vxlan: use htonl when snooping for loopback address

Currently "bridge fdb show dev vxlan0" lists loopback address as
"1.0.0.127". Using htonl(INADDR_LOOPBACK) rather than passing it
directly to vxlan_snoop fixes the problem.

Signed-off-by: Mike Rapoport <[e-mail]>
Acked-by: Cong Wang <[e-mail]>
Acked-by: Stephen Hemminger <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/vxlan.c

···
 	__skb_pull(skb, skb_network_offset(skb));
 
 	if (dst_vxlan->flags & VXLAN_F_LEARN)
-		vxlan_snoop(skb->dev, INADDR_LOOPBACK, eth_hdr(skb)->h_source);
+		vxlan_snoop(skb->dev, htonl(INADDR_LOOPBACK),
+			    eth_hdr(skb)->h_source);
 
 	u64_stats_update_begin(&tx_stats->syncp);
 	tx_stats->tx_packets++;