PCIB_SUBTRACTIVE
sc->flags |= PCIB_SUBTRACTIVE;
sc->flags |= PCIB_SUBTRACTIVE;
sc->flags & PCIB_SUBTRACTIVE) {
if (sc->flags & PCIB_SUBTRACTIVE)
if (r != NULL || (sc->flags & PCIB_SUBTRACTIVE) != 0)
if (r != NULL || (sc->flags & PCIB_SUBTRACTIVE) != 0)
if (sc->flags & PCIB_SUBTRACTIVE && r == NULL)