linux-kernel - [tip:perf/urgent] tracing: Do not select FRAME

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Message-ID: <tip-8c9cf542b8a66c231747a550573d910daf17f0e9@git.kernel.org>
Date:	Thu, 22 Mar 2012 14:17:56 -0700
From:	tip-bot for Gerlando Falauto <gerlando.falauto@...mile.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	mingo@...hat.com, linux-kernel@...r.kernel.org, hpa@...or.com,
	mingo@...nel.org, fweisbec@...il.com, rostedt@...dmis.org,
	tglx@...utronix.de, gerlando.falauto@...mile.com
Subject: [tip:perf/urgent] tracing: Do not select FRAME_POINTER on PPC

Commit-ID:  8c9cf542b8a66c231747a550573d910daf17f0e9
Gitweb:     http://git.kernel.org/tip/8c9cf542b8a66c231747a550573d910daf17f0e9
Author:     Gerlando Falauto <gerlando.falauto@...mile.com>
AuthorDate: Mon, 27 Feb 2012 09:08:21 +0100
Committer:  Steven Rostedt <rostedt@...dmis.org>
CommitDate: Mon, 27 Feb 2012 08:45:11 -0500

tracing: Do not select FRAME_POINTER on PPC

On PowerPC, FUNCTION_TRACER selects FRAME_POINTER, even
though the architecture does not support it.

This causes the following warning:
warning: (LOCKDEP && FAULT_INJECTION_STACKTRACE_FILTER && LATENCYTOP && FUNCTION_TRACER && KMEMCHECK) selects FRAME_POINTER which has unmet direct dependencies (DEBUG_KERNEL && (CRIS || M68K || FRV || UML || AVR32 || SUPERH || BLACKFIN || MN10300) || ARCH_WANT_FRAME_POINTERS)

So remove the warning by adding the extra condition
"if !PPC" to FUNCTION_TRACER for FRAME_POINTER selection

Link: http://lkml.kernel.org/r/1330330101-8618-1-git-send-email-gerlando.falauto@keymile.com

Cc: Frederic Weisbecker <fweisbec@...il.com>
Cc: Ingo Molnar <mingo@...hat.com>
Signed-off-by: Gerlando Falauto <gerlando.falauto@...mile.com>
Signed-off-by: Steven Rostedt <rostedt@...dmis.org>
---
 kernel/trace/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index cd31345..a1d2849 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -141,7 +141,7 @@ if FTRACE
 config FUNCTION_TRACER
 	bool "Kernel Function Tracer"
 	depends on HAVE_FUNCTION_TRACER
-	select FRAME_POINTER if !ARM_UNWIND && !S390 && !MICROBLAZE
+	select FRAME_POINTER if !ARM_UNWIND && !PPC && !S390 && !MICROBLAZE
 	select KALLSYMS
 	select GENERIC_TRACER
 	select CONTEXT_SWITCH_TRACER
--
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