net: sched: act_csum: get rid of tcf_csum_walker and tcf_csum_search

tcf_csum_walker() and tcf_csum_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_csum.c

@@ -672,23 +672,6 @@ static void tcf_csum_cleanup(struct tc_action *a)
 		kfree_rcu(params, rcu);
 }
 
-static int tcf_csum_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_csum_ops.net_id);
-
-	return tcf_generic_walker(tn, skb, cb, type, ops, extack);
-}
-
-static int tcf_csum_search(struct net *net, struct tc_action **a, u32 index)
-{
-	struct tc_action_net *tn = net_generic(net, act_csum_ops.net_id);
-
-	return tcf_idr_search(tn, a, index);
-}
-
 static size_t tcf_csum_get_fill_size(const struct tc_action *act)
 {
 	return nla_total_size(sizeof(struct tc_csum));
@@ -721,8 +704,6 @@ static struct tc_action_ops act_csum_ops = {
 	.dump		= tcf_csum_dump,
 	.init		= tcf_csum_init,
 	.cleanup	= tcf_csum_cleanup,
-	.walk		= tcf_csum_walker,
-	.lookup		= tcf_csum_search,
 	.get_fill_size  = tcf_csum_get_fill_size,
 	.offload_act_setup = tcf_csum_offload_act_setup,
 	.size		= sizeof(struct tcf_csum),