batman-adv: Prefix packet defines with BATADV_

Reported-by: Martin Hundebøll <martin@hundeboll.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index c1ba6e2..3401084 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -263,6 +263,7 @@
 {
 	struct bat_priv *bat_priv;
 	struct net_device *soft_iface;
+	__be16 ethertype = __constant_htons(BATADV_ETH_P_BATMAN);
 	int ret;
 
 	if (hard_iface->if_status != IF_NOT_IN_USE)
@@ -309,7 +310,7 @@
 	hard_iface->if_status = IF_INACTIVE;
 	batadv_orig_hash_add_if(hard_iface, bat_priv->num_ifaces);
 
-	hard_iface->batman_adv_ptype.type = __constant_htons(ETH_P_BATMAN);
+	hard_iface->batman_adv_ptype.type = ethertype;
 	hard_iface->batman_adv_ptype.func = batadv_batman_skb_recv;
 	hard_iface->batman_adv_ptype.dev = hard_iface->net_dev;
 	dev_add_pack(&hard_iface->batman_adv_ptype);