netdev - [PATCH net-next RFC 08/20] net/sched: act_api: add struct p4tc_action

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Date:   Tue, 24 Jan 2023 12:04:58 -0500
From:   Jamal Hadi Salim <jhs@...atatu.com>
To:     netdev@...r.kernel.org
Cc:     kernel@...atatu.com, deb.chatterjee@...el.com,
        anjali.singhai@...el.com, namrata.limaye@...el.com,
        khalidm@...dia.com, tom@...anda.io, pratyush@...anda.io,
        jiri@...nulli.us, xiyou.wangcong@...il.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
        vladbu@...dia.com, simon.horman@...igine.com
Subject: [PATCH net-next RFC 08/20] net/sched: act_api: add struct p4tc_action_ops as a parameter to lookup callback

For P4TC dynamic actions, we require information from struct tc_action_ops,
specifically the action kind, to find and locate the dynamic action
information for the lookup operation.

Signed-off-by: Victor Nogueira <victor@...atatu.com>
Signed-off-by: Pedro Tammela <pctammela@...atatu.com>
Signed-off-by: Jamal Hadi Salim <jhs@...atatu.com>
---
 include/net/act_api.h | 3 ++-
 net/sched/act_api.c   | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/net/act_api.h b/include/net/act_api.h
index 26d8d33f9..fd012270d 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -115,7 +115,8 @@ struct tc_action_ops {
 		       struct tcf_result *); /* called under RCU BH lock*/
 	int     (*dump)(struct sk_buff *, struct tc_action *, int, int);
 	void	(*cleanup)(struct tc_action *);
-	int     (*lookup)(struct net *net, struct tc_action **a, u32 index);
+	int     (*lookup)(struct net *net, const struct tc_action_ops *ops,
+			  struct tc_action **a, u32 index);
 	int     (*init)(struct net *net, struct nlattr *nla,
 			struct nlattr *est, struct tc_action **act,
 			struct tcf_proto *tp,
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index 628447669..e33b0c248 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -696,7 +696,7 @@ int __tcf_idr_search(struct net *net, const struct tc_action_ops *ops,
 	struct tc_action_net *tn = net_generic(net, ops->net_id);
 
 	if (unlikely(ops->lookup))
-		return ops->lookup(net, a, index);
+		return ops->lookup(net, ops, a, index);
 
 	return tcf_idr_search(tn, a, index);
 }
-- 
2.34.1