On 04/05/18 08:27 AM, Christian König wrote: > Are you sure that this is more convenient? At least on first glance it > feels overly complicated. > > I mean what's the difference between the two approaches? > > sum = pci_p2pdma_distance(target, [A, B, C, target]); > > and > > sum = pci_p2pdma_distance(target, A); > sum += pci_p2pdma_distance(target, B); > sum += pci_p2pdma_distance(target, C);
Well, it's more for consistency with the pci_p2pdma_find() which has to take a list of devices to find a resource which matches all of them. (You can't use multiple calls in that case because all the devices in the list might not have the same set of compatible providers.) That way we can use the same list to check the distance (when the user specifies a device) as we do to find a compatible device (when the user wants to automatically find one. Logan
