IPVS: remove unused init and cleanup functions.

After restructuring, there is some unused or empty functions
left to be removed.
Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

include/net/ip_vs.h

@@ -1117,8 +1117,6 @@ extern void ip_vs_app_inc_put(struct ip_vs_app *inc);
 
 extern int ip_vs_app_pkt_out(struct ip_vs_conn *, struct sk_buff *skb);
 extern int ip_vs_app_pkt_in(struct ip_vs_conn *, struct sk_buff *skb);
-extern int ip_vs_app_init(void);
-extern void ip_vs_app_cleanup(void);
 
 void ip_vs_bind_pe(struct ip_vs_service *svc, struct ip_vs_pe *pe);
 void ip_vs_unbind_pe(struct ip_vs_service *svc);
@@ -1221,15 +1219,11 @@ extern int start_sync_thread(struct net *net, int state, char *mcast_ifn,
 			     __u8 syncid);
 extern int stop_sync_thread(struct net *net, int state);
 extern void ip_vs_sync_conn(struct net *net, struct ip_vs_conn *cp);
-extern int ip_vs_sync_init(void);
-extern void ip_vs_sync_cleanup(void);
 
 
 /*
  *      IPVS rate estimator prototypes (from ip_vs_est.c)
  */
-extern int ip_vs_estimator_init(void);
-extern void ip_vs_estimator_cleanup(void);
 extern void ip_vs_start_estimator(struct net *net, struct ip_vs_stats *stats);
 extern void ip_vs_stop_estimator(struct net *net, struct ip_vs_stats *stats);
 extern void ip_vs_zero_estimator(struct ip_vs_stats *stats);

net/netfilter/ipvs/ip_vs_app.c

@@ -589,13 +589,3 @@ void __net_exit ip_vs_app_net_cleanup(struct net *net)
 {
 	proc_net_remove(net, "ip_vs_app");
 }
-
-int __init ip_vs_app_init(void)
-{
-	return 0;
-}
-
-
-void ip_vs_app_cleanup(void)
-{
-}

net/netfilter/ipvs/ip_vs_core.c

@@ -1967,36 +1967,23 @@ static int __init ip_vs_init(void)
 {
 	int ret;
 
-	ip_vs_estimator_init();
 	ret = ip_vs_control_init();
 	if (ret < 0) {
 		pr_err("can't setup control.\n");
-		goto cleanup_estimator;
+		goto exit;
 	}
 
 	ip_vs_protocol_init();
 
-	ret = ip_vs_app_init();
-	if (ret < 0) {
-		pr_err("can't setup application helper.\n");
-		goto cleanup_protocol;
-	}
-
 	ret = ip_vs_conn_init();
 	if (ret < 0) {
 		pr_err("can't setup connection table.\n");
-		goto cleanup_app;
-	}
-
-	ret = ip_vs_sync_init();
-	if (ret < 0) {
-		pr_err("can't setup sync data.\n");
-		goto cleanup_conn;
+		goto cleanup_protocol;
 	}
 
 	ret = register_pernet_subsys(&ipvs_core_ops);	/* Alloc ip_vs struct */
 	if (ret < 0)
-		goto cleanup_sync;
+		goto cleanup_conn;
 
 	ret = register_pernet_device(&ipvs_core_dev_ops);
 	if (ret < 0)
@@ -2016,17 +2003,12 @@ static int __init ip_vs_init(void)
 	unregister_pernet_device(&ipvs_core_dev_ops);
 cleanup_sub:
 	unregister_pernet_subsys(&ipvs_core_ops);
-cleanup_sync:
-	ip_vs_sync_cleanup();
 cleanup_conn:
 	ip_vs_conn_cleanup();
-cleanup_app:
-	ip_vs_app_cleanup();
 cleanup_protocol:
 	ip_vs_protocol_cleanup();
 	ip_vs_control_cleanup();
-cleanup_estimator:
-	ip_vs_estimator_cleanup();
+exit:
 	return ret;
 }
 
@@ -2035,12 +2017,9 @@ static void __exit ip_vs_cleanup(void)
 	nf_unregister_hooks(ip_vs_ops, ARRAY_SIZE(ip_vs_ops));
 	unregister_pernet_device(&ipvs_core_dev_ops);
 	unregister_pernet_subsys(&ipvs_core_ops);	/* free ip_vs struct */
-	ip_vs_sync_cleanup();
 	ip_vs_conn_cleanup();
-	ip_vs_app_cleanup();
 	ip_vs_protocol_cleanup();
 	ip_vs_control_cleanup();
-	ip_vs_estimator_cleanup();
 	pr_info("ipvs unloaded.\n");
 }
 

net/netfilter/ipvs/ip_vs_est.c

@@ -207,12 +207,3 @@ void __net_exit ip_vs_estimator_net_cleanup(struct net *net)
 {
 	del_timer_sync(&net_ipvs(net)->est_timer);
 }
-
-int __init ip_vs_estimator_init(void)
-{
-	return 0;
-}
-
-void ip_vs_estimator_cleanup(void)
-{
-}

net/netfilter/ipvs/ip_vs_sync.c

@@ -1689,12 +1689,3 @@ void ip_vs_sync_net_cleanup(struct net *net)
 	if (retc && retc != -ESRCH)
 		pr_err("Failed to stop Backup Daemon\n");
 }
-
-int __init ip_vs_sync_init(void)
-{
-	return 0;
-}
-
-void ip_vs_sync_cleanup(void)
-{
-}