WITHIN
if (WITHIN(sc->sc_rbufaddr[i], LEBLEN, RIEBL_RES_START) ||
WITHIN(sc->sc_rbufaddr[i], LEBLEN, RIEBL_RES_END)) {
if (WITHIN(sc->sc_tbufaddr[i], LEBLEN, RIEBL_RES_START) ||
WITHIN(sc->sc_tbufaddr[i], LEBLEN, RIEBL_RES_END)) {