From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 284A8C432BE for ; Fri, 27 Aug 2021 10:21:06 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EC43360E99 for ; Fri, 27 Aug 2021 10:21:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org EC43360E99 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=WQNnvO5UILSChrgGGNQyNYtxFf05M8YWbmx2PD3XVyA=; b=XQETxy1sFMfzqJ B17EhI1yEwcqhDeu+ZL3sejv7nmnSk/hRRcQ5vrfO/12A7dQkJ7RQrx0TQzYsaVPQKZPcSLXnOQMo a3dW8OokyBzqIocRU4E83kuhdwSSsmNfWVJehH4T6meV9M9NiEQygwOS1H5kiwNr5VkcuynQDxWS7 ok0B2kRoGMMXEwARFwq7XujqG21ZFPQiTRSYlyyAvu67lp/bioDY+x/nTok9jPo04osGmlLpfOEcL hc2u/cGrvrGjd3B+RGV8vZ4q6WY8kuq7UArxyNEwNlOFk7TH3lGLyvu4DoDT3vTlzadimIzSEtpHd KlxRnuEnClh/EHXkecZQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mJYyi-00CFpT-4A; Fri, 27 Aug 2021 10:20:52 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mJYxL-00CF7o-Mz; Fri, 27 Aug 2021 10:19:31 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2510060F4F; Fri, 27 Aug 2021 10:19:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1630059567; bh=EOO6pKRRm3/g0M0RTzHPyA5sIKLS/eIq5VJThmOrCEw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=tSWxtIl/NPkTQ+WN8KhkK2/CGY68e9SPzcz96GYq8DQDLZj+lR6JyJOm5lERl4GRf jAfeQbjuo/OQ/PZWP8pPTuxkcUqcArquIRHzcRRhB95mtj9pphex7YpebmAVaIvN4Z NQVgSZvHUzrTPuPHX/PExgvqfsFYW+73WX1C4eSE= Date: Fri, 27 Aug 2021 12:19:23 +0200 From: Greg KH To: DENG Qingfang Cc: Sasha Levin , stable@vger.kernel.org, Sean Wang , Andrew Lunn , Vivien Didelot , Florian Fainelli , "David S. Miller" , Matthias Brugger , "open list:MEDIATEK SWITCH DRIVER" , open list , "moderated list:ARM/Mediatek SoC support" , "moderated list:ARM/Mediatek SoC support" Subject: Re: [PATCH 4.19.y] net: dsa: mt7530: disable learning on standalone ports Message-ID: References: <20210824055509.1316124-1-dqfext@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210827_031927_816738_FAE8413B X-CRM114-Status: GOOD ( 15.11 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org On Tue, Aug 24, 2021 at 11:57:53PM +0800, DENG Qingfang wrote: > Hi Sasha, > > On Tue, Aug 24, 2021 at 11:29 PM Sasha Levin wrote: > > What's the reasoning behind: > > > > 1. Backporting this patch? > > Standalone ports should have address learning disabled, according to > the documentation: > https://www.kernel.org/doc/html/v5.14-rc7/networking/dsa/dsa.html#bridge-layer > dsa_switch_ops on 5.10 or earlier does not have .port_bridge_flags > function so it has to be done differently. > > I've identified an issue related to this. What issue is that? Where was it reported? > > 2. A partial backport of this patch? > > The other part does not actually fix anything. Then why is it not ok to just take the whole thing? When backporting not-identical-patches, something almost always goes wrong, so we prefer to take the original commit when ever possible. thanks, greg k-h _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek