netdev - Re: inet: Remove bogus IGMPv3 report handling

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Message-Id: <20100212.114256.226910552.davem@davemloft.net>
Date:	Fri, 12 Feb 2010 11:42:56 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	herbert@...dor.apana.org.au
Cc:	netdev@...r.kernel.org
Subject: Re: inet: Remove bogus IGMPv3 report handling

From: Herbert Xu <herbert@...dor.apana.org.au>
Date: Mon, 8 Feb 2010 14:26:30 +1100

> inet: Remove bogus IGMPv3 report handling
> 
> Currently we treat IGMPv3 reports as if it were an IGMPv2/v1 report.
> This is broken as IGMPv3 reports are formatted differently.  So we
> end up suppressing a bogus multicast group (which should be harmless
> as long as the leading reserved field is zero).
> 
> In fact, IGMPv3 does not allow membership report suppression so
> we should simply ignore IGMPv3 membership reports as a host.
> 
> This patch does exactly that.  I kept the case statement for it
> so people won't accidentally add it back thinking that we overlooked
> this case.
> 
> Signed-off-by: Herbert Xu <herbert@...dor.apana.org.au>

Applied to net-2.6 and queued up for -stable, thanks!
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