[tip:x86/asm] perf/x86/64: Report regs_user-> ax too in get_regs_user()

[tip-bot for Denys Vlasenko]

Commit-ID:  3b75232d55680ca166dffa274d0587d5faf0a016
Gitweb:     http://git.kernel.org/tip/3b75232d55680ca166dffa274d0587d5faf0a016
Author:     Denys Vlasenko <dvlasenk@xxxxxxxxxx>
AuthorDate: Fri, 10 Apr 2015 15:06:59 +0200
Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Sat, 11 Apr 2015 13:08:53 +0200

perf/x86/64: Report regs_user->ax too in get_regs_user()

I don't see why we report e.g. orix_ax, which is not always
meaningful, but don't report ax, which is meaningful.

Signed-off-by: Denys Vlasenko <dvlasenk@xxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/r/1428671219-29341-4-git-send-email-dvlasenk@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
 arch/x86/kernel/perf_regs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/perf_regs.c b/arch/x86/kernel/perf_regs.c
index 8157d39..da8cb98 100644
--- a/arch/x86/kernel/perf_regs.c
+++ b/arch/x86/kernel/perf_regs.c
@@ -135,6 +135,7 @@ void perf_get_regs_user(struct perf_regs *regs_user,
 	 * On 32-bit entry points, they are saved too except r8..r11.
 	 */
 	regs_user_copy->ip = user_regs->ip;
+	regs_user_copy->ax = user_regs->ax;
 	regs_user_copy->cx = user_regs->cx;
 	regs_user_copy->dx = user_regs->dx;
 	regs_user_copy->si = user_regs->si;
--
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