linux-kernel - Re: [PATCH v2 1/3] cpufreq: add resolve

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Message-ID: <20160531111451.GF9463@vireshk-i7>
Date:	Tue, 31 May 2016 16:44:51 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	Steve Muckle <steve.muckle@...aro.org>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Morten Rasmussen <morten.rasmussen@....com>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Juri Lelli <Juri.Lelli@....com>,
	Patrick Bellasi <patrick.bellasi@....com>,
	Michael Turquette <mturquette@...libre.com>
Subject: Re: [PATCH v2 1/3] cpufreq: add resolve_freq driver callback

On 25-05-16, 19:52, Steve Muckle wrote:
> +unsigned int cpufreq_driver_resolve_freq(struct cpufreq_policy *policy,
> +					 unsigned int target_freq)
> +{
> +	struct cpufreq_frequency_table *freq_table;
> +	int index, retval;
> +
> +	clamp_val(target_freq, policy->min, policy->max);

Rafael will kill me for this, as I have fallen into the same trap and
copied your *incorrect* code :(

This is a useless statement unless you do:

target_freq = clamp_val(target_freq, policy->min, policy->max);

-- 
viresh