Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751827AbdCPFbE (ORCPT ); Thu, 16 Mar 2017 01:31:04 -0400 Received: from mail-pg0-f47.google.com ([74.125.83.47]:34100 "EHLO mail-pg0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751764AbdCPFbB (ORCPT ); Thu, 16 Mar 2017 01:31:01 -0400 From: Viresh Kumar To: Rafael Wysocki , Javi Merino , Zhang Rui , Eduardo Valentin , Amit Daniel Kachhap , Viresh Kumar Cc: linaro-kernel@lists.linaro.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Vincent Guittot Subject: [PATCH 15/17] thermal: cpu_cooling: don't store cpu_dev in cpufreq_dev Date: Thu, 16 Mar 2017 10:59:50 +0530 Message-Id: X-Mailer: git-send-email 2.7.1.410.g6faf27b In-Reply-To: References: In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2704 Lines: 79 'cpu_dev' is used by only one function, get_static_power(), and it wouldn't be time consuming to get the cpu device structure within it. This would help removing cpu_dev from struct cpufreq_cooling_device. Signed-off-by: Viresh Kumar --- drivers/thermal/cpu_cooling.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c index fd84802d2e8e..fb535fd5aa12 100644 --- a/drivers/thermal/cpu_cooling.c +++ b/drivers/thermal/cpu_cooling.c @@ -87,7 +87,6 @@ struct time_in_idle { * @node: list_head to link all cpufreq_cooling_device together. * @last_load: load measured by the latest call to cpufreq_get_requested_power() * @idle_time: idle time stats - * @cpu_dev: the cpu_device of policy->cpu. * @plat_get_static_power: callback to calculate the static power * * This structure is required for keeping information of each registered @@ -104,7 +103,6 @@ struct cpufreq_cooling_device { struct list_head node; u32 last_load; struct time_in_idle *idle_time; - struct device *cpu_dev; get_static_t plat_get_static_power; }; @@ -256,8 +254,6 @@ static int update_freq_table(struct cpufreq_cooling_device *cpufreq_dev, freq_table[i].power = power; } - cpufreq_dev->cpu_dev = dev; - return 0; } @@ -339,19 +335,22 @@ static int get_static_power(struct cpufreq_cooling_device *cpufreq_dev, { struct dev_pm_opp *opp; unsigned long voltage; - struct cpumask *cpumask = cpufreq_dev->policy->related_cpus; + struct cpufreq_policy *policy = cpufreq_dev->policy; + struct cpumask *cpumask = policy->related_cpus; unsigned long freq_hz = freq * 1000; + struct device *dev; - if (!cpufreq_dev->plat_get_static_power || !cpufreq_dev->cpu_dev) { + if (!cpufreq_dev->plat_get_static_power) { *power = 0; return 0; } - opp = dev_pm_opp_find_freq_exact(cpufreq_dev->cpu_dev, freq_hz, - true); + dev = get_cpu_device(policy->cpu); + WARN_ON(!dev); + + opp = dev_pm_opp_find_freq_exact(dev, freq_hz, true); if (IS_ERR(opp)) { - dev_warn_ratelimited(cpufreq_dev->cpu_dev, - "Failed to find OPP for frequency %lu: %ld\n", + dev_warn_ratelimited(dev, "Failed to find OPP for frequency %lu: %ld\n", freq_hz, PTR_ERR(opp)); return -EINVAL; } @@ -360,8 +359,7 @@ static int get_static_power(struct cpufreq_cooling_device *cpufreq_dev, dev_pm_opp_put(opp); if (voltage == 0) { - dev_err_ratelimited(cpufreq_dev->cpu_dev, - "Failed to get voltage for frequency %lu\n", + dev_err_ratelimited(dev, "Failed to get voltage for frequency %lu\n", freq_hz); return -EINVAL; } -- 2.7.1.410.g6faf27b