block/rnbd-clt: Remove some arguments from rnbd_client_setup_device

Remove them since both sess and idx can be dereferenced from dev. And
sess is not used in the function.

Signed-off-by: Guoqing Jiang <guoqing.jiang@gmx.com>
Reviewed-by: Danil Kipnis <danil.kipnis@cloud.ionos.com>
Signed-off-by: Gioh Kim <gi-oh.kim@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Link: https://lore.kernel.org/r/20210419073722.15351-5-gi-oh.kim@ionos.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/block/rnbd/rnbd-clt.c

@@ -1354,10 +1354,9 @@ static void rnbd_clt_setup_gen_disk(struct rnbd_clt_dev *dev, int idx)
 		blk_queue_flag_set(QUEUE_FLAG_NONROT, dev->queue);
 }
 
-static int rnbd_client_setup_device(struct rnbd_clt_session *sess,
+static int rnbd_client_setup_device(struct rnbd_clt_dev *dev)
-				     struct rnbd_clt_dev *dev, int idx)
 {
-	int err;
+	int err, idx = dev->clt_device_id;
 
 	dev->size = dev->nsectors * dev->logical_block_size;
 
@@ -1535,7 +1534,7 @@ struct rnbd_clt_dev *rnbd_clt_map_device(const char *sessname,
 	mutex_lock(&dev->lock);
 	pr_debug("Opened remote device: session=%s, path='%s'\n",
 		 sess->sessname, pathname);
-	ret = rnbd_client_setup_device(sess, dev, dev->clt_device_id);
+	ret = rnbd_client_setup_device(dev);
 	if (ret) {
 		rnbd_clt_err(dev,
 			      "map_device: Failed to configure device, err: %d\n",