BT3C_XMIT
sc->sc_flags &= ~BT3C_XMIT;
KASSERT((sc->sc_flags & BT3C_XMIT) == 0);
sc->sc_flags |= BT3C_XMIT;
if ((sc->sc_flags & BT3C_XMIT) == 0)
if ((sc->sc_flags & BT3C_XMIT) == 0)
if ((sc->sc_flags & BT3C_XMIT) == 0)
sc->sc_flags &= ~BT3C_XMIT;