net_sched: fix a regression in tc actions

This patch fixes:
1) pass mask rather than size to tcf_hashinfo_init()
2) the cleanup should be in reversed order in mirred_cleanup_module()
Reported-by: NEric Dumazet <eric.dumazet@gmail.com>
Fixes: 369ba567 ("net_sched: init struct tcf_hashinfo at register time")
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: NCong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: NJamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/sched/act_csum.c

@@ -586,7 +586,7 @@ MODULE_LICENSE("GPL");
 
 static int __init csum_init_module(void)
 {
-	int err = tcf_hashinfo_init(&csum_hash_info, CSUM_TAB_MASK+1);
+	int err = tcf_hashinfo_init(&csum_hash_info, CSUM_TAB_MASK);
 	if (err)
 		return err;
 

net/sched/act_gact.c

@@ -208,7 +208,7 @@ MODULE_LICENSE("GPL");
 
 static int __init gact_init_module(void)
 {
-	int err = tcf_hashinfo_init(&gact_hash_info, GACT_TAB_MASK+1);
+	int err = tcf_hashinfo_init(&gact_hash_info, GACT_TAB_MASK);
 	if (err)
 		return err;
 #ifdef CONFIG_GACT_PROB

net/sched/act_ipt.c

@@ -314,7 +314,7 @@ MODULE_ALIAS("act_xt");
 static int __init ipt_init_module(void)
 {
 	int ret1, ret2, err;
-	err = tcf_hashinfo_init(&ipt_hash_info, IPT_TAB_MASK+1);
+	err = tcf_hashinfo_init(&ipt_hash_info, IPT_TAB_MASK);
 	if (err)
 		return err;
 

net/sched/act_mirred.c

@@ -276,7 +276,7 @@ static int __init mirred_init_module(void)
 	if (err)
 		return err;
 
-	err = tcf_hashinfo_init(&mirred_hash_info, MIRRED_TAB_MASK+1);
+	err = tcf_hashinfo_init(&mirred_hash_info, MIRRED_TAB_MASK);
 	if (err) {
 		unregister_netdevice_notifier(&mirred_device_notifier);
 		return err;
@@ -287,9 +287,9 @@ static int __init mirred_init_module(void)
 
 static void __exit mirred_cleanup_module(void)
 {
-	unregister_netdevice_notifier(&mirred_device_notifier);
-	tcf_hashinfo_destroy(&mirred_hash_info);
 	tcf_unregister_action(&act_mirred_ops);
+	tcf_hashinfo_destroy(&mirred_hash_info);
+	unregister_netdevice_notifier(&mirred_device_notifier);
 }
 
 module_init(mirred_init_module);

net/sched/act_nat.c

@@ -310,7 +310,7 @@ MODULE_LICENSE("GPL");
 
 static int __init nat_init_module(void)
 {
-	int err = tcf_hashinfo_init(&nat_hash_info, NAT_TAB_MASK+1);
+	int err = tcf_hashinfo_init(&nat_hash_info, NAT_TAB_MASK);
 	if (err)
 		return err;
 	return tcf_register_action(&act_nat_ops);

net/sched/act_pedit.c

@@ -246,7 +246,7 @@ MODULE_LICENSE("GPL");
 
 static int __init pedit_init_module(void)
 {
-	int err = tcf_hashinfo_init(&pedit_hash_info, PEDIT_TAB_MASK+1);
+	int err = tcf_hashinfo_init(&pedit_hash_info, PEDIT_TAB_MASK);
 	if (err)
 		return err;
 	return tcf_register_action(&act_pedit_ops);

net/sched/act_police.c

@@ -396,7 +396,7 @@ static struct tc_action_ops act_police_ops = {
 static int __init
 police_init_module(void)
 {
-	int err = tcf_hashinfo_init(&police_hash_info, POL_TAB_MASK+1);
+	int err = tcf_hashinfo_init(&police_hash_info, POL_TAB_MASK);
 	if (err)
 		return err;
 	err = tcf_register_action(&act_police_ops);

net/sched/act_simple.c

@@ -203,7 +203,7 @@ MODULE_LICENSE("GPL");
 static int __init simp_init_module(void)
 {
 	int err, ret;
-	err = tcf_hashinfo_init(&simp_hash_info, SIMP_TAB_MASK+1);
+	err = tcf_hashinfo_init(&simp_hash_info, SIMP_TAB_MASK);
 	if (err)
 		return err;
 

net/sched/act_skbedit.c

@@ -203,7 +203,7 @@ MODULE_LICENSE("GPL");
 
 static int __init skbedit_init_module(void)
 {
-	int err = tcf_hashinfo_init(&skbedit_hash_info, SKBEDIT_TAB_MASK+1);
+	int err = tcf_hashinfo_init(&skbedit_hash_info, SKBEDIT_TAB_MASK);
 	if (err)
 		return err;
 	return tcf_register_action(&act_skbedit_ops);