MASTER_PF
if (sc->flags & MASTER_PF) {
MPASS((sc->flags & MASTER_PF) == 0);
sc->flags &= ~(FW_OK | MASTER_PF);
if (sc->flags & MASTER_PF) {
sc->flags |= MASTER_PF;
MPASS(sc->flags & MASTER_PF);
KASSERT(sc->flags & MASTER_PF,