block/loop: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index bae4726..ea9debf 100644 (file)
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1609,6 +1609,7 @@ static int lo_compat_ioctl(struct block_device *bdev, fmode_t mode,
        case LOOP_GET_STATUS64:
        case LOOP_SET_STATUS64:
                arg = (unsigned long) compat_ptr(arg);
+               /* fall through */
        case LOOP_SET_FD:
        case LOOP_CHANGE_FD:
        case LOOP_SET_BLOCK_SIZE: