From mboxrd@z Thu Jan 1 00:00:00 1970 From: gang.chen.5i5j-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Subject: [PATCH] metag/kernel/stacktrace.c: Use current_stack_pointer instead of current_sp Date: Sat, 5 Sep 2015 17:33:57 +0800 Message-ID: <1441445637-5385-1-git-send-email-gang.chen.5i5j@gmail.com> Return-path: Sender: linux-metag-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: james.hogan-1AXoQHu6uovQT0dZR+AlfA@public.gmane.org Cc: linux-metag-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, gchen_5i5j-0GSiYjBpcig@public.gmane.org, Chen Gang From: Chen Gang Since we have defined current_stack_pointer, current_sp is redudancy, so remove it. Signed-off-by: Chen Gang --- 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