netdev - Re: bridge: Do not send queries on multicast group leaves

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Message-Id: <20120404.211739.2070899876354223753.davem@davemloft.net>
Date:	Wed, 04 Apr 2012 21:17:39 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	herbert@...dor.hengli.com.au
Cc:	netdev@...r.kernel.org
Subject: Re: bridge: Do not send queries on multicast group leaves

From: Herbert Xu <herbert@...dor.hengli.com.au>
Date: Wed, 4 Apr 2012 19:01:20 +0800

> bridge: Do not send queries on multicast group leaves
> 
> As it stands the bridge IGMP snooping system will respond to
> group leave messages with queries for remaining membership.
> This is both unnecessary and undesirable.  First of all any
> multicast routers present should be doing this rather than us.
> What's more the queries that we send may end up upsetting other
> multicast snooping swithces in the system that are buggy.
> 
> In fact, we can simply remove the code that send these queries
> because the existing membership expiry mechanism doesn't rely
> on them anyway.
> 
> So this patch simply removes all code associated with group
> queries in response to group leave messages.
> 
> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

Applied and queued up for -stable, thanks Herbert.
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