Do not offload IGMP/MLD messages as it could lead to IGMP/MLD Reports being unintentionally flooded to Hosts. Instead, let the bridge decide where to send these IGMP/MLD messages. Fixes: 472111920f1c ("net: bridge: switchdev: allow the TX data plane forwarding to be offloaded") Signed-off-by: Joseph Huang --- net/bridge/br_switchdev.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/bridge/br_switchdev.c b/net/bridge/br_switchdev.c index 95d7355a0407..757c34bf5931 100644 --- a/net/bridge/br_switchdev.c +++ b/net/bridge/br_switchdev.c @@ -18,7 +18,8 @@ static bool nbp_switchdev_can_offload_tx_fwd(const struct net_bridge_port *p, return false; return (p->flags & BR_TX_FWD_OFFLOAD) && - (p->hwdom != BR_INPUT_SKB_CB(skb)->src_hwdom); + (p->hwdom != BR_INPUT_SKB_CB(skb)->src_hwdom) && + !br_multicast_igmp_type(skb); } bool br_switchdev_frame_uses_tx_fwd_offload(struct sk_buff *skb) -- 2.49.0