Merge commit '3ff195b011d7decf501a4d55aeed312731094796' into for-linus

Conflicts:
	drivers/md/md.c

- Resolved conflict in md_update_sb
- Added extra 'NULL' arg to new instance of sysfs_get_dirent.

Signed-off-by: NeilBrown <neilb@suse.de>

19 files changed, 56 insertions, 23 deletions

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index efc1a61ca231..278cf5bceef2 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -22,6 +22,7 @@
 #include <linux/interrupt.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
 
 #include "at_hdmac_regs.h"
 
diff --git a/drivers/dma/coh901318_lli.c b/drivers/dma/coh901318_lli.c
index 71d58c1a1e86..9f7e0e6a7eea 100644
--- a/drivers/dma/coh901318_lli.c
+++ b/drivers/dma/coh901318_lli.c
@@ -11,6 +11,7 @@
 #include <linux/spinlock.h>
 #include <linux/dmapool.h>
 #include <linux/memory.h>
+#include <linux/gfp.h>
 #include <mach/coh901318.h>
 
 #include "coh901318_lli.h"
diff --git a/drivers/dma/coh901318_lli.h b/drivers/dma/coh901318_lli.h
index 7bf713b79c6b..7a5c80990e9e 100644
--- a/drivers/dma/coh901318_lli.h
+++ b/drivers/dma/coh901318_lli.h
@@ -30,7 +30,7 @@ struct device;
  * @pool: pool handle
  * @dev: dma device
  * @lli_nbr: number of lli:s in the pool
- * @algin: adress alignemtn of lli:s
+ * @algin: address alignemtn of lli:s
  * returns 0 on success otherwise none zero
  */
 int coh901318_pool_create(struct coh901318_pool *pool,
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 87399cafce37..d18b5d069d7e 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -58,6 +58,7 @@
 #include <linux/jiffies.h>
 #include <linux/rculist.h>
 #include <linux/idr.h>
+#include <linux/slab.h>
 
 static DEFINE_MUTEX(dma_list_mutex);
 static LIST_HEAD(dma_device_list);
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 6fa55fe3dd24..68d58c414cf0 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -14,6 +14,7 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/random.h>
+#include <linux/slab.h>
 #include <linux/wait.h>
 
 static unsigned int test_buf_size = 16384;
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index bbb4be5a3ff4..88f470f0d820 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -27,6 +27,7 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/dmaengine.h>
 #include <linux/delay.h>
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index af14c9a5b8d4..3e5a8005c62b 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -27,6 +27,7 @@
 
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/dmaengine.h>
@@ -1138,7 +1139,7 @@ ioat_attr_show(struct kobject *kobj, struct attribute *attr, char *page)
 	return entry->show(&chan->common, page);
 }
 
-struct sysfs_ops ioat_sysfs_ops = {
+const struct sysfs_ops ioat_sysfs_ops = {
 	.show	= ioat_attr_show,
 };
 
diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index 4f747a254074..86b97ac8774e 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h
@@ -346,7 +346,7 @@ bool ioat_cleanup_preamble(struct ioat_chan_common *chan,
 			   unsigned long *phys_complete);
 void ioat_kobject_add(struct ioatdma_device *device, struct kobj_type *type);
 void ioat_kobject_del(struct ioatdma_device *device);
-extern struct sysfs_ops ioat_sysfs_ops;
+extern const struct sysfs_ops ioat_sysfs_ops;
 extern struct ioat_sysfs_entry ioat_version_attr;
 extern struct ioat_sysfs_entry ioat_cap_attr;
 #endif /* IOATDMA_H */
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index 1ed5d66d7dca..b5ae56c211e6 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -27,6 +27,7 @@
 
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/dmaengine.h>
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 26febc56dab1..6740e319c9cf 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -57,6 +57,7 @@
  */
 
 #include <linux/pci.h>
+#include <linux/gfp.h>
 #include <linux/dmaengine.h>
 #include <linux/dma-mapping.h>
 #include "registers.h"
diff --git a/drivers/dma/ioat/pci.c b/drivers/dma/ioat/pci.c
index d545fae30f37..99ec26725bae 100644
--- a/drivers/dma/ioat/pci.c
+++ b/drivers/dma/ioat/pci.c
@@ -30,6 +30,7 @@
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/dca.h>
+#include <linux/slab.h>
 #include "dma.h"
 #include "dma_v2.h"
 #include "registers.h"
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index ca6e6a0cb793..1ebc801678b0 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -32,6 +32,7 @@
 #include <linux/memory.h>
 #include <linux/ioport.h>
 #include <linux/raid/pq.h>
+#include <linux/slab.h>
 
 #include <mach/adma.h>
 
diff --git a/drivers/dma/iovlock.c b/drivers/dma/iovlock.c
index c0a272c73682..bb48a57c2fc1 100644
--- a/drivers/dma/iovlock.c
+++ b/drivers/dma/iovlock.c
@@ -27,6 +27,7 @@
 
 #include <linux/dmaengine.h>
 #include <linux/pagemap.h>
+#include <linux/slab.h>
 #include <net/tcp.h> /* for memcpy_toiovec */
 #include <asm/io.h>
 #include <asm/uaccess.h>
diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c
index 3fdf1f46bd63..bbbd58566625 100644
--- a/drivers/dma/mpc512x_dma.c
+++ b/drivers/dma/mpc512x_dma.c
@@ -37,6 +37,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 466ab10c1ff1..e2fd34da64f2 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -18,6 +18,7 @@
 
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/spinlock.h>
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index e69d87f24a25..d44626fa35ad 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -38,6 +38,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
+#include <linux/slab.h>
 #include <linux/uaccess.h>
 #include <linux/proc_fs.h>
 #include <linux/of.h>
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 5d17e09cb625..323afef77802 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -19,14 +19,14 @@
 
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/dmaengine.h>
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
-
-#include <asm/dmaengine.h>
+#include <linux/sh_dma.h>
 
 #include "shdma.h"
 
@@ -44,7 +44,7 @@ enum sh_dmae_desc_status {
 #define LOG2_DEFAULT_XFER_SIZE	2
 
 /* A bitmask with bits enough for enum sh_dmae_slave_chan_id */
-static unsigned long sh_dmae_slave_used[BITS_TO_LONGS(SHDMA_SLAVE_NUMBER)];
+static unsigned long sh_dmae_slave_used[BITS_TO_LONGS(SH_DMA_SLAVE_NUMBER)];
 
 static void sh_dmae_chan_ld_cleanup(struct sh_dmae_chan *sh_chan, bool all);
 
@@ -189,7 +189,7 @@ static int dmae_set_dmars(struct sh_dmae_chan *sh_chan, u16 val)
 	struct sh_dmae_device *shdev = container_of(sh_chan->common.device,
 						struct sh_dmae_device, common);
 	struct sh_dmae_pdata *pdata = shdev->pdata;
-	struct sh_dmae_channel *chan_pdata = &pdata->channel[sh_chan->id];
+	const struct sh_dmae_channel *chan_pdata = &pdata->channel[sh_chan->id];
 	u16 __iomem *addr = shdev->dmars + chan_pdata->dmars / sizeof(u16);
 	int shift = chan_pdata->dmars_bit;
 
@@ -265,8 +265,8 @@ static struct sh_desc *sh_dmae_get_desc(struct sh_dmae_chan *sh_chan)
 	return NULL;
 }
 
-static struct sh_dmae_slave_config *sh_dmae_find_slave(
-	struct sh_dmae_chan *sh_chan, enum sh_dmae_slave_chan_id slave_id)
+static const struct sh_dmae_slave_config *sh_dmae_find_slave(
+	struct sh_dmae_chan *sh_chan, struct sh_dmae_slave *param)
 {
 	struct dma_device *dma_dev = sh_chan->common.device;
 	struct sh_dmae_device *shdev = container_of(dma_dev,
@@ -274,11 +274,11 @@ static struct sh_dmae_slave_config *sh_dmae_find_slave(
 	struct sh_dmae_pdata *pdata = shdev->pdata;
 	int i;
 
-	if ((unsigned)slave_id >= SHDMA_SLAVE_NUMBER)
+	if (param->slave_id >= SH_DMA_SLAVE_NUMBER)
 		return NULL;
 
 	for (i = 0; i < pdata->slave_num; i++)
-		if (pdata->slave[i].slave_id == slave_id)
+		if (pdata->slave[i].slave_id == param->slave_id)
 			return pdata->slave + i;
 
 	return NULL;
@@ -289,6 +289,7 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
 	struct sh_dmae_chan *sh_chan = to_sh_chan(chan);
 	struct sh_desc *desc;
 	struct sh_dmae_slave *param = chan->private;
+	int ret;
 
 	pm_runtime_get_sync(sh_chan->dev);
 
@@ -297,14 +298,18 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
 	 * never runs concurrently with itself or free_chan_resources.
 	 */
 	if (param) {
-		struct sh_dmae_slave_config *cfg;
+		const struct sh_dmae_slave_config *cfg;
 
-		cfg = sh_dmae_find_slave(sh_chan, param->slave_id);
-		if (!cfg)
-			return -EINVAL;
+		cfg = sh_dmae_find_slave(sh_chan, param);
+		if (!cfg) {
+			ret = -EINVAL;
+			goto efindslave;
+		}
 
-		if (test_and_set_bit(param->slave_id, sh_dmae_slave_used))
-			return -EBUSY;
+		if (test_and_set_bit(param->slave_id, sh_dmae_slave_used)) {
+			ret = -EBUSY;
+			goto etestused;
+		}
 
 		param->config = cfg;
 
@@ -333,10 +338,20 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
 	}
 	spin_unlock_bh(&sh_chan->desc_lock);
 
-	if (!sh_chan->descs_allocated)
-		pm_runtime_put(sh_chan->dev);
+	if (!sh_chan->descs_allocated) {
+		ret = -ENOMEM;
+		goto edescalloc;
+	}
 
 	return sh_chan->descs_allocated;
+
+edescalloc:
+	if (param)
+		clear_bit(param->slave_id, sh_dmae_slave_used);
+etestused:
+efindslave:
+	pm_runtime_put(sh_chan->dev);
+	return ret;
 }
 
 /*
@@ -558,12 +573,14 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_slave_sg(
 {
 	struct sh_dmae_slave *param;
 	struct sh_dmae_chan *sh_chan;
+	dma_addr_t slave_addr;
 
 	if (!chan)
 		return NULL;
 
 	sh_chan = to_sh_chan(chan);
 	param = chan->private;
+	slave_addr = param->config->addr;
 
 	/* Someone calling slave DMA on a public channel? */
 	if (!param || !sg_len) {
@@ -576,7 +593,7 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_slave_sg(
 	 * if (param != NULL), this is a successfully requested slave channel,
 	 * therefore param->config != NULL too.
 	 */
-	return sh_dmae_prep_sg(sh_chan, sgl, sg_len, &param->config->addr,
+	return sh_dmae_prep_sg(sh_chan, sgl, sg_len, &slave_addr,
 			       direction, flags);
 }
 
@@ -857,7 +874,7 @@ static int __devinit sh_dmae_chan_probe(struct sh_dmae_device *shdev, int id,
 					int irq, unsigned long flags)
 {
 	int err;
-	struct sh_dmae_channel *chan_pdata = &shdev->pdata->channel[id];
+	const struct sh_dmae_channel *chan_pdata = &shdev->pdata->channel[id];
 	struct platform_device *pdev = to_platform_device(shdev->common.dev);
 	struct sh_dmae_chan *new_sh_chan;
 
diff --git a/drivers/dma/shdma.h b/drivers/dma/shdma.h
index 153609a1e96c..4021275a0a43 100644
--- a/drivers/dma/shdma.h
+++ b/drivers/dma/shdma.h
@@ -17,8 +17,8 @@
 #include <linux/interrupt.h>
 #include <linux/list.h>
 
-#include <asm/dmaengine.h>
-
+#define SH_DMAC_MAX_CHANNELS 6
+#define SH_DMA_SLAVE_NUMBER 256
 #define SH_DMA_TCR_MAX 0x00FFFFFF	/* 16MB */
 
 struct device;
diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c
index 3ebc61067e54..75fcf1ac8bb7 100644
--- a/drivers/dma/txx9dmac.c
+++ b/drivers/dma/txx9dmac.c
@@ -1359,3 +1359,5 @@ module_exit(txx9dmac_exit);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("TXx9 DMA Controller driver");
 MODULE_AUTHOR("Atsushi Nemoto <anemo@mba.ocn.ne.jp>");
+MODULE_ALIAS("platform:txx9dmac");
+MODULE_ALIAS("platform:txx9dmac-chan");