netdev - [PATCH net-next 10/22] net: sched: act_ipt: get rid of tcf_ipt_walker/tcf_xt_walker and tcf_ipt_search/tcf_xt

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Message-ID: <20220902112446.29858-11-shaozhengchao@huawei.com>
Date:   Fri, 2 Sep 2022 19:24:34 +0800
From:   Zhengchao Shao <shaozhengchao@...wei.com>
To:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <bpf@...r.kernel.org>, <davem@...emloft.net>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>,
        <jhs@...atatu.com>, <xiyou.wangcong@...il.com>, <jiri@...nulli.us>,
        <martin.lau@...ux.dev>
CC:     <daniel@...earbox.net>, <john.fastabend@...il.com>,
        <ast@...nel.org>, <andrii@...nel.org>, <song@...nel.org>,
        <yhs@...com>, <kpsingh@...nel.org>, <sdf@...gle.com>,
        <haoluo@...gle.com>, <jolsa@...nel.org>, <weiyongjun1@...wei.com>,
        <yuehaibing@...wei.com>, <shaozhengchao@...wei.com>
Subject: [PATCH net-next 10/22] net: sched: act_ipt: get rid of tcf_ipt_walker/tcf_xt_walker and tcf_ipt_search/tcf_xt_search

Use __tcf_generic_walker() and __tcf_idr_search() helpers by saving
ipt_net_id/xt_net_id when registering act_ipt_ops/act_xt_ops. And
then remove the walk and lookup hook functions in act_ipt.

Signed-off-by: Zhengchao Shao <shaozhengchao@...wei.com>
---
 net/sched/act_ipt.c | 40 ++--------------------------------------
 1 file changed, 2 insertions(+), 38 deletions(-)

diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 2f3d507c24a1..abacfb134caf 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -316,33 +316,15 @@ static int tcf_ipt_dump(struct sk_buff *skb, struct tc_action *a, int bind,
 	return -1;
 }
 
-static int tcf_ipt_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, ipt_net_id);
-
-	return tcf_generic_walker(tn, skb, cb, type, ops, extack);
-}
-
-static int tcf_ipt_search(struct net *net, struct tc_action **a, u32 index)
-{
-	struct tc_action_net *tn = net_generic(net, ipt_net_id);
-
-	return tcf_idr_search(tn, a, index);
-}
-
 static struct tc_action_ops act_ipt_ops = {
 	.kind		=	"ipt",
 	.id		=	TCA_ID_IPT,
+	.net_id		=	&ipt_net_id,
 	.owner		=	THIS_MODULE,
 	.act		=	tcf_ipt_act,
 	.dump		=	tcf_ipt_dump,
 	.cleanup	=	tcf_ipt_release,
 	.init		=	tcf_ipt_init,
-	.walk		=	tcf_ipt_walker,
-	.lookup		=	tcf_ipt_search,
 	.size		=	sizeof(struct tcf_ipt),
 };
 
@@ -365,33 +347,15 @@ static struct pernet_operations ipt_net_ops = {
 	.size = sizeof(struct tc_action_net),
 };
 
-static int tcf_xt_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, xt_net_id);
-
-	return tcf_generic_walker(tn, skb, cb, type, ops, extack);
-}
-
-static int tcf_xt_search(struct net *net, struct tc_action **a, u32 index)
-{
-	struct tc_action_net *tn = net_generic(net, xt_net_id);
-
-	return tcf_idr_search(tn, a, index);
-}
-
 static struct tc_action_ops act_xt_ops = {
 	.kind		=	"xt",
 	.id		=	TCA_ID_XT,
+	.net_id		=	&xt_net_id,
 	.owner		=	THIS_MODULE,
 	.act		=	tcf_ipt_act,
 	.dump		=	tcf_ipt_dump,
 	.cleanup	=	tcf_ipt_release,
 	.init		=	tcf_xt_init,
-	.walk		=	tcf_xt_walker,
-	.lookup		=	tcf_xt_search,
 	.size		=	sizeof(struct tcf_ipt),
 };
 
-- 
2.17.1