+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Free a hash key in the hash table given the position
+ * of the key. This operation is not multi-thread safe and should
+ * only be called from one thread by default. Thread safety
+ * can be enabled by setting flag during table creation.
+ * If RTE_HASH_EXTRA_FLAGS_NO_FREE_ON_DEL or
+ * RTE_HASH_EXTRA_FLAGS_RW_CONCURRENCY_LF is enabled,
+ * the key index returned by rte_hash_del_key_xxx APIs must be freed
+ * using this API. This API should be called after all the readers
+ * have stopped referencing the entry corresponding to this key.
+ * RCU mechanisms could be used to determine such a state.
+ * This API does not validate if the key is already freed.
+ *
+ * @param h
+ * Hash table to free the key from.
+ * @param position
+ * Position returned when the key was deleted.
+ * @return
+ * - 0 if freed successfully
+ * - -EINVAL if the parameters are invalid.
+ */
+__rte_experimental
+int
+rte_hash_free_key_with_position(const struct rte_hash *h,
+ const int32_t position);
+