1061 	struct dmaengine_unmap_data *unmap;  in ntb_async_rx()  local
1080 	unmap = dmaengine_get_unmap_data(device->dev, 2, GFP_NOWAIT);  in ntb_async_rx()
1081 	if (!unmap)  in ntb_async_rx()
1084 	unmap->len = len;  in ntb_async_rx()
1085 	unmap->addr[0] = dma_map_page(device->dev, virt_to_page(offset),  in ntb_async_rx()
1087 	if (dma_mapping_error(device->dev, unmap->addr[0]))  in ntb_async_rx()
1090 	unmap->to_cnt = 1;  in ntb_async_rx()
1092 	unmap->addr[1] = dma_map_page(device->dev, virt_to_page(buf),  in ntb_async_rx()
1094 	if (dma_mapping_error(device->dev, unmap->addr[1]))  in ntb_async_rx()
1097 	unmap->from_cnt = 1;  in ntb_async_rx()
1099 	txd = device->device_prep_dma_memcpy(chan, unmap->addr[1],  in ntb_async_rx()
1100 					     unmap->addr[0], len,  in ntb_async_rx()
1107 	dma_set_unmap(txd, unmap);  in ntb_async_rx()
1113 	dmaengine_unmap_put(unmap);  in ntb_async_rx()
1122 	dmaengine_unmap_put(unmap);  in ntb_async_rx()
1124 	dmaengine_unmap_put(unmap);  in ntb_async_rx()
1279 	struct dmaengine_unmap_data *unmap;  in ntb_async_tx()  local
1307 	unmap = dmaengine_get_unmap_data(device->dev, 1, GFP_NOWAIT);  in ntb_async_tx()
1308 	if (!unmap)  in ntb_async_tx()
1311 	unmap->len = len;  in ntb_async_tx()
1312 	unmap->addr[0] = dma_map_page(device->dev, virt_to_page(buf),  in ntb_async_tx()
1314 	if (dma_mapping_error(device->dev, unmap->addr[0]))  in ntb_async_tx()
1317 	unmap->to_cnt = 1;  in ntb_async_tx()
1319 	txd = device->device_prep_dma_memcpy(chan, dest, unmap->addr[0], len,  in ntb_async_tx()
1326 	dma_set_unmap(txd, unmap);  in ntb_async_tx()
1332 	dmaengine_unmap_put(unmap);  in ntb_async_tx()
1339 	dmaengine_unmap_put(unmap);  in ntb_async_tx()
1341 	dmaengine_unmap_put(unmap);  in ntb_async_tx()