ppp_ccp_closed    163 net/if_ppp.c   static void	ppp_ccp_closed(struct ppp_softc *);
ppp_ccp_closed    377 net/if_ppp.c       ppp_ccp_closed(sc);
ppp_ccp_closed    447 net/if_ppp.c   	    ppp_ccp_closed(sc);