linux/drivers/thermal/intel
Rafael J. Wysocki 8418c1672c thermal: intel_powerclamp: Use first online CPU as control_cpu
commit 4bb7f6c278 upstream.

Commit 68b99e94a4 ("thermal: intel_powerclamp: Use get_cpu() instead
of smp_processor_id() to avoid crash") fixed an issue related to using
smp_processor_id() in preemptible context by replacing it with a pair
of get_cpu()/put_cpu(), but what is needed there really is any online
CPU and not necessarily the one currently running the code.  Arguably,
getting the one that's running the code in there is confusing.

For this reason, simply give the control CPU role to the first online
one which automatically will be CPU0 if it is online, so one check
can be dropped from the code for an added benefit.

Link: https://lore.kernel.org/linux-pm/20221011113646.GA12080@duo.ucw.cz/
Fixes: 68b99e94a4 ("thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2022-10-26 12:35:56 +02:00
..
int340x_thermal thermal: int340x: Fix attr.show callback prototype 2022-05-09 09:14:42 +02:00
intel_bxt_pmic_thermal.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
intel_menlow.c thermal/drivers/intel: Move intel_menlow to thermal drivers 2021-08-17 14:11:48 +02:00
intel_pch_thermal.c thermal: intel: pch: Fix unexpected shutdown at critical temperature 2021-01-19 22:30:25 +01:00
intel_powerclamp.c thermal: intel_powerclamp: Use first online CPU as control_cpu 2022-10-26 12:35:56 +02:00
intel_quark_dts_thermal.c thermal: Rename set_mode() to change_mode() 2020-06-29 20:26:39 +02:00
intel_soc_dts_iosf.c thermal/drivers/intel/intel_soc_dts_iosf: Switch to use find_first_zero_bit() 2021-07-04 18:28:04 +02:00
intel_soc_dts_iosf.h thermal: intel: intel_soc_dts_iosf: Utilize for_each_set_clump8 macro 2019-12-04 19:44:12 -08:00
intel_soc_dts_thermal.c thermal: Convert to new X86 CPU match macros 2020-03-24 21:33:53 +01:00
intel_tcc_cooling.c drivers/thermal/intel: Add TCC cooling support for AlderLake platform 2021-08-14 12:41:36 +02:00
Kconfig thermal/drivers/intel: Move intel_menlow to thermal drivers 2021-08-17 14:11:48 +02:00
Makefile thermal/drivers/intel: Move intel_menlow to thermal drivers 2021-08-17 14:11:48 +02:00
therm_throt.c thermal/drivers/intel: Allow processing of HWP interrupt 2021-09-09 16:33:20 +02:00
thermal_interrupt.h thermal/drivers/intel: Allow processing of HWP interrupt 2021-09-09 16:33:20 +02:00
x86_pkg_temp_thermal.c thermal/drivers/intel: Initialize RW trip to THERMAL_TEMP_INVALID 2021-05-14 09:37:27 +02:00