netdev - Re: Missing csum_fold() in ip6t

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Date:	Mon, 12 Feb 2007 23:47:21 +0900 (JST)
From:	YOSHIFUJI Hideaki / 吉藤英明 
	<yoshfuji@...ux-ipv6.org>
To:	adobriyan@...il.com
Cc:	netdev@...r.kernel.org, netfilter-devel@...ts.netfilter.org,
	yoshfuji@...ux-ipv6.org
Subject: Re: Missing csum_fold() in ip6t_HL.c ?

In article <20060915103755.GB5286@...tell.zuzino.mipt.ru> (at Fri, 15 Sep 2006 14:37:56 +0400), Alexey Dobriyan <adobriyan@...il.com> says:

> It looks like "diffs" array is write-only. It also looks like ipv4
> occurences use some csum_fold() trickery. Was is forgotten here? Should
> "diffs" be removed?

Since we do not have checksum in IPv6 header, we do not need to
adjust checksum when we touch hoplimit.

So, just removing it should be safe.

--yoshfuji
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