Messages in this thread | | | Date | Wed, 19 Sep 2018 17:01:48 +0200 | From | Christoph Hellwig <> | Subject | Re: dma_get_required_mask tidyups |
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Any comments? I have a a few things piled up that base on this, so some forward progress would be great.
On Mon, Sep 10, 2018 at 08:13:29AM +0200, Christoph Hellwig wrote: > Hi all, > > the dma_get_required_mask dma API implementation has always been a little > odd, in that we by default don't wire it up struct dma_map_ops, but > instead hard code a default implementation. powerpc and ia64 override > this default and either call a method or otherwise duplicate the default. > > This series always enabled the method and just falls back to the previous > default implementation when it is not available, as well as fixing up > a few bits in the default implementations. This already allows removing > the ia64 override of the implementation, and will also allow to remove > the powerpc one together with a few additional cleanups in the powerpc > code, but those will be sent separately with other powerpc DMA API > patches. Last but not least the method will allow us to return a more > sensible value for typical iommu dma_ops eventually, but that is left > to another series as well. > _______________________________________________ > iommu mailing list > iommu@lists.linux-foundation.org > https://lists.linuxfoundation.org/mailman/listinfo/iommu ---end quoted text---
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