batman-adv: add bat_neigh_free API

This API has to be used to let any routing protocol free
neighbor specific allocated resources

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>

diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index e3900e4..aa092c3 100644 (file)
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -197,13 +197,19 @@ static void batadv_neigh_node_free_rcu(struct rcu_head *rcu)
        struct hlist_node *node_tmp;
        struct batadv_neigh_node *neigh_node;
        struct batadv_neigh_ifinfo *neigh_ifinfo;
+       struct batadv_algo_ops *bao;
 
        neigh_node = container_of(rcu, struct batadv_neigh_node, rcu);
+       bao = neigh_node->orig_node->bat_priv->bat_algo_ops;
 
        hlist_for_each_entry_safe(neigh_ifinfo, node_tmp,
                                  &neigh_node->ifinfo_list, list) {
                batadv_neigh_ifinfo_free_ref_now(neigh_ifinfo);
        }
+
+       if (bao->bat_neigh_free)
+               bao->bat_neigh_free(neigh_node);
+
        batadv_hardif_free_ref_now(neigh_node->if_incoming);
 
        kfree(neigh_node);

diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index c1000c0..336f94b 100644 (file)
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -1121,6 +1121,8 @@ struct batadv_forw_packet {
  * @bat_neigh_is_equiv_or_better: check if neigh1 is equally good or better
  *  than neigh2 for their respective outgoing interface from the metric
  *  prospective
+ * @bat_neigh_free: free the resources allocated by the routing algorithm for a
+ *  neigh_node object
  * @bat_orig_print: print the originator table (optional)
  * @bat_orig_free: free the resources allocated by the routing algorithm for an
  *  orig_node object
@@ -1138,6 +1140,7 @@ struct batadv_algo_ops {
        void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface);
        void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface);
        void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet);
+       /* neigh_node handling API */
        int (*bat_neigh_cmp)(struct batadv_neigh_node *neigh1,
                             struct batadv_hard_iface *if_outgoing1,
                             struct batadv_neigh_node *neigh2,
@@ -1147,6 +1150,7 @@ struct batadv_algo_ops {
                 struct batadv_hard_iface *if_outgoing1,
                 struct batadv_neigh_node *neigh2,
                 struct batadv_hard_iface *if_outgoing2);
+       void (*bat_neigh_free)(struct batadv_neigh_node *neigh);
        /* orig_node handling API */
        void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq,
                               struct batadv_hard_iface *hard_iface);