linux-kernel - [PATCH] perf/core: annotate implicit fall through

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Message-Id: <20190114203701.19010-1-malat@debian.org>
Date:   Mon, 14 Jan 2019 21:37:01 +0100
From:   Mathieu Malaterre <malat@...ian.org>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     Mathieu Malaterre <malat@...ian.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] perf/core: annotate implicit fall through

There is a plan to build the kernel with -Wimplicit-fallthrough and
this place in the code produced a warning (W=1).

This commit remove the following warning:

  kernel/events/core.c:8945:11: warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Mathieu Malaterre <malat@...ian.org>
---
 kernel/events/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 3cd13a30f732..11bf8bf606ee 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -8943,6 +8943,7 @@ perf_event_parse_addr_filter(struct perf_event *event, char *fstr,
 		case IF_SRC_KERNELADDR:
 		case IF_SRC_KERNEL:
 			kernel = 1;
+			/* fall through */
 
 		case IF_SRC_FILEADDR:
 		case IF_SRC_FILE:
-- 
2.19.2