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bridge: implement multicast fast leave

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V3: make it a flag
V2: make the toggle per-port

Fast leave allows bridge to immediately stops the multicast
traffic on the port receives IGMP Leave when IGMP snooping is enabled,
no timeouts are observed.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
This commit is contained in:
David S. Miller 2012-12-05 16:24:45 -05:00
parent 0d650ec75a
commit c2d3babfaf
5 changed files with 7 additions and 21 deletions
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2
net/bridge/br_multicast.c
View file

@ -1225,7 +1225,7 @@ static void br_multicast_leave_group(struct net_bridge *br,
if (!mp)
goto out;
if (port && port->multicast_fast_leave) {
if (port && (port->flags & BR_MULTICAST_FAST_LEAVE)) {
struct net_bridge_port_group __rcu **pp;
for (pp = &mp->ports;