linux-kernel - Re: [PATCH 2/2] PM / Domains: Extract code to power off/on a PM domain

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Date:	Wed, 29 Oct 2014 10:09:56 -0700
From:	Kevin Hilman <khilman@...nel.org>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Ulf Hansson <ulf.hansson@...aro.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>,
	"linux-pm\@vger.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] PM / Domains: Extract code to power off/on a PM domain

Geert Uytterhoeven <geert@...ux-m68k.org> writes:

> Hi Ulf,
>
> On Wed, Oct 29, 2014 at 2:25 PM, Ulf Hansson <ulf.hansson@...aro.org> wrote:
>> On 23 October 2014 14:12, Geert Uytterhoeven <geert+renesas@...der.be> wrote:
>>> PM domains are powered on/off from various places. Some callers do
>>> latency measurements, others don't. Consolidate using two helper
>>> functions, which always measure the latencies, and update the stored
>>> latencies when needed.
>>>
>>> Other minor changes:
>>>   - Use pr_warn() instead of pr_warning(),
>>>   - There's no need to check genpd->name, %s handles NULL pointers fine,
>>>   - Make the warning format strings identical, to save memory.
>>>
>>> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
>>
>> Reviewed-by: Ulf Hansson <ulf.hansson@...aro.org>
>
> Thanks for your review.
>
>>> --- a/drivers/base/power/domain.c
>>> +++ b/drivers/base/power/domain.c
>>> @@ -151,6 +151,59 @@ static void genpd_recalc_cpu_exit_latency(struct generic_pm_domain *genpd)
>>>         genpd->cpuidle_data->idle_state->exit_latency = usecs64;
>>>  }
>>>
>>> +static int do_genpd_power_on(struct generic_pm_domain *genpd)
>>
>> Should we try to agree on the prefixes of the function names in genpd?
>> Currently there are a mix of them.
>>
>> May I suggest we try to stick to this:
>>
>> Exported functions:
>> pm_genpd_*
>> _pm_genpd_*
>> __pm_genpd_*
>>
>> Static functions:
>> genpd_*
>> _genpd_*
>> __genpd_*
>>
>> What do you think? Do you have any better suggestions?
>
> Sounds sane.
>
> So:
>
> s/do_genpd_power_on/genpd_power_on/
> s/do_genpd_power_off/genpd_power_off/

With that name change, feel free to add

Reviewed-by: Kevin Hilman <khilman@...aro.org>

Kevin
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