const struct flow_wildcards *);
uint32_t flow_hash_symmetric_l4(const struct flow *flow, uint32_t basis);
-void flow_mask_hash_fields(struct flow_wildcards *, enum nx_hash_fields);
+void flow_mask_hash_fields(const struct flow *, struct flow_wildcards *,
+ enum nx_hash_fields);
uint32_t flow_hash_fields(const struct flow *, enum nx_hash_fields,
uint16_t basis);
const char *flow_hash_fields_to_str(enum nx_hash_fields);