+
+ /* If nonnull, flow translation populates this cache with references to all
+ * modules that are affected by translation. This 'xlate_cache' may be
+ * passed to xlate_push_stats() to perform the same function as
+ * xlate_actions() without the full cost of translation.
+ *
+ * This is normally null so the client has to set it manually after
+ * calling xlate_in_init(). */
+ struct xlate_cache *xcache;