diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index bfb240c..d65381c 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -51,7 +51,7 @@
 /*
  *	address family specific functions
  */
-extern struct inet_connection_sock_af_ops ipv4_specific;
+extern const struct inet_connection_sock_af_ops ipv4_specific;
 
 extern void inet6_destroy_sock(struct sock *sk);
 
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index a0a36c9..d01c00d 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -880,7 +880,7 @@
 	goto discard_it;
 }
 
-static struct inet_connection_sock_af_ops dccp_ipv4_af_ops = {
+static const struct inet_connection_sock_af_ops dccp_ipv4_af_ops = {
 	.queue_xmit	   = ip_queue_xmit,
 	.send_check	   = dccp_v4_send_check,
 	.rebuild_header	   = inet_sk_rebuild_header,
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 3e70faa..64f011c 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -35,8 +35,8 @@
 
 /* The per-net dccp.v6_ctl_sk is used for sending RSTs and ACKs */
 
-static struct inet_connection_sock_af_ops dccp_ipv6_mapped;
-static struct inet_connection_sock_af_ops dccp_ipv6_af_ops;
+static const struct inet_connection_sock_af_ops dccp_ipv6_mapped;
+static const struct inet_connection_sock_af_ops dccp_ipv6_af_ops;
 
 static void dccp_v6_hash(struct sock *sk)
 {
@@ -1055,7 +1055,7 @@
 	return err;
 }
 
-static struct inet_connection_sock_af_ops dccp_ipv6_af_ops = {
+static const struct inet_connection_sock_af_ops dccp_ipv6_af_ops = {
 	.queue_xmit	   = inet6_csk_xmit,
 	.send_check	   = dccp_v6_send_check,
 	.rebuild_header	   = inet6_sk_rebuild_header,
@@ -1076,7 +1076,7 @@
 /*
  *	DCCP over IPv4 via INET6 API
  */
-static struct inet_connection_sock_af_ops dccp_ipv6_mapped = {
+static const struct inet_connection_sock_af_ops dccp_ipv6_mapped = {
 	.queue_xmit	   = ip_queue_xmit,
 	.send_check	   = dccp_v4_send_check,
 	.rebuild_header	   = inet_sk_rebuild_header,
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 3efbe94..ce7d3b0 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1754,7 +1754,7 @@
 	return 0;
 }
 
-struct inet_connection_sock_af_ops ipv4_specific = {
+const struct inet_connection_sock_af_ops ipv4_specific = {
 	.queue_xmit	   = ip_queue_xmit,
 	.send_check	   = tcp_v4_send_check,
 	.rebuild_header	   = inet_sk_rebuild_header,
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index eadbc58..d73617e 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -75,8 +75,8 @@
 
 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 const struct tcp_sock_af_ops tcp_sock_ipv6_specific;
 static const struct tcp_sock_af_ops tcp_sock_ipv6_mapped_specific;
@@ -1760,7 +1760,7 @@
 	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,
@@ -1792,7 +1792,7 @@
  *	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,