Commit-ID:  43aa378b41700650e4ddbd068650f9fe4ab496df
Gitweb:     https://git.kernel.org/tip/43aa378b41700650e4ddbd068650f9fe4ab496df
Author:     Gustavo A. R. Silva <gust...@embeddedor.com>
AuthorDate: Tue, 12 Feb 2019 14:54:30 -0600
Committer:  Ingo Molnar <mi...@kernel.org>
CommitDate: Sat, 9 Mar 2019 14:10:32 +0100

perf/core: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

This patch fixes the following warning:

  kernel/events/core.c: In function ‘perf_event_parse_addr_filter’:
  kernel/events/core.c:9154:11: warning: this statement may fall through 
[-Wimplicit-fallthrough=]
      kernel = 1;
      ~~~~~~~^~~
  kernel/events/core.c:9156:3: note: here
     case IF_SRC_FILEADDR:
     ^~~~

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva <gust...@embeddedor.com>
Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Arnaldo Carvalho de Melo <a...@kernel.org>
Cc: Arnaldo Carvalho de Melo <a...@redhat.com>
Cc: Borislav Petkov <b...@alien8.de>
Cc: Dave Hansen <dave.han...@linux.intel.com>
Cc: H. Peter Anvin <h...@zytor.com>
Cc: Jiri Olsa <jo...@redhat.com>
Cc: Kees Cook <keesc...@chromium.org>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Rik van Riel <r...@surriel.com>
Cc: Stephane Eranian <eran...@google.com>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: Vince Weaver <vincent.wea...@maine.edu>
Link: https://lkml.kernel.org/r/20190212205430.GA8446@embeddedor
Signed-off-by: Ingo Molnar <mi...@kernel.org>
---
 kernel/events/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 5f59d848171e..68ff130b99e7 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -9174,6 +9174,7 @@ 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:

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