net: mark net_proto_ops as const

All usages of structure net_proto_ops should be declared const.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/iucv/af_iucv.c

diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index bada1b9..004134b 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1715,7 +1715,7 @@
 	.getsockopt	= iucv_sock_getsockopt,
 };
 
-static struct net_proto_family iucv_sock_family_ops = {
+static const struct net_proto_family iucv_sock_family_ops = {
 	.family	= AF_IUCV,
 	.owner	= THIS_MODULE,
 	.create	= iucv_sock_create,