commit f6d85f04e29859dd3ea65395c05925da352dae89
author Mathieu Malaterre <malat@debian.org> Mon Jan 14 21:31:13 2019 +0100
committer Jens Axboe <axboe@kernel.dk> Wed Mar 13 14:31:12 2019 -0600
tree 8c9d6ac69c0eed5098cca00d9516535c860aad72
parent 602d674ce90f64ac135452fb9b2b058acb53b226

blkcg: 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/trace/blktrace.c:725:9: warning: this statement may fall through [-Wimplicit-fallthrough=]

Signed-off-by: Mathieu Malaterre <malat@debian.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

kernel/trace/blktrace.c

diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index fac0ddf..e1c6d79 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -723,6 +723,7 @@
 #endif
 	case BLKTRACESTART:
 		start = 1;
+		/* fall through */
 	case BLKTRACESTOP:
 		ret = __blk_trace_startstop(q, start);
 		break;