diff options
author | Ingo Molnar <mingo@elte.hu> | 2009-09-07 08:19:51 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-09-07 08:19:51 +0200 |
commit | a1922ed661ab2c1637d0b10cde933bd9cd33d965 (patch) | |
tree | 0f1777542b385ebefd30b3586d830fd8ed6fda5b /arch/x86/include/asm/irqflags.h | |
parent | 75e33751ca8bbb72dd6f1a74d2810ddc8cbe4bdf (diff) | |
parent | d28daf923ac5e4a0d7cecebae56f3e339189366b (diff) |
Merge branch 'tracing/core' into tracing/hw-breakpoints
Conflicts:
arch/Kconfig
kernel/trace/trace.h
Merge reason: resolve the conflicts, plus adopt to the new
ring-buffer APIs.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/include/asm/irqflags.h')
-rw-r--r-- | arch/x86/include/asm/irqflags.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h index 2bdab21f089..c6ccbe7e81a 100644 --- a/arch/x86/include/asm/irqflags.h +++ b/arch/x86/include/asm/irqflags.h @@ -12,9 +12,15 @@ static inline unsigned long native_save_fl(void) { unsigned long flags; + /* + * Note: this needs to be "=r" not "=rm", because we have the + * stack offset from what gcc expects at the time the "pop" is + * executed, and so a memory reference with respect to the stack + * would end up using the wrong address. + */ asm volatile("# __raw_save_flags\n\t" "pushf ; pop %0" - : "=g" (flags) + : "=r" (flags) : /* no input */ : "memory"); |