int lnet_ping_target_init(void);
 void lnet_ping_target_fini(void);
-int lnet_ping(lnet_process_id_t id, int timeout_ms,
-             lnet_process_id_t *ids, int n_ids);
 
 int lnet_parse_ip2nets(char **networksp, char *ip2nets);
 int lnet_parse_routes(char *route_str, int *im_a_router);
 
 module_param(rnet_htable_size, int, 0444);
 MODULE_PARM_DESC(rnet_htable_size, "size of remote network hash table");
 
+static int lnet_ping(lnet_process_id_t id, int timeout_ms,
+                    lnet_process_id_t *ids, int n_ids);
+
 static char *
 lnet_get_routes(void)
 {
        cfs_restore_sigs(blocked);
 }
 
-int
-lnet_ping(lnet_process_id_t id, int timeout_ms, lnet_process_id_t *ids, int n_ids)
+static int lnet_ping(lnet_process_id_t id, int timeout_ms,
+                    lnet_process_id_t *ids, int n_ids)
 {
        lnet_handle_eq_t eqh;
        lnet_handle_md_t mdh;