On Wed, 2017-01-25 at 12:03 +0000, Robin Murphy wrote: > hen bypassing SWIOTLB on small-memory systems, we need to avoid > calling > into swiotlb_dma_mapping_error() in exactly the same way as we avoid > swiotlb_dma_supported(), because the former also relies on SWIOTLB > state > being initialised. > I didn't submit the initial ARM64 port of the RPI 3, so I don't know much about this. But from a third personal point of view, this seems to side step the main issue here. >From an ARM64 subsystem point of view, what exactly is the correct/recommended method for ensuring the mm subsystem is initialized correctly? -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html