[NET]: More network layer static funcs and data.

net/core/neighbour.c

@@ -1479,7 +1479,7 @@ static void neigh_app_notify(struct neighbour *n)
 
 #ifdef CONFIG_SYSCTL
 
-struct neigh_sysctl_table {
+static struct neigh_sysctl_table {
 	struct ctl_table_header *sysctl_header;
 	ctl_table		neigh_vars[17];
 	ctl_table		neigh_dev[2];

net/ipv4/route.c

@@ -144,7 +144,7 @@ static void		 ip_rt_update_pmtu(struct dst_entry *dst, u32 mtu);
 static int rt_garbage_collect(void);
 
 
-struct dst_ops ipv4_dst_ops = {
+static struct dst_ops ipv4_dst_ops = {
 	.family =		AF_INET,
 	.protocol =		__constant_htons(ETH_P_IP),
 	.gc =			rt_garbage_collect,
@@ -1525,7 +1525,7 @@ static int ip_route_input_mc(struct sk_buff *skb, u32 daddr, u32 saddr,
  *	2. IP spoofing attempts are filtered with 100% of guarantee.
  */
 
-int ip_route_input_slow(struct sk_buff *skb, u32 daddr, u32 saddr,
+static int ip_route_input_slow(struct sk_buff *skb, u32 daddr, u32 saddr,
 			u8 tos, struct net_device *dev)
 {
 	struct fib_result res;
@@ -1910,7 +1910,7 @@ int ip_route_input(struct sk_buff *skb, u32 daddr, u32 saddr,
  * Major route resolver routine.
  */
 
-int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
+static int ip_route_output_slow(struct rtable **rp, const struct flowi *oldflp)
 {
 	u32 tos	= oldflp->fl4_tos & (IPTOS_RT_MASK | RTO_ONLINK);
 	struct flowi fl = { .nl_u = { .ip4_u =

net/ipv6/af_inet6.c

@@ -539,7 +539,7 @@ struct proto_ops inet6_dgram_ops = {
 	.sendpage =	sock_no_sendpage,
 };
 
-struct net_proto_family inet6_family_ops = {
+static struct net_proto_family inet6_family_ops = {
 	.family = PF_INET6,
 	.create = inet6_create,
 	.owner	= THIS_MODULE,

net/ipv6/ndisc.c

@@ -1418,7 +1418,7 @@ static int ndisc_netdev_event(struct notifier_block *this, unsigned long event,
 	return NOTIFY_DONE;
 }
 
-struct notifier_block ndisc_netdev_notifier = {
+static struct notifier_block ndisc_netdev_notifier = {
 	.notifier_call = ndisc_netdev_event,
 };