From nobody Fri Oct 3 13:32:39 2025 Received: from mailgw.kylinos.cn (mailgw.kylinos.cn [124.126.103.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A3C343002DC; Mon, 1 Sep 2025 08:59:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=124.126.103.232 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756717153; cv=none; b=W7ACWeXGCjk1Vv+2xRpZCmUXteXTuf7xN8Tv/7eWJ8TgvdEG1BB3V3yJ0ZZqL5RRDce6YHrFc3IYqH1YvgQikZCD80RdjYd4Zd7ssh9Qoyes9JlzWZjfrWxndpOyY1d65Nvr9ApC654ZD00zp9oBBloH5XHxcdqJg4hjIZG8sSc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756717153; c=relaxed/simple; bh=4tj3hkSdGBHU2nCv4WncFZkMvmh6Z1BDT7S6gxT4ks0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=mxA8AlW/SpI8yYB8+UVet4rd3W+0C5s2wPRXRTApBHxvzkwqBq05I75nmyswhm4W3HkaBI0cJCZ5leczyB58Bu9OpopGJtbz4PRg8XF1iSxd07pPo18L8uXcj8IZ/xn9zlarj/QSlyygGCTlb4Os2YGyC6DO2qwFWkf0i0cLRR0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=kylinos.cn; arc=none smtp.client-ip=124.126.103.232 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kylinos.cn X-UUID: e86bfae4871111f0b29709d653e92f7d-20250901 X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.45,REQID:9856c3cb-6274-461f-bd60-bd9e3453544a,IP:0,U RL:0,TC:0,Content:-5,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION :release,TS:-5 X-CID-META: VersionHash:6493067,CLOUDID:1f38d007408be91faa64e7344a36a8e5,BulkI D:nil,BulkQuantity:0,Recheck:0,SF:81|82|102|850,TC:nil,Content:0|50,EDM:-3 ,IP:nil,URL:0,File:nil,RT:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV :0,LES:1,SPR:NO,DKR:0,DKP:0,BRR:0,BRE:0,ARC:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: e86bfae4871111f0b29709d653e92f7d-20250901 Received: from mail.kylinos.cn [(10.44.16.175)] by mailgw.kylinos.cn (envelope-from ) (Generic MTA) with ESMTP id 1266094301; Mon, 01 Sep 2025 16:59:03 +0800 Received: from mail.kylinos.cn (localhost [127.0.0.1]) by mail.kylinos.cn (NSMail) with SMTP id B89CBE008FA7; Mon, 1 Sep 2025 16:59:02 +0800 (CST) X-ns-mid: postfix-68B56055-952872770 Received: from localhost.localdomain (unknown [172.25.120.24]) by mail.kylinos.cn (NSMail) with ESMTPA id C0DDDE008FA8; Mon, 1 Sep 2025 16:58:52 +0800 (CST) From: Zihuan Zhang To: "Rafael J . wysocki" , Viresh Kumar , Catalin Marinas , Will Deacon , Borislav Petkov , Dave Hansen , Srinivas Pandruvada , Michael Ellerman , Krzysztof Kozlowski , 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, Zihuan Zhang Subject: [PATCH v3 12/12] PM: EM: Use scope-based cleanup helper Date: Mon, 1 Sep 2025 16:57:48 +0800 Message-Id: <20250901085748.36795-13-zhangzihuan@kylinos.cn> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250901085748.36795-1-zhangzihuan@kylinos.cn> References: <20250901085748.36795-1-zhangzihuan@kylinos.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 *t= able) { struct em_perf_domain *pd =3D dev->em_pd; - struct cpufreq_policy *policy; + struct cpufreq_policy *policy __free(put_cpufreq_policy); int found =3D 0; int i, cpu; =20 @@ -479,8 +479,6 @@ em_cpufreq_update_efficiencies(struct device *dev, stru= ct em_perf_state *table) found++; } =20 - cpufreq_cpu_put(policy); - if (!found) return; =20 @@ -787,21 +785,20 @@ static void em_check_capacity_update(void) =20 /* Check if CPUs capacity has changed than update EM */ for_each_possible_cpu(cpu) { - struct cpufreq_policy *policy; + struct cpufreq_policy *policy __free(put_cpufreq_policy) =3D + cpufreq_cpu_get(cpu); struct em_perf_domain *pd; struct device *dev; =20 if (cpumask_test_cpu(cpu, cpu_done_mask)) continue; =20 - policy =3D cpufreq_cpu_get(cpu); if (!policy) { pr_debug("Accessing cpu%d policy failed\n", cpu); schedule_delayed_work(&em_update_work, msecs_to_jiffies(1000)); break; } - cpufreq_cpu_put(policy); =20 dev =3D get_cpu_device(cpu); pd =3D em_pd_get(dev); --=20 2.25.1