linux-kernel - Re: [PATCH 4/7] cpufreq: Do not track governor name for scaling drivers with internal governors.

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Date:	Wed, 6 Feb 2013 07:20:32 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	dirk.brandewie@...il.com
Cc:	linux-kernel@...r.kernel.org, cpufreq@...r.kernel.org,
	Dirk Brandewie <dirk.j.brandewie@...el.com>
Subject: Re: [PATCH 4/7] cpufreq: Do not track governor name for scaling
 drivers with internal governors.

On Tue, Feb 5, 2013 at 11:54 PM,  <dirk.brandewie@...il.com> wrote:
> From: Dirk Brandewie <dirk.brandewie@...il.com>
>
> Scaling drivers that implement internal governors do not have governor
> structures assocaited with them.  Only track the name of the governor
> associated with the CPU if the driver does not implement
> cpufreq_driver.setpolicy()
>
> Signed-off-by: Dirk Brandewie <dirk.j.brandewie@...el.com>
> ---
>  drivers/cpufreq/cpufreq.c |    4 +++-
>  1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
> index d8daa4b..622e282 100644
> --- a/drivers/cpufreq/cpufreq.c
> +++ b/drivers/cpufreq/cpufreq.c
> @@ -1050,7 +1050,9 @@ static int __cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif
>                 __cpufreq_governor(data, CPUFREQ_GOV_STOP);
>
>  #ifdef CONFIG_HOTPLUG_CPU
> -       strncpy(per_cpu(cpufreq_cpu_governor, cpu), data->governor->name,
> +       if (!cpufreq_driver->setpolicy)
> +               strncpy(per_cpu(cpufreq_cpu_governor, cpu),
> +                       data->governor->name,
>                         CPUFREQ_NAME_LEN);

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