linux-kernel - Re: [PATCH V2] cpufreq: Disallow ->resolve_freq() for drivers providing ->target

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Date:	Fri, 22 Jul 2016 01:22:22 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, steve.muckle@...aro.org,
	peterz@...radead.org, mingo@...hat.com, vincent.guittot@...aro.org,
	morten.rasmussen@....com, dietmar.eggemann@....com,
	Juri.Lelli@....com, patrick.bellasi@....com
Subject: Re: [PATCH V2] cpufreq: Disallow ->resolve_freq() for drivers providing ->target_index()

On Thursday, July 21, 2016 02:39:26 PM Viresh Kumar wrote:
> The handlers provided by cpufreq core are sufficient for resolving the
> frequency for drivers providing ->target_index(), as the core already
> has the frequency table and so ->resolve_freq() isn't required for such
> platforms.
> 
> This patch disallows drivers with ->target_index() callback to use the
> ->resolve_freq() callback.
> 
> Also, it fixes a potential kernel crash for drivers providing ->target()
> but no ->resolve_freq().
> 
> Fixes: e3c062360870 ("cpufreq: add cpufreq_driver_resolve_freq()")
> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>

OK, applied.

Thanks,
Rafael