Re: PATCH] cpufreq: Do not clear real_cpus mask on policy init
From: Viresh Kumar
Date: Mon Feb 13 2017 - 22:47:15 EST
On 13-02-17, 13:44, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
>
> 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@xxxxxxxxx>
> ---
> 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@xxxxxxxxxx>
--
viresh