On Fri, Jun 09, 2017 at 12:22:48AM +1000, Julian Calaby wrote: > I'm guessing there's a few places that have DMA ops but DMA isn't > actually supported. Why not have a common method for this, maybe > "dma_not_supported"? It's not common at all. Except for sbus all dma API user first call set_dma_mask which ends up in the dma_supported call. sbus is the weird outlier here.
