linux-kernel - Re: [PATCH 4/6] cpufreq: Remove cooling device usage

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Date:   Mon, 24 Jun 2019 11:35:02 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     edubezval@...il.com, linux-kernel@...r.kernel.org,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        "open list:CPU FREQUENCY SCALING FRAMEWORK" 
        <linux-pm@...r.kernel.org>
Subject: Re: [PATCH 4/6] cpufreq:  Remove cooling device usage

On 21-06-19, 15:23, Daniel Lezcano wrote:
> The cpufreq_cooling_unregister() function uses now the policy to
> unregister itself. The only purpose of the cooling device pointer is
> to unregister the cpu cooling device.
> 
> As there is no more need of this pointer, remove it.
> 
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> ---
>  drivers/cpufreq/cpufreq.c | 6 ++----
>  include/linux/cpufreq.h   | 3 ---
>  2 files changed, 2 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
> index dfbc9bea606c..1d8f85faeaca 100644
> --- a/drivers/cpufreq/cpufreq.c
> +++ b/drivers/cpufreq/cpufreq.c
> @@ -1379,7 +1379,7 @@ static int cpufreq_online(unsigned int cpu)
>  		cpufreq_driver->ready(policy);
>  
>  	if (cpufreq_driver->flags & CPUFREQ_IS_COOLING_DEV)
> -		policy->cdev = of_cpufreq_cooling_register(policy);
> +		of_cpufreq_cooling_register(policy);
>  
>  	pr_debug("initialization complete\n");
>  
> @@ -1468,10 +1468,8 @@ static int cpufreq_offline(unsigned int cpu)
>  		goto unlock;
>  	}
>  
> -	if (cpufreq_driver->flags & CPUFREQ_IS_COOLING_DEV) {
> +	if (cpufreq_driver->flags & CPUFREQ_IS_COOLING_DEV)
>  		cpufreq_cooling_unregister(policy);
> -		policy->cdev = NULL;
> -	}
>  
>  	if (cpufreq_driver->stop_cpu)
>  		cpufreq_driver->stop_cpu(policy);
> diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
> index d01a74fbc4db..9a42711f338b 100644
> --- a/include/linux/cpufreq.h
> +++ b/include/linux/cpufreq.h
> @@ -144,9 +144,6 @@ struct cpufreq_policy {
>  
>  	/* For cpufreq driver's internal use */
>  	void			*driver_data;
> -
> -	/* Pointer to the cooling device if used for thermal mitigation */
> -	struct thermal_cooling_device *cdev;
>  };
>  
>  struct cpufreq_freqs {

This too. In my view this should be merged with 2/6.

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

-- 
viresh