1323 	struct dmaengine_unmap_data *unmap;  in ntb_async_rx_submit()  local
1335 	unmap = dmaengine_get_unmap_data(device->dev, 2, GFP_NOWAIT);  in ntb_async_rx_submit()
1336 	if (!unmap)  in ntb_async_rx_submit()
1339 	unmap->len = len;  in ntb_async_rx_submit()
1340 	unmap->addr[0] = dma_map_page(device->dev, virt_to_page(offset),  in ntb_async_rx_submit()
1342 	if (dma_mapping_error(device->dev, unmap->addr[0]))  in ntb_async_rx_submit()
1345 	unmap->to_cnt = 1;  in ntb_async_rx_submit()
1347 	unmap->addr[1] = dma_map_page(device->dev, virt_to_page(buf),  in ntb_async_rx_submit()
1349 	if (dma_mapping_error(device->dev, unmap->addr[1]))  in ntb_async_rx_submit()
1352 	unmap->from_cnt = 1;  in ntb_async_rx_submit()
1354 	txd = device->device_prep_dma_memcpy(chan, unmap->addr[1],  in ntb_async_rx_submit()
1355 					     unmap->addr[0], len,  in ntb_async_rx_submit()
1362 	dma_set_unmap(txd, unmap);  in ntb_async_rx_submit()
1368 	dmaengine_unmap_put(unmap);  in ntb_async_rx_submit()
1377 	dmaengine_unmap_put(unmap);  in ntb_async_rx_submit()
1379 	dmaengine_unmap_put(unmap);  in ntb_async_rx_submit()
1600 	struct dmaengine_unmap_data *unmap;  in ntb_async_tx_submit()  local
1612 	unmap = dmaengine_get_unmap_data(device->dev, 1, GFP_NOWAIT);  in ntb_async_tx_submit()
1613 	if (!unmap)  in ntb_async_tx_submit()
1616 	unmap->len = len;  in ntb_async_tx_submit()
1617 	unmap->addr[0] = dma_map_page(device->dev, virt_to_page(buf),  in ntb_async_tx_submit()
1619 	if (dma_mapping_error(device->dev, unmap->addr[0]))  in ntb_async_tx_submit()
1622 	unmap->to_cnt = 1;  in ntb_async_tx_submit()
1624 	txd = device->device_prep_dma_memcpy(chan, dest, unmap->addr[0], len,  in ntb_async_tx_submit()
1631 	dma_set_unmap(txd, unmap);  in ntb_async_tx_submit()
1637 	dmaengine_unmap_put(unmap);  in ntb_async_tx_submit()
1643 	dmaengine_unmap_put(unmap);  in ntb_async_tx_submit()
1645 	dmaengine_unmap_put(unmap);  in ntb_async_tx_submit()