sg->dma_length, dir);
sg->dma_length, dir, target);
swiotlb_sync_sg(struct device *hwdev, struct scatterlist *sg,		int nelems, int dir){	int i;	if (dir == DMA_NONE)		BUG();	for (i = 0; i < nelems; i++, sg++)		if (sg->dma_address != SG_ENT_PHYS_ADDRESS(sg))			sync_single(hwdev, (void *) sg->dma_address,				    sg->dma_length, dir);}