efi_devpath_match
bool efi_devpath_match(EFI_DEVICE_PATH *, EFI_DEVICE_PATH *);
if (efi_devpath_match(pd->pd_devpath, parent))
if (efi_devpath_match(pd->pd_devpath, cd->pd_devpath)) {
if (efi_devpath_match(dev->pd_parent->pd_devpath, pd->pd_devpath)) {
if (efi_devpath_match(pd->pd_devpath, hd->pd_devpath)) {
if (!efi_devpath_match(dp, devpath))