FWDEVINVAL
if (fwdev->dst == dst && fwdev->status != FWDEVINVAL)
if(fwdev->status == FWDEVINVAL) return NULL;
if (fwdev->status != FWDEVINVAL) {
fwdev->status = FWDEVINVAL;
dfwdev->status = FWDEVINVAL;
dfwdev->status = FWDEVINVAL;
dfwdev->status = FWDEVINVAL;
dfwdev->status = FWDEVINVAL;
fwdev->status = FWDEVINVAL;
} else if (fwdev->status == FWDEVINVAL) {
(fwdev->status == FWDEVINVAL) ? 0 : 1;