linux-kernel - Re: [PATCH 4/7] swiotlb: Allow arch override of address_needs

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Date:	Wed, 8 Apr 2009 18:24:31 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc:	galak@...nel.crashing.org, hch@...radead.org,
	linux-kernel@...r.kernel.org, mingo@...e.hu, jeremy@...p.org,
	ian.campbell@...rix.com, beckyb@...nel.crashing.org
Subject: Re: [PATCH 4/7] swiotlb: Allow arch override of
	address_needs_mapping

On Thu, Apr 09, 2009 at 06:15:07AM +0900, FUJITA Tomonori wrote:
> ia64 and x86_64 use swiotlb but neither need this function. And
> neither need any above __weak. They were added for dom0 support.
> Yeah, swiotlb is much cleaner and better if we don't add dom0 support.

Agreed.  All these dom0 support patches look like a cat has been barfing
over the source code.
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