netdev - Re: [IPoIB] Identify multicast packets and fix IGMP breakage V3

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Date:	Thu, 26 Aug 2010 18:57:09 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
cc:	rdreier@...co.com, linux-rdma@...r.kernel.org,
	ogerlitz@...taire.com, yosefe@...taire.com, netdev@...r.kernel.org
Subject: Re: [IPoIB] Identify multicast packets and fix IGMP breakage V3

On Thu, 26 Aug 2010, Jason Gunthorpe wrote:

> I think doing the memcmp only in the multicast path should be
> reasonable overhead wise.

Thats is not always possible. Here the multicast path is the
default path that is taken 99% of the time.

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