From 3f2c9405fa3a1794b44d0b856ebaad71c4d34d1f Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Thu, 17 Aug 2017 16:23:10 -0700 Subject: [PATCH] xen-blkback: Avoid that gcc 7 warns about fall-through when building with W=1 Signed-off-by: Bart Van Assche Reviewed-by: Hannes Reinecke Cc: Konrad Rzeszutek Wilk Cc: Roger Pau Monn303251 Cc: xen-devel@lists.xenproject.org Signed-off-by: Jens Axboe --- drivers/block/xen-blkback/blkback.c | 1 + drivers/block/xen-blkback/xenbus.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 68157a8..5f3a813 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -1251,6 +1251,7 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring, break; case BLKIF_OP_WRITE_BARRIER: drain = true; + /* fall through */ case BLKIF_OP_FLUSH_DISKCACHE: ring->st_f_req++; operation = REQ_OP_WRITE; diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 792da68..88eaea6 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -810,7 +810,8 @@ static void frontend_changed(struct xenbus_device *dev, xenbus_switch_state(dev, XenbusStateClosed); if (xenbus_dev_is_online(dev)) break; - /* fall through if not online */ + /* fall through */ + /* if not online */ case XenbusStateUnknown: /* implies xen_blkif_disconnect() via xen_blkbk_remove() */ device_unregister(&dev->dev); -- 2.7.4