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>
diff --git a/net/ieee802154/af_ieee802154.c b/net/ieee802154/af_ieee802154.c
index cd949d5..309348f 100644
--- a/net/ieee802154/af_ieee802154.c
+++ b/net/ieee802154/af_ieee802154.c
@@ -285,7 +285,7 @@
 	return rc;
 }
 
-static struct net_proto_family ieee802154_family_ops = {
+static const struct net_proto_family ieee802154_family_ops = {
 	.family		= PF_IEEE802154,
 	.create		= ieee802154_create,
 	.owner		= THIS_MODULE,