466  * Find the distance through the nearest common upstream bridge between
485  * The distance is 4 because we traverse from Device A through the downstream
560  * pci_p2pdma_distance_many - Determine the cumulative distance between
582 	int distance;  in pci_p2pdma_distance_many()  local
608 					pci_client, &distance);  in pci_p2pdma_distance_many()
611 						       &distance, NULL, NULL);  in pci_p2pdma_distance_many()
621 		total_dist += distance;  in pci_p2pdma_distance_many()
643  *	the specified list of clients and shortest distance (as determined
652  * distance away, one will be chosen at random.
661 	int distance;  in pci_p2pmem_find_many()  local
676 		distance = pci_p2pdma_distance_many(pdev, clients,  in pci_p2pmem_find_many()
678 		if (distance < 0 || distance > closest_distance)  in pci_p2pmem_find_many()
681 		if (distance == closest_distance && dev_cnt >= max_devs)  in pci_p2pmem_find_many()
684 		if (distance < closest_distance) {  in pci_p2pmem_find_many()
689 			closest_distance = distance;  in pci_p2pmem_find_many()