On Wed, May 11, 2016 at 10:15:20PM +0200, Arnd Bergmann wrote: > 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@xxxxxxxx> > > --- > > 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. That's probably the reason why patchwork didn't include the commit message in the downloaded mbox. I've pieced it together manually and applied this to topic/drm-misc. Thanks, Thierry
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