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[23.128.96.18]) by mx.google.com with ESMTP id o13si8985889ejd.523.2020.06.15.09.32.02; Mon, 15 Jun 2020 09:32:26 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@web.de header.s=dbaedf251592 header.b=TnauHkUi; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731048AbgFOQ2G (ORCPT + 99 others); Mon, 15 Jun 2020 12:28:06 -0400 Received: from mout.web.de ([212.227.17.11]:55497 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730552AbgFOQ2F (ORCPT ); Mon, 15 Jun 2020 12:28:05 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1592238473; bh=e/lJOtaL+2N+4pjgb8r5HbCYBQk8FFSd/yF+vwzzG2s=; h=X-UI-Sender-Class:Subject:To:Cc:References:From:Date:In-Reply-To; b=TnauHkUiMJStPu6u8jMFIZfrDg1p6Xn3j4hPXt5cA0AkLnNoQP0IvYQjYHkI55t0i 9IhQQQSG8kfaCrDWK5JJDL74eYKob6GzZRYV8aBAByyCOTKL5iEZ2Sr9LrbvLx41ii dmUobb7dJi//osL1Pl11qy4FjXL/tOiF1kiwt8N4= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([78.49.107.236]) by smtp.web.de (mrweb103 [213.165.67.124]) with ESMTPSA (Nemesis) id 0LoYb8-1jHbxD1UD4-00gXy3; Mon, 15 Jun 2020 18:27:53 +0200 Subject: Re: coccinelle: api: add device_attr_show script To: Julia Lawall , Denis Efremov , Coccinelle Cc: Gilles Muller , Masahiro Yamada , Michal Marek , Nicolas Palix , kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org References: <1f028ee6-b014-c240-21d8-0c1950334fe6@web.de> From: Markus Elfring 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: <6ce5346f-127d-e2fd-c703-9adf21060e30@web.de> Date: Mon, 15 Jun 2020 18:27:50 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:bZzrFuVdGUgLdZzUXBBG0c9thtgiUwj8WaN6Q5o5jIrqNCip1Be dG1XHK3hC4sWWyK45HksQ3tuQ1TmIoB64NLLm3y5aMn/3xpX7iz3WpSHyaNA+7RMVZB6EGg JCPyPhApFHqFWxIwyVl78r1WZFaq0wo2Yetz3bxs7BxZ8NFiM5dAsRVd66gbqBvJz+95Jrn +jh9PELkddakMgCnV0jBg== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:il27v5Vtuc4=:4iYvsLpOR3sdm+6VeKsqlk p+siBA4y7tA9Jr9DA1fPcX7KX3iAclijagf2ZBOCvJQasSqIC8q3Um4iUsq+wLAkJZAly3EVv ZIS+mt3v0IzQr8JnJpj8WM+QrhG48I7FN4TNKWAAKESN4niOLKswRZrKWUAwxCZv2o6qctgur g4GId1sYmJIXA4SEEpwruiCa0a2DphSM52c5jAImKw248tP08CiL3y4rei9Si1VE9wEE/rsbL NvEwcebypEucRJSulpHTQlE3T/w2GVXrTX6+0obYWDMYSHHnm1t+gFpIIgPbG6GzMBX46s9s1 S00AepUrrwVmyvBYc0DMYW8UAWPaHtQV7cPzYA2ElMGCzILwEOdYbeILXhzuIffnrD1wQREdw 4XubRG6BkLPVziGUeX/JipQZTRXO2w89DCO80T9Jz7O30S+ILRZVQDYnwAfMn3kqxuWZlJyFE Gx35/cV7hiOr6yDAU0hYHYl8b7MCMTjn0ziPvpczJ/yj+zz9Mo84xIOciVQi6j03q8c+G9boN TPI0V/hA7ILrpAzWrhK9j/gcVjKx8rYvVADKxhrh01R92/tfSxH5y3RZ/eYiPcE9iW/QYctfW 6axMYW19wMKA1itl3BvMfU85gdlrPkFQ+SykfM8D6jxvBU2S+scya5jVqi7VJRaWFqJhA0vfw a0uIPi2AGuC9C7qE1Jb9iYu3Slbo3KZujEFJoPyefTqpIPYBPBhDYdjZ1sjE4C43wcGNI5nDY twpYtDHL30Ij0qnyJhNyKlx2C9CRiNgCETMY3s4Szt5trRf2anu6JKhmKJcs2BkI1PoCbtLMh 2/EIosAccRpwuZBpgmAW93Lo8YvH63W7a0vRZpVfZwFUeVEuvN7n/Iv8zrKO1WbhMO9ZlysMd /894emfoVyXGUqMG4jF9dyIz0fur1znxnfziNyU9JOWmQJIgqzLYPvWEWEPxzjQ223er87Ne5 r9ZU5NBLuHN4tgfzkh43G+Pmh+tYH6nBBkiKgRwx4x357GKsaHquot9RDB8Fx8Z/8olCHkMm9 BLGvo0jBE10wd2uIOzeEW7n4gyXN5z7jfmL4C+7JBNI3zuIaS7hBLn4n3T29LQBXJ7eMXivF4 MDimnHN18QmQhGV2aIY0Vz5booNFDDt4xscSWeACc84gpCZhgrNbaTqKznoRq2vnZkhkEukzR svJoD1hY4yB5XiAzHnVImV94IMOGfGPaO9g8sIcnXlmva71njT+Thr8tcojZpO92V2rNcNajm 6L4dnC7Q2JSONEmdL Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >> +virtual report, org, context, patch >> >> Is such a SmPL code variant more succinct? > > This doens't matter. Can less duplicate code be a bit nicer? >>> +ssize_t show(struct device *dev, struct device_attribute *attr, char = *buf) >>> +{ >>> + <... >>> +* return snprintf@p(...); >>> + ...> >>> +} >> >> I suggest to reconsider the selection of the SmPL nest construct. >> https://github.com/coccinelle/coccinelle/blob/e06b9156dfa02a28cf3cbf091= 3a10513f3d163ab/docs/manual/cocci_syntax.tex#L783 >> >> Can the construct =E2=80=9C<+... =E2=80=A6 ...+>=E2=80=9D become releva= nt here? > > <... ...> is fine if the only thing that will be used afterwards is what > is inside the <... ...> I propose once more to distinguish better if the shown return statement may be really treated as optional for such a source code search approach (or not). Regards, Markus