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[209.132.180.67]) by mx.google.com with ESMTP id l5si6095214pgq.79.2019.03.12.08.44.13; Tue, 12 Mar 2019 08:44:29 -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; 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 S1726514AbfCLPma (ORCPT + 99 others); Tue, 12 Mar 2019 11:42:30 -0400 Received: from mout.kundenserver.de ([212.227.126.135]:45697 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726174AbfCLPm3 (ORCPT ); Tue, 12 Mar 2019 11:42:29 -0400 Received: from [192.168.1.110] ([77.4.190.91]) by mrelayeu.kundenserver.de (mreue011 [212.227.15.167]) with ESMTPSA (Nemesis) id 1MvKGv-1gleWf3BZp-00rL9O; Tue, 12 Mar 2019 16:42:08 +0100 Subject: Re: [PATCH 38/42] drivers: gpio: vr41xx: use devm_platform_ioremap_resource() To: Thierry Reding , "Enrico Weigelt, metux IT consult" Cc: linux-kernel@vger.kernel.org, linus.walleij@linaro.org, bgolaszewski@baylibre.com, andrew@aj.id.au, f.fainelli@gmail.com, sbranden@broadcom.com, bcm-kernel-feedback-list@broadcom.com, hoan@os.amperecomputing.com, orsonzhai@gmail.com, baolin.wang@linaro.org, zhang.lyra@gmail.com, keguang.zhang@gmail.com, vz@mleia.com, matthias.bgg@gmail.com, grygorii.strashko@ti.com, ssantosh@kernel.org, khilman@kernel.org, robert.jarzmik@free.fr, yamada.masahiro@socionext.com, jun.nie@linaro.org, shawnguo@kernel.org, linux-gpio@vger.kernel.org, linux-mips@vger.kernel.org, linux-pwm@vger.kernel.org, linux-omap@vger.kernel.org, linux-tegra@vger.kernel.org References: <1552330521-4276-1-git-send-email-info@metux.net> <1552330521-4276-38-git-send-email-info@metux.net> <20190312113732.GG31026@ulmo> From: "Enrico Weigelt, metux IT consult" Organization: metux IT consult Message-ID: Date: Tue, 12 Mar 2019 16:42:06 +0100 User-Agent: Mozilla/5.0 (X11; Linux i686 on x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <20190312113732.GG31026@ulmo> Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:fEymrQE84X8YA4VKIn7db4UHJeguHMCEeiDadNUHJItc4Cyf4xS DPVJ6hS+rZ/+ievdjt6JfA6pIi71QiNcE7BA6YaXwa3m4svvnCjWjIzPQxcm+CP84hyj5qA MsJGBFzxD7fqIuxkvRxuTxeH76Wm8ckXk2e79f1xcV8P4AZAvng6BPIkwa1EurRK4ANnN68 nz/3orX7Qk4FIzVVz89Zg== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V03:K0:DyStniLx2nQ=:CrU5Ea/kakURxVSPWEtxmL YSiYbA49+D53a+W4GWP+4fGBmDjLKomYamau2nwrCER/QhFJipUPUBvT9qRnCwfcRyobl8Suk fmnf9NJTuKD1Nn5M3aoR9dV9c+27Ida4vg0/qKGizBEP5ml2Qz7YXx6lAEAf37yUp7EoErqGk VxSP7MMarFaNvaacPoJB1ZlHz++rs3iiFFCbxMBWtERHWU+LyMg0eqXniA+w+IRGieLJfUyUA zkVHOILynO1M0n3pVOjrf12STYvdKfCAapo4IGfH9CD8IEBt3Ysh66FqxuAqmltggP3+z5Y4i fPKt/GG96twvXhyjZ1Hb8aqeVoGP67JHpgwbO5yhWAPkHEDOvc+rpUN1Di0Vhg9PuI/wSrRZt VPVr8kSjqfOCAew0wnSbxGk6fM/01fqZf3jita3zXonY4PRPEZ+OB5gSIKNzopltX1YC+RVtA 3MWgudvP/pmheSEY1u1BAFiw9GdcE3mbjnfiOFxJ1A2N9NJ2njWj2Ff0e4QZgctbZlBp6VB6j yq26Fwpr8dPoD0qrF0tTKpQzs5CNlnig2WBNxbtS2rWQ8L6Ud+p6wSHh19a66REeLwu6/lIIL EHURR8SXo6BcsnThw7+G2BBvUv+i9miHSljnpwtiQ3RILF+xqMyh6B01NpK6MofejtPGv31zz Yn6Y79n8Wzi2NA12Km089FUg7OaIeUPUdoIVZkMs3SKzZti9aBEdic2wncoHOFut2l3ZZ+IYw 0LYtNalhYWKxSuaXr/8WYe6yfUuDxDxBmFL9BqmdYPw1vlXIzmyc6TjvqyU= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12.03.19 12:37, Thierry Reding wrote: > The driver currently doesn't request the memory described in the > resource, so technically you're changing behaviour here and with your > change the driver could now fail if somebody else has already claimed > the memory. hmm, using w/o requesting/claiming - isn't that a bug ? --mtx -- Enrico Weigelt, metux IT consult Free software and Linux embedded engineering info@metux.net -- +49-151-27565287