net: constify remaining proto_ops

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 364bfc7..e48ca5d 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -1158,7 +1158,7 @@
 	.flags		= INET6_PROTO_NOPOLICY | INET6_PROTO_FINAL,
 };
 
-static struct proto_ops inet6_dccp_ops = {
+static const struct proto_ops inet6_dccp_ops = {
 	.family		   = PF_INET6,
 	.owner		   = THIS_MODULE,
 	.release	   = inet6_release,
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 49c15b4..3c915fb 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -34,7 +34,7 @@
 
 static char iucv_userid[80];
 
-static struct proto_ops iucv_sock_ops;
+static const struct proto_ops iucv_sock_ops;
 
 static struct proto iucv_proto = {
 	.name		= "AF_IUCV",
@@ -1682,7 +1682,7 @@
 	bh_unlock_sock(sk);
 }
 
-static struct proto_ops iucv_sock_ops = {
+static const struct proto_ops iucv_sock_ops = {
 	.family		= PF_IUCV,
 	.owner		= THIS_MODULE,
 	.release	= iucv_sock_release,
diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c
index 108ed2e..6b58aef 100644
--- a/net/rds/af_rds.c
+++ b/net/rds/af_rds.c
@@ -359,7 +359,7 @@
 	.obj_size = sizeof(struct rds_sock),
 };
 
-static struct proto_ops rds_proto_ops = {
+static const struct proto_ops rds_proto_ops = {
 	.family =	AF_RDS,
 	.owner =	THIS_MODULE,
 	.release =	rds_release,
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index e5f478c..1e166c9 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -63,7 +63,7 @@
 static HLIST_HEAD(rose_list);
 static DEFINE_SPINLOCK(rose_list_lock);
 
-static struct proto_ops rose_proto_ops;
+static const struct proto_ops rose_proto_ops;
 
 ax25_address rose_callsign;
 
@@ -1515,7 +1515,7 @@
 	.owner		=	THIS_MODULE,
 };
 
-static struct proto_ops rose_proto_ops = {
+static const struct proto_ops rose_proto_ops = {
 	.family		=	PF_ROSE,
 	.owner		=	THIS_MODULE,
 	.release	=	rose_release,