From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Thu, 18 Mar 2010 22:47:01 +0000 (+0100)
Subject: perf: Drop the frame reliablity check
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6f4dee06fbf0133917f3d76fa3fb50e18b10c1f5;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

perf: Drop the frame reliablity check

It is useless now that we have a pure stack frame
walker, as given addr are always reliable.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 65e9c5efb618..353a174adb44 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1602,8 +1602,7 @@ static void backtrace_address(void *data, unsigned long addr, int reliable)
 {
 	struct perf_callchain_entry *entry = data;
 
-	if (reliable)
-		callchain_store(entry, addr);
+	callchain_store(entry, addr);
 }
 
 static const struct stacktrace_ops backtrace_ops = {