[PATCH] dma-mapping: clear mark DMA ops as an architecture feature

DMA ops are a helper for architectures and not for drivers to override the DMA implementation. Unfortunately driver authors keep ignoring this. Make this more clear by renaming the symbol to ARCH_DMA_OPS, have the three drivers overriding it depend on that. They should probably also be marked br

clearly mark DMA_OPS support as an architecture feasture

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 co