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Re: PATCH] cpufreq: Do not clear real_cpus mask on policy init

From Viresh Kumar <viresh.kumar@linaro.org>
Newsgroups linux.kernel
Subject Re: PATCH] cpufreq: Do not clear real_cpus mask on policy init
Date 2017-02-14 04:50 +0100
Message-ID <taChQ-4Iv-19@gated-at.bofh.it> (permalink)
References <taoeR-3KT-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On 13-02-17, 13:44, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> 
> If new_policy is set in cpufreq_online(), the policy object has just
> been created and its real_cpus mask has been zeroed on allocation,
> and the driver's ->init() callback should not touch it.
> 
> It doesn't need to be cleared again, so don't do that.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> ---
>  drivers/cpufreq/cpufreq.c |    2 --
>  1 file changed, 2 deletions(-)
> 
> Index: linux-pm/drivers/cpufreq/cpufreq.c
> ===================================================================
> --- linux-pm.orig/drivers/cpufreq/cpufreq.c
> +++ linux-pm/drivers/cpufreq/cpufreq.c
> @@ -1166,8 +1166,6 @@ static int cpufreq_online(unsigned int c
>  	if (new_policy) {
>  		/* related_cpus should at least include policy->cpus. */
>  		cpumask_copy(policy->related_cpus, policy->cpus);
> -		/* Clear mask of registered CPUs */
> -		cpumask_clear(policy->real_cpus);
>  	}
>  
>  	/*

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

-- 
viresh

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PATCH] cpufreq: Do not clear real_cpus mask on policy init "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2017-02-13 13:50 +0100
  Re: PATCH] cpufreq: Do not clear real_cpus mask on policy init Viresh Kumar <viresh.kumar@linaro.org> - 2017-02-14 04:50 +0100

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