#ifdef KERNEL_PRIVATE
void in6_nigroup_attach(const char *, int);
void in6_nigroup_detach(const char *, int);
-void in6_ifattach(struct ifnet *, struct ifnet *, struct in6_aliasreq *);
+int in6_ifattach(struct ifnet *, struct ifnet *, struct in6_aliasreq *);
void in6_ifdetach(struct ifnet *);
void in6_get_tmpifid(struct ifnet *, u_int8_t *, const u_int8_t *, int);
void in6_tmpaddrtimer(void *);
int in6_nigroup(struct ifnet *, const char *, int, struct in6_addr *);
-#endif KERNEL_PRIVATE
+#endif /* KERNEL_PRIVATE */
-#endif _NETINET6_IN6_IFATTACH_H_
+#endif /* _NETINET6_IN6_IFATTACH_H_ */