From patchwork Tue Sep 5 11:47:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Nixdorf X-Patchwork-Id: 13374616 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 2B18BCA0FF8 for ; Tue, 5 Sep 2023 16:07:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234060AbjIEQHJ (ORCPT ); Tue, 5 Sep 2023 12:07:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37092 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1354466AbjIELzZ (ORCPT ); Tue, 5 Sep 2023 07:55:25 -0400 X-Greylist: delayed 327 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Tue, 05 Sep 2023 04:55:19 PDT Received: from mail.avm.de (mail.avm.de [212.42.244.119]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 431281AD; Tue, 5 Sep 2023 04:55:19 -0700 (PDT) Received: from mail-auth.avm.de (unknown [IPv6:2001:bf0:244:244::71]) by mail.avm.de (Postfix) with ESMTPS; Tue, 5 Sep 2023 13:49:50 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=avm.de; s=mail; t=1693914590; bh=ZsQ3D/ai0dRwVx5veqLcaOVIYyHU7UzerQkt4HdacU8=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=skhnokKEXI2ReIgvIaFyFEG+VfAeKi9lHdzEVsZBtJBfyyMskG1mUbtBurTx05A84 Jl0yBczRuZ2WRti3zyHLR+bV0QV7NObaJVE+XmmncW97TI1MJUQgBh8NLHFt3Dnen/ NMqzCKmOFYwx+DsYLjEkBBeMz8Ws+WabDPQmipvc= Received: from localhost (unknown [172.17.88.63]) by mail-auth.avm.de (Postfix) with ESMTPSA id 0668B82160; Tue, 5 Sep 2023 13:49:50 +0200 (CEST) From: Johannes Nixdorf Date: Tue, 05 Sep 2023 13:47:18 +0200 Subject: [PATCH net-next v3 1/6] net: bridge: Set BR_FDB_ADDED_BY_USER early in fdb_add_entry MIME-Version: 1.0 Message-Id: <20230905-fdb_limit-v3-1-7597cd500a82@avm.de> References: <20230905-fdb_limit-v3-0-7597cd500a82@avm.de> In-Reply-To: <20230905-fdb_limit-v3-0-7597cd500a82@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-purgate-ID: 149429::1693914590-864E198B-EF077B6C/0/0 X-purgate-type: clean X-purgate-size: 1370 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 --- net/bridge/br_fdb.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index e69a872bfc1d..06e28ef8d9ff 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -1056,7 +1056,7 @@ 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 +1069,8 @@ 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 +1102,6 @@ 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)