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| author |   Michal Hocko <mhocko@suse.com> | 2016-04-13 11:57:12 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2016-04-22 08:58:41 +0200 |
| commit | 00fb16e26ac8559e69c3bb14284f4a548d28ee0d (patch) | |
| tree | 53a64bf9dad5d996431188d79a071e7c50bb2a0f /arch/x86/lib | |
| parent | locking/rwsem: Provide down_write_killable() (diff) | |
| download | linux-dev-00fb16e26ac8559e69c3bb14284f4a548d28ee0d.tar.xz linux-dev-00fb16e26ac8559e69c3bb14284f4a548d28ee0d.zip | |
locking/rwsem, x86: Add frame annotation for call_rwsem_down_write_failed_killable()
3387a535ce62 ("x86/asm: Create stack frames in rwsem functions") has
added FRAME_{BEGIN,END} annotations to rwsem asm stubs. The patch
which has added call_rwsem_down_write_failed_killable() was based on an
older tree so it didn't know about annotations. Let's add them.
This addresses the following objtool warning:
arch/x86/lib/rwsem.o: warning: objtool: call_rwsem_down_write_failed_killable()+0xe: call without frame pointer save/setup
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Michal Hocko <mhocko@suse.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arch@vger.kernel.org
Cc: linux-mm@kvack.org
Link: http://lkml.kernel.org/r/1460541432-21631-1-git-send-email-mhocko@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/lib')
| -rw-r--r-- | arch/x86/lib/rwsem.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S index 4534a7e912f3..a37462a23546 100644 --- a/arch/x86/lib/rwsem.S +++ b/arch/x86/lib/rwsem.S @@ -107,10 +107,12 @@ ENTRY(call_rwsem_down_write_failed) ENDPROC(call_rwsem_down_write_failed) ENTRY(call_rwsem_down_write_failed_killable) + FRAME_BEGIN save_common_regs movq %rax,%rdi call rwsem_down_write_failed_killable restore_common_regs + FRAME_END ret ENDPROC(call_rwsem_down_write_failed_killable) |