linux-kernel - Re: [PATCH] cpufreq: schedutil: Simplify sugov_update_next

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Message-ID: <20201117041555.s6x7wpjpnhfq7y3m@vireshk-i7>
Date:   Tue, 17 Nov 2020 09:45:55 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     Linux PM <linux-pm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Zhang Rui <rui.zhang@...el.com>
Subject: Re: [PATCH] cpufreq: schedutil: Simplify sugov_update_next_freq()

On 12-11-20, 20:26, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> Rearrange a conditional to make it more straightforward.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> ---
>  kernel/sched/cpufreq_schedutil.c |    8 +++-----
>  1 file changed, 3 insertions(+), 5 deletions(-)
> 
> Index: linux-pm/kernel/sched/cpufreq_schedutil.c
> ===================================================================
> --- linux-pm.orig/kernel/sched/cpufreq_schedutil.c
> +++ linux-pm/kernel/sched/cpufreq_schedutil.c
> @@ -102,12 +102,10 @@ static bool sugov_should_update_freq(str
>  static bool sugov_update_next_freq(struct sugov_policy *sg_policy, u64 time,
>  				   unsigned int next_freq)
>  {
> -	if (!sg_policy->need_freq_update) {
> -		if (sg_policy->next_freq == next_freq)
> -			return false;
> -	} else {
> +	if (sg_policy->need_freq_update)
>  		sg_policy->need_freq_update = cpufreq_driver_test_flags(CPUFREQ_NEED_UPDATE_LIMITS);
> -	}
> +	else if (sg_policy->next_freq == next_freq)
> +		return false;
>  
>  	sg_policy->next_freq = next_freq;
>  	sg_policy->last_freq_update_time = time;
> 

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

-- 
viresh