linux-kernel - [tip: perf/core] kprobes/x86: Fix fall-through warnings for Clang

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Date:   Wed, 09 Dec 2020 18:44:39 -0000
From:   "tip-bot2 for Gustavo A. R. Silva" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: perf/core] kprobes/x86: Fix fall-through warnings for Clang

The following commit has been merged into the perf/core branch of tip:

Commit-ID:     e689b300c99ca2dd80d3f662e19499bba27cda09
Gitweb:        https://git.kernel.org/tip/e689b300c99ca2dd80d3f662e19499bba27cda09
Author:        Gustavo A. R. Silva <gustavoars@...nel.org>
AuthorDate:    Fri, 20 Nov 2020 12:30:44 -06:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Wed, 09 Dec 2020 17:08:58 +01:00

kprobes/x86: Fix fall-through warnings for Clang

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
---
 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 39f7d8c..a65e9e9 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -864,6 +864,7 @@ static void resume_execution(struct kprobe *p, struct pt_regs *regs,
 			p->ainsn.boostable = true;
 			goto no_change;
 		}
+		break;
 	default:
 		break;
 	}