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[2620:137:e000::1:20]) by mx.google.com with ESMTP id i10-20020a05640200ca00b005047008e612si3609009edu.96.2023.04.11.18.53.56; Tue, 11 Apr 2023 18:55:00 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=MJJOzLay; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229678AbjDLBt5 (ORCPT + 99 others); Tue, 11 Apr 2023 21:49:57 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52788 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229515AbjDLBtz (ORCPT ); Tue, 11 Apr 2023 21:49:55 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 21C42213A; Tue, 11 Apr 2023 18:49:55 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id B236462695; Wed, 12 Apr 2023 01:49:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 96C00C433D2; Wed, 12 Apr 2023 01:49:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1681264194; bh=aKG+1zNkh2FK/EvUu9fFjD33/8YFSQKUso17chrT7tM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=MJJOzLaykGHYDe6d3WiKIwp66YlU3rDUomUj46ePjS+In4YTtE8XBrSzn7Xdg7jaq 22CL5P9d8jx3ZDMk5Gd8II+kPUWnmG8cI/fVQzcprfpghMKvI/dDHRK3qC71nQSlKV wowvNJemYSPgXEqScRHsUZh/c7i/xhgKVlEN+WmoR+xtM7lTcwDvKaoMvr4AmNrWt3 j3y+ewmrxwyJU5w8/YHWSbznXvc1e+/lpSfQG4WwgPeKeH9Aqs2B1I3H7emhzX2De8 UPvPpr04kQyBHqo+EOtS/mm85gU7NNuMVRtEZJq4lt+yhQSeyU5TnskThUmaBtq+o9 rpOKS6ogeLaKw== Date: Tue, 11 Apr 2023 18:49:52 -0700 From: Jakub Kicinski To: xu xin Cc: bridge@lists.linux-foundation.org, davem@davemloft.net, edumazet@google.com, jiang.xuexin@zte.com.cn, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, roopa@nvidia.com, yang.yang29@zte.com.cn, zhang.yunkai@zte.com.cn, xu.xin16@zte.com.cn, razor@blackwall.org Subject: Re: [PATCH net-next] net/bridge: add drop reasons for bridge forwarding Message-ID: <20230411184952.1657b8c9@kernel.org> In-Reply-To: <20230412013310.174561-1-xu.xin16@zte.com.cn> References: <20230407200319.72fd763f@kernel.org> <20230412013310.174561-1-xu.xin16@zte.com.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 12 Apr 2023 09:33:10 +0800 xu xin wrote: > >You can return the reason from this function. That's the whole point of > >SKB_NOT_DROPPED_YET existing and being equal to 0. > > If returning the reasons, then the funtion will have to be renamed because > 'should_deliever()' is expected to return a non-zero value when it's ok to > deliever. I don't want to change the name here, and it's better to keep its > name and use the pointer to store the reasons. Sure. You have to touch all callers, anyway, you can as well adjust the name.