-bool ovs_numa_try_pin_core_specific(int core_id);
-int ovs_numa_get_unpinned_core_any(void);
-int ovs_numa_get_unpinned_core_on_numa(int numa_id);
-void ovs_numa_unpin_core(int core_id);
+bool ovs_numa_try_pin_core_specific(unsigned core_id);
+unsigned ovs_numa_get_unpinned_core_any(void);
+unsigned ovs_numa_get_unpinned_core_on_numa(int numa_id);
+void ovs_numa_unpin_core(unsigned core_id);