linux-kernel - Re: [PATCH v1 2/6] thermal: trip: Define for_each

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Message-ID: <63b7f4da-8ddb-443c-8074-66b7b0c6cd84@arm.com>
Date:   Fri, 20 Oct 2023 18:15:02 +0100
From:   Lukasz Luba <lukasz.luba@....com>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Zhang Rui <rui.zhang@...el.com>,
        Linux PM <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v1 2/6] thermal: trip: Define for_each_trip() macro



On 10/6/23 18:41, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> Define a new macro for_each_trip() to be used by the thermal core code
> and thermal governors for walking trips in a given thermal zone.
> 
> Modify for_each_thermal_trip() to use this macro instead of an open-
> coded loop over trips.
> 
> No intentional functional impact.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> ---
>   drivers/thermal/thermal_core.h |    3 +++
>   drivers/thermal/thermal_trip.c |    7 ++++---
>   2 files changed, 7 insertions(+), 3 deletions(-)
> 
> Index: linux-pm/drivers/thermal/thermal_core.h
> ===================================================================
> --- linux-pm.orig/drivers/thermal/thermal_core.h
> +++ linux-pm/drivers/thermal/thermal_core.h
> @@ -116,6 +116,9 @@ void __thermal_zone_device_update(struct
>   				  enum thermal_notify_event event);
>   
>   /* Helpers */
> +#define for_each_trip(__tz, __trip)	\
> +	for (__trip = __tz->trips; __trip - __tz->trips < __tz->num_trips; __trip++)
> +
>   void __thermal_zone_set_trips(struct thermal_zone_device *tz);
>   int __thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
>   			    struct thermal_trip *trip);
> Index: linux-pm/drivers/thermal/thermal_trip.c
> ===================================================================
> --- linux-pm.orig/drivers/thermal/thermal_trip.c
> +++ linux-pm/drivers/thermal/thermal_trip.c
> @@ -13,12 +13,13 @@ int for_each_thermal_trip(struct thermal
>   			  int (*cb)(struct thermal_trip *, void *),
>   			  void *data)
>   {
> -	int i, ret;
> +	struct thermal_trip *trip;
> +	int ret;
>   
>   	lockdep_assert_held(&tz->lock);
>   
> -	for (i = 0; i < tz->num_trips; i++) {
> -		ret = cb(&tz->trips[i], data);
> +	for_each_trip(tz, trip) {
> +		ret = cb(trip, data);
>   		if (ret)
>   			return ret;
>   	}
> 
> 
> 

LGTM

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