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riscv: stacktrace: Move register keyword to beginning of declaration

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Using global sp_in_global directly to fix the following warning,

arch/riscv/kernel/stacktrace.c:31:3: warning: ‘register’ is not at beginning of declaration [-Wold-style-declaration]
31 |   const register unsigned long current_sp = sp_in_global;
   |   ^~~~~

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
This commit is contained in:
Kefeng Wang 2021-01-14 10:46:57 +08:00 committed by Palmer Dabbelt
parent 0983834a83
commit dec822771b
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1 changed files with 2 additions and 3 deletions
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5
arch/riscv/kernel/stacktrace.c
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@ -14,7 +14,7 @@
#include <asm/stacktrace.h>
register unsigned long sp_in_global __asm__("sp");
register const unsigned long sp_in_global __asm__("sp");
#ifdef CONFIG_FRAME_POINTER
@ -28,9 +28,8 @@ void notrace walk_stackframe(struct task_struct *task, struct pt_regs *regs,
sp = user_stack_pointer(regs);
pc = instruction_pointer(regs);
} else if (task == NULL || task == current) {
const register unsigned long current_sp = sp_in_global;
fp = (unsigned long)__builtin_frame_address(0);
sp = current_sp;
sp = sp_in_global;
pc = (unsigned long)walk_stackframe;
} else {
/* task blocked in __switch_to */