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[23.128.96.18]) by mx.google.com with ESMTP id a4si10861501eds.291.2021.08.02.14.00.37; Mon, 02 Aug 2021 14:01:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=q9nemMRF; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231623AbhHBU7X (ORCPT + 99 others); Mon, 2 Aug 2021 16:59:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33790 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231194AbhHBU7W (ORCPT ); Mon, 2 Aug 2021 16:59:22 -0400 Received: from mail-ed1-x52a.google.com (mail-ed1-x52a.google.com [IPv6:2a00:1450:4864:20::52a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9D979C061760; Mon, 2 Aug 2021 13:59:11 -0700 (PDT) Received: by mail-ed1-x52a.google.com with SMTP id x90so26258856ede.8; Mon, 02 Aug 2021 13:59:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=w+kjeXZn22Jr79nUGbix7ah/oSHxdioLF/ZCkl2Qub4=; b=q9nemMRF/WSOv+S3b/pGwEpZvXruqpf++H8j70fVBSnlwIpv1taA9OCzTyFsY9vCzA Hx4o8eXwqyVsauqgTyQ0EaZi34B5MrwytQIPv0+p5ODgyG4RZSwxztKW1jXgQ7ejvVlq 234NpGtbrFngZaqL5g0uPZqRuhbBz4FUBUJAHqXkvL0hmZX5AIzqNhClFegwv+mc5PeK zQlbjihmAOTdT6PeiFB46OgCiIiwNZT3DUP5GmPX5s0rWgYqy5tkpArIxFclX0vun91r YvC1qgs8AAE+P7zMzqA5KFJkeRImFCtLdtHHktjiOpiuFM4HML5dO6EBZfTNz3tJuO09 q99g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=w+kjeXZn22Jr79nUGbix7ah/oSHxdioLF/ZCkl2Qub4=; b=eOBQqZKUvh2Su4uuWqoSk7KCcgqQVhDymyZOyrZGcNr+9NSuGhjs8GA+iOG2ppvFf7 /tVfXdL2+Y5EB6GEHn3/2bSw+NyUrzTsidBtY0w0NikdhN/zuo+G0HCk/d8vHiR9K2Z2 R7iFc8xi5E4FIrRINsHUym/+5XBZUiRnW4ZZxgT7P6wIWQJwztJos3GOjcxvXZl8/d6Y mKLIz6TVw56d+S1tEyNKV8POPe522Ogwj2NY2eAMLj6x3MLka3ISxHXoDSJb8X98D8ps /xFwK8hS2vQB3uDP1wSJORXyWzMyTGUBvojl6CfRvt+EwbBzNTZ0fD8cHYfiYBF6EA2Q kvFg== X-Gm-Message-State: AOAM530bL2BC31eWTyL42Ael1r4eXNK4Co1QGZZE0VOX3/WBMHiFMu7Q tmrxqkfeiJtGlgH5p26vrtQ= X-Received: by 2002:a05:6402:31e6:: with SMTP id dy6mr21666585edb.36.1627937950208; Mon, 02 Aug 2021 13:59:10 -0700 (PDT) Received: from skbuf ([188.25.144.60]) by smtp.gmail.com with ESMTPSA id w6sm6881617edq.58.2021.08.02.13.59.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Aug 2021 13:59:09 -0700 (PDT) Date: Mon, 2 Aug 2021 23:59:08 +0300 From: Vladimir Oltean To: DENG Qingfang Cc: Sean Wang , Landen Chao , Andrew Lunn , Vivien Didelot , Florian Fainelli , "David S. Miller" , Jakub Kicinski , Matthias Brugger , netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, Eric Woudstra , =?utf-8?B?UmVuw6k=?= van Dorst , Frank Wunderlich Subject: Re: [RFC net-next v2 4/4] Revert "mt7530 mt7530_fdb_write only set ivl bit vid larger than 1" Message-ID: <20210802205908.queaqshisqk24pkf@skbuf> References: <20210731191023.1329446-1-dqfext@gmail.com> <20210731191023.1329446-5-dqfext@gmail.com> <20210802134409.dro5zjp5ymocpglf@skbuf> <20210802154838.1817958-1-dqfext@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210802154838.1817958-1-dqfext@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 02, 2021 at 11:48:38PM +0800, DENG Qingfang wrote: > On Mon, Aug 02, 2021 at 04:44:09PM +0300, Vladimir Oltean wrote: > > Would you mind explaining what made VID 1 special in Eric's patch in the > > first place? > > The default value of all ports' PVID is 1, which is copied into the FDB > entry, even if the ports are VLAN unaware. So running `bridge fdb show` > will show entries like `dev sw0p0 vlan 1 self` even on a VLAN-unaware > bridge. > > Eric probably thought VID 1 is the FDB of all VLAN-unaware bridges, but > that is not true. And his patch probably cause a new issue that FDB is > inaccessible in a VLAN-**aware** bridge with PVID 1. > > This series sets PVID to 0 on VLAN-unaware ports, so `bridge fdb show` > will no longer print `vlan 1` on VLAN-unaware bridges, and we don't > need special case in port_fdb_{add,del} for assisted learning. All things seriously worth mentioning in the commit message.