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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 D865EC433E2 for ; Fri, 28 Aug 2020 18:19:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C2C0A2098B for ; Fri, 28 Aug 2020 18:19:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727084AbgH1STd (ORCPT ); Fri, 28 Aug 2020 14:19:33 -0400 Received: from correo.us.es ([193.147.175.20]:40486 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726794AbgH1STc (ORCPT ); Fri, 28 Aug 2020 14:19:32 -0400 Received: from antivirus1-rhel7.int (unknown [192.168.2.11]) by mail.us.es (Postfix) with ESMTP id 360F12A2BB4 for ; Fri, 28 Aug 2020 20:19:31 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id 2838FDA730 for ; Fri, 28 Aug 2020 20:19:31 +0200 (CEST) Received: by antivirus1-rhel7.int (Postfix, from userid 99) id 16134DA78E; Fri, 28 Aug 2020 20:19:31 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id EFC0BDA730; Fri, 28 Aug 2020 20:19:28 +0200 (CEST) Received: from 192.168.1.97 (192.168.1.97) by antivirus1-rhel7.int (F-Secure/fsigk_smtp/550/antivirus1-rhel7.int); Fri, 28 Aug 2020 20:19:28 +0200 (CEST) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/antivirus1-rhel7.int) Received: from us.es (unknown [90.77.255.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: 1984lsi) by entrada.int (Postfix) with ESMTPSA id CB44942EF4E1; Fri, 28 Aug 2020 20:19:28 +0200 (CEST) Date: Fri, 28 Aug 2020 20:19:28 +0200 X-SMTPAUTHUS: auth mail.us.es From: Pablo Neira Ayuso To: Tong Zhang Cc: kadlec@netfilter.org, fw@strlen.de, davem@davemloft.net, kuba@kernel.org, netfilter-devel@vger.kernel.org, coreteam@netfilter.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] netfilter: nf_conntrack_sip: fix parsing error Message-ID: <20200828181928.GA14349@salvia> References: <20200815165030.5849-1-ztong0001@gmail.com> <20200828180742.GA20488@salvia> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Aug 28, 2020 at 02:14:48PM -0400, Tong Zhang wrote: > Hi Pablo, > I'm not an expert in this networking stuff. > But from my point of view there's no point in checking if this > condition is always true. Understood. > There's also no need of returning anything from the > ct_sip_parse_numerical_param() > if they are all being ignored like this. Then probably update this code to ignore the return value?