swiotlb_dma_supported will always return true for the a mask
large enough to be covered by wired up physical address, so this
function is pointless.
Signed-off-by: Christoph Hellwig
---
arch/mips/loongson64/common/dma-swiotlb.c | 9 +
1 file changed, 1 insertion(+), 8 deletions(-)
diff
swiotlb_dma_supported will always return true for a mask large enough to
cover the DMA addresses for all physical memory, which is the right
thing to do for swiotlb based dma ops. This function returned false
if the mask was bigger than a firmware set dma_mask_bits that apparently
can be either 32
Hi Christoph,
On Fri, May 25, 2018 at 11:20:52AM +0200, Christoph Hellwig wrote:
> swiotlb_dma_supported will always return true for the a mask
> large enough to be covered by wired up physical address, so this
> function is pointless.
Shouldn't this be "large enough to cover all wired up physica
