ppp_unit_number
if (put_user(ppp_unit_number(&ap->chan), p))
EXPORT_SYMBOL(ppp_unit_number);
if (put_user(ppp_unit_number(&ap->chan), p))
ret = ppp_unit_number(network->ppp_channel);
extern int ppp_unit_number(struct ppp_channel *);
return put_user(ppp_unit_number(&atmvcc_to_pvcc(atmvcc)->