linux-kernel - Re: [PATCH v1 02/13] ACPI: thermal: Collapse trip devices update functions

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Date:   Tue, 26 Sep 2023 19:18:32 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux PM <linux-pm@...r.kernel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Zhang Rui <rui.zhang@...el.com>,
        Lukasz Luba <lukasz.luba@....com>,
        "Rafael J. Wysocki" <rafael@...nel.org>
Subject: Re: [PATCH v1 02/13] ACPI: thermal: Collapse trip devices update
 functions

On 21/09/2023 19:49, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> In order to reduce code duplication, merge update_passive_devices() and
> update_active_devices() into one function called update_trip_devices()
> that will be used for updating both the passive and active trip points.
> 
> No intentional functional impact.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> ---
>   drivers/acpi/thermal.c |   53 ++++++++++++++++++-------------------------------
>   1 file changed, 20 insertions(+), 33 deletions(-)
> 
> Index: linux-pm/drivers/acpi/thermal.c
> ===================================================================
> --- linux-pm.orig/drivers/acpi/thermal.c
> +++ linux-pm/drivers/acpi/thermal.c
> @@ -43,6 +43,8 @@
>   #define ACPI_THERMAL_MAX_ACTIVE		10
>   #define ACPI_THERMAL_MAX_LIMIT_STR_LEN	65
>   
> +#define ACPI_THERMAL_TRIP_PASSIVE	(-1)
> +
>   /*
>    * This exception is thrown out in two cases:
>    * 1.An invalid trip point becomes invalid or a valid trip point becomes invalid
> @@ -202,18 +204,25 @@ static void acpi_thermal_update_passive_
>   		ACPI_THERMAL_TRIPS_EXCEPTION(tz, "state");
>   }
>   
> -static bool update_passive_devices(struct acpi_thermal *tz, bool compare)
> +static bool update_trip_devices(struct acpi_thermal *tz,
> +				struct acpi_thermal_trip *acpi_trip,
> +				int index, bool compare)
>   {
> -	struct acpi_thermal_trip *acpi_trip = &tz->trips.passive.trip;
>   	struct acpi_handle_list devices;
> +	char method[] = "_PSL";
>   	acpi_status status;
>   
> +	if (index != ACPI_THERMAL_TRIP_PASSIVE) {
> +		method[1] = 'A';
> +		method[2] = 'L';
> +		method[3] = '0' + index;
> +	}

Could be index > 9 ?



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