kernel/linux.git/drivers/thermal/testing, branch v6.12.98

thermal: testing: zone: Flush work items during cleanup

2026-07-24T14:11:16+00:00

[ Upstream commit fb1a5dfe86d3af1e1c3ce168cf0d8d43897e0f77 ] To prevent freed module code from being executed during the thermal testing module unload, make it add a dedicated workqueue for thermal testing work items and flush it in thermal_testing_exit(). Fixes: f6a034f2df42 ("thermal: Introduce a debugfs-based testing facility") Link: https://sashiko.dev/#/patchset/20260605185212.2491144-1-sam.moelius%40trailofbits.com Signed-off-by: Rafael J. Wysocki Link: https://patch.msgid.link/1959388.tdWV9SEqCh@rafael.j.wysocki [ rjw: Make variable d_command static ] Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

thermal: testing: reject missing command arguments

2026-07-24T14:10:56+00:00

[ Upstream commit ef3e98b0aa4b348f44065d7130251273c83bd204 ] The thermal testing debugfs command parser splits commands at ':' and passes the right-hand side to the command implementation. Commands such as deltz, tzaddtrip, tzreg, and tzunreg require a zone id, but writing one of those command names without ':' leaves the argument pointer NULL. The command implementations parse the id with sscanf(arg, "%d", ...), so the missing-argument form dereferences a NULL pointer from the debugfs write path. Reject missing arguments in tt_command_exec() before calling handlers that require an id. Fixes: f6a034f2df42 ("thermal: Introduce a debugfs-based testing facility") Assisted-by: Codex:gpt-5.5-cyber-preview Signed-off-by: Samuel Moelius Link: https://patch.msgid.link/20260605185212.2491144-1-sam.moelius@trailofbits.com Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin

thermal: testing: Initialize some variables annoteded with _free()

2024-12-05T13:01:20+00:00

[ Upstream commit 0104dcdaad3a7afd141e79a5fb817a92ada910ac ] Variables annotated with __free() need to be initialized if the function can return before they get updated for the first time or the attempt to free the memory pointed to by them upon function return may crash the kernel. Fix this issue in some places in the thermal testing code. Fixes: f6a034f2df42 ("thermal: Introduce a debugfs-based testing facility") Reported-by: Dan Carpenter Signed-off-by: Rafael J. Wysocki Link: https://patch.msgid.link/12576267.O9o76ZdvQC@rjwysocki.net Signed-off-by: Sasha Levin

thermal: testing: Use DEFINE_FREE() and __free() to simplify code

2024-12-05T13:01:20+00:00

[ Upstream commit 1c426fd09ca85fb77f120f7933e39eb9df99a39a ] Use DEFINE_FREE() to define a __free function for dropping thermal zone template reference counters and use it along with __free() to simplify code in some places. No intentional functional impact. Signed-off-by: Rafael J. Wysocki Link: https://patch.msgid.link/4628747.LvFx2qVVIh@rjwysocki.net [ rjw: Add variable initialization to address compiler warning ] Signed-off-by: Rafael J. Wysocki Stable-dep-of: 0104dcdaad3a ("thermal: testing: Initialize some variables annoteded with _free()") Signed-off-by: Sasha Levin

thermal: Introduce a debugfs-based testing facility

2024-08-22T15:42:57+00:00

Introduce a facility allowing the thermal core functionality to be exercised in a controlled way in order to verify its behavior, without affecting its regular users noticeably. It is based on the idea of preparing thermal zone templates along with their trip points by writing to files in debugfs. When ready, those templates can be used for registering test thermal zones with the thermal core. The temperature of a test thermal zone created this way can be adjusted via debugfs, which also triggers a __thermal_zone_device_update() call for it. By manipulating the temperature of a test thermal zone, one can check if the thermal core reacts to the changes of it as expected. Signed-off-by: Rafael J. Wysocki Link: https://patch.msgid.link/6065927.lOV4Wx5bFT@rjwysocki.net [ rjw: Fixed ordering of kcalloc() arguments ] [ rjw: Fixed debugfs_create_dir() return value checks ] [ rjw: Fixed two kerneldoc comments ] Signed-off-by: Rafael J. Wysocki