Received: by 2002:a25:f815:0:0:0:0:0 with SMTP id u21csp3357856ybd; Fri, 28 Jun 2019 07:16:58 -0700 (PDT) X-Google-Smtp-Source: APXvYqy5MbRRODyxyh70nEHTOzlZx2p6e7ctztLwiN88/B3zJSEg1YFwrESiFN2dhLBieLPFATpY X-Received: by 2002:a63:6b07:: with SMTP id g7mr9881817pgc.325.1561731418668; Fri, 28 Jun 2019 07:16:58 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1561731418; cv=none; d=google.com; s=arc-20160816; b=EYvdvOUouAv/V/NaBHybX9Jn4Yh0VmMsTlqtmV/CNL094fyMhThwyTN1NHM/bfIhWC fbf5ebJlh+zXM6bAnEVW98H4fgu70iKFin1JltSbjU013iwf2hDBRyZ5S+MFvfDhXKLU TQBQON+g+F3ekNwzdv4mqz3EH0Q3L4xcT5itCo5i7Em285tY/dWMqd0SP4Nloo9a6pL8 Pu1dCZSNu8h80F7hRLG5iy8seQyyJDhxrqovOd9uhFgOYuluv2VeE6cfgjvb282BbKDv +haAwJyGAxJxQKJcxXah4QAxAFF1OsySrUr/kce4kGK39xZeE9ztTsny1S/2LddZxr9u EPyg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:autocrypt:openpgp:from:references:cc:to:subject :dkim-signature; bh=Lo61LJPGypaBHsL844/+M9njfcRhcaeFQQAVZcAUlwc=; b=IAHkC+FqKEiqUKU/j3NBMVRXTPvQJ31cpTOKlSVX4cQMQSr6/8vwxdFdzPlWtN7WOA xmNmedZXrR5lXbuJBJjo7+TzcZJxYfFvbyQU2OtdPxTFoldIimP76z35BiKdnbTSm5Z+ n+Jm7h6MaNtdB4jS1SPa6KH4Pj+FkziStPlWWUP/xNeyl3GtZ53HDfmB3muJIzinIcLu r1tTf4LD3/KbYUeCVPcOFNpLRaeP2g2Sw+v9vgFF0pcKNvJPhVOVpgPFE599SNklL29g mO6rL12QUsWvtGZK/JsLlK0jup00fD0ZQVQV3VE0O/XFdfh++GlS1oSK+hdXRS3mYf51 TTPA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b=goNqNhx4; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 207si2700920pfu.258.2019.06.28.07.16.40; Fri, 28 Jun 2019 07:16:58 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b=goNqNhx4; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726813AbfF1OQ2 (ORCPT + 99 others); Fri, 28 Jun 2019 10:16:28 -0400 Received: from mout.web.de ([212.227.17.12]:42359 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726616AbfF1OQ1 (ORCPT ); Fri, 28 Jun 2019 10:16:27 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1561731371; bh=EhlgD4OxUpSkqoFWG7/7Dq7I5UiCGhuvGXHoYj+a1Gg=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=goNqNhx49UgMRSN92Xeb2jyW+yTv2nUxqhP9G0ChNWb/I6nhEwnLzJqw/mV5WcL+T 5BeUzezljKRWZE/OEXU0PoQzmYR8ZPmVSKNGb0RbVUO2tIGQXSVk+Vbyq3tWMrOQDo 5FEVyClw5i+FXM+UlaQN5oMMYC9M9YfMwtYFcy/w= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([78.48.53.73]) by smtp.web.de (mrweb101 [213.165.67.124]) with ESMTPSA (Nemesis) id 0LvBV8-1ig5MG3ABe-010Hx6; Fri, 28 Jun 2019 16:16:10 +0200 Subject: Re: [v2] coccinelle: semantic code search for missing of_node_put To: Julia Lawall , cocci@systeme.lip6.fr Cc: Wen Yang , linux-kernel@vger.kernel.org, Yi Wang , Gilles Muller , Nicolas Palix , Michal Marek , Masahiro Yamada References: <1561690732-20694-1-git-send-email-wen.yang99@zte.com.cn> <904b9362-cd01-ffc9-600b-0c48848617a0@web.de> From: Markus Elfring Openpgp: preference=signencrypt Autocrypt: addr=Markus.Elfring@web.de; prefer-encrypt=mutual; keydata= mQINBFg2+xABEADBJW2hoUoFXVFWTeKbqqif8VjszdMkriilx90WB5c0ddWQX14h6w5bT/A8 +v43YoGpDNyhgA0w9CEhuwfZrE91GocMtjLO67TAc2i2nxMc/FJRDI0OemO4VJ9RwID6ltwt mpVJgXGKkNJ1ey+QOXouzlErVvE2fRh+KXXN1Q7fSmTJlAW9XJYHS3BDHb0uRpymRSX3O+E2 lA87C7R8qAigPDZi6Z7UmwIA83ZMKXQ5stA0lhPyYgQcM7fh7V4ZYhnR0I5/qkUoxKpqaYLp YHBczVP+Zx/zHOM0KQphOMbU7X3c1pmMruoe6ti9uZzqZSLsF+NKXFEPBS665tQr66HJvZvY GMDlntZFAZ6xQvCC1r3MGoxEC1tuEa24vPCC9RZ9wk2sY5Csbva0WwYv3WKRZZBv8eIhGMxs rcpeGShRFyZ/0BYO53wZAPV1pEhGLLxd8eLN/nEWjJE0ejakPC1H/mt5F+yQBJAzz9JzbToU 5jKLu0SugNI18MspJut8AiA1M44CIWrNHXvWsQ+nnBKHDHHYZu7MoXlOmB32ndsfPthR3GSv jN7YD4Ad724H8fhRijmC1+RpuSce7w2JLj5cYj4MlccmNb8YUxsE8brY2WkXQYS8Ivse39MX BE66MQN0r5DQ6oqgoJ4gHIVBUv/ZwgcmUNS5gQkNCFA0dWXznQARAQABtCZNYXJrdXMgRWxm cmluZyA8TWFya3VzLkVsZnJpbmdAd2ViLmRlPokCVAQTAQgAPhYhBHDP0hzibeXjwQ/ITuU9 Figxg9azBQJYNvsQAhsjBQkJZgGABQsJCAcCBhUICQoLAgQWAgMBAh4BAheAAAoJEOU9Figx g9azcyMP/iVihZkZ4VyH3/wlV3nRiXvSreqg+pGPI3c8J6DjP9zvz7QHN35zWM++1yNek7Ar OVXwuKBo18ASlYzZPTFJZwQQdkZSV+atwIzG3US50ZZ4p7VyUuDuQQVVqFlaf6qZOkwHSnk+ CeGxlDz1POSHY17VbJG2CzPuqMfgBtqIU1dODFLpFq4oIAwEOG6fxRa59qbsTLXxyw+PzRaR LIjVOit28raM83Efk07JKow8URb4u1n7k9RGAcnsM5/WMLRbDYjWTx0lJ2WO9zYwPgRykhn2 sOyJVXk9xVESGTwEPbTtfHM+4x0n0gC6GzfTMvwvZ9G6xoM0S4/+lgbaaa9t5tT/PrsvJiob kfqDrPbmSwr2G5mHnSM9M7B+w8odjmQFOwAjfcxoVIHxC4Cl/GAAKsX3KNKTspCHR0Yag78w i8duH/eEd4tB8twcqCi3aCgWoIrhjNS0myusmuA89kAWFFW5z26qNCOefovCx8drdMXQfMYv g5lRk821ZCNBosfRUvcMXoY6lTwHLIDrEfkJQtjxfdTlWQdwr0mM5ye7vd83AManSQwutgpI q+wE8CNY2VN9xAlE7OhcmWXlnAw3MJLW863SXdGlnkA3N+U4BoKQSIToGuXARQ14IMNvfeKX NphLPpUUnUNdfxAHu/S3tPTc/E/oePbHo794dnEm57LuuQINBFg2+xABEADZg/T+4o5qj4cw nd0G5pFy7ACxk28mSrLuva9tyzqPgRZ2bdPiwNXJUvBg1es2u81urekeUvGvnERB/TKekp25 4wU3I2lEhIXj5NVdLc6eU5czZQs4YEZbu1U5iqhhZmKhlLrhLlZv2whLOXRlLwi4jAzXIZAu 76mT813jbczl2dwxFxcT8XRzk9+dwzNTdOg75683uinMgskiiul+dzd6sumdOhRZR7YBT+xC wzfykOgBKnzfFscMwKR0iuHNB+VdEnZw80XGZi4N1ku81DHxmo2HG3icg7CwO1ih2jx8ik0r riIyMhJrTXgR1hF6kQnX7p2mXe6K0s8tQFK0ZZmYpZuGYYsV05OvU8yqrRVL/GYvy4Xgplm3 DuMuC7/A9/BfmxZVEPAS1gW6QQ8vSO4zf60zREKoSNYeiv+tURM2KOEj8tCMZN3k3sNASfoG fMvTvOjT0yzMbJsI1jwLwy5uA2JVdSLoWzBD8awZ2X/eCU9YDZeGuWmxzIHvkuMj8FfX8cK/ 2m437UA877eqmcgiEy/3B7XeHUipOL83gjfq4ETzVmxVswkVvZvR6j2blQVr+MhCZPq83Ota xNB7QptPxJuNRZ49gtT6uQkyGI+2daXqkj/Mot5tKxNKtM1Vbr/3b+AEMA7qLz7QjhgGJcie qp4b0gELjY1Oe9dBAXMiDwARAQABiQI8BBgBCAAmFiEEcM/SHOJt5ePBD8hO5T0WKDGD1rMF Alg2+xACGwwFCQlmAYAACgkQ5T0WKDGD1rOYSw/+P6fYSZjTJDAl9XNfXRjRRyJSfaw6N1pA Ahuu0MIa3djFRuFCrAHUaaFZf5V2iW5xhGnrhDwE1Ksf7tlstSne/G0a+Ef7vhUyeTn6U/0m +/BrsCsBUXhqeNuraGUtaleatQijXfuemUwgB+mE3B0SobE601XLo6MYIhPh8MG32MKO5kOY hB5jzyor7WoN3ETVNQoGgMzPVWIRElwpcXr+yGoTLAOpG7nkAUBBj9n9TPpSdt/npfok9ZfL /Q+ranrxb2Cy4tvOPxeVfR58XveX85ICrW9VHPVq9sJf/a24bMm6+qEg1V/G7u/AM3fM8U2m tdrTqOrfxklZ7beppGKzC1/WLrcr072vrdiN0icyOHQlfWmaPv0pUnW3AwtiMYngT96BevfA qlwaymjPTvH+cTXScnbydfOQW8220JQwykUe+sHRZfAF5TS2YCkQvsyf7vIpSqo/ttDk4+xc Z/wsLiWTgKlih2QYULvW61XU+mWsK8+ZlYUrRMpkauN4CJ5yTpvp+Orcz5KixHQmc5tbkLWf x0n1QFc1xxJhbzN+r9djSGGN/5IBDfUqSANC8cWzHpWaHmSuU3JSAMB/N+yQjIad2ztTckZY pwT6oxng29LzZspTYUEzMz3wK2jQHw+U66qBFk8whA7B2uAU1QdGyPgahLYSOa4XAEGb6wbI FEE= Message-ID: <223dfac0-deab-0525-fd5b-ccd2350fd5e2@web.de> Date: Fri, 28 Jun 2019 16:16:08 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:y53BM6cdr0iYY/gExgJ05K4r7XD9WgGNmrmhAUw0kUUbxPTOPng oocuNl1AL9rnpB4RcnJddIchPItUg2BWk5rz4qmVGGt/57oaEDdVCLwfcnFZ3gIcInfKIis KjLoDjZpX7VTwpROKOxLEHhYrq8N93kn4PJ6/rHYVC4lMRjytKfyw22FiR4NDSNeRGlQFZW mZUgsAtKHUzXjQ4P/EPfw== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:uJj/Q0Etm4E=:qeoodpNkCi/PKbSZTJ3IRn qkxovJR+RcXS6VeIZs3DroaPWsJUVwAdgW4arXlsPhdnD0dWpLfaQaIYoX9gDhyqUqPK5Ue3w cxkA6yhyJesW7W3xRqq2vlz/O4YVnFpaDzLp5VJhr46s0r/JGNufHgoT1u3tmUtbY7NbJaJ6p DlHRQBVJc+sG0b2sx0VFI0WzQYsP7fEbZ7sPSyCUgAP1R/U1AyMHQF7VSjl5gKXjal5hY9BYB hgYUz4yh/XM0iqV2Od31/iWpfGJ9ejrs+T1BlCg88vrSpqWr1K5xHJDFiJQWv7ROmDxYr5Psx Hrp1pQD+iutQQS30la5TW9JHhZDVYfinkSwguGCfezGbW/UNpcE2F2a1pSZwu0VwXMN3dqpzL C72YktyGRIweVLhgo0/twcoVKRwOAypFifXnV9lSJgXrvDxETKmROROFXKveZ87KPl/sZjLnU xl5gNarsWzDv5UyEgGbvlsCifFDgyJNMERFuUdBuJfDhdM7jRRgVOWjuvtBiEiYzeqwQEiLui KIbTmVfsrQS4kbJEfI44elLOXjJga5RxRMQwZ39g3ISyOx8oqTA8keRlYD4UTX62tl16tm+oz DtvyNxly0risArxhQcFMMUk28PW3CZhxTTUY3gbYEFDUzvzDw+GNnUwJ+aL4JGCt600O5aIqo ZA3LvFFxDkoh2/+El5UtRExWGPAkc8+j1l3GxEOxFILEUipKFqYCyUBCizy9/u9VrgV6D8om4 lfEjHLWMxoOGG+WnljREF76G5yVO9eCTtdvyxoR/zPUOCOKuhzFQVr7NZrDbYcLEq4blhZQM7 hYrTOEcMZXwNwJKgsBLq6qlvwxG1rgtZCPTztDGaz8MZ2eCTKZ8fF+Jom9pQPgTUNu8qhutlo 0/HTjVhREU92pfvk+sfJPBLbH1bIe+fEvc1m89fAtsdqyBJ+k2ENY7/YKRPhYDaVbAbatf8+0 4gLFn8L8sMufJcpJqsA/g5IKWG78pWrUxIBgOKgmla4nahUkaB3v2klkfaY7cpKaSgh9HUEt1 nHMhTs0LdJLBKSiwsRfh7FgnTqxRfJHCVC3hKHmtHncpUh4D4/TEoYEpT3nI1a4LBb/wDyFNI 7CJzVT41LiaKmoxOnFJchZSj/xJmlqHR/jD Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> +x =3D >> +(of_=E2=80=A6 >> +|of_=E2=80=A6 >> +)@p1(...); > > Did you actually test this? I doubt that a position metavariable can be > put on a ) of a disjunction. Would you ever like to support this possibility? >> +|return >> +(x >> +|of_fwnode_handle(x) >> +); > > The original code is much more readable. We have got different views around such specification variants. > The internal representation will be the same. I imagine that the Coccinelle software might evolve into additional direct= ions. Regards, Markus