RTWN_FLAG_EXT_HDR
if ((sc->sc_flags & RTWN_FLAG_EXT_HDR) &&
sc->sc_flags = RTWN_FLAG_EXT_HDR;
sc->sc_flags = RTWN_FLAG_EXT_HDR;
sc->sc_flags = RTWN_FLAG_EXT_HDR;
sc->sc_flags = RTWN_FLAG_EXT_HDR;
sc->sc_flags = RTWN_FLAG_EXT_HDR;