From: AKASHI Takahiro <takahiro.akashi@linaro.org>
Date: Sat, 15 Mar 2014 05:40:43 +0000 (+0900)
Subject: arm64: Add 'notrace' attribute to unwind_frame() for ftrace
X-Git-Tag: firefly_0821_release~3680^2~36^2~52^2~8
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=8370369c5c33b9d573575249f080a905323d7eb4;p=firefly-linux-kernel-4.4.55.git

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@arm.com>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---

diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index d25459ff57fc..03dd5a2e2435 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;