[NETFILTER]: nf_conntrack: kill destroy() in struct nf_conntrack for diet

The destructor per conntrack is unnecessary, then this replaces it with
system wide destructor.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 3 insertions, 2 deletions

diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index 4777f1b619ce..10b5c6275706 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -393,6 +393,7 @@ nf_nat_decode_session(struct sk_buff *skb, struct flowi *fl, int family) {}
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 extern void (*ip_ct_attach)(struct sk_buff *, struct sk_buff *);
 extern void nf_ct_attach(struct sk_buff *, struct sk_buff *);
+extern void (*nf_ct_destroy)(struct nf_conntrack *);
 #else
 static inline void nf_ct_attach(struct sk_buff *new, struct sk_buff *skb) {}
 #endif
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 0bedf5384850..37247901ebd2 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -90,7 +90,6 @@ struct net_device;
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 struct nf_conntrack {
         atomic_t use;
-        void (*destroy)(struct nf_conntrack *);
 };
 #endif
 
@@ -1556,10 +1555,11 @@ static inline unsigned int skb_checksum_complete(struct sk_buff *skb)
 }
 
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+extern void nf_conntrack_destroy(struct nf_conntrack *nfct);
 static inline void nf_conntrack_put(struct nf_conntrack *nfct)
 {
         if (nfct && atomic_dec_and_test(&nfct->use))
-                nfct->destroy(nfct);
+                nf_conntrack_destroy(nfct);
 }
 static inline void nf_conntrack_get(struct nf_conntrack *nfct)
 {