linux-kernel - [PATCH 5.10 1/9] kprobes/x86: Fix fall-through warnings for Clang

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Message-ID: <20230705064653.226811-2-lihuafei1@huawei.com>
Date:   Wed, 5 Jul 2023 14:46:45 +0800
From:   Li Huafei <lihuafei1@...wei.com>
To:     <stable@...r.kernel.org>
CC:     <gregkh@...uxfoundation.org>, <mhiramat@...nel.org>,
        <tglx@...utronix.de>, <mingo@...hat.com>, <bp@...en8.de>,
        <x86@...nel.org>, <hpa@...or.com>, <sashal@...nel.org>,
        <peterz@...radead.org>, <linux-kernel@...r.kernel.org>,
        <xukuohai@...wei.com>, <natechancellor@...il.com>,
        <ndesaulniers@...gle.com>, <rostedt@...dmis.org>,
        <weiyongjun1@...wei.com>, <gustavoars@...nel.org>,
        <namit@...are.com>, <laijs@...ux.alibaba.com>,
        <clang-built-linux@...glegroups.com>, <lihuafei1@...wei.com>
Subject: [PATCH 5.10 1/9] kprobes/x86: Fix fall-through warnings for Clang

From: "Gustavo A. R. Silva" <gustavoars@...nel.org>

[ Upstream commit e689b300c99ca2dd80d3f662e19499bba27cda09 ]

In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding a break statement instead of just letting the code
fall through to the next case.

Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Li Huafei <lihuafei1@...wei.com>
---
 arch/x86/kernel/kprobes/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 5de757099186..ed9a4fb87168 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -880,6 +880,7 @@ static void resume_execution(struct kprobe *p, struct pt_regs *regs,
 			p->ainsn.boostable = true;
 			goto no_change;
 		}
+		break;
 	default:
 		break;
 	}
-- 
2.17.1