linux-kernel - Re: [PATCH v1 03/10] cpufreq: Replace open-coded << with BIT()

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Date:   Mon, 21 Jan 2019 14:18:59 +0530
From:   Amit Kucheria <amit.kucheria@...aro.org>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Eduardo Valentin <edubezval@...il.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Linux PM list <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v1 03/10] cpufreq: Replace open-coded << with BIT()

On Thu, Jan 17, 2019 at 4:26 AM Rafael J. Wysocki <rjw@...ysocki.net> wrote:
>
> On Monday, January 14, 2019 5:34:55 PM CET Amit Kucheria wrote:
> > Minor clean-up to use BIT() and keep checkpatch happy. Clean up the
> > comment formatting while we're at it to make it easier to read.
> >
> > Signed-off-by: Amit Kucheria <amit.kucheria@...aro.org>
>
> Can you please do this cleanup as the first patch in the series, so it
> doesn't depend on the other patches in it, which isn't necessary IMO?

I've sent it out separately now, unconnected to the series.

Thanks.

Regards,
Amit

> > ---
> >  include/linux/cpufreq.h | 27 ++++++++++++++-------------
> >  1 file changed, 14 insertions(+), 13 deletions(-)
> >
> > diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
> > index 70ad02088825..ea303dfd5f05 100644
> > --- a/include/linux/cpufreq.h
> > +++ b/include/linux/cpufreq.h
> > @@ -351,14 +351,15 @@ struct cpufreq_driver {
> >  };
> >
> >  /* flags */
> > -#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 */
> > +
> > +/* driver isn't removed even if all ->init() calls failed */
> > +#define CPUFREQ_STICKY                               BIT(0)
> > +
> > +/* loops_per_jiffy or other kernel "constants" aren't affected by frequency transitions */
> > +#define CPUFREQ_CONST_LOOPS                  BIT(1)
> > +
> > +/* don't warn on suspend/resume speed mismatches */
> > +#define CPUFREQ_PM_NO_WARN                   BIT(2)
> >
> >  /*
> >   * This should be set by platforms having multiple clock-domains, i.e.
> > @@ -366,14 +367,14 @@ struct cpufreq_driver {
> >   * be created in cpu/cpu<num>/cpufreq/ directory and so they can use the same
> >   * governor with different tunables for different clusters.
> >   */
> > -#define CPUFREQ_HAVE_GOVERNOR_PER_POLICY (1 << 3)
> > +#define CPUFREQ_HAVE_GOVERNOR_PER_POLICY     BIT(3)
> >
> >  /*
> >   * Driver will do POSTCHANGE notifications from outside of their ->target()
> >   * routine and so must set cpufreq_driver->flags with this flag, so that core
> >   * can handle them specially.
> >   */
> > -#define CPUFREQ_ASYNC_NOTIFICATION  (1 << 4)
> > +#define CPUFREQ_ASYNC_NOTIFICATION           BIT(4)
> >
> >  /*
> >   * Set by drivers which want cpufreq core to check if CPU is running at a
> > @@ -382,19 +383,19 @@ struct cpufreq_driver {
> >   * from the table. And if that fails, we will stop further boot process by
> >   * issuing a BUG_ON().
> >   */
> > -#define CPUFREQ_NEED_INITIAL_FREQ_CHECK      (1 << 5)
> > +#define CPUFREQ_NEED_INITIAL_FREQ_CHECK      BIT(5)
> >
> >  /*
> >   * Set by drivers to disallow use of governors with "dynamic_switching" flag
> >   * set.
> >   */
> > -#define CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING (1 << 6)
> > +#define CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING    BIT(6)
> >
> >  /*
> >   * Set by drivers that want the core to automatically register the cpufreq
> >   * driver as a thermal cooling device
> >   */
> > -#define CPUFREQ_AUTO_REGISTER_COOLING_DEV (1 << 7)
> > +#define CPUFREQ_AUTO_REGISTER_COOLING_DEV    BIT(7)
> >
> >  int cpufreq_register_driver(struct cpufreq_driver *driver_data);
> >  int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
> >
>
>