linux-kernel - [PATCH 055/141] uprobes/x86: Fix fall-through warnings for Clang

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Message-ID: <aebe7ddf558d3804781345a7fc20a7b1472acdb5.1605896059.git.gustavoars@kernel.org>
Date:   Fri, 20 Nov 2020 12:32:37 -0600
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org,
        linux-hardening@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>
Subject: [PATCH 055/141] uprobes/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 letting the code fall
through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
 arch/x86/kernel/uprobes.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
index 3fdaa042823d..90f44f44c209 100644
--- a/arch/x86/kernel/uprobes.c
+++ b/arch/x86/kernel/uprobes.c
@@ -1015,6 +1015,8 @@ int arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val,
 		if (uprobe_post_sstep_notifier(regs))
 			ret = NOTIFY_STOP;
 
+		break;
+
 	default:
 		break;
 	}
-- 
2.27.0