From: Kefeng Wang <wangkefeng.wang@huawei.com>
Date: Wed, 17 Mar 2021 15:08:38 +0000 (+0800)
Subject: riscv: Drop const annotation for sp
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=23c1075ae83adaf14ea3f727c40368799f80bccc;p=linux.git

riscv: Drop const annotation for sp

The const annotation should not be used for 'sp', or it will
become read only and lead to bad stack output.

Fixes: dec822771b01 ("riscv: stacktrace: Move register keyword to beginning of declaration")
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
---

diff --git a/arch/riscv/kernel/stacktrace.c b/arch/riscv/kernel/stacktrace.c
index 3f893c9d9d85a..2b3e0cb90d789 100644
--- a/arch/riscv/kernel/stacktrace.c
+++ b/arch/riscv/kernel/stacktrace.c
@@ -14,7 +14,7 @@
 
 #include <asm/stacktrace.h>
 
-register const unsigned long sp_in_global __asm__("sp");
+register unsigned long sp_in_global __asm__("sp");
 
 #ifdef CONFIG_FRAME_POINTER