[PATCH net-next 04/22] net: sched: act_csum: get rid of tcf_csum_walker and tcf_csum_search

[Zhengchao Shao]

Use __tcf_generic_walker() and __tcf_idr_search() helpers by saving
csum_net_id when registering act_csum_ops. And then remove the walk
and lookup hook functions in act_csum.

Signed-off-by: Zhengchao Shao <shaozhengchao@xxxxxxxxxx>
---
 net/sched/act_csum.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index 22847ee009ef..095132b0f96a 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -673,23 +673,6 @@ 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, csum_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, csum_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));
@@ -717,13 +700,12 @@ static int tcf_csum_offload_act_setup(struct tc_action *act, void *entry_data,
 static struct tc_action_ops act_csum_ops = {
 	.kind		= "csum",
 	.id		= TCA_ID_CSUM,
+	.net_id		= &csum_net_id,
 	.owner		= THIS_MODULE,
 	.act		= tcf_csum_act,
 	.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),
-- 
2.17.1