thermal/debugfs: Make tze_seq_show() skip invalid trips and trips with no stats

Currently, tze_seq_show() output includes all of the trips in the zone
except for critical ones, including invalid trips and trips with no stats
which is confusing.

Make it skip the trips for which there is not mitigation information.

Signed-off-by: Rafael J. Wysocki <[email protected]>
Acked-by: Daniel Lezcano <[email protected]>

Author: rafaeljw

drivers/thermal/thermal_debugfs.c

@@ -754,6 +754,11 @@ static int tze_seq_show(struct seq_file *s, void *v)
 
 	for_each_trip_desc(tz, td) {
 		const struct thermal_trip *trip = &td->trip;
+		struct trip_stats *trip_stats;
+
+		/* Skip invalid trips. */
+		if (trip->temperature == THERMAL_TEMP_INVALID)
+			continue;
 
 		/*
 		 * There is no possible mitigation happening at the
@@ -763,24 +768,29 @@ static int tze_seq_show(struct seq_file *s, void *v)
 		if (trip->type == THERMAL_TRIP_CRITICAL)
 			continue;
 
+		trip_id = thermal_zone_trip_id(tz, trip);
+		trip_stats = &tze->trip_stats[trip_id];
+
+		/* Skip trips without any stats. */
+		if (trip_stats->min > trip_stats->max)
+			continue;
+
 		if (trip->type == THERMAL_TRIP_PASSIVE)
 			type = "passive";
 		else if (trip->type == THERMAL_TRIP_ACTIVE)
 			type = "active";
 		else
 			type = "hot";
 
-		trip_id = thermal_zone_trip_id(tz, trip);
-
 		seq_printf(s, "| %*d | %*s | %*d | %*d | %*lld | %*d | %*d | %*d |\n",
 			   4 , trip_id,
 			   8, type,
 			   9, trip->temperature,
 			   9, trip->hysteresis,
-			   10, ktime_to_ms(tze->trip_stats[trip_id].duration),
-			   9, tze->trip_stats[trip_id].avg,
-			   9, tze->trip_stats[trip_id].min,
-			   9, tze->trip_stats[trip_id].max);
+			   10, ktime_to_ms(trip_stats->duration),
+			   9, trip_stats->avg,
+			   9, trip_stats->min,
+			   9, trip_stats->max);
 	}
 
 	return 0;