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=-2.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 A5CFCC433FF for ; Mon, 12 Aug 2019 10:01:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 704352085A for ; Mon, 12 Aug 2019 10:01:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=web.de header.i=@web.de header.b="T5n47MKc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727617AbfHLKBf (ORCPT ); Mon, 12 Aug 2019 06:01:35 -0400 Received: from mout.web.de ([212.227.15.3]:40477 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727466AbfHLKBe (ORCPT ); Mon, 12 Aug 2019 06:01:34 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1565604060; bh=cIbV8TNZ6P1Oot98inSuptsBLdkK9s4ARR+DiDfLzpQ=; h=X-UI-Sender-Class:To:Cc:References:Subject:From:Date:In-Reply-To; b=T5n47MKcmeq89PMqZ1noAOLndZTyEhCWlxz+0oJRsK4SDAq998e5jF/AVhQAPe5l5 b/5Jl8gtiSIhJz0OIyZr1/gm9wormy9b1+LkmzbRVwJcHFAlsT4TaIKa4YPylzA9j8 3P0h0ZiSBQACu/6rdgl3m+ac1M/cB1tNQNOipExo= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([93.133.165.124]) by smtp.web.de (mrweb004 [213.165.67.108]) with ESMTPSA (Nemesis) id 0MXBh7-1hklJp1XjJ-00WCb8; Mon, 12 Aug 2019 12:01:00 +0200 To: Alexander Popov , Jann Horn , Julia Lawall , kernel-janitors@vger.kernel.org, cocci@systeme.lip6.fr Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, kernel-hardening@lists.openwall.com, Al Viro , Denis Efremov , Gilles Muller , Jens Axboe , Jiri Kosina , Michal Marek , Mukesh Ojha , Nicolas Palix References: <3ee24295-6d63-6da9-774f-f1a599418685@linux.com> Subject: Re: floppy: fix usercopy direction From: Markus Elfring Openpgp: preference=signencrypt Autocrypt: addr=Markus.Elfring@web.de; 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Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <3ee24295-6d63-6da9-774f-f1a599418685@linux.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:Lq+S+0zUpkv9IKiOBh3L967rFcylnMgd7xdu1zCinFBfeZODjJm 4NCn3xwdhtvkPmBbetWnwUSK+7Z3qGtDz8uzgTvBXrWshMJRJ68JJuwzn8y8qZ1bRFt/lHA cK2zo6skIS4QAMDvHEa+NY45ePPvkz+kn+tNNBAdafp4MwSPdKzfB7u3ynVauhFp0p1345G /7IS0cfK93Uj3EntCMH2w== X-UI-Out-Filterresults: notjunk:1;V03:K0:gbMIUPXj9qA=:bvqc9ICAFUMD2Vu28lkK0H 3qiZrzd2NpQleJ16WGBSlnPe0haEa+PAPWvM7DxVLefN1f95omJtZ+tuygh+tmJcr9gdnXTmq F5tjDOHYkhCg962Dc/8iOrwvfAkKmR3m+LXnjA82fEcqUFHHH8GRVq0b0Xxd/5VS+XjISYWaL HjupPST4dcFxUGVw0WRwEbVHlRKrVm703lAQrryCNwkgXGbb9iyWH94V6TKs9PpfRHkeixmNl ZH2shgphJJRxethZpOFVHycBZ+U0v2ENVzT08iJATuyofSdRnZ4F1X14V65Rs0hrFqnj9T7ez B2EvfDdeEPi9AaqCczjeoBxxPbDUGqF7yQQAkg3Ch3CPlHtc3txh2SwGc5KH1eHFqKXgGDIbo qtOLdOHpJchY/gqei5fv9BIU9HvOvoeEm7YX/EPLQrOa4tlwE1fZiFQyo7lmMhbZ8bxhlIxy2 EbzJH7//X8tioPbgErUDFpd7Dq0kmXVaEwNBujNFiVjBdDuijnaMCqCDPCjfXqSiAsj/jbTTV YbOWiJ7NLmPmx2eomdPBWN7FX6vdD7hB4T1toSAoFYdvAZ2T7vtqn9IF6iB/or2YA1x0OZXxc 0JxUa5eFBloHm9yFNIMp814en+NCIkqpOAzfFbc69X436pZfraK8v9wIPxa7uuMxD2oyHnjUK pEPD9sBu9U/WUR1ccnA87tLxgbHwTjXOL26Vd9qSMBjQDDvaLlqiHUEDv+g/271sPtDbafjU/ 2fMCqwwwTCK0SluevjvIsvN5b0mQrjG4lSbmGHy+WJubkgrZ84zv2594eQLN/tM+26spqxdq3 WERKDLVBLOc8DZKsZkL6Jzk/mJ5DVIhcaxU+H6i0RWgIQAJ2LdEcqD/2Ft7ua/DMq1qVL4qV4 SKvOWc1C3oUrrOsFnjoZe45qfuX8OiW2ZI+j3qzpB32GMGcy55/zQP83+A/U2okFYqgUwbJ9X p3qL1ZdDN9L6cb1QxX4SoSq7HJsDDO3m5rz57PrYsvtk+vNDC4aBaNo7kvV5BYNeTjDBDphwt 6KeAwpNx5+ECkC1pt9OC+f9TbVG+wt8j+4cO5xzkA9JuRzIDDNq7QSfCbrsmmEdSxLVVuRn3E LPLAl/qUAQUVYpcbU6gzrfmMAtCrfgChCe2MDbpZ85UGYZzehkcg4t83U2hkiWhtoZFMz/fMj sBqmE= Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org > =E2=80=A6, I see `exists` allows to drop `<+ +>`, right? I would interpret the combination of such SmPL specifications in a differe= nt way. > It turned out that sparse already can find these bugs. This is generally nice, isn't it? > Is this rule useful anyway? I hope so. Can scripts for the semantic patch language help any more? > If so, I can prepare a patch. Would you like to take corresponding adjustments into account? Regards, Markus