dm mpath: avoid that building with W=1 causes gcc 7 to complain about fall-through

Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Bart Van Assche 2017-08-09 11:32:13 -07:00 • committed by Mike Snitzer
commit 7b06e09a6d