linux-kernel - Re: [PATCH 1/5] cpufreq: handle SW coordinated CPUs

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Message-ID: <20121128105120.GB22300@balto.lan>
Date:	Wed, 28 Nov 2012 11:51:20 +0100
From:	Fabio Baltieri <fabio.baltieri@...aro.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
Cc:	linux-pm@...r.kernel.org, cpufreq@...r.kernel.org,
	Rickard Andersson <rickard.andersson@...ricsson.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Lee Jones <lee.jones@...aro.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] cpufreq: handle SW coordinated CPUs

Hello Rafael,

On Tue, Nov 27, 2012 at 11:05:52PM +0100, Rafael J. Wysocki wrote:
> >  static inline void dbs_timer_init(struct dbs_data *dbs_data,
> > -		struct cpu_dbs_common_info *cdbs, unsigned int sampling_rate)
> > +				  struct cpu_dbs_common_info *cdbs,
> > +				  unsigned int sampling_rate,
> > +				  int cpu)
> >  {
> >  	int delay = delay_for_sampling_rate(sampling_rate);
> > +	struct cpu_dbs_common_info *cdbs_local = dbs_data->get_cpu_cdbs(cpu);
> > +	struct od_cpu_dbs_info_s *od_dbs_info;
> > +
> > +	cancel_delayed_work_sync(&cdbs_local->work);
> > +
> > +	if (dbs_data->governor == GOV_ONDEMAND) {
> > +		od_dbs_info = dbs_data->get_cpu_dbs_info_s(cpu);
> > +		od_dbs_info->sample_type = OD_NORMAL_SAMPLE;
> > +	}
> 
> The patch looks good in general except for the special case above.
> 
> Why exactly is it necessary?

Now that you point it out... it's not!  It was part of ondemand init and
moved in cpufreq_governor_dbs, I forgot to take it out the way.

Also, I think that cancel_delayed_work_sync can be removed too.

Should I send an updated version as soon as I get an ack for the other
patches in the series or do you want me to wait until 3.8-rc1?

Thanks,
Fabio

-- 
Fabio Baltieri
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