On Sat, Aug 24, 2024 at 11:58 AM Christoph Hellwig <hch@xxxxxx> wrote: > > Hi all, > > we've had a long standing problems where drivers try to hook into the > DMA_OPS mechanisms to override them for something that is not DMA, or > to introduce additional dispatching. > > Now that we are not using DMA_OPS support for dma-iommu and can build > kernels without DMA_OPS support on many common setups this becomes even > more problematic. > > This series renames the option to ARCH_DMA_OPS and adds very explicit > comment to not use it in drivers. The ipu6 and vdpa_sim/user drivers > that abuse the mechanism are made to depend on the option instead of > selecting it with a big comment, but I expect this to be fixed rather > sooner than later (I know the ipu6 maintainers are on it based on a > previous discussion). > I will try to fix the simulator considering virtio has already had mapping ops now. Thanks
