[Bridge] [PATCH net-next] bridge: implement multicast fast leave

[Stephen Hemminger]

On Mon,  3 Dec 2012 22:36:03 +0800
Cong Wang <amwang at redhat.com> wrote:

> 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 at gondor.apana.org.au>
> Cc: Stephen Hemminger <shemminger at vyatta.com>
> Cc: "David S. Miller" <davem at davemloft.net>
> Signed-off-by: Cong Wang <amwang at redhat.com>

I like the feature, and it looks like an oversight in the initial design.
Why is this not the default, adding more options obscures it.