linux-kernel - [PATCH] metag/kernel/stacktrace.c: Use current_stack_pointer instead of current

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Message-ID: <COL130-W6386D692A858748147BC38B9560@phx.gbl>
Date:	Sat, 5 Sep 2015 21:58:43 +0800
From:	Chen Gang <xili_gchen_5257@...mail.com>
To:	"james.hogan@...tec.com" <james.hogan@...tec.com>,
	"linux-metag@...r.kernel.org" <linux-metag@...r.kernel.org>,
	kernel mailing list <linux-kernel@...r.kernel.org>
Subject: [PATCH] metag/kernel/stacktrace.c: Use current_stack_pointer
 instead  of current_sp


>From 89b00006f4ac64f5204752fd98998df9db058b6b Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen.5i5j@...il.com>
Date: Sat, 5 Sep 2015 17:29:23 +0800
Subject: [PATCH] metag/kernel/stacktrace.c: Use current_stack_pointer instead
 of current_sp

Since we have defined current_stack_pointer, current_sp is redudancy, so
remove it.

Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
---
 arch/metag/kernel/stacktrace.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/metag/kernel/stacktrace.c b/arch/metag/kernel/stacktrace.c
index 5510361..5db1176 100644
--- a/arch/metag/kernel/stacktrace.c
+++ b/arch/metag/kernel/stacktrace.c
@@ -165,11 +165,9 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 		frame.pc = thread_saved_pc(tsk);
 #endif
 	} else {
-		register unsigned long current_sp asm ("A0StP");
-
 		data.no_sched_functions = 0;
 		frame.fp = (unsigned long)__builtin_frame_address(0);
-		frame.sp = current_sp;
+		frame.sp = current_stack_pointer;
 		frame.lr = (unsigned long)__builtin_return_address(0);
 		frame.pc = (unsigned long)save_stack_trace_tsk;
 	}
-- 
1.9.3

 		 	   		  
Download attachment "0001-metag-kernel-stacktrace.c-Use-current_stack_pointer-.patch" of type "application/octet-stream" (1141 bytes)