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 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6AB6FCA0FFE for ; Tue, 2 Sep 2025 15:57:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CA10710E12B; Tue, 2 Sep 2025 15:57:37 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="QCpm0nFA"; dkim-atps=neutral Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by gabe.freedesktop.org (Postfix) with ESMTPS id A2DCE10E009; Tue, 2 Sep 2025 15:57:36 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 808FD60222; Tue, 2 Sep 2025 15:57:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9E22BC4CEED; Tue, 2 Sep 2025 15:57:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1756828655; bh=oulaMx6/URE69aku7O02WZT2LJyGeZwWW9oibZaXKh0=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=QCpm0nFA8OqlHw6hwDFdaR8n/MIxwCN7Hw7zPhbdV6ZnbaNRJrTDjnrK/f5OwvFCT o2fFMEgMXc3hP3ka9oJ7VgzD2MqmAi8WWtVmOCSMhGhwTDsFB7YAP1VlwEjrGxPkR0 gRA0UvBQ+XMzjFv4lfHerXM5WYN0Xcsgf4uKQK1to/OuErcmrpqCNytqX9WsdTyt2y E2Ih4GmHi+UWU7owB15MuvtFfe9iwZ7xNSwYUYaZV+VTyXJMz+j0QAk9slfWfssatR FJ8iDpnwplN1DbuphLguGPmAm8UCYCJHsvu++drLD1gX65CO+pRhvzSpsCyP9a83Ef jjWNnJzVIkRRg== Message-ID: Date: Tue, 2 Sep 2025 17:57:22 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 12/12] PM: EM: Use scope-based cleanup helper To: Zihuan Zhang , "Rafael J . wysocki" , Viresh Kumar , Catalin Marinas , Will Deacon , Borislav Petkov , Dave Hansen , Srinivas Pandruvada , Michael Ellerman , Alim Akhtar , Thierry Reding , MyungJoo Ham , Kyungmin Park , Chanwoo Choi , Jani Nikula , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Simona Vetter , Daniel Lezcano , Sascha Hauer , Shawn Guo , Eduardo Valentin , Keerthy Cc: Ben Horgan , zhenglifeng , Zhang Rui , Len Brown , Lukasz Luba , Pengutronix Kernel Team , Beata Michalska , Fabio Estevam , Pavel Machek , Sumit Gupta , Prasanna Kumar T S M , Sudeep Holla , Yicong Yang , linux-pm@vger.kernel.org, linux-acpi@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, imx@lists.linux.dev, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250901085748.36795-1-zhangzihuan@kylinos.cn> <20250901085748.36795-13-zhangzihuan@kylinos.cn> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 01/09/2025 10:57, Zihuan Zhang wrote: > Replace the manual cpufreq_cpu_put() with __free(put_cpufreq_policy) > annotation for policy references. This reduces the risk of reference > counting mistakes and aligns the code with the latest kernel style. > > No functional change intended. > > Signed-off-by: Zihuan Zhang > --- > kernel/power/energy_model.c | 9 +++------ > 1 file changed, 3 insertions(+), 6 deletions(-) > > diff --git a/kernel/power/energy_model.c b/kernel/power/energy_model.c > index ea7995a25780..852d48039ce2 100644 > --- a/kernel/power/energy_model.c > +++ b/kernel/power/energy_model.c > @@ -451,7 +451,7 @@ static void > em_cpufreq_update_efficiencies(struct device *dev, struct em_perf_state *table) > { > struct em_perf_domain *pd = dev->em_pd; > - struct cpufreq_policy *policy; > + struct cpufreq_policy *policy __free(put_cpufreq_policy); You are not improving the source code here. This is not how to use __free() and you clearly do not understand the source code. What's more, you did not use standard tools which would tell you this is buggy and wrong. Don't introduce cleanup.h if you do not understand how it works. Best regards, Krzysztof