net: spread __net_init, __net_exit

__net_init/__net_exit are apparently not going away, so use them
to full extent.

In some cases __net_init was removed, because it was called from
__net_exit code.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 02a3b2c..9a24377 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -708,7 +708,7 @@
 	.notifier_call = fib_rules_event,
 };
 
-static int fib_rules_net_init(struct net *net)
+static int __net_init fib_rules_net_init(struct net *net)
 {
 	INIT_LIST_HEAD(&net->rules_ops);
 	spin_lock_init(&net->rules_mod_lock);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 794bcb8..62f3878a 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1386,7 +1386,7 @@
 };
 
 
-static int rtnetlink_net_init(struct net *net)
+static int __net_init rtnetlink_net_init(struct net *net)
 {
 	struct sock *sk;
 	sk = netlink_kernel_create(net, NETLINK_ROUTE, RTNLGRP_MAX,
@@ -1397,7 +1397,7 @@
 	return 0;
 }
 
-static void rtnetlink_net_exit(struct net *net)
+static void __net_exit rtnetlink_net_exit(struct net *net)
 {
 	netlink_kernel_release(net->rtnl);
 	net->rtnl = NULL;
diff --git a/net/core/sock.c b/net/core/sock.c
index 10b1d32..ceef50b 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2140,13 +2140,13 @@
 }
 EXPORT_SYMBOL_GPL(sock_prot_inuse_get);
 
-static int sock_inuse_init_net(struct net *net)
+static int __net_init sock_inuse_init_net(struct net *net)
 {
 	net->core.inuse = alloc_percpu(struct prot_inuse);
 	return net->core.inuse ? 0 : -ENOMEM;
 }
 
-static void sock_inuse_exit_net(struct net *net)
+static void __net_exit sock_inuse_exit_net(struct net *net)
 {
 	free_percpu(net->core.inuse);
 }