 #include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/pmu.h>
+#include <asm/pgtable.h>
 #include <asm/hardware/gic.h>
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/localtimer.h>
@@ -373,7 +374,7 @@ static void __init realview_pb11mp_init(void)
 
 MACHINE_START(REALVIEW_PB11MP, "ARM-RealView PB11MPCore")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_io	= REALVIEW_PB11MP_UART0_BASE,
+	.phys_io	= REALVIEW_PB11MP_UART0_BASE & SECTION_MASK,
 	.io_pg_offst	= (IO_ADDRESS(REALVIEW_PB11MP_UART0_BASE) >> 18) & 0xfffc,
 	.boot_params	= PHYS_OFFSET + 0x00000100,
 	.fixup		= realview_fixup,
diff --git a/arch/arm/mach-realview/realview_pba8.c b/arch/arm/mach-realview/realview_pba8.c
index d3c113b3dfce..ac2f06f1ca50 100644
--- a/arch/arm/mach-realview/realview_pba8.c
+++ b/arch/arm/mach-realview/realview_pba8.c
@@ -31,6 +31,7 @@
 #include <asm/leds.h>
 #include <asm/mach-types.h>
 #include <asm/pmu.h>
+#include <asm/pgtable.h>
 #include <asm/hardware/gic.h>
 
 #include <asm/mach/arch.h>
@@ -323,7 +324,7 @@ static void __init realview_pba8_init(void)
 
 MACHINE_START(REALVIEW_PBA8, "ARM-RealView PB-A8")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_io	= REALVIEW_PBA8_UART0_BASE,
+	.phys_io	= REALVIEW_PBA8_UART0_BASE & SECTION_MASK,
 	.io_pg_offst	= (IO_ADDRESS(REALVIEW_PBA8_UART0_BASE) >> 18) & 0xfffc,
 	.boot_params	= PHYS_OFFSET + 0x00000100,
 	.fixup		= realview_fixup,
diff --git a/arch/arm/mach-realview/realview_pbx.c b/arch/arm/mach-realview/realview_pbx.c
index a235ba30996b..08fd683adc4c 100644
--- a/arch/arm/mach-realview/realview_pbx.c
+++ b/arch/arm/mach-realview/realview_pbx.c
@@ -31,6 +31,7 @@
 #include <asm/mach-types.h>
 #include <asm/pmu.h>
 #include <asm/smp_twd.h>
+#include <asm/pgtable.h>
 #include <asm/hardware/gic.h>
 #include <asm/hardware/cache-l2x0.h>
 
@@ -409,7 +410,7 @@ static void __init realview_pbx_init(void)
 
 MACHINE_START(REALVIEW_PBX, "ARM-RealView PBX")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_io	= REALVIEW_PBX_UART0_BASE,
+	.phys_io	= REALVIEW_PBX_UART0_BASE & SECTION_MASK,
 	.io_pg_offst	= (IO_ADDRESS(REALVIEW_PBX_UART0_BASE) >> 18) & 0xfffc,
 	.boot_params	= PHYS_OFFSET + 0x00000100,
 	.fixup		= realview_pbx_fixup,
-- 
cgit v1.2.3-55-g7522


From 534be1d5a2da940ecc5e528992ea4ace8658157a Mon Sep 17 00:00:00 2001
From: Will Deacon
Date: Mon, 21 Jun 2010 15:29:03 +0100
Subject: ARM: 6194/1: change definition of cpu_relax() for ARM11MPCore

Linux expects that if a CPU modifies a memory location, then that
modification will eventually become visible to other CPUs in the system.

On an ARM11MPCore processor, loads are prioritised over stores so it is
possible for a store operation to be postponed if a polling loop immediately
follows it. If the variable being polled indirectly depends on the outstanding
store [for example, another CPU may be polling the variable that is pending
modification] then there is the potential for deadlock if interrupts are
disabled. This deadlock occurs in the KGDB testsuire when executing on an
SMP ARM11MPCore configuration.

This patch changes the definition of cpu_relax() to smp_mb() for ARMv6 cores,
forcing a flushing of the write buffer on SMP systems before the next load
takes place. If the Kernel is not compiled for SMP support, this will expand
to a barrier() as before.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/processor.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 6a89567ffc5b..7bed3daf83b8 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -91,7 +91,11 @@ extern void release_thread(struct task_struct *);
 
 unsigned long get_wchan(struct task_struct *p);
 
+#if __LINUX_ARM_ARCH__ == 6
+#define cpu_relax()			smp_mb()
+#else
 #define cpu_relax()			barrier()
+#endif
 
 /*
  * Create a new kernel thread
-- 
cgit v1.2.3-55-g7522


From 8954bb0da99b76c7ce5edf2f314807cff68b6ea8 Mon Sep 17 00:00:00 2001
From: Will Deacon
Date: Mon, 21 Jun 2010 15:32:54 +0100
Subject: ARM: 6195/1: OMAP3: pmu: make CPU_HAS_PMU dependent on OMAP3_EMU

CPU performance event counters on v7 cores will only operate
if either the NIDEN or DBGEN signals are driven high.

For the OMAP3 platform, these signals are driven low by default
but DBGEN can be asserted by selecting the OMAP3_EMU Kconfig option,
which enables the virtual clock for hardware debugging peripherals.

Acked-by: Jean Pihet <jpihet@mvista.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1f254bd6c937..98922f7d2d12 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -955,7 +955,8 @@ config XSCALE_PMU
 	default y
 
 config CPU_HAS_PMU
-	depends on CPU_V6 || CPU_V7 || XSCALE_PMU
+	depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
+		   (!ARCH_OMAP3 || OMAP3_EMU)
 	default y
 	bool
 
-- 
cgit v1.2.3-55-g7522


From 476099a1b3950285013dd8df0869df6fceaf6579 Mon Sep 17 00:00:00 2001
From: Fabio Estevam
Date: Thu, 24 Jun 2010 09:43:25 -0700
Subject: watchdog: docs: add an entry for imx2_wdt

Add an entry for imx2_wdt in watchdog-parameters.txt

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

---
 Documentation/watchdog/watchdog-parameters.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/watchdog/watchdog-parameters.txt b/Documentation/watchdog/watchdog-parameters.txt
index 41c95cc1dc1f..17ddd822b456 100644
--- a/Documentation/watchdog/watchdog-parameters.txt
+++ b/Documentation/watchdog/watchdog-parameters.txt
@@ -125,6 +125,11 @@ ibmasr:
 nowayout: Watchdog cannot be stopped once started
 	(default=kernel config parameter)
 -------------------------------------------------
+imx2_wdt:
+timeout: Watchdog timeout in seconds (default 60 s)
+nowayout: Watchdog cannot be stopped once started
+	(default=kernel config parameter)
+-------------------------------------------------
 indydog:
 nowayout: Watchdog cannot be stopped once started
 	(default=kernel config parameter)
-- 
cgit v1.2.3-55-g7522


From c214909b36efec632432acdcbfacdd46a6e11370 Mon Sep 17 00:00:00 2001
From: Gui Jianfeng
Date: Wed, 16 Jun 2010 13:21:44 +0800
Subject: perf tools: Fix find tids routine by excluding "." and ".."

Introduce a filter function to skip "." and ".." directories when calculating
tid number, otherwise tid 0 will be included in the all_tid result array.

Cc: Ingo Molnar <mingo@elte.hu>
LKML-Reference: <4C185F68.1020505@cn.fujitsu.com>
Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/thread.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 1f7ecd47f499..9a448b47400c 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -7,6 +7,15 @@
 #include "util.h"
 #include "debug.h"
 
+/* Skip "." and ".." directories */
+static int filter(const struct dirent *dir)
+{
+	if (dir->d_name[0] == '.')
+		return 0;
+	else
+		return 1;
+}
+
 int find_all_tid(int pid, pid_t ** all_tid)
 {
 	char name[256];
@@ -16,7 +25,7 @@ int find_all_tid(int pid, pid_t ** all_tid)
 	int i;
 
 	sprintf(name, "/proc/%d/task", pid);
-	items = scandir(name, &namelist, NULL, NULL);
+	items = scandir(name, &namelist, filter, NULL);
 	if (items <= 0)
                 return -ENOENT;
 	*all_tid = malloc(sizeof(pid_t) * items);
-- 
cgit v1.2.3-55-g7522


From f9ce889b8f8384ee29e1be4b34091a932e6e40f3 Mon Sep 17 00:00:00 2001
From: Harry Zhang
Date: Thu, 24 Jun 2010 11:34:23 +0800
Subject: libahci: Fix bug in storing EM messages

In function ahci_store_em_buffer(), if the input (signed char*) buffer
contains negative data, the constructed 32-bit long message data may
be wrong.

Signed-off-by: Harry Zhang <harry.zhang@amd.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 drivers/ata/libahci.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 261f86d102e8..81e772a94d59 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -324,6 +324,7 @@ static ssize_t ahci_store_em_buffer(struct device *dev,
 	struct ahci_host_priv *hpriv = ap->host->private_data;
 	void __iomem *mmio = hpriv->mmio;
 	void __iomem *em_mmio = mmio + hpriv->em_loc;
+	const unsigned char *msg_buf = buf;
 	u32 em_ctl, msg;
 	unsigned long flags;
 	int i;
@@ -343,8 +344,8 @@ static ssize_t ahci_store_em_buffer(struct device *dev,
 	}
 
 	for (i = 0; i < size; i += 4) {
-		msg = buf[i] | buf[i + 1] << 8 |
-		      buf[i + 2] << 16 | buf[i + 3] << 24;
+		msg = msg_buf[i] | msg_buf[i + 1] << 8 |
+		      msg_buf[i + 2] << 16 | msg_buf[i + 3] << 24;
 		writel(msg, em_mmio + i);
 	}
 
-- 
cgit v1.2.3-55-g7522


From c6353b4520788e34098bbf61c73fb9618ca7fdd6 Mon Sep 17 00:00:00 2001
From: Tejun Heo
Date: Thu, 17 Jun 2010 11:42:22 +0200
Subject: ahci,ata_generic: let ata_generic handle new MBP w/ MCP89

For yet unknown reason, MCP89 on MBP 7,1 doesn't work w/ ahci under
linux but the controller doesn't require explicit mode setting and
works fine with ata_generic.  Make ahci ignore the controller on MBP
7,1 and let ata_generic take it for now.

Reported in bko#15923.

  https://bugzilla.kernel.org/show_bug.cgi?id=15923

NVIDIA is investigating why ahci mode doesn't work.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peer Chen <pchen@nvidia.com>
Cc: stable@kernel.org
Reported-by: Anders Østhus <grapz666@gmail.com>
Reported-by: Andreas Graf <andreas_graf@csgraf.de>
Reported-by: Benoit Gschwind <gschwind@gnu-log.net>
Reported-by: Damien Cassou <damien.cassou@gmail.com>
Reported-by: tixetsal@juno.com
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 drivers/ata/ahci.c        | 10 ++++++++++
 drivers/ata/ata_generic.c |  6 ++++++
 include/linux/pci_ids.h   |  1 +
 3 files changed, 17 insertions(+)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 8ca16f54e1ed..f2522534ae63 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1053,6 +1053,16 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (pdev->vendor == PCI_VENDOR_ID_MARVELL && !marvell_enable)
 		return -ENODEV;
 
+	/*
+	 * For some reason, MCP89 on MacBook 7,1 doesn't work with
+	 * ahci, use ata_generic instead.
+	 */
+	if (pdev->vendor == PCI_VENDOR_ID_NVIDIA &&
+	    pdev->device == PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA &&
+	    pdev->subsystem_vendor == PCI_VENDOR_ID_APPLE &&
+	    pdev->subsystem_device == 0xcb89)
+		return -ENODEV;
+
 	/* Promise's PDC42819 is a SAS/SATA controller that has an AHCI mode.
 	 * At the moment, we can only use the AHCI mode. Let the users know
 	 * that for SAS drives they're out of luck.
diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c
index 573158a9668d..d4ccf74c4c94 100644
--- a/drivers/ata/ata_generic.c
+++ b/drivers/ata/ata_generic.c
@@ -168,6 +168,12 @@ static struct pci_device_id ata_generic[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_VIA,    PCI_DEVICE_ID_VIA_82C561), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_OPTI,   PCI_DEVICE_ID_OPTI_82C558), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_CENATEK,PCI_DEVICE_ID_CENATEK_IDE), },
+	/*
+	 * For some reason, MCP89 on MacBook 7,1 doesn't work with
+	 * ahci, use ata_generic instead.
+	 */
+	{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA,
+	  PCI_VENDOR_ID_APPLE, 0xcb89, },
 #if !defined(CONFIG_PATA_TOSHIBA) && !defined(CONFIG_PATA_TOSHIBA_MODULE)
 	{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2),  },
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 4eb467910a45..3bedcc149c84 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1261,6 +1261,7 @@
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE       0x0759
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_SMBUS     0x07D8
 #define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP79_SMBUS     0x0AA2
+#define PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA	    0x0D85
 
 #define PCI_VENDOR_ID_IMS		0x10e0
 #define PCI_DEVICE_ID_IMS_TT128		0x9128
-- 
cgit v1.2.3-55-g7522


From 1529c69adce1e95f7ae72f0441590c226bbac7fc Mon Sep 17 00:00:00 2001
From: Tejun Heo
Date: Tue, 22 Jun 2010 12:27:26 +0200
Subject: ata_generic: implement ATA_GEN_* flags and force enable DMA on MBP
 7,1

IDE mode of MCP89 on MBP 7,1 doesn't set DMA enable bits in the BMDMA
status register.  Make the following changes to work around the problem.

* Instead of using hard coded 1 in id->driver_data as class code
  match, use ATA_GEN_CLASS_MATCH and carry the matched id in
  host->private_data.

* Instead of matching PCI_VENDOR_ID_CENATEK, use ATA_GEN_FORCE_DMA
  flag in id instead.

* Add ATA_GEN_FORCE_DMA to the id entry of MBP 7,1.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peer Chen <pchen@nvidia.com>
Cc: stable@kernel.org
Reported-by: Anders Østhus <grapz666@gmail.com>
Reported-by: Andreas Graf <andreas_graf@csgraf.de>
Reported-by: Benoit Gschwind <gschwind@gnu-log.net>
Reported-by: Damien Cassou <damien.cassou@gmail.com>
Reported-by: tixetsal@juno.com
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
---
 drivers/ata/ata_generic.c | 26 +++++++++++++++++++-------
 1 file changed, 19 insertions(+), 7 deletions(-)

diff --git a/drivers/ata/ata_generic.c b/drivers/ata/ata_generic.c
index d4ccf74c4c94..7107a6929deb 100644
--- a/drivers/ata/ata_generic.c
+++ b/drivers/ata/ata_generic.c
@@ -32,6 +32,11 @@
  *	A generic parallel ATA driver using libata
  */
 
+enum {
+	ATA_GEN_CLASS_MATCH		= (1 << 0),
+	ATA_GEN_FORCE_DMA		= (1 << 1),
+};
+
 /**
  *	generic_set_mode	-	mode setting
  *	@link: link to set up
@@ -46,13 +51,17 @@
 static int generic_set_mode(struct ata_link *link, struct ata_device **unused)
 {
 	struct ata_port *ap = link->ap;
+	const struct pci_device_id *id = ap->host->private_data;
 	int dma_enabled = 0;
 	struct ata_device *dev;
 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
 
-	/* Bits 5 and 6 indicate if DMA is active on master/slave */
-	if (ap->ioaddr.bmdma_addr)
+	if (id->driver_data & ATA_GEN_FORCE_DMA) {
+		dma_enabled = 0xff;
+	} else if (ap->ioaddr.bmdma_addr) {
+		/* Bits 5 and 6 indicate if DMA is active on master/slave */
 		dma_enabled = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_STATUS);
+	}
 
 	if (pdev->vendor == PCI_VENDOR_ID_CENATEK)
 		dma_enabled = 0xFF;
@@ -126,7 +135,7 @@ static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id
 	const struct ata_port_info *ppi[] = { &info, NULL };
 
 	/* Don't use the generic entry unless instructed to do so */
-	if (id->driver_data == 1 && all_generic_ide == 0)
+	if ((id->driver_data & ATA_GEN_CLASS_MATCH) && all_generic_ide == 0)
 		return -ENODEV;
 
 	/* Devices that need care */
@@ -155,7 +164,7 @@ static int ata_generic_init_one(struct pci_dev *dev, const struct pci_device_id
 			return rc;
 		pcim_pin_device(dev);
 	}
-	return ata_pci_bmdma_init_one(dev, ppi, &generic_sht, NULL, 0);
+	return ata_pci_bmdma_init_one(dev, ppi, &generic_sht, (void *)id, 0);
 }
 
 static struct pci_device_id ata_generic[] = {
@@ -167,13 +176,15 @@ static struct pci_device_id ata_generic[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_HINT,   PCI_DEVICE_ID_HINT_VXPROII_IDE), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_VIA,    PCI_DEVICE_ID_VIA_82C561), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_OPTI,   PCI_DEVICE_ID_OPTI_82C558), },
-	{ PCI_DEVICE(PCI_VENDOR_ID_CENATEK,PCI_DEVICE_ID_CENATEK_IDE), },
+	{ PCI_DEVICE(PCI_VENDOR_ID_CENATEK,PCI_DEVICE_ID_CENATEK_IDE),
+	  .driver_data = ATA_GEN_FORCE_DMA },
 	/*
 	 * For some reason, MCP89 on MacBook 7,1 doesn't work with
 	 * ahci, use ata_generic instead.
 	 */
 	{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP89_SATA,
-	  PCI_VENDOR_ID_APPLE, 0xcb89, },
+	  PCI_VENDOR_ID_APPLE, 0xcb89,
+	  .driver_data = ATA_GEN_FORCE_DMA },
 #if !defined(CONFIG_PATA_TOSHIBA) && !defined(CONFIG_PATA_TOSHIBA_MODULE)
 	{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), },
 	{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_2),  },
@@ -181,7 +192,8 @@ static struct pci_device_id ata_generic[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA,PCI_DEVICE_ID_TOSHIBA_PICCOLO_5),  },
 #endif	
 	/* Must come last. If you add entries adjust this table appropriately */
-	{ PCI_ANY_ID,		PCI_ANY_ID,			   PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 1},
+	{ PCI_DEVICE_CLASS(PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL),
+	  .driver_data = ATA_GEN_CLASS_MATCH },
 	{ 0, },
 };
 
-- 
cgit v1.2.3-55-g7522


From 43ed340ad93dcefe00a8f116b7e1b9dab2958543 Mon Sep 17 00:00:00 2001
From: Chris Wilson
Date: Thu, 1 Jul 2010 17:53:00 +0100
Subject: drm/i915: Account for space on the ring buffer consumed whilst
 wrapping.

If we fill the tail of the physical ring buffer with NOOP when wrapping,
we need to account for the reduction in available space.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index a3cac5791d76..26362f8495a8 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -687,6 +687,7 @@ int intel_wrap_ring_buffer(struct drm_device *dev,
 		*virt++ = MI_NOOP;
 
 	ring->tail = 0;
+	ring->space = ring->head - 8;
 
 	return 0;
 }
-- 
cgit v1.2.3-55-g7522


From adcdbc6651a7086b99827cf50623a02d941261f1 Mon Sep 17 00:00:00 2001
From: Jesse Barnes
Date: Wed, 30 Jun 2010 13:49:37 -0700
Subject: drm/i915: don't access FW_BLC_SELF on 965G

The register offset for FW_BLC_SELF is a totally different set of bits
on Broadwater (it's actually MI_RDRET_STATE), so don't treat it like
FW_BLC_SELF on 965G chips.

Fixes bug https://bugs.freedesktop.org/show_bug.cgi?id=26874.

Cc: stable@kernel.org
Tested-by: Norman Yarvin <yarvin@yarchive.net>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_debugfs.c  | 2 +-
 drivers/gpu/drm/i915/intel_display.c | 8 +++++---
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 52510ad8b25d..aee83fa178f6 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -620,7 +620,7 @@ static int i915_sr_status(struct seq_file *m, void *unused)
 	drm_i915_private_t *dev_priv = dev->dev_private;
 	bool sr_enabled = false;
 
-	if (IS_I965G(dev) || IS_I945G(dev) || IS_I945GM(dev))
+	if (IS_I965GM(dev) || IS_I945G(dev) || IS_I945GM(dev))
 		sr_enabled = I915_READ(FW_BLC_SELF) & FW_BLC_SELF_EN;
 	else if (IS_I915GM(dev))
 		sr_enabled = I915_READ(INSTPM) & INSTPM_SELF_EN;
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 6db778a75e42..3acb766bda7e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2970,11 +2970,13 @@ static void i965_update_wm(struct drm_device *dev, int planea_clock,
 		if (srwm < 0)
 			srwm = 1;
 		srwm &= 0x3f;
-		I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN);
+		if (IS_I965GM(dev))
+			I915_WRITE(FW_BLC_SELF, FW_BLC_SELF_EN);
 	} else {
 		/* Turn off self refresh if both pipes are enabled */
-		I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF)
-					& ~FW_BLC_SELF_EN);
+		if (IS_I965GM(dev))
+			I915_WRITE(FW_BLC_SELF, I915_READ(FW_BLC_SELF)
+				   & ~FW_BLC_SELF_EN);
 	}
 
 	DRM_DEBUG_KMS("Setting FIFO watermarks - A: 8, B: 8, C: 8, SR %d\n",
-- 
cgit v1.2.3-55-g7522


From fe27d53e5c597ee5ba5d72a29d517091f244e974 Mon Sep 17 00:00:00 2001
From: Dave Airlie
Date: Wed, 30 Jun 2010 11:46:17 +1000
Subject: i915: fix ironlake edp panel setup (v4)

The eDP spec claims a 20% overhead for the 8:10 encoding scheme used
on the wire. Take this into account when picking the lane/clock speed
for the panel.

v3: some panels are out of spec, try our best to deal with them, don't
refuse modes on eDP panels, and try the largest allowed settings if
all else fails on eDP.
v4: fix stupid typo, forgot to git add before amending.

Fixes several reports in bugzilla:

      https://bugs.freedesktop.org/show_bug.cgi?id=28070

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/intel_dp.c | 27 ++++++++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 49b54f05d3cf..1aac59e83bff 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -135,6 +135,12 @@ intel_dp_link_required(struct drm_device *dev,
 		return pixel_clock * 3;
 }
 
+static int
+intel_dp_max_data_rate(int max_link_clock, int max_lanes)
+{
+	return (max_link_clock * max_lanes * 8) / 10;
+}
+
 static int
 intel_dp_mode_valid(struct drm_connector *connector,
 		    struct drm_display_mode *mode)
@@ -144,8 +150,11 @@ intel_dp_mode_valid(struct drm_connector *connector,
 	int max_link_clock = intel_dp_link_clock(intel_dp_max_link_bw(intel_encoder));
 	int max_lanes = intel_dp_max_lane_count(intel_encoder);
 
-	if (intel_dp_link_required(connector->dev, intel_encoder, mode->clock)
-			> max_link_clock * max_lanes)
+	/* only refuse the mode on non eDP since we have seen some wierd eDP panels
+	   which are outside spec tolerances but somehow work by magic */
+	if (!IS_eDP(intel_encoder) &&
+	    (intel_dp_link_required(connector->dev, intel_encoder, mode->clock)
+	     > intel_dp_max_data_rate(max_link_clock, max_lanes)))
 		return MODE_CLOCK_HIGH;
 
 	if (mode->clock < 10000)
@@ -506,7 +515,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
 
 	for (lane_count = 1; lane_count <= max_lane_count; lane_count <<= 1) {
 		for (clock = 0; clock <= max_clock; clock++) {
-			int link_avail = intel_dp_link_clock(bws[clock]) * lane_count;
+			int link_avail = intel_dp_max_data_rate(intel_dp_link_clock(bws[clock]), lane_count);
 
 			if (intel_dp_link_required(encoder->dev, intel_encoder, mode->clock)
 					<= link_avail) {
@@ -521,6 +530,18 @@ intel_dp_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
 			}
 		}
 	}
+
+	if (IS_eDP(intel_encoder)) {
+		/* okay we failed just pick the highest */
+		dp_priv->lane_count = max_lane_count;
+		dp_priv->link_bw = bws[max_clock];
+		adjusted_mode->clock = intel_dp_link_clock(dp_priv->link_bw);
+		DRM_DEBUG_KMS("Force picking display port link bw %02x lane "
+			      "count %d clock %d\n",
+			      dp_priv->link_bw, dp_priv->lane_count,
+			      adjusted_mode->clock);
+		return true;
+	}
 	return false;
 }
 
-- 
cgit v1.2.3-55-g7522


From 2d1c9752eaa4c0b38f6fb1ab79a6addc146cd64e Mon Sep 17 00:00:00 2001
From: Andy Lutomirski
Date: Sat, 12 Jun 2010 05:21:18 -0400
Subject: drm/i915: Fix CRT hotplug regression in 2.6.35-rc1

Commit 7a772c492fcfffae812ffca78a628e76fa57fe58 has two bugs which
made the hotplug problems on my laptop worse instead of better.

First, it did not, in fact, disable the CRT plug interrupt -- it
disabled all the other hotplug interrupts.  It seems rather doubtful
that that bit of the patch fixed anything, so let's just remove it.
(If you want to add it back, you probably meant ~CRT_HOTPLUG_INT_EN.)

Second, on at least my GM45, setting CRT_HOTPLUG_ACTIVATION_PERIOD_64
and CRT_HOTPLUG_VOLTAGE_COMPARE_50 (when they were previously unset)
causes a hotplug interrupt about three seconds later.  The old code
never restored PORT_HOTPLUG_EN so this could only happen once, but
they new code restores those registers.  So just set those bits when
we set up the interrupt in the first place.

Signed-off-by: Andy Lutomirski <luto@mit.edu>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_irq.c  | 12 +++++++++++-
 drivers/gpu/drm/i915/i915_reg.h  |  1 -
 drivers/gpu/drm/i915/intel_crt.c |  6 ------
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 70e1e4b66744..d676e55eb212 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1434,8 +1434,18 @@ int i915_driver_irq_postinstall(struct drm_device *dev)
 			hotplug_en |= SDVOC_HOTPLUG_INT_EN;
 		if (dev_priv->hotplug_supported_mask & SDVOB_HOTPLUG_INT_STATUS)
 			hotplug_en |= SDVOB_HOTPLUG_INT_EN;
-		if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS)
+		if (dev_priv->hotplug_supported_mask & CRT_HOTPLUG_INT_STATUS) {
 			hotplug_en |= CRT_HOTPLUG_INT_EN;
+
+			/* Programming the CRT detection parameters tends
+			   to generate a spurious hotplug event about three
+			   seconds later.  So just do it once.
+			*/
+			if (IS_G4X(dev))
+				hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;
+			hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
+		}
+
 		/* Ignore TV since it's buggy */
 
 		I915_WRITE(PORT_HOTPLUG_EN, hotplug_en);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 2cae38a57247..150400f40534 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1134,7 +1134,6 @@
 #define CRT_HOTPLUG_DETECT_DELAY_2G		(1 << 4)
 #define CRT_HOTPLUG_DETECT_VOLTAGE_325MV	(0 << 2)
 #define CRT_HOTPLUG_DETECT_VOLTAGE_475MV	(1 << 2)
-#define CRT_HOTPLUG_MASK			(0x3fc) /* Bits 9-2 */
 
 #define PORT_HOTPLUG_STAT	0x61114
 #define   HDMIB_HOTPLUG_INT_STATUS		(1 << 29)
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 22ff38455731..ee0732b222a1 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -234,14 +234,8 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector)
 	else
 		tries = 1;
 	hotplug_en = orig = I915_READ(PORT_HOTPLUG_EN);
-	hotplug_en &= CRT_HOTPLUG_MASK;
 	hotplug_en |= CRT_HOTPLUG_FORCE_DETECT;
 
-	if (IS_G4X(dev))
-		hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;
-
-	hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
-
 	for (i = 0; i < tries ; i++) {
 		unsigned long timeout;
 		/* turn on the FORCE_DETECT */
-- 
cgit v1.2.3-55-g7522


From ee0c6bfbd602cdad2ab1780061b3b1a9108cbd6c Mon Sep 17 00:00:00 2001
From: Dan Carpenter
Date: Wed, 23 Jun 2010 13:19:55 +0200
Subject: drm/i915: take struct_mutex in i915_dma_cleanup()

intel_cleanup_ring_buffer() calls drm_gem_object_unreference() (as
opposed to drm_gem_object_unreference_unlocked()) so it needs to be
called with "struct_mutex" held.  If we don't hold the lock, it triggers
a BUG_ON(!mutex_is_locked(&dev->struct_mutex));

I also audited the other places that call intel_cleanup_ring_buffer()
and they all hold the lock so they're OK.

This was introduced in: 8187a2b70e3 "drm/i915: introduce
intel_ring_buffer structure (V2)" and it's a regression from v2.6.34.

Addresses: https://bugzilla.kernel.org/show_bug.cgi?id=16247

Signed-off-by: Dan Carpenter <error27@gmail.com>
Reported-by: Benny Halevy <bhalevy@panasas.com>
Tested-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_dma.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 4d59710c717e..19677ecfe2bf 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -128,9 +128,11 @@ static int i915_dma_cleanup(struct drm_device * dev)
 	if (dev->irq_enabled)
 		drm_irq_uninstall(dev);
 
+	mutex_lock(&dev->struct_mutex);
 	intel_cleanup_ring_buffer(dev, &dev_priv->render_ring);
 	if (HAS_BSD(dev))
 		intel_cleanup_ring_buffer(dev, &dev_priv->bsd_ring);
+	mutex_unlock(&dev->struct_mutex);
 
 	/* Clear the HWS virtual address at teardown */
 	if (I915_NEED_GFX_HWS(dev))
-- 
cgit v1.2.3-55-g7522


From 132b6aab90d2673af67c414878da241a197e00fb Mon Sep 17 00:00:00 2001
From: Prarit Bhargava
Date: Thu, 27 May 2010 13:37:56 -0400
Subject: drm/i915: fix uninitialized variable warning in
 i915_setup_compression()

Fixes:

drivers/gpu/drm/i915/i915_dma.c: In function ‘i915_setup_compression’:
drivers/gpu/drm/i915/i915_dma.c:1311: error: ‘compressed_llb’ may be used uninitialized in this function

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/i915_dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 19677ecfe2bf..e50ae3c6cb6e 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1231,7 +1231,7 @@ static void i915_warn_stolen(struct drm_device *dev)
 static void i915_setup_compression(struct drm_device *dev, int size)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	struct drm_mm_node *compressed_fb, *compressed_llb;
+	struct drm_mm_node *compressed_fb, *uninitialized_var(compressed_llb);
 	unsigned long cfb_base;
 	unsigned long ll_base = 0;
 
-- 
cgit v1.2.3-55-g7522


From dd1ea37d9257bdf118693235dc74003901c55204 Mon Sep 17 00:00:00 2001
From: Jesse Barnes
Date: Thu, 24 Jun 2010 11:05:10 -0700
Subject: drm/i915: change default panel fitting mode to preserve aspect ratio

We did this a long time ago in the DDX driver, but now this fix belongs
in the kernel.

Preserving the aspect ratio is a nicer default.

Fixes https://bugs.freedesktop.org/show_bug.cgi?id=18033.

Tested-by: Josh Triplett <josh@freedesktop.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/i915/intel_lvds.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 6a1accd83aec..31df55f0a0a7 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -983,8 +983,8 @@ void intel_lvds_init(struct drm_device *dev)
 
 	drm_connector_attach_property(&intel_connector->base,
 				      dev->mode_config.scaling_mode_property,
-				      DRM_MODE_SCALE_FULLSCREEN);
-	lvds_priv->fitting_mode = DRM_MODE_SCALE_FULLSCREEN;
+				      DRM_MODE_SCALE_ASPECT);
+	lvds_priv->fitting_mode = DRM_MODE_SCALE_ASPECT;
 	/*
 	 * LVDS discovery:
 	 * 1) check for EDID on DDC
-- 
cgit v1.2.3-55-g7522


From 985b823b919273fe1327d56d2196b4f92e5d0fae Mon Sep 17 00:00:00 2001
From: Linus Torvalds
Date: Fri, 2 Jul 2010 10:04:42 +1000
Subject: drm/i915: fix hibernation since i915 self-reclaim fixes

Since commit 4bdadb9785696439c6e2b3efe34aa76df1149c83 ("drm/i915:
Selectively enable self-reclaim"), we've been passing GFP_MOVABLE to the
i915 page allocator where we weren't before due to some over-eager
removal of the page mapping gfp_flags games the code used to play.

This caused hibernate on Intel hardware to result in a lot of memory
corruptions on resume.  See for example

  http://bugzilla.kernel.org/show_bug.cgi?id=13811

Reported-by: Evengi Golov (in bugzilla)
Signed-off-by: Dave Airlie <airlied@redhat.com>
Tested-by: M. Vefa Bicakci <bicave@superonline.com>
Cc: stable@kernel.org
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/gpu/drm/i915/i915_gem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 9ded3dae6c87..074385882ccf 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2239,7 +2239,7 @@ i915_gem_object_get_pages(struct drm_gem_object *obj,
 	mapping = inode->i_mapping;
 	for (i = 0; i < page_count; i++) {
 		page = read_cache_page_gfp(mapping, i,
-					   mapping_gfp_mask (mapping) |
+					   GFP_HIGHUSER |
 					   __GFP_COLD |
 					   gfpmask);
 		if (IS_ERR(page))
-- 
cgit v1.2.3-55-g7522


From 980533b018fda7ae4c4fb6863b75a0e282d2ffd2 Mon Sep 17 00:00:00 2001
From: Daniel J Blueman
Date: Thu, 1 Jul 2010 23:27:11 +0100
Subject: correct console log level when ERST ACPI table is not found

When booting 2.6.35-rc3 on a x86 system without an ERST ACPI table with
the 'quiet' option, we still observe an "ERST: Table is not found!"
warning.

Quiesce it to the same info log level as the other 'table not found'
warnings.

Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/acpi/apei/erst.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 2ebc39115507..864dd46c346f 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -781,7 +781,7 @@ static int __init erst_init(void)
 	status = acpi_get_table(ACPI_SIG_ERST, 0,
 				(struct acpi_table_header **)&erst_tab);
 	if (status == AE_NOT_FOUND) {
-		pr_err(ERST_PFX "Table is not found!\n");
+		pr_info(ERST_PFX "Table is not found!\n");
 		goto err;
 	} else if (ACPI_FAILURE(status)) {
 		const char *msg = acpi_format_exception(status);
-- 
cgit v1.2.3-55-g7522


From 70565d00db6ef5735819db973fa8da95bd34a6ab Mon Sep 17 00:00:00 2001
From: Jesse Barnes
Date: Thu, 1 Jul 2010 04:45:43 -0700
Subject: drm/i915: fix page flip finish vs. prepare on plane B

The refreshed patch had a copy & paste bug.

Reported-by: Simon Farnsworth <simon.farnsworth@onelan.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/gpu/drm/i915/i915_irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index d676e55eb212..dba53d4b9fb3 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -947,9 +947,9 @@ irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS)
 		}
 
 		if (iir & I915_DISPLAY_PLANE_B_FLIP_PENDING_INTERRUPT) {
+			intel_prepare_page_flip(dev, 1);
 			if (dev_priv->flip_pending_is_done)
 				intel_finish_page_flip_plane(dev, 1);
-			intel_prepare_page_flip(dev, 1);
 		}
 
 		if (pipea_stats & vblank_status) {
-- 
cgit v1.2.3-55-g7522


From 2503a5ecd86c002506001eba432c524ea009fe7f Mon Sep 17 00:00:00 2001
From: Catalin Marinas
Date: Thu, 1 Jul 2010 13:21:47 +0100
Subject: ARM: 6201/1: RealView: Do not use outer_sync() on ARM11MPCore boards
 with L220

RealView boards with certain revisions of the L220 cache controller (ARM11*
processors only) may have issues (hardware deadlock) with the recent changes to
the mb() barrier implementation (DSB followed by an L2 cache sync). The patch
redefines the RealView ARM11MPCore mandatory barriers without the outer_sync()
call.

Cc: <stable@kernel.org>
Tested-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-realview/Kconfig                 | 2 ++
 arch/arm/mach-realview/include/mach/barriers.h | 8 ++++++++
 2 files changed, 10 insertions(+)
 create mode 100644 arch/arm/mach-realview/include/mach/barriers.h

diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig
index ee5e392430e8..b4575ae9648e 100644
--- a/arch/arm/mach-realview/Kconfig
+++ b/arch/arm/mach-realview/Kconfig
@@ -18,6 +18,7 @@ config REALVIEW_EB_ARM11MP
 	bool "Support ARM11MPCore tile"
 	depends on MACH_REALVIEW_EB
 	select CPU_V6
+	select ARCH_HAS_BARRIERS if SMP
 	help
 	  Enable support for the ARM11MPCore tile on the Realview platform.
 
@@ -35,6 +36,7 @@ config MACH_REALVIEW_PB11MP
 	select CPU_V6
 	select ARM_GIC
 	select HAVE_PATA_PLATFORM
+	select ARCH_HAS_BARRIERS if SMP
 	help
 	  Include support for the ARM(R) RealView MPCore Platform Baseboard.
 	  PB11MPCore is a platform with an on-board ARM11MPCore and has
diff --git a/arch/arm/mach-realview/include/mach/barriers.h b/arch/arm/mach-realview/include/mach/barriers.h
new file mode 100644
index 000000000000..0c5d749d7b5f
--- /dev/null
+++ b/arch/arm/mach-realview/include/mach/barriers.h
@@ -0,0 +1,8 @@
+/*
+ * Barriers redefined for RealView ARM11MPCore platforms with L220 cache
+ * controller to work around hardware errata causing the outer_sync()
+ * operation to deadlock the system.
+ */
+#define mb()		dsb()
+#define rmb()		dmb()
+#define wmb()		mb()
-- 
cgit v1.2.3-55-g7522


From 42c4dafe803dcad82980fd8b0831a89032156f93 Mon Sep 17 00:00:00 2001
From: Catalin Marinas
Date: Thu, 1 Jul 2010 13:22:48 +0100
Subject: ARM: 6202/1: Do not ARM_DMA_MEM_BUFFERABLE on RealView boards with
 L210/L220

RealView boards with certain revisions of the L210/L220 cache controller
may have issues (hardware deadlock) with the mandatory barriers (DSB
followed by an L2 cache sync) when ARM_DMA_MEM_BUFFERABLE is enabled.
The patch disables ARM_DMA_MEM_BUFFERABLE for these boards.

Tested-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index fc1b2fa59429..101105e52610 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -813,6 +813,8 @@ config ARM_L1_CACHE_SHIFT
 
 config ARM_DMA_MEM_BUFFERABLE
 	bool "Use non-cacheable memory for DMA" if CPU_V6 && !CPU_V7
+	depends on !(MACH_REALVIEW_PB1176 || REALVIEW_EB_ARM11MP || \
+		     MACH_REALVIEW_PB11MP)
 	default y if CPU_V6 || CPU_V7
 	help
 	  Historically, the kernel has used strongly ordered mappings to
-- 
cgit v1.2.3-55-g7522


From 41c310447fe06bcedc22b75752c18b60e0b9521b Mon Sep 17 00:00:00 2001
From: Borislav Petkov
Date: Fri, 2 Jul 2010 17:02:43 +0200
Subject: amd64_edac: Fix syndrome calculation on K8

When calculating the DCT channel from the syndrome we need to know the
syndrome type (x4 vs x8). On F10h, this is read out from extended PCI
cfg space register F3x180 while on K8 we only support x4 syndromes and
don't have extended PCI config space anyway.

Make the code accessing F3x180 F10h only and fall back to x4 syndromes
on everything else.

Cc: <stable@kernel.org> # .33.x .34.x
Reported-by: Jeffrey Merkey <jeffmerkey@gmail.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
---
 drivers/edac/amd64_edac.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index cf17dbb8014f..ac9f7985096d 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -1958,20 +1958,20 @@ static int get_channel_from_ecc_syndrome(struct mem_ctl_info *mci, u16 syndrome)
 	u32 value = 0;
 	int err_sym = 0;
 
-	amd64_read_pci_cfg(pvt->misc_f3_ctl, 0x180, &value);
+	if (boot_cpu_data.x86 == 0x10) {
 
-	/* F3x180[EccSymbolSize]=1, x8 symbols */
-	if (boot_cpu_data.x86 == 0x10 &&
-	    boot_cpu_data.x86_model > 7 &&
-	    value & BIT(25)) {
-		err_sym = decode_syndrome(syndrome, x8_vectors,
-					  ARRAY_SIZE(x8_vectors), 8);
-		return map_err_sym_to_channel(err_sym, 8);
-	} else {
-		err_sym = decode_syndrome(syndrome, x4_vectors,
-					  ARRAY_SIZE(x4_vectors), 4);
-		return map_err_sym_to_channel(err_sym, 4);
+		amd64_read_pci_cfg(pvt->misc_f3_ctl, 0x180, &value);
+
+		/* F3x180[EccSymbolSize]=1 => x8 symbols */
+		if (boot_cpu_data.x86_model > 7 &&
+		    value & BIT(25)) {
+			err_sym = decode_syndrome(syndrome, x8_vectors,
+						  ARRAY_SIZE(x8_vectors), 8);
+			return map_err_sym_to_channel(err_sym, 8);
+		}
 	}
+	err_sym = decode_syndrome(syndrome, x4_vectors, ARRAY_SIZE(x4_vectors), 4);
+	return map_err_sym_to_channel(err_sym, 4);
 }
 
 /*
-- 
cgit v1.2.3-55-g7522


From bda142890e6bdd9b1115715e50b0276ea4b9978a Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab
Date: Wed, 30 Jun 2010 01:41:35 -0300
Subject: i7core_edac: Properly discover the first QPI device

On Nehalem/Nehalem-EP/Westmere, the first QPI device is the last PCI bus.
The last bus is generally at 0x3f or 0xff, but there are also other systems
using different setups. For example, HP Z800 has 0x7f as the last bus.

This patch adds a logic to discover the last bus, dynamically detecting it
at runtime.

Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/edac/i7core_edac.c | 36 ++++++++++++++++++++++++++++--------
 1 file changed, 28 insertions(+), 8 deletions(-)

diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index 6b8b7b41ec5f..d7c76800988e 100644
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -1233,10 +1233,28 @@ static void __init i7core_xeon_pci_fixup(struct pci_id_table *table)
 			for (i = 0; i < MAX_SOCKET_BUSES; i++)
 				pcibios_scan_specific_bus(255-i);
 		}
+		pci_dev_put(pdev);
 		table++;
 	}
 }
 
+static unsigned i7core_pci_lastbus(void)
+{
+	int last_bus = 0, bus;
+	struct pci_bus *b = NULL;
+
+	while ((b = pci_find_next_bus(b)) != NULL) {
+		bus = b->number;
+		debugf0("Found bus %d\n", bus);
+		if (bus > last_bus)
+			last_bus = bus;
+	}
+
+	debugf0("Last bus %d\n", last_bus);
+
+	return last_bus;
+}
+
 /*
  *	i7core_get_devices	Find and perform 'get' operation on the MCH's
  *			device/functions we want to reference for this driver
@@ -1244,7 +1262,8 @@ static void __init i7core_xeon_pci_fixup(struct pci_id_table *table)
  *			Need to 'get' device 16 func 1 and func 2
  */
 int i7core_get_onedevice(struct pci_dev **prev, int devno,
-			 struct pci_id_descr *dev_descr, unsigned n_devs)
+			 struct pci_id_descr *dev_descr, unsigned n_devs,
+			 unsigned last_bus)
 {
 	struct i7core_dev *i7core_dev;
 
@@ -1291,10 +1310,7 @@ int i7core_get_onedevice(struct pci_dev **prev, int devno,
 	}
 	bus = pdev->bus->number;
 
-	if (bus == 0x3f)
-		socket = 0;
-	else
-		socket = 255 - bus;
+	socket = last_bus - bus;
 
 	i7core_dev = get_i7core_dev(socket);
 	if (!i7core_dev) {
@@ -1358,17 +1374,21 @@ int i7core_get_onedevice(struct pci_dev **prev, int devno,
 
 static int i7core_get_devices(struct pci_id_table *table)
 {
-	int i, rc;
+	int i, rc, last_bus;
 	struct pci_dev *pdev = NULL;
 	struct pci_id_descr *dev_descr;
 
+	last_bus = i7core_pci_lastbus();
+
 	while (table && table->descr) {
 		dev_descr = table->descr;
 		for (i = 0; i < table->n_devs; i++) {
 			pdev = NULL;
 			do {
-				rc = i7core_get_onedevice(&pdev, i, &dev_descr[i],
-							  table->n_devs);
+				rc = i7core_get_onedevice(&pdev, i,
+							  &dev_descr[i],
+							  table->n_devs,
+							  last_bus);
 				if (rc < 0) {
 					if (i == 0) {
 						i = table->n_devs;
-- 
cgit v1.2.3-55-g7522


From 2d95d8158b5ab51339f8482c98c01469c45ff6d7 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab
Date: Wed, 30 Jun 2010 01:42:21 -0300
Subject: i7core_edac: Avoid doing multiple probes for the same card

As Nehalem/Nehalem-EP/Westmere devices uses several devices for the same
functionality (memory controller), the default way of proping devices doesn't
work. So, instead of a per-device probe, all devices should be probed at once.

This means that we should block any new attempt of probe, otherwise, it will
try to register the same device several times.

Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 drivers/edac/i7core_edac.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index d7c76800988e..cc9357da0e34 100644
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -1947,21 +1947,26 @@ fail:
  *		0 for FOUND a device
  *		< 0 for error code
  */
+
+static int probed = 0;
+
 static int __devinit i7core_probe(struct pci_dev *pdev,
 				  const struct pci_device_id *id)
 {
-	int dev_idx = id->driver_data;
 	int rc;
 	struct i7core_dev *i7core_dev;
 
+	/* get the pci devices we want to reserve for our use */
+	mutex_lock(&i7core_edac_lock);
+
 	/*
 	 * All memory controllers are allocated at the first pass.
 	 */
-	if (unlikely(dev_idx >= 1))
+	if (unlikely(probed >= 1)) {
+		mutex_unlock(&i7core_edac_lock);
 		return -EINVAL;
-
-	/* get the pci devices we want to reserve for our use */
-	mutex_lock(&i7core_edac_lock);
+	}
+	probed++;
 
 	rc = i7core_get_devices(pci_dev_table);
 	if (unlikely(rc < 0))
@@ -2033,6 +2038,8 @@ static void __devexit i7core_remove(struct pci_dev *pdev)
 				      i7core_dev->socket);
 		}
 	}
+	probed--;
+
 	mutex_unlock(&i7core_edac_lock);
 }
 
-- 
cgit v1.2.3-55-g7522


From 67c8931677090540e31b4f816e5fe315ff51f262 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab
Date: Wed, 30 Jun 2010 01:45:28 -0300
Subject: MAINTAINERS: Add an entry for i7core_edac

While here, fixes the mailing list for i5400_edac

Acked-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
---
 MAINTAINERS | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 6d119c98b89b..6084655152d5 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2109,11 +2109,18 @@ F:	drivers/edac/i5000_edac.c
 
 EDAC-I5400
 M:	Mauro Carvalho Chehab <mchehab@redhat.com>
-L:	bluesmoke-devel@lists.sourceforge.net (moderated for non-subscribers)
+L:	linux-edac@vger.kernel.org
 W:	bluesmoke.sourceforge.net
 S:	Maintained
 F:	drivers/edac/i5400_edac.c
 
+EDAC-I7CORE
+M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+L:	linux-edac@vger.kernel.org
+W:	bluesmoke.sourceforge.net
+S:	Maintained
+F:	drivers/edac/i7core_edac.c linux/edac_mce.h drivers/edac/edac_mce.c
+
 EDAC-I82975X
 M:	Ranganathan Desikan <ravi@jetztechnologies.com>
 M:	"Arvind R." <arvind@jetztechnologies.com>
-- 
cgit v1.2.3-55-g7522


From 3e6b02d9f5a9715f7d4ff9e0978e5f9cef53d31f Mon Sep 17 00:00:00 2001
From: Dan Williams
Date: Fri, 2 Jul 2010 15:46:17 -0600
Subject: of/dma: fix build breakage in ppc4xx adma driver

Convert ppc4xx adma driver to use new node pointer location

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---
 drivers/dma/ppc4xx/adma.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index 5a22ca6927e5..7c3747902a37 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -4257,10 +4257,12 @@ static int ppc440spe_adma_setup_irqs(struct ppc440spe_adma_device *adev,
 				     struct ppc440spe_adma_chan *chan,
 				     int *initcode)
 {
+	struct of_device *ofdev;
 	struct device_node *np;
 	int ret;
 
-	np = container_of(adev->dev, struct of_device, dev)->node;
+	ofdev = container_of(adev->dev, struct of_device, dev);
+	np = ofdev->dev.of_node;
 	if (adev->id != PPC440SPE_XOR_ID) {
 		adev->err_irq = irq_of_parse_and_map(np, 1);
 		if (adev->err_irq == NO_IRQ) {
-- 
cgit v1.2.3-55-g7522


From f287d332ce835f77a4f5077d2c0ef1e3f9ea42d2 Mon Sep 17 00:00:00 2001
From: Vince Weaver
Date: Thu, 1 Jul 2010 15:30:16 -0400
Subject: perf, x86: Fix incorrect branches event on AMD CPUs

While doing some performance counter validation tests on some
assembly language programs I noticed that the "branches:u"
count was very wrong on AMD machines.

It looks like the wrong event was selected.

Signed-off-by: Vince Weaver <vweaver1@eecs.utk.edu>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: <stable@kernel.org>
LKML-Reference: <alpine.DEB.2.00.1007011526010.23160@cl320.eecs.utk.edu>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 arch/x86/kernel/cpu/perf_event_amd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event_amd.c b/arch/x86/kernel/cpu/perf_event_amd.c
index 611df11ba15e..c2897b7b4a3b 100644
--- a/arch/x86/kernel/cpu/perf_event_amd.c
+++ b/arch/x86/kernel/cpu/perf_event_amd.c
@@ -102,8 +102,8 @@ static const u64 amd_perfmon_event_map[] =
   [PERF_COUNT_HW_INSTRUCTIONS]		= 0x00c0,
   [PERF_COUNT_HW_CACHE_REFERENCES]	= 0x0080,
   [PERF_COUNT_HW_CACHE_MISSES]		= 0x0081,
-  [PERF_COUNT_HW_BRANCH_INSTRUCTIONS]	= 0x00c4,
-  [PERF_COUNT_HW_BRANCH_MISSES]		= 0x00c5,
+  [PERF_COUNT_HW_BRANCH_INSTRUCTIONS]	= 0x00c2,
+  [PERF_COUNT_HW_BRANCH_MISSES]		= 0x00c3,
 };
 
 static u64 amd_pmu_event_map(int hw_event)
-- 
cgit v1.2.3-55-g7522


From 446a5a8b1eb91a6990e5c8fe29f14e7a95b69132 Mon Sep 17 00:00:00 2001
From: Will Deacon
Date: Fri, 2 Jul 2010 16:41:52 +0100
Subject: ARM: 6205/1: perf: ensure counter delta is treated as unsigned

Hardware performance counters on ARM are 32-bits wide but atomic64_t
variables are used to represent counter data in the hw_perf_event structure.

The armpmu_event_update function right-shifts a signed 64-bit delta variable
and adds the result to the event count. This can lead to shifting in sign-bits
if the MSB of the 32-bit counter value is set. This results in perf output
such as:

 Performance counter stats for 'sleep 20':

 18446744073460670464  cycles             <-- 0xFFFFFFFFF12A6000
        7783773  instructions             #      0.000 IPC
            465  context-switches
            161  page-faults
        1172393  branches

   20.154242147  seconds time elapsed

This patch ensures that the delta value is treated as unsigned so that the
right shift sets the upper bits to zero.

Cc: <stable@kernel.org>
Acked-by: Jamie Iles <jamie.iles@picochip.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/perf_event.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index c45768614c8a..de12536d687f 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -201,7 +201,7 @@ armpmu_event_update(struct perf_event *event,
 {
 	int shift = 64 - 32;
 	s64 prev_raw_count, new_raw_count;
-	s64 delta;
+	u64 delta;
 
 again:
 	prev_raw_count = atomic64_read(&hwc->prev_count);
-- 
cgit v1.2.3-55-g7522


From ff49d74ad383f54041378144ca1a229ee9aeaa59 Mon Sep 17 00:00:00 2001
From: Yehuda Sadeh
Date: Sat, 3 Jul 2010 13:07:35 +1000
Subject: module: initialize module dynamic debug later

We should initialize the module dynamic debug datastructures
only after determining that the module is not loaded yet. This
fixes a bug that introduced in 2.6.35-rc2, where when a trying
to load a module twice, we also load it's dynamic printing data
twice which causes all sorts of nasty issues. Also handle
the dynamic debug cleanup later on failure.

Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (removed a #ifdef)
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/dynamic_debug.h |  4 ++--
 kernel/module.c               | 23 +++++++++++++++--------
 lib/dynamic_debug.c           |  2 +-
 3 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index b3cd4de9432b..52c0da4bdd18 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -40,7 +40,7 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
 				const char *modname);
 
 #if defined(CONFIG_DYNAMIC_DEBUG)
-extern int ddebug_remove_module(char *mod_name);
+extern int ddebug_remove_module(const char *mod_name);
 
 #define __dynamic_dbg_enabled(dd)  ({	     \
 	int __ret = 0;							     \
@@ -73,7 +73,7 @@ extern int ddebug_remove_module(char *mod_name);
 
 #else
 
-static inline int ddebug_remove_module(char *mod)
+static inline int ddebug_remove_module(const char *mod)
 {
 	return 0;
 }
diff --git a/kernel/module.c b/kernel/module.c
index 8c6b42840dd1..5d2d28197c82 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2062,6 +2062,12 @@ static void dynamic_debug_setup(struct _ddebug *debug, unsigned int num)
 #endif
 }
 
+static void dynamic_debug_remove(struct _ddebug *debug)
+{
+	if (debug)
+		ddebug_remove_module(debug->modname);
+}
+
 static void *module_alloc_update_bounds(unsigned long size)
 {
 	void *ret = module_alloc(size);
@@ -2124,6 +2130,8 @@ static noinline struct module *load_module(void __user *umod,
 	void *ptr = NULL; /* Stops spurious gcc warning */
 	unsigned long symoffs, stroffs, *strmap;
 	void __percpu *percpu;
+	struct _ddebug *debug = NULL;
+	unsigned int num_debug = 0;
 
 	mm_segment_t old_fs;
 
@@ -2476,15 +2484,9 @@ static noinline struct module *load_module(void __user *umod,
 	kfree(strmap);
 	strmap = NULL;
 
-	if (!mod->taints) {
-		struct _ddebug *debug;
-		unsigned int num_debug;
-
+	if (!mod->taints)
 		debug = section_objs(hdr, sechdrs, secstrings, "__verbose",
 				     sizeof(*debug), &num_debug);
-		if (debug)
-			dynamic_debug_setup(debug, num_debug);
-	}
 
 	err = module_finalize(hdr, sechdrs, mod);
 	if (err < 0)
@@ -2526,10 +2528,13 @@ static noinline struct module *load_module(void __user *umod,
 		goto unlock;
 	}
 
+	if (debug)
+		dynamic_debug_setup(debug, num_debug);
+
 	/* Find duplicate symbols */
 	err = verify_export_symbols(mod);
 	if (err < 0)
-		goto unlock;
+		goto ddebug;
 
 	list_add_rcu(&mod->list, &modules);
 	mutex_unlock(&module_mutex);
@@ -2557,6 +2562,8 @@ static noinline struct module *load_module(void __user *umod,
 	mutex_lock(&module_mutex);
 	/* Unlink carefully: kallsyms could be walking list. */
 	list_del_rcu(&mod->list);
+ ddebug:
+	dynamic_debug_remove(debug);
  unlock:
 	mutex_unlock(&module_mutex);
 	synchronize_sched();
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 3df8eb17a607..02afc2533728 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -692,7 +692,7 @@ static void ddebug_table_free(struct ddebug_table *dt)
  * Called in response to a module being unloaded.  Removes
  * any ddebug_table's which point at the module.
  */
-int ddebug_remove_module(char *mod_name)
+int ddebug_remove_module(const char *mod_name)
 {
 	struct ddebug_table *dt, *nextdt;
 	int ret = -ENOENT;
-- 
cgit v1.2.3-55-g7522


From 815c4163b6c8ebf8152f42b0a5fd015cfdcedc78 Mon Sep 17 00:00:00 2001
From: Linus Torvalds
Date: Sun, 4 Jul 2010 20:22:50 -0700
Subject: Linux 2.6.35-rc4

---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 015eca5a1f18..914e5f514888 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 35
-EXTRAVERSION = -rc3
+EXTRAVERSION = -rc4
 NAME = Sheep on Meth
 
 # *DOCUMENTATION*
-- 
cgit v1.2.3-55-g7522