Commit 7c3d5c20dc16 ("thermal/core: Add a generic thermal_zone_get_trip() function") stopped marking trip points with a zero temperature as disabled, behavior that was originally introduced in commit 81ad4276b505 ("Thermal: Ignore invalid trip points"). When using the mlxsw driver we see that when such trip points are not disabled, the thermal subsystem repeatedly tries to set the state of the associated cooling devices to the maximum state. Address this by restoring the original behavior and mark trip points with a zero temperature as disabled.
Unified · Split
| @@ -1309,7 +1309,7 @@ thermal_zone_device_register_with_trips(const char *type, struct thermal_trip *t · 1308 unmodified lines | |||
| 1309 | struct thermal_trip trip; | 1309 | struct thermal_trip trip; |
| 1310 | 1310 | ||
| 1311 | result = thermal_zone_get_trip(tz, count, &trip); | 1311 | result = thermal_zone_get_trip(tz, count, &trip); |
| 1312 | if (result) | 1312 | if (result || !trip.temperature) |
| 1313 | set_bit(count, &tz->trips_disabled); | 1313 | set_bit(count, &tz->trips_disabled); |
| 1314 | } | 1314 | } |
| 1315 | 1315 | ||