dma_unmap_sg(dev, ireq->sg_table, ireq->sg_nents, ireq->sg_dma_direction);
if (rq_data_dir(ireq->req) == READ) direction = PCI_DMA_FROMDEVICE; else direction = PCI_DMA_TODEVICE;  dma_unmap_sg(ireq->dev, ireq->sg_table, ireq->sg_nents, direction);
static inline void i2o_block_sglist_free(struct i2o_block_request *ireq){	struct device *dev = &ireq->i2o_blk_dev->i2o_dev->iop->pdev->dev;	dma_unmap_sg(dev, ireq->sg_table, ireq->sg_nents,		     ireq->sg_dma_direction);};