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 <rafael.j.wysocki@intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>

diff --git a/drivers/thermal/thermal_debugfs.c b/drivers/thermal/thermal_debugfs.c
index 357cd5f2de64d8d0943015934aab31e5d8193097..d9f33df2ad2d1c7c58e52da7332b819f983080fe 100644 (file)
--- a/drivers/thermal/thermal_debugfs.c
+++ b/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
@@ -763,6 +768,13 @@ 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)
@@ -770,17 +782,15 @@ static int tze_seq_show(struct seq_file *s, void *v)
                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;