From: Mathieu Malaterre <malat@debian.org>
Date: Mon, 14 Jan 2019 20:31:13 +0000 (+0100)
Subject: blkcg: annotate implicit fall through
X-Git-Tag: for-5.1/block-post-20190315^0
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=refs%2Fheads%2Ffor-5.1%2Fblock-post;p=linux-2.6-block.git

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>
---

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;