From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH 02/11] sky2: fix DMA sync_single length error
Date: Wed, 20 Jan 2010 15:56:16 -0800 (PST)
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From: Jarek Poplawski <jarkao2@gmail.com>
Date: Thu, 21 Jan 2010 00:52:45 +0100

> On Wed, Jan 20, 2010 at 03:34:51PM -0800, David Miller wrote:
>> Whereas 1 patch in the 1 place in the DMA API implementation would fix
>> everything for everybody.
> 
> 1) As I mentioned earlier there were similar dmar errors reported with
> real oopses, but of course it might be unconnected. (But why risk...)

Show me the DMAR code that handles DMA SYNC requests.

There isn't any.

So it's impossible for this to fix things for DMAR users.