diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 8922b8864487..504c20a2f33e 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -315,7 +315,8 @@ static int nbd_set_size(struct nbd_device *nbd, loff_t bytesize,
 {
 	if (!blksize)
 		blksize = 1u << NBD_DEF_BLKSIZE_BITS;
-	if (blksize < 512 || blksize > PAGE_SIZE || !is_power_of_2(blksize))
+
+	if (blk_validate_block_size(blksize))
 		return -EINVAL;
 
 	nbd->config->bytesize = bytesize;