So while I really, really like this cleanup it turns out it isn't actually safe for arm :( arm remaps the CMA allocation in place instead of using a new mapping, which can be done because they don't share PMDs with the kernel.
So we'll probably need a __dma_alloc_from_contiguous version with an additional bool fallback argument - everyone but arms uses dma_alloc_from_contiguous as in your patch, just arm will get the non-fallback one. Sorry for not sorting this our earlier. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
