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* microblaze: Fix syscall error recovery for invalid syscall IDsJamie Garside2015-03-041-1/+2
| | | | | | | | | | | | | | | | | | | This patch fixes two bugs in the Microblaze syscall trap handler when an invalid syscall ID is used. First, the range check on line 351 only checks for syscall IDs greater than __NR_syscalls. A negative syscall ID (either passed to `syscall()` or as returned by `do_syscall_trace_enter()` on error) will still satisfy this test and cause the Linux kernel to access an invalid memory location and cause a kernel oops. This has been fixed by also checking for r12 < 0. Secondly, the current error recovery at line 378 returns using the wrong register (r15 instead of r14) and does not restore the previous stack state. This has been fixed by invoking `ret_from_trap` on error, setting r3 to `-ENOSYS`, similar to what would happen when calling a valid syscall. Signed-off-by: Jamie Garside <jamie.garside@york.ac.uk> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* microblaze: Coding style cleanupMichal Simek2015-03-041-2/+2
| | | | | | No function change. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* all arches, signal: move restart_block to struct task_structAndy Lutomirski2015-02-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If an attacker can cause a controlled kernel stack overflow, overwriting the restart block is a very juicy exploit target. This is because the restart_block is held in the same memory allocation as the kernel stack. Moving the restart block to struct task_struct prevents this exploit by making the restart_block harder to locate. Note that there are other fields in thread_info that are also easy targets, at least on some architectures. It's also a decent simplification, since the restart code is more or less identical on all architectures. [james.hogan@imgtec.com: metag: align thread_info::supervisor_stack] Signed-off-by: Andy Lutomirski <luto@amacapital.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: David Miller <davem@davemloft.net> Acked-by: Richard Weinberger <richard@nod.at> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Haavard Skinnemoen <hskinnemoen@gmail.com> Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no> Cc: Steven Miao <realmz6@gmail.com> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <a-jacquiot@ti.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: David Howells <dhowells@redhat.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Helge Deller <deller@gmx.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Tested-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chen Liqin <liqin.linux@gmail.com> Cc: Lennox Wu <lennox.wu@gmail.com> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Guan Xuetao <gxt@mprc.pku.edu.cn> Cc: Chris Zankel <chris@zankel.net> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2015-02-111-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Miller: 1) More iov_iter conversion work from Al Viro. [ The "crypto: switch af_alg_make_sg() to iov_iter" commit was wrong, and this pull actually adds an extra commit on top of the branch I'm pulling to fix that up, so that the pre-merge state is ok. - Linus ] 2) Various optimizations to the ipv4 forwarding information base trie lookup implementation. From Alexander Duyck. 3) Remove sock_iocb altogether, from CHristoph Hellwig. 4) Allow congestion control algorithm selection via routing metrics. From Daniel Borkmann. 5) Make ipv4 uncached route list per-cpu, from Eric Dumazet. 6) Handle rfs hash collisions more gracefully, also from Eric Dumazet. 7) Add xmit_more support to r8169, e1000, and e1000e drivers. From Florian Westphal. 8) Transparent Ethernet Bridging support for GRO, from Jesse Gross. 9) Add BPF packet actions to packet scheduler, from Jiri Pirko. 10) Add support for uniqu flow IDs to openvswitch, from Joe Stringer. 11) New NetCP ethernet driver, from Muralidharan Karicheri and Wingman Kwok. 12) More sanely handle out-of-window dupacks, which can result in serious ACK storms. From Neal Cardwell. 13) Various rhashtable bug fixes and enhancements, from Herbert Xu, Patrick McHardy, and Thomas Graf. 14) Support xmit_more in be2net, from Sathya Perla. 15) Group Policy extensions for vxlan, from Thomas Graf. 16) Remove Checksum Offload support for vxlan, from Tom Herbert. 17) Like ipv4, support lockless transmit over ipv6 UDP sockets. From Vlad Yasevich. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1494+1 commits) crypto: fix af_alg_make_sg() conversion to iov_iter ipv4: Namespecify TCP PMTU mechanism i40e: Fix for stats init function call in Rx setup tcp: don't include Fast Open option in SYN-ACK on pure SYN-data openvswitch: Only set TUNNEL_VXLAN_OPT if VXLAN-GBP metadata is set ipv6: Make __ipv6_select_ident static ipv6: Fix fragment id assignment on LE arches. bridge: Fix inability to add non-vlan fdb entry net: Mellanox: Delete unnecessary checks before the function call "vunmap" cxgb4: Add support in cxgb4 to get expansion rom version via ethtool ethtool: rename reserved1 memeber in ethtool_drvinfo for expansion ROM version net: dsa: Remove redundant phy_attach() IB/mlx4: Reset flow support for IB kernel ULPs IB/mlx4: Always use the correct port for mirrored multicast attachments net/bonding: Fix potential bad memory access during bonding events tipc: remove tipc_snprintf tipc: nl compat add noop and remove legacy nl framework tipc: convert legacy nl stats show to nl compat tipc: convert legacy nl net id get to nl compat tipc: convert legacy nl net id set to nl compat ...
| * microblaze: include the new timecounter header.Richard Cochran2015-01-021-0/+1
| | | | | | | | | | | | | | The timecounter/cyclecounter code has moved, so users need the new include. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | microblaze: intc: Reformat outputSoren Brinkmann2015-01-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | A message was using pr_info level output for a message including "ERROR" which is not really a fatal error. Remove the 'ERROR' from that message, use pr_warn loglevel and add the function name to the output to give users a chance to find the culprit in case the warning triggers. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: intc: Refactor DT sanity checkSoren Brinkmann2015-01-081-1/+1
| | | | | | | | | | | | | | Avoid funky casts and arithmetic. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: intc: Don't override error codesSoren Brinkmann2015-01-081-2/+2
| | | | | | | | | | | | | | Just pass on error codes instead of overriding them. Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Add target architectureMichal Simek2015-01-081-0/+3
| | | | | | | | | | | | | | Add missing target architectures - virtex7, ultrascale virtex and ultrascale kintex. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Add missing PVR version codesErico Nunes2015-01-081-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | PVR version code was missing in the cpu_ver_lookup table for the following versions: 8.50.b 8.50.c 9.2 9.3 This caused /proc/cpuinfo to display "CPU-Ver: Unknown" for these versions. This was detected and the patch tested with MicroBlaze version 8.50.c. The other codes were taken from the Xilinx MicroBlaze Processor Reference Guides UG081 (v14.7) and UG984 (v2014.1). Signed-off-by: Erico Nunes <nunes.erico@gmail.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Fix variable types to remove W=1 warningMichal Simek2015-01-081-2/+2
| | | | | | | | | | | | | | | | | | This patch removes this warning: arch/microblaze/kernel/signal.c: In function 'setup_rt_frame': arch/microblaze/kernel/signal.c:177:3: warning: signed and unsigned type in conditional expression [-Wsign-compare] Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Use unsigned type for limit comparison in cache.cMichal Simek2015-01-081-3/+3
| | | | | | | | | | | | | | | | The patch removes warnings: arch/microblaze/kernel/cpu/cache.c:146:14: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Use unsigned type for proper comparison in cpuinfo*.cMichal Simek2015-01-052-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Compare the same types together. Compilation warnings: arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c: In function 'set_cpuinfo_pvr_full': arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c:47:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c:52:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c:57:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c:94:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] arch/microblaze/kernel/cpu/cpuinfo-static.c: In function 'set_cpuinfo_static': arch/microblaze/kernel/cpu/cpuinfo-static.c:40:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Use unsigned type for "for" loop because of comparison-kgdb.cMichal Simek2015-01-051-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes warnings reported by W=1: arch/microblaze/kernel/kgdb.c: In function 'pt_regs_to_gdb_regs': arch/microblaze/kernel/kgdb.c:43:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] arch/microblaze/kernel/kgdb.c:51:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] arch/microblaze/kernel/kgdb.c: In function 'gdb_regs_to_pt_regs': arch/microblaze/kernel/kgdb.c:77:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] arch/microblaze/kernel/kgdb.c: In function 'sleeping_thread_to_gdb_regs': arch/microblaze/kernel/kgdb.c:99:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] arch/microblaze/kernel/kgdb.c:103:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Mark get_frame_size as staticMichal Simek2015-01-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | It is used only locally in unwind.c. The patch removes warning: arch/microblaze/kernel/unwind.c:62:13: warning: no previous prototype for 'get_frame_size' [-Wmissing-prototypes] inline long get_frame_size(unsigned long instr) Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Use unsigned return type in do_syscall_trace_enterMichal Simek2015-01-051-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Registers are not signed types. The patch removes warnings: arch/microblaze/kernel/ptrace.c: In function 'do_syscall_trace_enter': arch/microblaze/kernel/ptrace.c:152:14: warning: signed and unsigned type in conditional expression [-Wsign-compare] return ret ?: regs->r12; Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Declare microblaze_kgdb_break in headerMichal Simek2015-01-051-1/+2
| | | | | | | | | | | | | | | | This patch removes the warning: arch/microblaze/kernel/kgdb.c:81:6: warning: no previous prototype for 'microblaze_kgdb_break' [-Wmissing-prototypes] Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Remove unused prom header from reset.cMichal Simek2015-01-051-1/+0Star
| | | | | | | | | | | | Completely unused header by this file. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Remove unused prom_parse.cMichal Simek2015-01-052-36/+1Star
| | | | | | | | | | | | of_parse_dma_window is completely unused. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Wire-up execveat syscallMichal Simek2015-01-051-0/+1
|/ | | | | | Add new execveat syscall. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* microblaze: Fix mmap for cache coherent memoryLars-Peter Clausen2014-12-171-0/+27
| | | | | | | | | | | | | | | When running in non-cache coherent configuration the memory that was allocated with dma_alloc_coherent() has a custom mapping and so there is no 1-to-1 relationship between the kernel virtual address and the PFN. This means that virt_to_pfn() will not work correctly for those addresses and the default mmap implementation in the form of dma_common_mmap() will map some random, but not the requested, memory area. Fix this by providing a custom mmap implementation that looks up the PFN from the page table rather than using virt_to_pfn. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* microblaze: Wire up bpf syscallMichal Simek2014-10-271-0/+1
| | | | | | Add new bpf syscall. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* Merge git://git.infradead.org/users/eparis/auditLinus Torvalds2014-10-201-2/+1Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull audit updates from Eric Paris: "So this change across a whole bunch of arches really solves one basic problem. We want to audit when seccomp is killing a process. seccomp hooks in before the audit syscall entry code. audit_syscall_entry took as an argument the arch of the given syscall. Since the arch is part of what makes a syscall number meaningful it's an important part of the record, but it isn't available when seccomp shoots the syscall... For most arch's we have a better way to get the arch (syscall_get_arch) So the solution was two fold: Implement syscall_get_arch() everywhere there is audit which didn't have it. Use syscall_get_arch() in the seccomp audit code. Having syscall_get_arch() everywhere meant it was a useless flag on the stack and we could get rid of it for the typical syscall entry. The other changes inside the audit system aren't grand, fixed some records that had invalid spaces. Better locking around the task comm field. Removing some dead functions and structs. Make some things static. Really minor stuff" * git://git.infradead.org/users/eparis/audit: (31 commits) audit: rename audit_log_remove_rule to disambiguate for trees audit: cull redundancy in audit_rule_change audit: WARN if audit_rule_change called illegally audit: put rule existence check in canonical order next: openrisc: Fix build audit: get comm using lock to avoid race in string printing audit: remove open_arg() function that is never used audit: correct AUDIT_GET_FEATURE return message type audit: set nlmsg_len for multicast messages. audit: use union for audit_field values since they are mutually exclusive audit: invalid op= values for rules audit: use atomic_t to simplify audit_serial() kernel/audit.c: use ARRAY_SIZE instead of sizeof/sizeof[0] audit: reduce scope of audit_log_fcaps audit: reduce scope of audit_net_id audit: arm64: Remove the audit arch argument to audit_syscall_entry arm64: audit: Add audit hook in syscall_trace_enter/exit() audit: x86: drop arch from __audit_syscall_entry() interface sparc: implement is_32bit_task sparc: properly conditionalize use of TIF_32BIT ...
| * ARCH: AUDIT: audit_syscall_entry() should not require the archEric Paris2014-09-231-2/+1Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have a function where the arch can be queried, syscall_get_arch(). So rather than have every single piece of arch specific code use and/or duplicate syscall_get_arch(), just have the audit code use the syscall_get_arch() code. Based-on-patch-by: Richard Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com> Cc: linux-alpha@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-ia64@vger.kernel.org Cc: microblaze-uclinux@itee.uq.edu.au Cc: linux-mips@linux-mips.org Cc: linux@lists.openrisc.net Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: user-mode-linux-devel@lists.sourceforge.net Cc: linux-xtensa@linux-xtensa.org Cc: x86@kernel.org
* | microblaze: Wire-up memfd_create syscallMichal Simek2014-08-211-0/+1
| | | | | | | | | | | | Add new memfd_create syscall. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Wire-up getrandom syscallMichal Simek2014-08-211-0/+1
| | | | | | | | | | | | Add new getrandom syscall. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: Wire-up seccomp syscallMichal Simek2014-08-211-0/+1
| | | | | | | | | | | | Add new seccomp syscall. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | Merge branch 'signal-cleanup' of ↵Linus Torvalds2014-08-091-36/+19Star
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc Pull arch signal handling cleanup from Richard Weinberger: "This patch series moves all remaining archs to the get_signal(), signal_setup_done() and sigsp() functions. Currently these archs use open coded variants of the said functions. Further, unused parameters get removed from get_signal_to_deliver(), tracehook_signal_handler() and signal_delivered(). At the end of the day we save around 500 lines of code." * 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (43 commits) powerpc: Use sigsp() openrisc: Use sigsp() mn10300: Use sigsp() mips: Use sigsp() microblaze: Use sigsp() metag: Use sigsp() m68k: Use sigsp() m32r: Use sigsp() hexagon: Use sigsp() frv: Use sigsp() cris: Use sigsp() c6x: Use sigsp() blackfin: Use sigsp() avr32: Use sigsp() arm64: Use sigsp() arc: Use sigsp() sas_ss_flags: Remove nested ternary if Rip out get_signal_to_deliver() Clean up signal_delivered() tracehook_signal_handler: Remove sig, info, ka and regs ...
| * | microblaze: Use sigsp()Richard Weinberger2014-08-061-6/+3Star
| | | | | | | | | | | | | | | | | | Use sigsp() instead of the open coded variant. Signed-off-by: Richard Weinberger <richard@nod.at>
| * | microblaze: Use get_signal() signal_setup_done()Richard Weinberger2014-08-061-31/+17Star
| |/ | | | | | | | | | | | | Use the more generic functions get_signal() signal_setup_done() for signal delivery. Signed-off-by: Richard Weinberger <richard@nod.at>
* | Merge tag 'microblaze-3.17-rc1' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds2014-08-071-1/+2
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull microblaze updates from Michal Simek: - add new syscall and fix comment - fix udelay implementation - fix libgcc for modules * tag 'microblaze-3.17-rc1' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Change libgcc-style functions from lib-y to obj-y microblaze: Wire-up renameat2 syscall microblaze: Add syscall number comment microblaze: delay.h fix udelay and ndelay for 8 bit args
| * | microblaze: Wire-up renameat2 syscallMichal Simek2014-07-091-0/+1
| | | | | | | | | | | | | | | | | | Add new renameat2 syscall. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| * | microblaze: Add syscall number commentMichal Simek2014-07-091-1/+1
| |/ | | | | | | | | | | Trivial fix. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | microblaze: ftrace: Remove check of obsolete variable function_trace_stopSteven Rostedt (Red Hat)2014-07-181-5/+0Star
| | | | | | | | | | | | | | | | | | | | Nothing sets function_trace_stop to disable function tracing anymore. Remove the check for it in the arch code. Link: http://lkml.kernel.org/r/53C8D82B.4030204@monstr.eu Tested-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
* | microblaze: ftrace: Add call to ftrace_graph_is_dead() in function graph codeSteven Rostedt (Red Hat)2014-07-181-0/+3
|/ | | | | | | | | | | | | | | | | ftrace_stop() is going away as it disables parts of function tracing that affects users that should not be affected. But ftrace_graph_stop() is built on ftrace_stop(). Here's another example of killing all of function tracing because something went wrong with function graph tracing. Instead of disabling all users of function tracing on function graph error, disable only function graph tracing. To do this, the arch code must call ftrace_graph_is_dead() before it implements function graph. Link: http://lkml.kernel.org/r/53C8D874.9090601@monstr.eu Tested-by: Michal Simek <monstr@monstr.eu> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
* Merge tag 'microblaze-3.16-rc1' of git://git.monstr.eu/linux-2.6-microblaze ↵Linus Torvalds2014-06-063-61/+5Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into next Pull Microblaze updates from Michal Simek: - cleanup PCI and DMA handling - use generic device.h - some cleanups * tag 'microblaze-3.16-rc1' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Fix typo in head.S s/substract/subtract/ microblaze: remove check for CONFIG_XILINX_CONSOLE microblaze: Use generic device.h microblaze: Do not setup empty unmap_sg function microblaze: Remove device_to_mask microblaze: Clean device dma_ops structure microblaze: Cleanup PCI_DRAM_OFFSET handling microblaze: Do not setup pci_dma_ops microblaze: Return default dma operations microblaze: Enable SERIAL_OF_PLATFORM
| * microblaze: Fix typo in head.S s/substract/subtract/Antonio Ospite2014-06-051-1/+1
| | | | | | | | | | | | | | Signed-off-by: Antonio Ospite <ao2@ao2.it> Cc: Michal Simek <monstr@monstr.eu> Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| * microblaze: remove check for CONFIG_XILINX_CONSOLEPaul Bolle2014-06-041-5/+1Star
| | | | | | | | | | | | | | | | | | | | | | There's been a check for CONFIG_XILINX_CONSOLE since v2.6.30. But the Kconfig symbol XILINX_CONSOLE was never added. Remove this check. And, since DUMMY_CONSOLE depends on VT, we can now drop the check for CONFIG_VT. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| * microblaze: Do not setup empty unmap_sg functionMichal Simek2014-06-041-7/+0Star
| | | | | | | | | | | | | | No reason to setup empty function. Core is checking if this function should be called or not. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| * microblaze: Cleanup PCI_DRAM_OFFSET handlingMichal Simek2014-06-041-20/+3Star
| | | | | | | | | | | | | | | | | | PCI_DRAM_OFFSET/pci_dram_offset is 0 all the time and there is no difference for PCI and !PCI cases. Also remove the whole code which setup archdata.dma_data which is completely unused. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| * microblaze: Return default dma operationsMichal Simek2014-06-041-28/+0Star
| | | | | | | | | | | | | | | | Return Microblaze default dma operations and remove bus notifier which setups the same dma operations by default when device is added to the system. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
* | of/fdt: create common debugfsRob Herring2014-04-301-31/+0Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Both powerpc and microblaze have the same FDT blob in debugfs feature. Move this to common location and remove the powerpc and microblaze implementations. This feature could become more useful when FDT overlay support is added. This changes the path of the blob from "$arch/flat-device-tree" to "device-tree/flat-device-tree". Signed-off-by: Rob Herring <robh@kernel.org> Tested-by: Michal Simek <michal.simek@xilinx.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: linuxppc-dev@lists.ozlabs.org Tested-by: Grant Likely <grant.likely@linaro.org> Tested-by: Stephen Chivers <schivers@csc.com>
* | of/fdt: update of_get_flat_dt_prop in prep for libfdtRob Herring2014-04-301-4/+4
|/ | | | | | | | | | | Make of_get_flat_dt_prop arguments compatible with libfdt fdt_getprop call in preparation to convert FDT code to use libfdt. Make the return value const and the property length ptr type an int. Signed-off-by: Rob Herring <robh@kernel.org> Tested-by: Michal Simek <michal.simek@xilinx.com> Tested-by: Grant Likely <grant.likely@linaro.org> Tested-by: Stephen Chivers <schivers@csc.com>
* Merge tag 'microblaze-3.15-rc1' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds2014-04-118-34/+130
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull Microblaze updates from Michal Simek: - use asm-generic/io.h and fix intc/timer code - clean platform handling - enable some syscalls * tag 'microblaze-3.15-rc1' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Use asm-generic/io.h microblaze: Remove platform folder microblaze: Remove generic platform microblaze: Sort Kconfig options microblaze: Move DTS file to common location at boot/dts folder microblaze: Fix compilation failure because of release_thread microblaze: Fix sparse warning because of missing cpu.h header microblaze: Make timer driver endian aware microblaze: Make intc driver endian aware microblaze: Wire-up new system calls sched_setattr/getattr microblaze: Wire-up preadv/pwritev in syscall table microblaze: Enable pselect6 syscall microblaze: Drop architecture-specific declaration of early_printk microblaze: Rename global function heartbeat()
| * microblaze: Use asm-generic/io.hMichal Simek2014-04-071-1/+1
| | | | | | | | | | | | | | | | | | | | Using generic io.h will narrow down code duplication in architecture io.h. - define PCI_IOBASE - remove non existing pci_io_base extern Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| * microblaze: Remove platform folderMichal Simek2014-04-072-1/+31
| | | | | | | | | | | | | | There is no reason to use platform folder structure now. Everything is OF driven. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| * microblaze: Fix sparse warning because of missing cpu.h headerMichal Simek2014-04-071-0/+1
| | | | | | | | | | | | | | | | Warning: arch/microblaze/kernel/process.c:164:6: warning: symbol 'arch_cpu_idle' was not declared. Should it be static? Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| * microblaze: Make timer driver endian awareMichal Simek2014-04-071-15/+47
| | | | | | | | | | | | | | Detect endianess directly on the hardware and use ioread/iowrite functions. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| * microblaze: Make intc driver endian awareMichal Simek2014-04-071-10/+41
| | | | | | | | | | | | | | Detect endianess directly on the hardware and use ioread/iowrite functions. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
| * microblaze: Wire-up new system calls sched_setattr/getattrMichal Simek2014-03-121-0/+2
| | | | | | | | | | | | Wire-up sched_setattr/getattr syscalls. Signed-off-by: Michal Simek <michal.simek@xilinx.com>
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