-int print_linkinfo(const struct sockaddr_nl *who,
- struct nlmsghdr *n, void *arg);
-int print_linkinfo_brief(const struct sockaddr_nl *who,
- struct nlmsghdr *n, void *arg);
-int print_addrinfo(const struct sockaddr_nl *who,
- struct nlmsghdr *n, void *arg);
-int print_addrlabel(const struct sockaddr_nl *who,
- struct nlmsghdr *n, void *arg);
-int print_neigh(const struct sockaddr_nl *who,
- struct nlmsghdr *n, void *arg);
+int print_linkinfo(struct nlmsghdr *n, void *arg);
+int print_addrinfo(struct nlmsghdr *n, void *arg);
+int print_addrlabel(struct nlmsghdr *n, void *arg);
+int print_neigh(struct nlmsghdr *n, void *arg);