mirror of https://gitee.com/openkylin/linux.git
cpufreq: Pass policy to cpufreq_add_policy_cpu()
The caller of cpufreq_add_policy_cpu() already has a pointer to the policy structure and there is no need to look it up again in cpufreq_add_policy_cpu(). Let's pass it directly. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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@ -897,21 +897,17 @@ static void cpufreq_init_policy(struct cpufreq_policy *policy)
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}
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#ifdef CONFIG_HOTPLUG_CPU
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static int cpufreq_add_policy_cpu(unsigned int cpu, unsigned int sibling,
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struct device *dev, bool frozen)
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static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy,
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unsigned int cpu, struct device *dev,
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bool frozen)
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{
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struct cpufreq_policy *policy;
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int ret = 0, has_target = !!cpufreq_driver->target;
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unsigned long flags;
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policy = cpufreq_cpu_get(sibling);
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if (WARN_ON_ONCE(!policy))
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return -ENODATA;
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if (has_target)
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__cpufreq_governor(policy, CPUFREQ_GOV_STOP);
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lock_policy_rwsem_write(sibling);
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lock_policy_rwsem_write(policy->cpu);
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write_lock_irqsave(&cpufreq_driver_lock, flags);
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@ -920,7 +916,7 @@ static int cpufreq_add_policy_cpu(unsigned int cpu, unsigned int sibling,
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per_cpu(cpufreq_cpu_data, cpu) = policy;
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write_unlock_irqrestore(&cpufreq_driver_lock, flags);
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unlock_policy_rwsem_write(sibling);
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unlock_policy_rwsem_write(policy->cpu);
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if (has_target) {
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__cpufreq_governor(policy, CPUFREQ_GOV_START);
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@ -931,7 +927,6 @@ static int cpufreq_add_policy_cpu(unsigned int cpu, unsigned int sibling,
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if (!frozen)
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ret = sysfs_create_link(&dev->kobj, &policy->kobj, "cpufreq");
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cpufreq_cpu_put(policy);
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return ret;
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}
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#endif
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@ -1014,8 +1009,7 @@ static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif,
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struct cpufreq_policy *cp = per_cpu(cpufreq_cpu_data, sibling);
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if (cp && cpumask_test_cpu(cpu, cp->related_cpus)) {
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read_unlock_irqrestore(&cpufreq_driver_lock, flags);
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return cpufreq_add_policy_cpu(cpu, sibling, dev,
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frozen);
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return cpufreq_add_policy_cpu(cp, cpu, dev, frozen);
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}
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}
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read_unlock_irqrestore(&cpufreq_driver_lock, flags);
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