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Groups > linux.kernel > #1399489
| From | Arnd Bergmann <arnd@arndb.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] drm: mediatek: remove IOMMU_DMA select |
| Date | 2016-05-11 22:20 +0200 |
| Message-ID | <rxILU-7dz-7@gated-at.bofh.it> (permalink) |
| References | <rxERX-3dg-3@gated-at.bofh.it> <rxILT-7dz-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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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More build fixes for omapdrm in current -next Arnd Bergmann <arnd@arndb.de> - 2016-05-11 18:10 +0200
[PATCH 1/3] drm/omap: include linux/seq_file.h where needed Arnd Bergmann <arnd@arndb.de> - 2016-05-11 18:10 +0200
[PATCH 2/3] drm/omap: include linux/of.h where needed Arnd Bergmann <arnd@arndb.de> - 2016-05-11 18:10 +0200
[PATCH] drm: mediatek: remove IOMMU_DMA select Arnd Bergmann <arnd@arndb.de> - 2016-05-11 22:20 +0200
Re: [PATCH] drm: mediatek: remove IOMMU_DMA select Arnd Bergmann <arnd@arndb.de> - 2016-05-11 22:20 +0200
Re: [PATCH] drm: mediatek: remove IOMMU_DMA select Robin Murphy <robin.murphy@arm.com> - 2016-05-12 11:30 +0200
Re: [PATCH] drm: mediatek: remove IOMMU_DMA select Philipp Zabel <p.zabel@pengutronix.de> - 2016-05-12 12:50 +0200
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