netdev - Re: [PATCH] ipvs: sctp: fix checksumming on snat and dnat handlers

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Message-ID: <51123C99.6010402@redhat.com>
Date:	Wed, 06 Feb 2013 12:20:57 +0100
From:	Daniel Borkmann <dborkman@...hat.com>
To:	David Laight <David.Laight@...LAB.COM>
CC:	Simon Horman <horms@...ge.net.au>,
	Pablo Neira Ayuso <pablo@...filter.org>,
	lvs-devel@...r.kernel.org, netdev@...r.kernel.org,
	netfilter-devel@...r.kernel.org,
	Wensong Zhang <wensong@...ux-vs.org>,
	Julian Anastasov <ja@....bg>
Subject: Re: [PATCH] ipvs: sctp: fix checksumming on snat and dnat handlers

On 02/06/2013 10:18 AM, David Laight wrote:
> If the NAT code has only modified a few bytes inside one of the SCTP
> chunks, then the crc can be modified by knowing the changed bits and
> the number of bytes to the end of the chunk (without looking at
> any other data bytes).
> That would (probably) be faster (may not really matter for INIT-ACK.

If applicable, this could be a follow-up optimization after the bug fix.
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