linux-kernel - Re: [PATCH] lib/checksum.c: Fix another endianess bug

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Message-ID: <8bd0f97a0910241551x7216c2b4sb8518e1a12ff346e@mail.gmail.com>
Date:	Sat, 24 Oct 2009 18:51:20 -0400
From:	Mike Frysinger <vapier.adi@...il.com>
To:	Matt Fleming <matt@...sole-pimps.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] lib/checksum.c: Fix another endianess bug

On Sat, Oct 24, 2009 at 07:59, Matt Fleming wrote:
> On Mon, Sep 28, 2009 at 04:39:38PM -0400, Mike Frysinger wrote:
>> On Mon, Sep 28, 2009 at 04:07, Matt Fleming wrote:
>> > On Fri, Sep 25, 2009 at 01:00:25PM -0400, Mike Frysinger wrote:
>> >> On Fri, Sep 25, 2009 at 10:20, Matt Fleming wrote:
>> >> > From: Matt Fleming <matthew.fleming@...tec.com>
>> >> >
>> >> > This fix allows the generic checksum code to work on my little endian
>> >> > system. The previous fix was not enough, as "buff" is a big-endian
>> >> > value. Without this patch I see malformed TCP packets.
>> >>
>> >> can you try this one ?
>> >> http://lkml.org/lkml/2009/6/23/597
>> >
>> > Yep, that one works fine also. Thanks, Mike. Who's going to pick this
>> > up? I'm guessing this commit is also applicable for stable? Though, I
>> > don't know if there are any little-endian users of this code in stable.
>>
>> i'm converting Blackfin to it now that the LE issues should be fixed,
>> but i'm going to hold off on pushing the change until it can be tested
>>
>> as for picking up the fix, let's ask Andrew ...
>
> Ping?
>
> Andrew, Arnd, could one of you pick this up?

we've been using the generic checksum code with this fix on Blackfin
boards for the last month and havent noticed any regressions so far
...
-mike
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