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authorMichal Hocko <mhocko@suse.com>2016-04-13 12:57:12 +0300
committerIngo Molnar <mingo@kernel.org>2016-04-22 09:58:41 +0300
commit00fb16e26ac8559e69c3bb14284f4a548d28ee0d (patch)
tree53a64bf9dad5d996431188d79a071e7c50bb2a0f /arch/x86/lib
parent916633a403702549d37ea353e63a68e5b0dc27ad (diff)
downloadlinux-00fb16e26ac8559e69c3bb14284f4a548d28ee0d.tar.xz
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.S2
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)