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Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by desiato.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1w7xMB-00000000k1F-2KfR for linux-arm-kernel@lists.infradead.org; Wed, 01 Apr 2026 15:19:49 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id C6AF440BA6; Wed, 1 Apr 2026 15:19:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2981DC4CEF7; Wed, 1 Apr 2026 15:19:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775056785; bh=0n6QUhLSn4u6mJHrfZLnICw0951wBVsr/UfSncMxpKc=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=WOSf+c8TzlKbkZRCaxSvWp3BySeo8yn8pugDmRsNTvlcrHkZA81VAJyjkdePm1g/4 uq0yK9BjapEXOUw5rUqGLO6PPJ7iMgAtJT5hFIaGFiZr3thTP74k16hZtQJCpBHmbO PbPKlHzM30c44vc+hzJ4oV4m3KewNcaCdc/zVrQbS7ugaU6JJC2Ycp/61LIkgL7C8z JXBzHfp9jOXjLwYyiaLO/bw/HwhI8kc3G5gPxxyyXn9mBwTTBO01nR0LAELW08+PZ1 BLs0AfX2jiBWgjjnnCut1pfEgH5472SARXhbaJZ03+4TuebuH0963WCf4oQizGInpw cCkfnPORF4Njg== Message-ID: Date: Wed, 1 Apr 2026 17:19:38 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v20 01/10] power: reset: reboot-mode: Remove devres based allocations To: Shivendra Pratap , Lorenzo Pieralisi , Arnd Bergmann , Bjorn Andersson , Sebastian Reichel , Rob Herring , Souvik Chakravarty , Krzysztof Kozlowski , Andy Yan , Matthias Brugger , Mark Rutland , Conor Dooley , Konrad Dybcio , John Stultz , Moritz Fischer , Bartosz Golaszewski , Sudeep Holla Cc: Florian Fainelli , Dmitry Baryshkov , Mukesh Ojha , Andre Draszik , Kathiravan Thirumoorthy , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, Srinivas Kandagatla References: <20260304-arm-psci-system_reset2-vendor-reboots-v20-0-cf7d346b8372@oss.qualcomm.com> <20260304-arm-psci-system_reset2-vendor-reboots-v20-1-cf7d346b8372@oss.qualcomm.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260401_161947_992386_0C42D96C X-CRM114-Status: GOOD ( 11.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 04/03/2026 19:03, Shivendra Pratap wrote: > Devres APIs are intended for use in drivers, where the managed lifetime > of resources is tied directly to the driver attach/detach cycle. In > shared subsystem code, there is no guarantee that the subsystem > functions will only be called after a driver has been attached, nor that > they will not be referenced after the managed resources have been > released during driver detach. > > To ensure correct lifetime handling, avoid using devres-based > allocations in the reboot-mode and explicitly handle allocation and > cleanup of resources. > > Fixes: 4fcd504edbf7 ("power: reset: add reboot mode driver") I don't think this is correct tag. That commit added code which was a driver, not subsystem level things. Using devres, as you pointed out, in platform_driver is correct. Otherwise please specify what bug from that commit is being fixed. Best regards, Krzysztof