In preparation to enabling -Wimplicit-fallthrough, mark switch
cases where we are expecting to fall through.
This patch fixes the following warning:
kernel/trace/blktrace.c: In function ‘blk_trace_ioctl’:
kernel/trace/blktrace.c:725:9: warning: this statement may fall through
[-Wimplicit-fallthrough=]
start = 1;
~~~~~~^~~
kernel/trace/blktrace.c:726:2: note: here
case BLKTRACESTOP:
^~~~
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>
---
kernel/trace/blktrace.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index fac0ddf8a8e2..e1c6d79fb4cc 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -723,6 +723,7 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned
cmd, char __user *arg)
#endif
case BLKTRACESTART:
start = 1;
+ /* fall through */
case BLKTRACESTOP:
ret = __blk_trace_startstop(q, start);
break;
--
2.20.1
