linux-kernel - Re: [PATCH v1 10/16] thermal: gov_step_wise: Clean up thermal_zone_trip

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Date: Fri, 19 Apr 2024 19:21:55 +0100
From: Lukasz Luba <lukasz.luba@....com>
To: "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc: LKML <linux-kernel@...r.kernel.org>, Linux PM <linux-pm@...r.kernel.org>,
 Daniel Lezcano <daniel.lezcano@...aro.org>,
 Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject: Re: [PATCH v1 10/16] thermal: gov_step_wise: Clean up
 thermal_zone_trip_update()



On 4/10/24 17:44, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> Do some assorted cleanups in thermal_zone_trip_update():
> 
>   * Compute the trend value upfront.
>   * Move old_target definition to the block where it is used.
>   * Adjust white space around diagnositc messages and locking.

s/diagnositc/diagnostic/

>   * Use suitable field formatting in a message to avoid an explicit
>     cast to int.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> ---
>   drivers/thermal/gov_step_wise.c |   13 +++++++------
>   1 file changed, 7 insertions(+), 6 deletions(-)
> 
> Index: linux-pm/drivers/thermal/gov_step_wise.c
> ===================================================================
> --- linux-pm.orig/drivers/thermal/gov_step_wise.c
> +++ linux-pm/drivers/thermal/gov_step_wise.c
> @@ -65,13 +65,10 @@ static void thermal_zone_trip_update(str
>   				     const struct thermal_trip *trip,
>   				     int trip_threshold)
>   {
> +	enum thermal_trend trend = get_tz_trend(tz, trip);
>   	int trip_id = thermal_zone_trip_id(tz, trip);
> -	enum thermal_trend trend;
>   	struct thermal_instance *instance;
>   	bool throttle = false;
> -	int old_target;
> -
> -	trend = get_tz_trend(tz, trip);
>   
>   	if (tz->temperature >= trip_threshold) {
>   		throttle = true;
> @@ -82,13 +79,16 @@ static void thermal_zone_trip_update(str
>   		trip_id, trip->type, trip_threshold, trend, throttle);
>   
>   	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
> +		int old_target;
> +
>   		if (instance->trip != trip)
>   			continue;
>   
>   		old_target = instance->target;
>   		instance->target = get_target_state(instance, trend, throttle);
> -		dev_dbg(&instance->cdev->device, "old_target=%d, target=%d\n",
> -					old_target, (int)instance->target);
> +
> +		dev_dbg(&instance->cdev->device, "old_target=%d, target=%ld\n",
> +			old_target, instance->target);
>   
>   		if (instance->initialized && old_target == instance->target)
>   			continue;
> @@ -104,6 +104,7 @@ static void thermal_zone_trip_update(str
>   		}
>   
>   		instance->initialized = true;
> +
>   		mutex_lock(&instance->cdev->lock);
>   		instance->cdev->updated = false; /* cdev needs update */
>   		mutex_unlock(&instance->cdev->lock);
> 
> 
> 

LGTM w/ spelling fixed.

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