ublk: remove the empty open and release block device operations

No need to define empty versions, they can just be left out.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20220721130916.1869719-4-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/drivers/block/ublk_drv.c b/drivers/block/ublk_drv.c
index 07913b5..deabcb2 100644 (file)
--- a/drivers/block/ublk_drv.c
+++ b/drivers/block/ublk_drv.c
@@ -208,19 +208,8 @@ static inline int ublk_queue_cmd_buf_size(struct ublk_device *ub, int q_id)
                        PAGE_SIZE);
 }
 
-static int ublk_open(struct block_device *bdev, fmode_t mode)
-{
-       return 0;
-}
-
-static void ublk_release(struct gendisk *disk, fmode_t mode)
-{
-}
-
 static const struct block_device_operations ub_fops = {
        .owner =        THIS_MODULE,
-       .open =         ublk_open,
-       .release =      ublk_release,
 };
 
 #define UBLK_MAX_PIN_PAGES     32