bridge: disable snooping if there is no querier

[karo-tx-linux.git] / net / bridge / br_input.c

diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 1b8b8b824cd766b05665e1d89f0e1394abdfbe2f..8c561c0aa636e49615b13e267c98e4e5bdce1a23 100644 (file)
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -101,7 +101,8 @@ int br_handle_frame_finish(struct sk_buff *skb)
                unicast = false;
        } else if (is_multicast_ether_addr(dest)) {
                mdst = br_mdb_get(br, skb, vid);
-               if (mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) {
+               if ((mdst || BR_INPUT_SKB_CB_MROUTERS_ONLY(skb)) &&
+                   br_multicast_querier_exists(br)) {
                        if ((mdst && mdst->mglist) ||
                            br_multicast_is_router(br))
                                skb2 = skb;