Re: [Intel-gfx] [PATCH] drm/i915/selftests: fix check for intel IOMMU

[Daniel Vetter]

On Thu, Oct 05, 2017 at 01:17:11PM +0100, Chris Wilson wrote:
> Quoting Arnd Bergmann (2017-10-05 13:07:22)
> > An earlier bugfix tried to work around this build failure:
> > 
> > drivers/gpu/drm/i915/selftests/mock_gem_device.c: In function 'mock_gem_device':
> > drivers/gpu/drm/i915/selftests/mock_gem_device.c:151:20: error: 'struct dev_archdata' has no member named 'iommu'
> > 
> > Checking for CONFIG_IOMMU_API is not sufficient as a compile-time
> > test since that may be enabled in configurations that have neither
> > INTEL_IOMMU not AMD_IOMMU enabled. This changes the check to
> > INTEL_IOMMU instead, as this is the only case we actually care about.
> > 
> > Fixes: f46f156ea770 ("drm/i915/selftests: Only touch archdata.iommu when it exists")
> > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> 
> I'll take your wisdom. I was lost trying to nail down exactly what
> config options we needed to check and settled for something that
> appeared good enough (for the small selection of configs I tested).
> 
> Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>

Pushed, thanks.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch