linux-kernel - [PATCH v3] LoongArch: Fixup do_ri csr

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Message-Id: <20220926122727.2310118-1-yijun@loongson.cn>
Date:   Mon, 26 Sep 2022 20:27:27 +0800
From:   Jun Yi <yijun@...ngson.cn>
To:     Huacai Chen <chenhuacai@...nel.org>,
        WANG Xuerui <kernel@...0n.name>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        Qing Zhang <zhangqing@...ngson.cn>,
        Guo Ren <guoren@...nel.org>, Mao Bibo <maobibo@...ngson.cn>,
        Jianmin Lv <lvjianmin@...ngson.cn>
Cc:     loongarch@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [PATCH v3] LoongArch: Fixup do_ri csr_era

csr_era of pt_regs in do_ri should not add 4 to point to the
next instruction.

Signed-off-by: Jun Yi <yijun@...ngson.cn>
---
 arch/loongarch/kernel/traps.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/loongarch/kernel/traps.c b/arch/loongarch/kernel/traps.c
index aa1c95aaf595..ec888eda3d45 100644
--- a/arch/loongarch/kernel/traps.c
+++ b/arch/loongarch/kernel/traps.c
@@ -477,8 +477,6 @@ asmlinkage void noinstr do_ri(struct pt_regs *regs)
 
 	die_if_kernel("Reserved instruction in kernel code", regs);
 
-	compute_return_era(regs);
-
 	if (unlikely(get_user(opcode, era) < 0)) {
 		status = SIGSEGV;
 		current->thread.error_code = 1;
-- 
2.31.1