Use __tcf_generic_walker() and __tcf_idr_search() helpers by saving
simp_net_id when registering act_simp_ops. And then remove the walk
and lookup hook functions in act_simple.

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

diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
index 8c1d60bde93e..0091e6cd707b 100644
--- a/net/sched/act_simple.c
+++ b/net/sched/act_simple.c
@@ -198,33 +198,15 @@ static int tcf_simp_dump(struct sk_buff *skb, struct tc_action *a,
 	return -1;
 }
 
-static int tcf_simp_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, simp_net_id);
-
-	return tcf_generic_walker(tn, skb, cb, type, ops, extack);
-}
-
-static int tcf_simp_search(struct net *net, struct tc_action **a, u32 index)
-{
-	struct tc_action_net *tn = net_generic(net, simp_net_id);
-
-	return tcf_idr_search(tn, a, index);
-}
-
 static struct tc_action_ops act_simp_ops = {
 	.kind		=	"simple",
 	.id		=	TCA_ID_SIMP,
+	.net_id		=	&simp_net_id,
 	.owner		=	THIS_MODULE,
 	.act		=	tcf_simp_act,
 	.dump		=	tcf_simp_dump,
 	.cleanup	=	tcf_simp_release,
 	.init		=	tcf_simp_init,
-	.walk		=	tcf_simp_walker,
-	.lookup		=	tcf_simp_search,
 	.size		=	sizeof(struct tcf_defact),
 };
 
-- 
2.17.1