netdev - Re: [PATCH,TRIVIAL] Fix csum_ipv6

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Date:	Wed, 30 Sep 2009 16:45:33 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	David Miller <davem@...emloft.net>
CC:	akpm@...ux-foundation.org, samuel.thibault@...-lyon.org,
	linux-kernel@...r.kernel.org, mingo@...e.hu, tglx@...utronix.de,
	andi@...stfloor.org, netdev@...r.kernel.org
Subject: Re: [PATCH,TRIVIAL] Fix csum_ipv6_magic asm memory clobber

On 09/30/2009 04:22 PM, David Miller wrote:
> From: Andrew Morton <akpm@...ux-foundation.org>
> Date: Wed, 30 Sep 2009 16:19:39 -0700
> 
>> From: Samuel Thibault <samuel.thibault@...-lyon.org>
>>
>> Just like ip_fast_csum, the assembly snippet in csum_ipv6_magic needs a
>> memory clobber, as it is only passed the address of the buffer, not a
>> memory reference to the buffer itself.
>>
>> This caused failures in Hurd's pfinetv4 when we tried to compile it with
>> gcc-4.3 (bogus checksums).
>>
>> Signed-off-by: Samuel Thibault <samuel.thibault@...-lyon.org>
>> Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
> 
> I'm happy to see this go in via the x86 tree, and thus:
> 
> Acked-by: David S. Miller <davem@...emloft.net>

I'll put it in x86/urgent tonight or early tomorrow morning (just about
to leave for the airport.)

	-hpa

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