netdev - Re: [RFC/PATCH] SO_NO

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Message-ID: <20071122023403.GA3409@gondor.apana.org.au>
Date:	Thu, 22 Nov 2007 10:34:03 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	YOSHIFUJI Hideaki / 吉藤英明 
	<yoshfuji@...ux-ipv6.org>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, David Miller <davem@...emloft.net>
Subject: Re: [RFC/PATCH] SO_NO_CHECK for IPv6

On Wed, Nov 21, 2007 at 07:17:40PM -0500, Jeff Garzik wrote:
>
> For those interested, I am dealing with a UDP app that already does very 
> strong checksumming and encryption, so additional software checksumming 
> at the lower layers is quite simply a waste of CPU cycles.  Hardware 
> checksumming is fine, as long as its "free."

No matter how strong your underlying checksumming is it's not
going to protect the IPv6 header is it :)

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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