linux-kernel - [PATCH v1 06/10] thermal: core: Move some trip processing to thermal_trip

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Message-ID: <1982859.PYKUYFuaPT@rjwysocki.net>
Date: Wed, 16 Oct 2024 13:29:14 +0200
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>,
 Lukasz Luba <lukasz.luba@....com>, Zhang Rui <rui.zhang@...el.com>,
 Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
Subject:
 [PATCH v1 06/10] thermal: core: Move some trip processing to
 thermal_trip_crossed()

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Notice that some processing related to trip point crossing carried out
in handle_thermal_trip() and thermal_zone_set_trip_temp() may as well
be done in thermal_trip_crossed(), which allows code duplication to be
reduced, so change the code accordingly.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/thermal/thermal_core.c |   21 ++++++++++-----------
 drivers/thermal/thermal_trip.c |   17 ++++++-----------
 2 files changed, 16 insertions(+), 22 deletions(-)

Index: linux-pm/drivers/thermal/thermal_core.c
===================================================================
--- linux-pm.orig/drivers/thermal/thermal_core.c
+++ linux-pm/drivers/thermal/thermal_core.c
@@ -460,11 +460,6 @@ static void handle_thermal_trip(struct t
 		if (tz->temperature < trip->temperature - trip->hysteresis) {
 			td->notify_temp = trip->temperature - trip->hysteresis;
 			move_trip_to_sorted_list(td, way_down_list);
-
-			if (trip->type == THERMAL_TRIP_PASSIVE) {
-				tz->passive--;
-				WARN_ON(tz->passive < 0);
-			}
 		} else {
 			td->threshold -= trip->hysteresis;
 		}
@@ -478,12 +473,6 @@ static void handle_thermal_trip(struct t
 		move_trip_to_sorted_list(td, way_up_list);
 
 		td->threshold -= trip->hysteresis;
-
-		if (trip->type == THERMAL_TRIP_PASSIVE)
-			tz->passive++;
-		else if (trip->type == THERMAL_TRIP_CRITICAL ||
-			 trip->type == THERMAL_TRIP_HOT)
-			handle_critical_trips(tz, trip);
 	}
 }
 
@@ -533,9 +522,19 @@ static void thermal_trip_crossed(struct
 	const struct thermal_trip *trip = &td->trip;
 
 	if (crossed_up) {
+		if (trip->type == THERMAL_TRIP_PASSIVE)
+			tz->passive++;
+		else if (trip->type == THERMAL_TRIP_CRITICAL ||
+			 trip->type == THERMAL_TRIP_HOT)
+			handle_critical_trips(tz, trip);
+
 		thermal_notify_tz_trip_up(tz, trip);
 		thermal_debug_tz_trip_up(tz, trip);
 	} else {
+		if (trip->type == THERMAL_TRIP_PASSIVE) {
+			tz->passive--;
+			WARN_ON(tz->passive < 0);
+		}
 		thermal_notify_tz_trip_down(tz, trip);
 		thermal_debug_tz_trip_down(tz, trip);
 	}
Index: linux-pm/drivers/thermal/thermal_trip.c
===================================================================
--- linux-pm.orig/drivers/thermal/thermal_trip.c
+++ linux-pm/drivers/thermal/thermal_trip.c
@@ -108,18 +108,13 @@ void thermal_zone_set_trip_temp(struct t
 	if (temp == THERMAL_TEMP_INVALID) {
 		struct thermal_trip_desc *td = trip_to_trip_desc(trip);
 
-		if (tz->temperature >= td->threshold) {
-			/*
-			 * The trip has been crossed on the way up, so some
-			 * adjustments are needed to compensate for the lack
-			 * of it going forward.
-			 */
-			if (trip->type == THERMAL_TRIP_PASSIVE) {
-				tz->passive--;
-				WARN_ON_ONCE(tz->passive < 0);
-			}
+		/*
+		 * If the trip has been crossed on the way up, some adjustments
+		 * are needed to compensate for the lack of it going forward.
+		 */
+		if (tz->temperature >= td->threshold)
 			thermal_zone_trip_down(tz, td);
-		}
+
 		/*
 		 * Invalidate the threshold to avoid triggering a spurious
 		 * trip crossing notification when the trip becomes valid.