[tip:x86/asm] x86/compat, x86/perf: Don' t build perf_callchain_user32() on x32

[tip-bot for Brian Gerst <tipbot@zytor.com>]

Commit-ID:  10ed34935e7e828ce4ce566647a2d6b8240e4dee
Gitweb:     http://git.kernel.org/tip/10ed34935e7e828ce4ce566647a2d6b8240e4dee
Author:     Brian Gerst <brgerst@gmail.com>
AuthorDate: Mon, 22 Jun 2015 07:55:17 -0400
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Mon, 6 Jul 2015 15:28:57 +0200

x86/compat, x86/perf: Don't build perf_callchain_user32() on x32

perf_callchain_user32() is not needed for x32.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1434974121-32575-9-git-send-email-brgerst@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 3658de4..641413d 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -2196,7 +2196,7 @@ static unsigned long get_segment_base(unsigned int segment)
 	return get_desc_base(desc + idx);
 }
 
-#ifdef CONFIG_COMPAT
+#ifdef CONFIG_IA32_EMULATION
 
 #include <asm/compat.h>