linux-kernel - [PATCH v8 3/8] arm64: Add 'notrace' attribute to unwind

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Message-Id: <1398851676-16389-4-git-send-email-takahiro.akashi@linaro.org>
Date:	Wed, 30 Apr 2014 18:54:31 +0900
From:	AKASHI Takahiro <takahiro.akashi@...aro.org>
To:	rostedt@...dmis.org, fweisbec@...il.com, mingo@...hat.com,
	catalin.marinas@....com, will.deacon@....com,
	tim.bird@...ymobile.com
Cc:	gkulkarni@...iumnetworks.com, dsaxena@...aro.org, arndb@...db.de,
	linux-arm-kernel@...ts.infradead.org,
	linaro-kernel@...ts.linaro.org, linux-kernel@...r.kernel.org,
	AKASHI Takahiro <takahiro.akashi@...aro.org>
Subject: [PATCH v8 3/8] arm64: Add 'notrace' attribute to unwind_frame() for ftrace

walk_stackframe() calls unwind_frame(), and if walk_stackframe() is
"notrace", unwind_frame() should be also "notrace".

Acked-by: Will Deacon <will.deacon@....com>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@...aro.org>
---
 arch/arm64/kernel/stacktrace.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index 38f0558..55437ba 100644
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@@ -35,7 +35,7 @@
  *	ldp	x29, x30, [sp]
  *	add	sp, sp, #0x10
  */
-int unwind_frame(struct stackframe *frame)
+int notrace unwind_frame(struct stackframe *frame)
 {
 	unsigned long high, low;
 	unsigned long fp = frame->fp;
-- 
1.7.9.5

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