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

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Message-ID: <20081121172046.GF1386@amd.com>
Date:	Fri, 21 Nov 2008 18:20:46 +0100
From:	Joerg Roedel <joerg.roedel@....com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	David Woodhouse <dwmw2@...radead.org>,
	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, Nov 21, 2008 at 06:18:02PM +0100, Ingo Molnar wrote:
> 
> * David Woodhouse <dwmw2@...radead.org> wrote:
> 
> > On Fri, 2008-11-21 at 17:57 +0100, Joerg Roedel wrote:
> > > Yes, in principle we could move most of it to generic code. There is
> > > nothing architecture specific in it.
> > > Anybody who prefers this to be arch/x86 before moving it to lib/?
> > 
> > I think it's better to start off with a generic version, and test it 
> > on more than one architecture before feeding it upstream. That way, 
> > you know you aren't going to have to go back to the drawing board 
> > with it.
> 
> Joerg, i'd suggest to make the generic conceptual bits generic, and 
> add an HAVE_DMA_DEBUG_SUPPORT Kconfig bool flag to every architecture 
> that enables it. It needs active changes to every architecture that 
> supports this facility.

Ok, I will move the generic bits to lib/ and include/linux and let
architectures decide if they want to use it.

Joerg

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