Re: [PATCH] drm/nouveau/platform: add IOMMU dependency

On Tue, May 19, 2015 at 02:53:26PM +0200, 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.

Signed-off-by: Arnd Bergmann arnd@arndb.de Fixes: 58fd9375c2c5 ("drm/nouveau/platform: probe IOMMU if present")

Acked-by: Thierry Reding treding@nvidia.com