linux-kernel - [PATCH v3 1/2] thermal: trip: Drop a redundant check from thermal_zone_set

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Date:   Wed, 29 Nov 2023 14:36:07 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Linux PM <linux-pm@...r.kernel.org>
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>,
        Lukasz Luba <lukasz.luba@....com>
Subject: [PATCH v3 1/2] thermal: trip: Drop a redundant check from thermal_zone_set_trip()

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

v2 -> v3: Add the tag from Lukasz

v1 -> v2: New patch

---
 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;