net: bridge: vlan: enable mcast snooping for existing master vlans

We always create a vlan with enabled mcast snooping, so when the user turns on per-vlan mcast contexts they'll get consistent behaviour with the current situation, but one place wasn't updated when a bridge/master vlan which already exists (created due to port vlans) is being added as real bridge vlan (BRIDGE_VLAN_INFO_BRENTRY). We need to enable mcast snooping for that vlan when that happens. Fixes: 7b54aaa ("net: bridge: multicast: add vlan state initialization and control") Signed-off-by: Nikolay Aleksandrov <[email protected]> Signed-off-by: David S. Miller <[email protected]>
amitbern-aws · Aug 17, 2021 · b92dace · b92dace
1 parent 2cb5942
commit b92dace
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
@@ -694,6 +694,7 @@ static int br_vlan_add_existing(struct net_bridge *br,
 		vlan->flags |= BRIDGE_VLAN_INFO_BRENTRY;
 		vg->num_vlans++;
 		*changed = true;
+		br_multicast_toggle_one_vlan(vlan, true);
 	}
 
 	if (__vlan_add_flags(vlan, flags))