2 files changed, 24 insertions, 13 deletions

diff --git a/include/net/sock.h b/include/net/sock.h
index 2c0da9239b95..950409dcec3d 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -104,15 +104,15 @@ struct net;
 
 /**
  *      struct sock_common - minimal network layer representation of sockets
+ *      @skc_node: main hash linkage for various protocol lookup tables
+ *      @skc_nulls_node: main hash linkage for UDP/UDP-Lite protocol
+ *      @skc_refcnt: reference count
+ *      @skc_hash: hash value used with various protocol lookup tables
  *      @skc_family: network address family
  *      @skc_state: Connection state
  *      @skc_reuse: %SO_REUSEADDR setting
  *      @skc_bound_dev_if: bound device index if != 0
- *      @skc_node: main hash linkage for various protocol lookup tables
- *      @skc_nulls_node: main hash linkage for UDP/UDP-Lite protocol
  *      @skc_bind_node: bind hash linkage for various protocol lookup tables
- *      @skc_refcnt: reference count
- *      @skc_hash: hash value used with various protocol lookup tables
  *      @skc_prot: protocol handlers inside a network family
  *      @skc_net: reference to the network namespace of this socket
  *
@@ -120,17 +120,21 @@ struct net;
  *      for struct sock and struct inet_timewait_sock.
  */
 struct sock_common {
-        unsigned short          skc_family;
-        volatile unsigned char  skc_state;
-        unsigned char           skc_reuse;
-        int                     skc_bound_dev_if;
+        /*
+         * first fields are not copied in sock_copy()
+         */
         union {
                 struct hlist_node       skc_node;
                 struct hlist_nulls_node skc_nulls_node;
         };
-        struct hlist_node       skc_bind_node;
         atomic_t                skc_refcnt;
+
         unsigned int            skc_hash;
+        unsigned short          skc_family;
+        volatile unsigned char  skc_state;
+        unsigned char           skc_reuse;
+        int                     skc_bound_dev_if;
+        struct hlist_node       skc_bind_node;
         struct proto            *skc_prot;
 #ifdef CONFIG_NET_NS
         struct net              *skc_net;
@@ -208,15 +212,17 @@ struct sock {
          * don't add nothing before this first member (__sk_common) --acme
          */
         struct sock_common      __sk_common;
+#define sk_node                 __sk_common.skc_node
+#define sk_nulls_node           __sk_common.skc_nulls_node
+#define sk_refcnt               __sk_common.skc_refcnt
+
+#define sk_copy_start           __sk_common.skc_hash
+#define sk_hash                 __sk_common.skc_hash
 #define sk_family               __sk_common.skc_family
 #define sk_state                __sk_common.skc_state
 #define sk_reuse                __sk_common.skc_reuse
 #define sk_bound_dev_if         __sk_common.skc_bound_dev_if
-#define sk_node                 __sk_common.skc_node
-#define sk_nulls_node           __sk_common.skc_nulls_node
 #define sk_bind_node            __sk_common.skc_bind_node
-#define sk_refcnt               __sk_common.skc_refcnt
-#define sk_hash                 __sk_common.skc_hash
 #define sk_prot                 __sk_common.skc_prot
 #define sk_net                  __sk_common.skc_net
         kmemcheck_bitfield_begin(flags);
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 19f4150f4d4d..88af84306471 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1425,6 +1425,11 @@ struct tcp_request_sock_ops {
 #ifdef CONFIG_TCP_MD5SIG
         struct tcp_md5sig_key   *(*md5_lookup) (struct sock *sk,
                                                 struct request_sock *req);
+        int                     (*calc_md5_hash) (char *location,
+                                                  struct tcp_md5sig_key *md5,
+                                                  struct sock *sk,
+                                                  struct request_sock *req,
+                                                  struct sk_buff *skb);
 #endif
 };