netfilter: nf_conntrack: don't always initialize ct->proto

ct->proto is big(60 bytes) due to structure ip_ct_tcp, and we don't need
to initialize the whole for all the other protocols. This patch moves
proto to the end of structure nf_conn, and pushes the initialization down
to the individual protocols.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index caf17db87dbc..abfff1e8e0d0 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -116,14 +116,14 @@ struct nf_conn {
         u_int32_t secmark;
 #endif
 
-        /* Storage reserved for other modules: */
-        union nf_conntrack_proto proto;
-
         /* Extensions */
         struct nf_ct_ext *ext;
 #ifdef CONFIG_NET_NS
         struct net *ct_net;
 #endif
+
+        /* Storage reserved for other modules, must be the last member */
+        union nf_conntrack_proto proto;
 };
 
 static inline struct nf_conn *