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Date:   Tue, 27 Sep 2022 20:48:54 +0800
From:   Zhengchao Shao <shaozhengchao@...wei.com>
To:     <netdev@...r.kernel.org>, <bpf@...r.kernel.org>,
        <jhs@...atatu.com>, <xiyou.wangcong@...il.com>, <jiri@...nulli.us>,
        <edumazet@...gle.com>, <kuba@...nel.org>, <pabeni@...hat.com>
CC:     <ast@...nel.org>, <daniel@...earbox.net>, <andrii@...nel.org>,
        <martin.lau@...ux.dev>, <song@...nel.org>, <yhs@...com>,
        <john.fastabend@...il.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 2/3] net: sched: cls_api: introduce tc_cls_bind_class() helper

All the bind_class callback duplicate the same logic, this patch
introduces tc_cls_bind_class() helper for common usage.

Signed-off-by: Zhengchao Shao <shaozhengchao@...wei.com>
---
 include/net/pkt_cls.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index d376c995d906..4cabb32a2ad9 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -210,6 +210,18 @@ tcf_unbind_filter(struct tcf_proto *tp, struct tcf_result *r)
 	__tcf_unbind_filter(q, r);
 }
 
+static inline void tc_cls_bind_class(u32 classid, unsigned long cl,
+				     void *q, struct tcf_result *res,
+				     unsigned long base)
+{
+	if (res->classid == classid) {
+		if (cl)
+			__tcf_bind_filter(q, res, base);
+		else
+			__tcf_unbind_filter(q, res);
+	}
+}
+
 struct tcf_exts {
 #ifdef CONFIG_NET_CLS_ACT
 	__u32	type; /* for backward compat(TCA_OLD_COMPAT) */
-- 
2.17.1

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