From patchwork Tue Sep 19 08:12:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Nixdorf X-Patchwork-Id: 13391297 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 B5279CD5BAA for ; Tue, 19 Sep 2023 12:17:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231945AbjISMRo (ORCPT ); Tue, 19 Sep 2023 08:17:44 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58216 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232043AbjISMR1 (ORCPT ); Tue, 19 Sep 2023 08:17:27 -0400 Received: from mail.avm.de (mail.avm.de [212.42.244.94]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 903E7CF5; Tue, 19 Sep 2023 05:16:36 -0700 (PDT) Received: from mail-auth.avm.de (dovecot-mx-01.avm.de [212.42.244.71]) by mail.avm.de (Postfix) with ESMTPS; Tue, 19 Sep 2023 14:16:34 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=avm.de; s=mail; t=1695125794; bh=FwyAToRIE29YQYTXCZD36dnr5jrFFg1GpuCyJILagjE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=bDYGCiaNi2SMoB4Lq20YNO9OSX5appH2rXn5siz/Drn8RfD4iF4K36cjToWpcDfVd e7nJU4MIKMYNVCEJD42MsX0LP/2rgxBnmhBJGysdHEYleoFVkLdO38xxlor72DgWLG QWwGswxJmMDtXDRXD2HfMSdkTiOFUFCBZACOzzZ8= Received: from localhost (unknown [172.17.88.63]) by mail-auth.avm.de (Postfix) with ESMTPSA id 15F5981FF3; Tue, 19 Sep 2023 14:16:34 +0200 (CEST) From: Johannes Nixdorf Date: Tue, 19 Sep 2023 10:12:48 +0200 Subject: [PATCH net-next v4 1/6] net: bridge: Set BR_FDB_ADDED_BY_USER early in fdb_add_entry MIME-Version: 1.0 Message-Id: <20230919-fdb_limit-v4-1-39f0293807b8@avm.de> References: <20230919-fdb_limit-v4-0-39f0293807b8@avm.de> In-Reply-To: <20230919-fdb_limit-v4-0-39f0293807b8@avm.de> To: "David S. Miller" , Andrew Lunn , David Ahern , Eric Dumazet , Florian Fainelli , Ido Schimmel , Jakub Kicinski , Nikolay Aleksandrov , Oleksij Rempel , Paolo Abeni , Roopa Prabhu , Shuah Khan , Vladimir Oltean Cc: bridge@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Johannes Nixdorf X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1695111167; l=1376; i=jnixdorf-oss@avm.de; s=20230906; h=from:subject:message-id; bh=FwyAToRIE29YQYTXCZD36dnr5jrFFg1GpuCyJILagjE=; b=4H9SGHafMlvvhzLNe+S2ZC1itIhii7CabVi/bmpupLrRj5CyQXRME/UGIiDnlNZgJoDI3FcKL 1f27fMU577fAiVdzuph2/KCHWC8a67UWmmHku7Jz7fuUjk4Pqxt9Kcl X-Developer-Key: i=jnixdorf-oss@avm.de; a=ed25519; pk=KMraV4q7ANHRrwjf9EVhvU346JsqGGNSbPKeNILOQfo= X-purgate-ID: 149429::1695125794-54606D5A-73B3AB27/0/0 X-purgate-type: clean X-purgate-size: 1378 X-purgate-Ad: Categorized by eleven eXpurgate (R) http://www.eleven.de X-purgate: This mail is considered clean (visit http://www.eleven.de for further information) X-purgate: clean Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org In preparation of the following fdb limit for dynamically learned entries, allow fdb_create to detect that the entry was added by the user. This way it can skip applying the limit in this case. Signed-off-by: Johannes Nixdorf Acked-by: Nikolay Aleksandrov Reviewed-by: Ido Schimmel --- net/bridge/br_fdb.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index e69a872bfc1d..f517ea92132c 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -1056,7 +1056,8 @@ static int fdb_add_entry(struct net_bridge *br, struct net_bridge_port *source, if (!(flags & NLM_F_CREATE)) return -ENOENT; - fdb = fdb_create(br, source, addr, vid, 0); + fdb = fdb_create(br, source, addr, vid, + BIT(BR_FDB_ADDED_BY_USER)); if (!fdb) return -ENOMEM; @@ -1069,6 +1070,8 @@ static int fdb_add_entry(struct net_bridge *br, struct net_bridge_port *source, WRITE_ONCE(fdb->dst, source); modified = true; } + + set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags); } if (fdb_to_nud(br, fdb) != state) { @@ -1100,8 +1103,6 @@ static int fdb_add_entry(struct net_bridge *br, struct net_bridge_port *source, if (fdb_handle_notify(fdb, notify)) modified = true; - set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags); - fdb->used = jiffies; if (modified) { if (refresh)