net: sched: act_ct: get rid of tcf_ct_walker and tcf_ct_search

tcf_ct_walker() and tcf_ct_search() do the same thing as generic
walk/search function, so remove them.
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/sched/act_ct.c

@@ -1557,23 +1557,6 @@ static inline int tcf_ct_dump(struct sk_buff *skb, struct tc_action *a,
 	return -1;
 }
 
-static int tcf_ct_walker(struct net *net, struct sk_buff *skb,
-			 struct netlink_callback *cb, int type,
-			 const struct tc_action_ops *ops,
-			 struct netlink_ext_ack *extack)
-{
-	struct tc_action_net *tn = net_generic(net, act_ct_ops.net_id);
-
-	return tcf_generic_walker(tn, skb, cb, type, ops, extack);
-}
-
-static int tcf_ct_search(struct net *net, struct tc_action **a, u32 index)
-{
-	struct tc_action_net *tn = net_generic(net, act_ct_ops.net_id);
-
-	return tcf_idr_search(tn, a, index);
-}
-
 static void tcf_stats_update(struct tc_action *a, u64 bytes, u64 packets,
 			     u64 drops, u64 lastuse, bool hw)
 {
@@ -1612,8 +1595,6 @@ static struct tc_action_ops act_ct_ops = {
 	.dump		=	tcf_ct_dump,
 	.init		=	tcf_ct_init,
 	.cleanup	=	tcf_ct_cleanup,
-	.walk		=	tcf_ct_walker,
-	.lookup		=	tcf_ct_search,
 	.stats_update	=	tcf_stats_update,
 	.offload_act_setup =	tcf_ct_offload_act_setup,
 	.size		=	sizeof(struct tcf_ct),