lwtunnel: Add destroy state operation

[karo-tx-linux.git] / include / net / lwtunnel.h

diff --git a/include/net/lwtunnel.h b/include/net/lwtunnel.h
index ea3f80f58fd6d57f01d4cd9d7cbe659e7a123150..67d235f43202abf002682e09438dc8c51facc3cd 100644 (file)
--- a/include/net/lwtunnel.h
+++ b/include/net/lwtunnel.h
@@ -29,6 +29,7 @@ struct lwtunnel_state {
        int             (*orig_input)(struct sk_buff *);
        int             len;
        __u16           headroom;
+       struct          rcu_head rcu;
        __u8            data[0];
 };
 
@@ -36,6 +37,7 @@ struct lwtunnel_encap_ops {
        int (*build_state)(struct net_device *dev, struct nlattr *encap,
                           unsigned int family, const void *cfg,
                           struct lwtunnel_state **ts);
+       void (*destroy_state)(struct lwtunnel_state *lws);
        int (*output)(struct net *net, struct sock *sk, struct sk_buff *skb);
        int (*input)(struct sk_buff *skb);
        int (*fill_encap)(struct sk_buff *skb,
@@ -46,10 +48,7 @@ struct lwtunnel_encap_ops {
 };
 
 #ifdef CONFIG_LWTUNNEL
-static inline void lwtstate_free(struct lwtunnel_state *lws)
-{
-       kfree(lws);
-}
+void lwtstate_free(struct lwtunnel_state *lws);
 
 static inline struct lwtunnel_state *
 lwtstate_get(struct lwtunnel_state *lws)