Commit-ID: 00fb16e26ac8559e69c3bb14284f4a548d28ee0d
Gitweb: http://git.kernel.org/tip/00fb16e26ac8559e69c3bb14284f4a548d28ee0d
Author: Michal Hocko <mho...@suse.com>
AuthorDate: Wed, 13 Apr 2016 11:57:12 +0200
Committer: Ingo Molnar <mi...@kernel.org>
CommitDate: Fri, 22 Apr 2016 08:58:41 +0200
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 <mi...@kernel.org>
Signed-off-by: Michal Hocko <mho...@suse.com>
Cc: Andrew Morton <a...@linux-foundation.org>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: linux-a...@vger.kernel.org
Cc: linux...@kvack.org
Link:
http://lkml.kernel.org/r/1460541432-21631-1-git-send-email-mho...@kernel.org
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
arch/x86/lib/rwsem.S | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S
index 4534a7e..a37462a 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)
