Re: [PATCH RESEND 09/11] cpufreq: rewrite cpufreq_driver->flags usingshift operator

From: Srivatsa S. Bhat
Date: Thu Oct 03 2013 - 03:37:02 EST


On 10/02/2013 02:13 PM, Viresh Kumar wrote:
> Currently cpufreq_driver's flags are defined directly using 0x1, 0x2, 0x4, 0x8,
> etc.. As the list grows it doesn't stays much readable..
>
> Lets use bitwise shift operator << to generate these numbers for respective
> positions.
>
> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> ---

Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@xxxxxxxxxxxxxxxxxx>

Regards,
Srivatsa S. Bhat

> include/linux/cpufreq.h | 15 ++++++++-------
> 1 file changed, 8 insertions(+), 7 deletions(-)
>
> diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
> index a72bac2..9321059 100644
> --- a/include/linux/cpufreq.h
> +++ b/include/linux/cpufreq.h
> @@ -225,13 +225,14 @@ struct cpufreq_driver {
> };
>
> /* flags */
> -#define CPUFREQ_STICKY 0x01 /* the driver isn't removed even if
> - * all ->init() calls failed */
> -#define CPUFREQ_CONST_LOOPS 0x02 /* loops_per_jiffy or other kernel
> - * "constants" aren't affected by
> - * frequency transitions */
> -#define CPUFREQ_PM_NO_WARN 0x04 /* don't warn on suspend/resume speed
> - * mismatches */
> +#define CPUFREQ_STICKY (1 << 0) /* driver isn't removed even if
> + all ->init() calls failed */
> +#define CPUFREQ_CONST_LOOPS (1 << 1) /* loops_per_jiffy or other
> + kernel "constants" aren't
> + affected by frequency
> + transitions */
> +#define CPUFREQ_PM_NO_WARN (1 << 2) /* don't warn on suspend/resume
> + speed mismatches */
>
> int cpufreq_register_driver(struct cpufreq_driver *driver_data);
> int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
>


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