1 files changed, 11 insertions, 10 deletions

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index d849dd53b788..3aae0f217d61 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -75,11 +75,11 @@ static void	tcp_v6_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
 
 static int      tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb);
 
-static struct inet_connection_sock_af_ops ipv6_mapped;
-static struct inet_connection_sock_af_ops ipv6_specific;
+static const struct inet_connection_sock_af_ops ipv6_mapped;
+static const struct inet_connection_sock_af_ops ipv6_specific;
 #ifdef CONFIG_TCP_MD5SIG
-static struct tcp_sock_af_ops tcp_sock_ipv6_specific;
-static struct tcp_sock_af_ops tcp_sock_ipv6_mapped_specific;
+static const struct tcp_sock_af_ops tcp_sock_ipv6_specific;
+static const struct tcp_sock_af_ops tcp_sock_ipv6_mapped_specific;
 #else
 static struct tcp_md5sig_key *tcp_v6_md5_do_lookup(struct sock *sk,
                                                    struct in6_addr *addr)
@@ -591,7 +591,7 @@ static int tcp_v6_md5_do_add(struct sock *sk, struct in6_addr *peer,
                         }
                         sk->sk_route_caps &= ~NETIF_F_GSO_MASK;
                 }
-                if (tcp_alloc_md5sig_pool() == NULL) {
+                if (tcp_alloc_md5sig_pool(sk) == NULL) {
                         kfree(newkey);
                         return -ENOMEM;
                 }
@@ -894,7 +894,7 @@ struct request_sock_ops tcp6_request_sock_ops __read_mostly = {
 };
 
 #ifdef CONFIG_TCP_MD5SIG
-static struct tcp_request_sock_ops tcp_request_sock_ipv6_ops = {
+static const struct tcp_request_sock_ops tcp_request_sock_ipv6_ops = {
         .md5_lookup     =       tcp_v6_reqsk_md5_lookup,
         .calc_md5_hash  =       tcp_v6_md5_hash_skb,
 };
@@ -1003,6 +1003,7 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
         skb_reserve(buff, MAX_HEADER + sizeof(struct ipv6hdr) + tot_len);
 
         t1 = (struct tcphdr *) skb_push(buff, tot_len);
+        skb_reset_transport_header(skb);
 
         /* Swap the send and the receive. */
         memset(t1, 0, sizeof(*t1));
@@ -1760,7 +1761,7 @@ static int tcp_v6_remember_stamp(struct sock *sk)
         return 0;
 }
 
-static struct inet_connection_sock_af_ops ipv6_specific = {
+static const struct inet_connection_sock_af_ops ipv6_specific = {
         .queue_xmit        = inet6_csk_xmit,
         .send_check        = tcp_v6_send_check,
         .rebuild_header    = inet6_sk_rebuild_header,
@@ -1780,7 +1781,7 @@ static struct inet_connection_sock_af_ops ipv6_specific = {
 };
 
 #ifdef CONFIG_TCP_MD5SIG
-static struct tcp_sock_af_ops tcp_sock_ipv6_specific = {
+static const struct tcp_sock_af_ops tcp_sock_ipv6_specific = {
         .md5_lookup     =       tcp_v6_md5_lookup,
         .calc_md5_hash  =       tcp_v6_md5_hash_skb,
         .md5_add        =       tcp_v6_md5_add_func,
@@ -1792,7 +1793,7 @@ static struct tcp_sock_af_ops tcp_sock_ipv6_specific = {
  *      TCP over IPv4 via INET6 API
  */
 
-static struct inet_connection_sock_af_ops ipv6_mapped = {
+static const struct inet_connection_sock_af_ops ipv6_mapped = {
         .queue_xmit        = ip_queue_xmit,
         .send_check        = tcp_v4_send_check,
         .rebuild_header    = inet_sk_rebuild_header,
@@ -1812,7 +1813,7 @@ static struct inet_connection_sock_af_ops ipv6_mapped = {
 };
 
 #ifdef CONFIG_TCP_MD5SIG
-static struct tcp_sock_af_ops tcp_sock_ipv6_mapped_specific = {
+static const struct tcp_sock_af_ops tcp_sock_ipv6_mapped_specific = {
         .md5_lookup     =       tcp_v4_md5_lookup,
         .calc_md5_hash  =       tcp_v4_md5_hash_skb,
         .md5_add        =       tcp_v6_md5_add_func,