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 B094EC433FF for ; Tue, 6 Aug 2019 12:45:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6D2CA20B1F for ; Tue, 6 Aug 2019 12:45:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=web.de header.i=@web.de header.b="KnHztrJc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731800AbfHFMpt (ORCPT ); Tue, 6 Aug 2019 08:45:49 -0400 Received: from mout.web.de ([212.227.17.12]:51911 "EHLO mout.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729506AbfHFMps (ORCPT ); Tue, 6 Aug 2019 08:45:48 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=web.de; s=dbaedf251592; t=1565095531; bh=En3myy3jkFERsP4r44CEwITztWYu2JZZ8iyTuvFxb74=; h=X-UI-Sender-Class:To:Cc:References:Subject:From:Date:In-Reply-To; b=KnHztrJc+of+VwlpozVhMqeU3ayf3x3BfxwyuKBZo3rkOawL/Z1UfuCtpfUcmd3Q+ jxZHKeHBG3tCSgmCtN1xe1maJwvs7TJEdrnf2HISjJpRg/dT4BUJKStqJvs4HLvDII LqaI5Dxv2gIs4JEL98kN1xWCgI0s8CGI5SBFR6ZM= X-UI-Sender-Class: c548c8c5-30a9-4db5-a2e7-cb6cb037b8f9 Received: from [192.168.1.2] ([93.135.79.190]) by smtp.web.de (mrweb103 [213.165.67.124]) with ESMTPSA (Nemesis) id 0LqDYi-1iYhNj1syu-00dqU6; Tue, 06 Aug 2019 14:45:31 +0200 To: "Gustavo A. R. Silva" , Alasdair Kergon , Mike Snitzer , dm-devel@redhat.com Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org, Colin Ian King References: <20190806001825.GA6854@embeddedor> Subject: Re: [PATCH] dm raid1: Use struct_size() in kzalloc() 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: Date: Tue, 6 Aug 2019 14:45:30 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190806001825.GA6854@embeddedor> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:P8kEC5Oc6PiE1IF1//D6hq/tvexOWvxlpgL9QzgkwaiJAVHYbeC nAzAXFHPgxO3UzIphMjGkNgyWaC/YbIn+hOqAIBZa3GMaTjW2XamC57Pz3YK9XDQmQseB7M XIkgwR3siUwwDZKysClQADhtJns8p5aEwHt0qwSaGBbedBfO/l2iFOdDAHSUsJxIoh9rfX9 hJrieyf9PETIVjuQ+XbTg== X-UI-Out-Filterresults: notjunk:1;V03:K0:6azNcsqMCGM=:DDsmc5lMl3x6CyiCZbAiS2 3bWUJ6OHaQTinAdJ842Fl3FuspmsMHY64asXfcqIaQ9ebUwlUwI8RBuz8QkYl0HSjAJZvFr9a SMWwa9aXY1R46KuX+9j/BLva86Aeq69sAvS+fo2ZXCaX/ObQtvYv4rWk2VhOaUJxwP5e6jMFW UoNt2zGhukgGPGDlbiHFZ2qZYllouLSJ63UBPcHBTZhjVj1KrMzyB3i7QhZY+8e2nYaGFiyuv nF1Tll8XFGvU1cHzyLI3gicI4mjWLGR0SZIeI6YHas727Un1A7DdgFyo37xtEPRbCuscyD7JC a39doD37CnRVcWpxljmfSLgUakXI9NVlZi6Gt7CmIaV9748VBW1EwDnY4In+no0toBnOnXFF1 Em+PUE7TcrBEDM7yDozUMEJP7Phltr31x55Sk/vsq9py5G158IieYhCMzYhHCWXFoX/wGMdzV c8+B1eDgGRnJq8JeDs16ylIHCuTi8hbjrra+TUILWzWvBovqWxf1yhpHlPXI0Llh5Lok5LD5v BSbbjAzwmfy0QaJ0abDXoK2WIIRMUqEzAARzWIZxLP6tkMsNDp2TCADxSP48J7FsK2h55Ss7k 7TUqNnLjYA1oLOTZxriSO/ZQdBFwxc8pFuICayPAX7hBU7vKsz1GrLTUtCOz1AO/P156u/woq DnPGlg2hKOTn17/9iCOYM82rQzv7Wt1/LvajQTtC7hvI7oND0OdmSdd4l9UfZCMpDSm99FKyT tWu3+czVS4zTi6nbmwKESc27FRXp0SKPQHhaSfEBdFP5rSj7e8Tt9XdM6lyovP9Fx9kgQRZh1 8S7jIi8KNAfeVzoZtCk/WtxcNoWwaNzKGjaafrrc0Hc5Q1N+nXx4R1IdwFnz+E4ykRJnsh8YG INht12jGXcsvqFWWXbBWx5ubAIzUs+SY96IhCxoY+nB9o7kFIeoKStPzQDI05rpWSX+CviyQe CAPM6LuyJoDyUgheUslQdLcHT4nWZovF3DNXLjisYxBUaDEPzu1nWR7x+UNYQy7FqkuHdfHeo Z48FyFyOGwMtI84aDGJw2MshoceQwTIJmG+9GlJ2hlKCpELU/V77eKsQvIdUmoVnuB01ECeKm aVHN3VXpWB39Iy+o5oMv6sNs8ThhFVtfpnluWbbARU2dmrI60cZjXeM2Px2Z4VwToRtCpl0Fp Dd7dY= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > +++ b/drivers/md/dm-raid1.c > @@ -878,12 +878,9 @@ static struct mirror_set *alloc_context(unsigned in= t nr_mirrors, > struct dm_target *ti, > struct dm_dirty_log *dl) > { > - size_t len; > struct mirror_set *ms =3D NULL; =E2=80=A6 How do you think about to replace the initialisation =E2=80=9CNULL=E2=80= =9D by the desired function call? Regards, Markus