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SubjectRe: [PATCH] drm: mediatek: remove IOMMU_DMA select
Date
On Wednesday 11 May 2016 22:11:07 Arnd Bergmann wrote:
> We get a harmless build warning when trying to use the mediatek
> DRM driver with IOMMU support disabled:
>
> warning: (DRM_MEDIATEK) selects IOMMU_DMA which has unmet direct dependencies (IOMMU_SUPPORT)
>
> However, the IOMMU_DMA symbol is not meant to be used by drivers
> at all, and this driver doesn't seem to have a strict dependency
> on it other than using the mediatek IOMMU driver that does.
>
> Since we also want to be able to do compile tests with the
> driver on other platforms, the IOMMU_DMA symbol should not
> be selected here.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> If someone has a better explanation about why the 'select' is here,
> let me know, it certainly seems out of place.

Sorry, I didn't mean to send this as a reply to "More build fixes for
omapdrm in current -next", I copied the wrong command line.

I'll resend it if necessary.

Arnd

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