[DECNET]: Use htons() where appropriate.

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index b712d0b..1ae5efc 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -1551,7 +1551,7 @@
 			kfree_skb(skb);
 			return -ENODEV;
 		}
-		skb->protocol = __constant_htons(ETH_P_DNA_RT);
+		skb->protocol = htons(ETH_P_DNA_RT);
 		skb->dev = dev;
 		cb->src = fl.fld_src;
 		cb->dst = fl.fld_dst;