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Thermal/cpu_cooling: Return directly for the cpu out of allowed_cpus in the cpufreq_thermal_notifier()
cpufreq_thermal_notifier() is to change the cpu's cpufreq in the allowed_cpus mask when associated thermal-cpufreq cdev's cooling state is changed. It's a cpufreq policy notifier handler and it will be triggered even if those cpus out of allowed_cpus has changed freq policy. cpufreq_thermal_notifier() checks the policy->cpu. If it belongs to allowed_cpus, change max_freq(default to 0) to the desire cpufreq value and pass 0 and max_freq to cpufreq_verify_within_limits() as cpufreq scope. But if not, do nothing and max_freq will remain 0. This will cause the cpufreq scope to become 0~0. This is not right. This patch is to return directly after finding cpu not belonging to allowed_cpus. Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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@ -322,6 +322,8 @@ static int cpufreq_thermal_notifier(struct notifier_block *nb,
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if (cpumask_test_cpu(policy->cpu, ¬ify_device->allowed_cpus))
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max_freq = notify_device->cpufreq_val;
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else
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return 0;
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/* Never exceed user_policy.max */
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if (max_freq > policy->user_policy.max)
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