null_blk: Don't bother validating blocksize

The block queue limits validation does this for us now.

Reviewed-by: Christoph Hellwig <[email protected]>
Signed-off-by: John Garry <[email protected]>
Reviewed-by: Zhu Yanjun <[email protected]>
Reviewed-by: Damien Le Moal <[email protected]>
Acked-by: Michael S. Tsirkin <[email protected]>
Reviewed-by: Stefan Hajnoczi <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>

Author: johnpgarry

drivers/block/null_blk/main.c

@@ -1831,9 +1831,6 @@ static int null_validate_conf(struct nullb_device *dev)
 		dev->queue_mode = NULL_Q_MQ;
 	}
 
-	if (blk_validate_block_size(dev->blocksize))
-		return -EINVAL;
-
 	if (dev->use_per_node_hctx) {
 		if (dev->submit_queues != nr_online_nodes)
 			dev->submit_queues = nr_online_nodes;