--- 3.5-rc3/net/ipv4/netfilter.c
+++ 3.5-rc3-ipv4-netfilter-sections/net/ipv4/netfilter.c
@@ -225,12 +225,12 @@ static const struct nf_afinfo nf_ip_afin
 	.route_key_size		= sizeof(struct ip_rt_info),
 };
 
-static int ipv4_netfilter_init(void)
+static int __init ipv4_netfilter_init(void)
 {
 	return nf_register_afinfo(&nf_ip_afinfo);
 }
 
-static void ipv4_netfilter_fini(void)
+static void __exit ipv4_netfilter_fini(void)
 {
 	nf_unregister_afinfo(&nf_ip_afinfo);
 }