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* [PATCH] blkcg: annotate implicit fall through
@ 2019-01-14 20:31 Mathieu Malaterre
  2019-03-13 20:26 ` Mathieu Malaterre
  2019-03-13 20:31 ` Jens Axboe
  0 siblings, 2 replies; 3+ messages in thread
From: Mathieu Malaterre @ 2019-01-14 20:31 UTC (permalink / raw)
  To: Jens Axboe
  Cc: Mathieu Malaterre, Steven Rostedt, Ingo Molnar, linux-block,
	linux-kernel

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>
---
 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;
-- 
2.19.2


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2019-01-14 20:31 [PATCH] blkcg: annotate implicit fall through Mathieu Malaterre
2019-03-13 20:26 ` Mathieu Malaterre
2019-03-13 20:31 ` Jens Axboe

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