linux-kernel - Re: [PATCH 0/10] DMA-API debugging facility

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Message-Id: <1227286492.4901.208.camel@macbook.infradead.org>
Date:	Fri, 21 Nov 2008 16:54:52 +0000
From:	David Woodhouse <dwmw2@...radead.org>
To:	Joerg Roedel <joerg.roedel@....com>
Cc:	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>, netdev@...r.kernel.org,
	iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/10] DMA-API debugging facility

On Fri, 2008-11-21 at 17:26 +0100, Joerg Roedel wrote:
> this patchset introduces code to debug drivers usage of the DMA-API.
> Tests with hardware IOMMUs have shown several bugs in drivers
> regarding the usage of that API.
> Problems were found especially in network card drivers.

This is really useful -- but surely it shouldn't be x86-specific?

All the code except the hooks in the architecture's dma_map_single() et
al functions could be generic, couldn't it?

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse@...el.com                              Intel Corporation

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