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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 58EDDC0044D for ; Wed, 11 Mar 2020 21:44:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B3710206B1 for ; Wed, 11 Mar 2020 21:44:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583963060; bh=klG8p9B6ZvM74J5caaf1Lv5IpHvKQhcAtgTj5EJ0ie8=; h=Date:From:To:Cc:Subject:In-Reply-To:References:List-ID:From; b=IOJCNmAisYkaxrVIzRxRSKmRHH9HmcHL4g4dn9Tp2PJ/r7mSPKk277VqScxzQDe1o qu6uipwgoG4tICucnOOFI55e9Q/GmWmqTR54wmTgPv6bRhfiLeQdk3TySR6rEJdQf0 aNeOHkppDaiGrbQlQNIPHiKe4/UqXtZM9ltc1BxQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729499AbgCKVoT (ORCPT ); Wed, 11 Mar 2020 17:44:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:38240 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729102AbgCKVoT (ORCPT ); Wed, 11 Mar 2020 17:44:19 -0400 Received: from kicinski-fedora-PC1C0HJN (unknown [163.114.132.128]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C0291206B1; Wed, 11 Mar 2020 21:44:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1583963059; bh=klG8p9B6ZvM74J5caaf1Lv5IpHvKQhcAtgTj5EJ0ie8=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=klFByTvwSzsJPRoqakQb4v+z6I6hZZ3lus+4PSkpSSs3EjSfK/XoSCxtN5lktyfmu vaHvPdF51xEwuTngJ8TeQQfxMnDvOY3k4/vC5if3uLyrxfNznbETzC+PD0aHQaRCvx l/7e0t1jQMnHBHfdKBo1L+GrYuDQwSVtFWvxKSUQ= Date: Wed, 11 Mar 2020 14:44:16 -0700 From: Jakub Kicinski To: Takashi Iwai Cc: netdev@vger.kernel.org, "David S . Miller" , oss-drivers@netronome.com Subject: Re: [PATCH 4/7] nfp: Use scnprintf() for avoiding potential buffer overflow Message-ID: <20200311144416.624c979c@kicinski-fedora-PC1C0HJN> In-Reply-To: <20200311083745.17328-5-tiwai@suse.de> References: <20200311083745.17328-1-tiwai@suse.de> <20200311083745.17328-5-tiwai@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Wed, 11 Mar 2020 09:37:42 +0100 Takashi Iwai wrote: > @@ -680,7 +680,7 @@ static int enable_bars(struct nfp6000_pcie *nfp, u16 interface) > bar->iomem = ioremap(nfp_bar_resource_start(bar), > nfp_bar_resource_len(bar)); > if (bar->iomem) { > - msg += snprintf(msg, end - msg, > + msg += scnprintf(msg, end - msg, > "0.%d: Explicit%d, ", 4 + i, i); Thanks for the patches! One nit pick - please adjust the continuation lines so it starts on the column after the opening bracket (other patches have the same problem). You can try running scripts/checkpatch --strict on your patches, it should catch these.