northd: Make bfd_connections static in build_parsed_routes.

Make hamp bfd_connections pointer static in build_parsed_routes and
parsed_routes_add routines since it is used just as input.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Han Zhou <hzhou@ovn.org>

northd/northd.c

@@ -11113,7 +11113,7 @@ parsed_route_lookup(struct hmap *routes, size_t hash,
 static void
 parsed_routes_add(struct ovn_datapath *od, const struct hmap *lr_ports,
                   const struct nbrec_logical_router_static_route *route,
-                  struct hmap *bfd_connections,
+                  const struct hmap *bfd_connections,
                   struct hmap *routes, struct simap *route_tables,
                   struct hmap *bfd_active_connections)
 {
@@ -11226,7 +11226,7 @@ parsed_routes_add(struct ovn_datapath *od, const struct hmap *lr_ports,
 
 void
 build_parsed_routes(struct ovn_datapath *od, const struct hmap *lr_ports,
-                    struct hmap *bfd_connections, struct hmap *routes,
+                    const struct hmap *bfd_connections, struct hmap *routes,
                     struct simap *route_tables,
                     struct hmap *bfd_active_connections)
 {

northd/northd.h

@@ -738,7 +738,7 @@ void northd_indices_create(struct northd_data *data,
 void route_policies_init(struct route_policies_data *);
 void route_policies_destroy(struct route_policies_data *);
 void build_parsed_routes(struct ovn_datapath *, const struct hmap *,
-                         struct hmap *, struct hmap *, struct simap *,
+                         const struct hmap *, struct hmap *, struct simap *,
                          struct hmap *);
 uint32_t get_route_table_id(struct simap *, const char *);
 void static_routes_init(struct static_routes_data *);