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SubjectRe: [PATCH char-misc-next v2 04/22] iommu: Allow iova to be used without requiring IOMMU_SUPPORT
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On Tue, 2015-10-06 at 06:20 +0100, gregkh@linuxfoundation.org wrote:
> On Tue, Oct 06, 2015 at 06:12:40AM +0100, gregkh@linuxfoundation.org wrote:
> > On Mon, Oct 05, 2015 at 10:38:43AM -0700, Sudeep Dutt wrote:
> > > 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@intel.com>
> > > > >
> > > > > iova is a library which can be built without IOMMU_SUPPORT
> > > > >
> > > > > Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.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.
> >
> > I can handle merge issues, that's trivial. Reverting the patch
> > shoulnd't really be needed, right? Let me see what happens when I merge
> > to see if your patch is necessary...
>
> Ok, I don't think it is needed, the merge was pretty trivial.
>
> Can you test out my char-misc-testing branch right now to see if it's
> all ok with the merge? If so, I'll move it all over to the "real" place
> for it to start showing up in linux-next, i.e. my char-misc-next branch.
>

Hi Greg,

I think it is best to revert this patch as it is incorrect. The iommu
folder gets compiled only if IOMMU_SUPPORT is enabled so IOMMU_IOVA
should indeed be included only when IOMMU_SUPPORT is enabled.

Sincere apologies for the mess here but I believe it will all get fixed
up if you accept the revert of 353649e5da I sent across earlier today.

Thanks,
Sudeep Dutt



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