From patchwork Tue Sep 13 04:21:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: shaozhengchao X-Patchwork-Id: 12974320 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 39869C6FA82 for ; Tue, 13 Sep 2022 04:21:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230232AbiIMEVM (ORCPT ); Tue, 13 Sep 2022 00:21:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40226 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230159AbiIMEUZ (ORCPT ); Tue, 13 Sep 2022 00:20:25 -0400 Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 73A9F18E1C; Mon, 12 Sep 2022 21:20:04 -0700 (PDT) Received: from dggpeml500026.china.huawei.com (unknown [172.30.72.57]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4MRVYp1ZDqzHntH; Tue, 13 Sep 2022 12:17:50 +0800 (CST) Received: from huawei.com (10.175.101.6) by dggpeml500026.china.huawei.com (7.185.36.106) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Tue, 13 Sep 2022 12:19:50 +0800 From: Zhengchao Shao To: , , , , , , , , , , CC: , , , , , , , , , , , , , Subject: [PATCH net-next 1/9] net/sched: cls_api: add helper for tc cls walker stats updating Date: Tue, 13 Sep 2022 12:21:27 +0800 Message-ID: <20220913042135.58342-2-shaozhengchao@huawei.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220913042135.58342-1-shaozhengchao@huawei.com> References: <20220913042135.58342-1-shaozhengchao@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.101.6] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpeml500026.china.huawei.com (7.185.36.106) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org The walk implementation of most tc cls modules is basically the same. That is, the values of count and skip are checked first. If count is greater than or equal to skip, the registered fn function is executed. Otherwise, increase the value of count. So we can reconstruct them. Signed-off-by: Zhengchao Shao --- include/net/pkt_cls.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h index d9d90e6925e1..d3cbbabf7592 100644 --- a/include/net/pkt_cls.h +++ b/include/net/pkt_cls.h @@ -81,6 +81,19 @@ int tcf_classify(struct sk_buff *skb, const struct tcf_proto *tp, struct tcf_result *res, bool compat_mode); +static inline bool tc_cls_stats_update(struct tcf_proto *tp, + struct tcf_walker *arg, + void *filter) +{ + if (arg->count >= arg->skip && arg->fn(tp, filter, arg) < 0) { + arg->stop = 1; + return false; + } + + arg->count++; + return true; +} + #else static inline bool tcf_block_shared(struct tcf_block *block) {