Hi all,, this series ensures that the common dma-direct code handles the somewhat special allocation types requested by the DMA_ATTR_NON_CONSISTENT and DMA_ATTR_NO_KERNEL_MAPPING flags directly. To do so it also removes three partial and thus broken implementations of DMA_ATTR_NON_CONSISTENT. Last but not least it switches arc to use the generic dma remapping code now that arc doesn't implement any special behavior.
