RFCOMM_CFC_DISABLED
if ((pn->flow_ctrl == 0xf0 && s->cfc != RFCOMM_CFC_DISABLED) ||
d->cfc = RFCOMM_CFC_DISABLED;
d->cfc = RFCOMM_CFC_DISABLED;
s->cfc = disable_cfc ? RFCOMM_CFC_DISABLED : RFCOMM_CFC_UNKNOWN;