From: Huang Pei <huangpei@loongson.cn>
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>, ambrosehua@gmail.com
Cc: Bibo Mao <maobibo@loongson.cn>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mips@vger.kernel.org, linux-arch@vger.kernel.org,
linux-mm@kvack.org, Jiaxun Yang <jiaxun.yang@flygoat.com>,
Paul Burton <paulburton@kernel.org>,
Li Xuefeng <lixuefeng@loongson.cn>,
Yang Tiezhu <yangtiezhu@loongson.cn>,
Gao Juxin <gaojuxin@loongson.cn>,
Fuxin Zhang <zhangfx@lemote.com>, Huacai Chen <chenhc@lemote.com>
Subject: [PATCH] MIPS: fix kernel_stack_pointer()
Date: Fri, 29 Jan 2021 12:35:07 +0800 [thread overview]
Message-ID: <20210129043507.30488-1-huangpei@loongson.cn> (raw)
MIPS always save kernel stack pointer in regs[29]
Signed-off-by: Huang Pei <huangpei@loongson.cn>
---
arch/mips/include/asm/ptrace.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h
index 1e76774b36dd..daf3cf244ea9 100644
--- a/arch/mips/include/asm/ptrace.h
+++ b/arch/mips/include/asm/ptrace.h
@@ -53,7 +53,7 @@ struct pt_regs {
static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
{
- return regs->regs[31];
+ return regs->regs[29];
}
static inline void instruction_pointer_set(struct pt_regs *regs,
--
2.17.1
next reply other threads:[~2021-01-29 4:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-29 4:35 Huang Pei [this message]
2021-02-01 12:23 ` [PATCH] MIPS: fix kernel_stack_pointer() Thomas Bogendoerfer
2021-02-02 1:32 ` Huang Pei
2021-02-03 10:36 ` Thomas Bogendoerfer
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