linux-kernel - Re: [PATCH v2 1/2] thermal: trip: Drop a redundant check from thermal_zone_set

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Message-ID: <23b21239-4268-43e2-acc3-4ebc454944e7@arm.com>
Date:   Tue, 28 Nov 2023 21:44:04 +0000
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>,
        Zhang Rui <rui.zhang@...el.com>
Subject: Re: [PATCH v2 1/2] thermal: trip: Drop a redundant check from
 thermal_zone_set_trip()



On 11/28/23 13:56, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> After recent changes in the thermal framework, a trip points array is
> required for registering a thermal zone that is not tripless, so the
> tz->trips pointer in thermal_zone_set_trip() is never NULL and the
> check involving it is redundant.  Drop that check.
> 
> No functional impact.
> 
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> ---
> 
> New patch in v2.
> 
> ---
>   drivers/thermal/thermal_trip.c |    3 ---
>   1 file changed, 3 deletions(-)
> 
> Index: linux-pm/drivers/thermal/thermal_trip.c
> ===================================================================
> --- linux-pm.orig/drivers/thermal/thermal_trip.c
> +++ linux-pm/drivers/thermal/thermal_trip.c
> @@ -153,9 +153,6 @@ int thermal_zone_set_trip(struct thermal
>   	struct thermal_trip t;
>   	int ret;
>   
> -	if (!tz->ops->set_trip_temp && !tz->ops->set_trip_hyst && !tz->trips)
> -		return -EINVAL;
> -
>   	ret = __thermal_zone_get_trip(tz, trip_id, &t);
>   	if (ret)
>   		return ret;
> 
> 
> 

LGTM

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