linux-kernel - Re: [PATCH v1] thermal: core: Introduce thermal_governor_trip

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Date: Wed, 24 Apr 2024 08:26:48 +0100
From: Lukasz Luba <lukasz.luba@....com>
To: "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc: LKML <linux-kernel@...r.kernel.org>, "Rafael J. Wysocki"
 <rafael@...nel.org>, Linux PM <linux-pm@...r.kernel.org>,
 Daniel Lezcano <daniel.lezcano@...aro.org>
Subject: Re: [PATCH v1] thermal: core: Introduce
 thermal_governor_trip_crossed()



On 4/23/24 20:01, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> Add a wrapper around the .trip_crossed() governor callback invocation
> to reduce code duplications slightly and improve the code layout in
> __thermal_zone_device_update().
> 
> No intentional functional impact.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> ---
> 
> As requested in https://lore.kernel.org/linux-pm/3c169af3-e9c3-47c0-b343-48f699680009@linaro.org/
> 
> ---
>   drivers/thermal/thermal_core.c |   15 +++++++++++----
>   1 file changed, 11 insertions(+), 4 deletions(-)
> 
> Index: linux-pm/drivers/thermal/thermal_core.c
> ===================================================================
> --- linux-pm.orig/drivers/thermal/thermal_core.c
> +++ linux-pm/drivers/thermal/thermal_core.c
> @@ -450,6 +450,15 @@ static void thermal_zone_device_init(str
>   		pos->initialized = false;
>   }
>   
> +static void thermal_governor_trip_crossed(struct thermal_governor *governor,
> +					  struct thermal_zone_device *tz,
> +					  const struct thermal_trip *trip,
> +					  bool crossed_up)
> +{
> +	if (governor->trip_crossed)
> +		governor->trip_crossed(tz, trip, crossed_up);
> +}
> +
>   static int thermal_trip_notify_cmp(void *ascending, const struct list_head *a,
>   				   const struct list_head *b)
>   {
> @@ -489,16 +498,14 @@ void __thermal_zone_device_update(struct
>   	list_for_each_entry(td, &way_up_list, notify_list_node) {
>   		thermal_notify_tz_trip_up(tz, &td->trip);
>   		thermal_debug_tz_trip_up(tz, &td->trip);
> -		if (governor->trip_crossed)
> -			governor->trip_crossed(tz, &td->trip, true);
> +		thermal_governor_trip_crossed(governor, tz, &td->trip, true);
>   	}
>   
>   	list_sort(NULL, &way_down_list, thermal_trip_notify_cmp);
>   	list_for_each_entry(td, &way_down_list, notify_list_node) {
>   		thermal_notify_tz_trip_down(tz, &td->trip);
>   		thermal_debug_tz_trip_down(tz, &td->trip);
> -		if (governor->trip_crossed)
> -			governor->trip_crossed(tz, &td->trip, false);
> +		thermal_governor_trip_crossed(governor, tz, &td->trip, false);
>   	}
>   
>   	if (governor->manage)
> 
> 
> 

Good suggestion from Daniel. That code would probably be inlined anyway
by most of compilers today, so no harm & LGTM.

Reviewed-by: Lukasz Luba <lukasz.luba@....com>