From: David Miller <davem@davemloft.net>
To: akpm@linux-foundation.org
Cc: samuel.thibault@ens-lyon.org, hpa@zytor.com,
linux-kernel@vger.kernel.org, mingo@elte.hu, tglx@linutronix.de,
andi@firstfloor.org, netdev@vger.kernel.org
Subject: Re: [PATCH,TRIVIAL] Fix csum_ipv6_magic asm memory clobber
Date: Wed, 30 Sep 2009 16:22:33 -0700 (PDT) [thread overview]
Message-ID: <20090930.162233.208543104.davem@davemloft.net> (raw)
In-Reply-To: <20090930161939.8c6d140a.akpm@linux-foundation.org>
From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 30 Sep 2009 16:19:39 -0700
> From: Samuel Thibault <samuel.thibault@ens-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@ens-lyon.org>
> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
I'm happy to see this go in via the x86 tree, and thus:
Acked-by: David S. Miller <davem@davemloft.net>
next prev parent reply other threads:[~2009-09-30 23:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090926192748.GX7681@const.famille.thibault.fr>
[not found] ` <20090930154044.0c7ace16.akpm@linux-foundation.org>
[not found] ` <4AC3DF7B.5060407@zytor.com>
[not found] ` <20090930230138.GZ6451@const.famille.thibault.fr>
2009-09-30 23:19 ` [PATCH,TRIVIAL] Fix csum_ipv6_magic asm memory clobber Andrew Morton
2009-09-30 23:22 ` David Miller [this message]
2009-09-30 23:45 ` H. Peter Anvin
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