[PATCH] drm/nouveau/platform: fix compilation if !CONFIG_IOMMU

Arnd Bergmann arnd at arndb.de
Wed May 20 05:01:25 PDT 2015

On Wednesday 20 May 2015 13:32:33 Thierry Reding wrote:
> Since these are all static functions, perhaps an "if (IS_ENABLED(...))"
> would work here? That way you'd get compile coverage of the code in all
> cases.

I had the same thought at first.
> But perhaps that doesn't work for IOMMU. I have a vague memory of
> running across something like this before and IOMMU has this quirk of
> defining struct iommu_ops as empty if IOMMU_API is deselected so you'll
> probably get compiler errors unless you actually preprocess the code
> out.



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