From: Christoph Hellwig <hch@xxxxxx> Date: Wed, 26 Nov 2014 20:13:09 +0100 > On Wed, Nov 26, 2014 at 06:32:48PM +0100, Ondrej Zary wrote: >> wd819x should probably depend on VIRT_TO_BUS? But that means it will not work >> on sparc. Is there a way to make it work? I have a sparc machine but haven't >> tested it. > > The explanation from Arnd in the other thread makes more sense - > dma_cache_sync only is for non-coherent allocations so we should be > able to remove it entirely. Can you prepare and test a patch to just remove > it for me? Since dma_alloc_noncoherent is simply dma_alloc_coherent on sparc, I can simply implement dma_cache_sync() as a nop. I'll do that right now. I also agree that if wd719x is not using dma_alloc_noncoherent(), it should not be calling dma_cache_sync(). -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
