batman-adv: don't check compat version twice

Compatibility version is checked upon packet reception
before calling any handler. For this reason it does need to
be checked once more in the handler itself.
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>

net/batman-adv/bat_iv_ogm.c

@@ -1054,13 +1054,6 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 	}
 	rcu_read_unlock();
 
-	if (batadv_ogm_packet->header.version != BATADV_COMPAT_VERSION) {
-		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-			   "Drop packet: incompatible batman version (%i)\n",
-			   batadv_ogm_packet->header.version);
-		return;
-	}
-
 	if (is_my_addr) {
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
 			   "Drop packet: received my own broadcast (sender: %pM)\n",