On 05/19/2015 09:53 PM, Arnd Bergmann wrote:
The recently added iommu code in the nouveau driver fails to build when the IOMMU support is disabled: drivers/gpu/drm/nouveau/nouveau_platform.c: In function 'nouveau_platform_probe_iommu': drivers/gpu/drm/nouveau/nouveau_platform.c:113:41: error: 'const struct iommu_ops' has no mem To avoid the build error, this now adds an explicit dependency on the IOMMU implementation.
I have a local patch to nouveau_platform.c that only calls the IOMMU functions if CONFIG_IOMMU is set. Wouldn't this be more suitable as IOMMU support is only used by Tegra and thus not beneficial for desktop GPUs?
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