sync_single       636 lib/swiotlb.c  		sync_single(hwdev, dma_addr, size, dir, target);
sync_single       667 lib/swiotlb.c  		sync_single(hwdev, dma_addr, size, dir, target);
sync_single       796 lib/swiotlb.c  			sync_single(hwdev, bus_to_virt(sg->dma_address),