linux-kernel - Re: [PATCH char-misc-next v2 04/22] iommu: Allow iova to be used without requiring IOMMU

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Date:	Mon, 05 Oct 2015 10:38:43 -0700
From:	Sudeep Dutt <sudeep.dutt@...el.com>
To:	"Woodhouse, David" <david.woodhouse@...el.com>
Cc:	Sudeep Dutt <sudeep.dutt@...el.com>,
	"Dixit, Ashutosh" <ashutosh.dixit@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"Rao, Nikhil" <nikhil.rao@...el.com>,
	"joro@...tes.org" <joro@...tes.org>,
	"sakari.ailus@...ux.intel.com" <sakari.ailus@...ux.intel.com>,
	"iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>
Subject: Re: [PATCH char-misc-next v2 04/22] iommu: Allow iova to be used
 without requiring IOMMU_SUPPORT

On Mon, 2015-10-05 at 03:50 -0700, Woodhouse, David wrote:
> On Tue, 2015-09-29 at 18:09 -0700, Ashutosh Dixit wrote:
> > From: Sudeep Dutt <sudeep.dutt@...el.com>
> > 
> > iova is a library which can be built without IOMMU_SUPPORT
> > 
> > Signed-off-by: Sudeep Dutt <sudeep.dutt@...el.com>
> 
> The first three of these patches are in 4.3-rc4 already. Apologies for
> the delay in pushing them out.
> 
> This one looks sane enough too, but perhaps in that case we should move
> the code *out* of drivers/iommu/ and into lib/iova/ ?
> 

Yes, moving the code into lib/iova is the correct long term solution. I
have sent Greg a patch which reverts this commit since it is no longer
required and will create a merge conflict for him unnecessarily as well
with 4.3-rc4.

Thanks,
Sudeep Dutt

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