linux-kernel - Re: [PATCH v2 2/3] thermal/core: Passing a parameter instead of calling the function again

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Message-ID: <CAJZ5v0j9pQz5eTwZdt-ZXBgrKkO7O3+G48XRJh2A5-j5Ze28=Q@mail.gmail.com>
Date:   Tue, 12 Jul 2022 20:16:38 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Manaf Meethalavalappu Pallikunhi <quic_manafm@...cinc.com>,
        "Zhang, Rui" <rui.zhang@...el.com>,
        Linux PM <linux-pm@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Amit Kucheria <amitk@...nel.org>
Subject: Re: [PATCH v2 2/3] thermal/core: Passing a parameter instead of
 calling the function again

On Fri, Jul 8, 2022 at 8:32 PM Daniel Lezcano <daniel.lezcano@...aro.org> wrote:
>
> As the trip temperature is already available when calling the
> function,

Which function?

I would change the subject to something like "Avoid calling
->get_trip_temp() unnecessarily" and then use the specific function
name in the changelog.

The changes themselves LGTM.

> pass it as a parameter instead of having the function
> calling the ops again to retrieve the same data.
>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
> ---
>  drivers/thermal/thermal_core.c | 8 ++------
>  1 file changed, 2 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
> index d9f771b15ed8..f66036b3daae 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -340,12 +340,8 @@ void thermal_zone_device_critical(struct thermal_zone_device *tz)
>  EXPORT_SYMBOL(thermal_zone_device_critical);
>
>  static void handle_critical_trips(struct thermal_zone_device *tz,
> -                                 int trip, enum thermal_trip_type trip_type)
> +                                 int trip, int trip_temp, enum thermal_trip_type trip_type)
>  {
> -       int trip_temp;
> -
> -       tz->ops->get_trip_temp(tz, trip, &trip_temp);
> -
>         /* If we have not crossed the trip_temp, we do not care. */
>         if (trip_temp <= 0 || tz->temperature < trip_temp)
>                 return;
> @@ -394,7 +390,7 @@ static void handle_thermal_trip(struct thermal_zone_device *tz, int trip)
>         handle_thermal_trip_crossed(tz, trip, trip_temp, hyst, type);
>
>         if (type == THERMAL_TRIP_CRITICAL || type == THERMAL_TRIP_HOT)
> -               handle_critical_trips(tz, trip, type);
> +               handle_critical_trips(tz, trip, trip_temp, type);
>         else
>                 handle_non_critical_trips(tz, trip);
>         /*
> --
> 2.25.1
>