extern int ll_remember_index(const struct sockaddr_nl *who,
struct nlmsghdr *n, void *arg);
extern int ll_init_map(struct rtnl_handle *rth);
-extern int ll_name_to_index(const char *name);
-extern const char *ll_index_to_name(int idx);
-extern const char *ll_idx_n2a(int idx, char *buf);
-extern int ll_index_to_type(int idx);
-extern unsigned ll_index_to_flags(int idx);
+extern unsigned ll_name_to_index(const char *name);
+extern const char *ll_index_to_name(unsigned idx);
+extern const char *ll_idx_n2a(unsigned idx, char *buf);
+extern int ll_index_to_type(unsigned idx);
+extern unsigned ll_index_to_flags(unsigned idx);
#endif /* __LL_MAP_H__ */