--- a/mc_snooping.c
+++ b/mc_snooping.c
@@ -3105,7 +3105,6 @@ static void mc_mdb_cleanup(unsigned long
 		os_hlist_for_each_entry_rcu(mdb, mdbh, &mc->hash[i], hlist) {
 			struct mc_port_group *pg;
 			struct hlist_node *pgh;
-			struct net_device *port;
 			unsigned long expire_time = mc->membership_interval;
 
 			if (hlist_empty(&mdb->pslist)) {
@@ -3140,7 +3139,6 @@ static void mc_mdb_cleanup(unsigned long
 					else if (time_before(this_timer, next_timer))
 						next_timer = this_timer;
 				}
-				port = pg->port;
 			}
 		}
 	}