kernel/linux.git/drivers/thermal/thermal_debugfs.c, branch v6.19.12

Merge branches 'thermal-core' and 'thermal-misc'

2025-03-24T13:09:38+00:00

Merge thermal core updates and miscellaneous updates of the thermal control subsystem for 6.15-rc1: - Delay exposing thermal zone sysfs interface to prevent user space from accessing thermal zones that have not been completely initialized yet (Lucas De Marchi). - Fix a spelling mistake in a comment in the thermal core (Colin Ian King). - Use kcalloc() instead of kzalloc() in some places in the thermal control subsystem (Lukasz Luba, Ethan Carter Edwards). - Clean up variable initialization in int340x_thermal_zone_add() (Christophe JAILLET). * thermal-core: thermal: core: Delay exposing sysfs interface thermal: core: Fix spelling mistake "Occurences" -> "Occurrences" * thermal-misc: thermal: intel: Clean up zone_trips[] initialization in int340x_thermal_zone_add() thermal: hisi: Use kcalloc() instead of kzalloc() with multiplication thermal: int340x: Use kcalloc() instead of kzalloc() with multiplication thermal: k3_j72xx_bandgap: Use kcalloc() instead of kzalloc() thermal/of: Use kcalloc() instead of kzalloc() with multiplication thermal/debugfs: replace kzalloc() with kcalloc() in thermal_debug_tz_add()

thermal: core: Fix spelling mistake "Occurences" -> "Occurrences"

2025-03-03T13:43:27+00:00

There is a spelling mistake in a seq_puts string. Fix it. Signed-off-by: Colin Ian King Link: https://patch.msgid.link/20250227224006.660164-1-colin.i.king@gmail.com Signed-off-by: Rafael J. Wysocki

thermal/debugfs: replace kzalloc() with kcalloc() in thermal_debug_tz_add()

2025-02-26T19:48:07+00:00

Work is under way to get rid of all multiplications from allocation functions to prevent integer overflows [1]. Here the multiplication is obviously safe, but using kcalloc() is more appropriate and improves readability. This change has no effect on runtime behavior. Link: https://github.com/KSPP/linux/issues/162 [1] Signed-off-by: Ethan Carter Edwards Link: https://patch.msgid.link/20250222-thermal_kcalloc-v1-1-9f7a747fbed7@ethancedwards.com [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki

thermal: core: Add and use cooling device guard

2024-10-24T12:48:23+00:00

Add and use a special guard for cooling devices. This allows quite a few error code paths to be simplified among other things and brings in code size reduction for a good measure. No intentional functional impact. Signed-off-by: Rafael J. Wysocki Link: https://patch.msgid.link/5837621.DvuYhMxLoT@rjwysocki.net Reviewed-by: Lukasz Luba

thermal: core: Add and use thermal zone guard

2024-10-23T09:56:19+00:00

Add and use a guard for thermal zone locking. This allows quite a few error code paths to be simplified among other things and brings in a noticeable code size reduction for a good measure. No intentional functional impact. Signed-off-by: Rafael J. Wysocki Link: https://patch.msgid.link/1930069.tdWV9SEqCh@rjwysocki.net Reviewed-by: Lukasz Luba

thermal/debugfs: Fix the NULL vs IS_ERR() confusion in debugfs_create_dir()

2024-08-21T18:38:44+00:00

The debugfs_create_dir() return value is never NULL, it is either a valid pointer or an error one. Use IS_ERR() to check it. Fixes: 7ef01f228c9f ("thermal/debugfs: Add thermal debugfs information for mitigation episodes") Fixes: 755113d76786 ("thermal/debugfs: Add thermal cooling device debugfs information") Signed-off-by: Yang Ruibin <11162571@vivo.com> Link: https://patch.msgid.link/20240821075934.12145-1-11162571@vivo.com [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki

thermal: trip: Use common set of trip type names

2024-06-11T19:04:40+00:00

Use the same set of trip type names in sysfs and in the thermal debug code output. No intentional functional impact. Signed-off-by: Rafael J. Wysocki Acked-by: Daniel Lezcano

thermal/debugfs: Move some statements from under thermal_dbg->lock

2024-06-11T19:04:34+00:00

The tz_dbg local variable assignments in thermal_debug_tz_trip_up(), thermal_debug_tz_trip_down(), and thermal_debug_update_trip_stats() need not be carried out under thermal_dbg->lock, so move them from under that lock (to avoid possible future confusion). While at it, reorder local variable definitions in thermal_debug_tz_trip_up() for more clarity. No functional impact. Signed-off-by: Rafael J. Wysocki Acked-by: Daniel Lezcano

thermal/debugfs: Compute maximum temperature for mitigation episode as a whole

2024-06-11T19:04:28+00:00

Notice that the maximum temperature above the trip point must be the same for all of the trip points involved in a given mitigation episode, so it need not be computerd for each of them separately. It is sufficient to compute the maximum temperature for the mitigation episode as a whole and print it accordingly, so do that. Signed-off-by: Rafael J. Wysocki Acked-by: Daniel Lezcano

thermal/debugfs: Adjust check for trips without statistics in tze_seq_show()

2024-06-11T19:04:21+00:00

Initialize the trip_temp field in struct trip_stats to THERMAL_TEMP_INVALID and adjust the check for trips without statistics in tze_seq_show() to look at that field instead of comparing min and max. This will mostly be useful to simplify subsequent changes. No intentional functional impact. Signed-off-by: Rafael J. Wysocki Acked-by: Daniel Lezcano