IWM_FLAG_HW_ERR
sc->sc_flags &= ~IWM_FLAG_HW_ERR;
sc->sc_flags |= IWM_FLAG_HW_ERR;
sc->sc_flags |= IWM_FLAG_HW_ERR;
sc->sc_flags |= IWM_FLAG_HW_ERR;
int fatal = (sc->sc_flags & (IWM_FLAG_HW_ERR | IWM_FLAG_RFKILL));
sc->sc_flags &= ~IWM_FLAG_HW_ERR;