[TUN]: Make type explicit in min() usage.

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/tun.c

@@ -365,7 +365,8 @@ static ssize_t tun_chr_readv(struct file *file, const struct iovec *iv,
 		 *   - we are multicast promiscous.
 		 *   - we belong to the multicast group.
 		 */
-		memcpy(addr, skb->data, min(sizeof addr, skb->len));
+		memcpy(addr, skb->data,
+		       min_t(size_t, sizeof addr, skb->len));
 		bit_nr = ether_crc(sizeof addr, addr) >> 26;
 		if ((tun->if_flags & IFF_PROMISC) ||
 				memcmp(addr, tun->dev_addr, sizeof addr) == 0 ||