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/wireless/wext-proc.c b/net/wireless/wext-proc.c
index 273a7f7..8bafa31 100644
--- a/net/wireless/wext-proc.c
+++ b/net/wireless/wext-proc.c
@@ -140,7 +140,7 @@
 	.release = seq_release_net,
 };
 
-int wext_proc_init(struct net *net)
+int __net_init wext_proc_init(struct net *net)
 {
 	/* Create /proc/net/wireless entry */
 	if (!proc_net_fops_create(net, "wireless", S_IRUGO, &wireless_seq_fops))
@@ -149,7 +149,7 @@
 	return 0;
 }
 
-void wext_proc_exit(struct net *net)
+void __net_exit wext_proc_exit(struct net *net)
 {
 	proc_net_remove(net, "wireless");
 }