OSDN Git Service

ACPI: processor: thermal: Update CPU cooling devices on cpufreq policy changes
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>
Fri, 17 Mar 2023 17:03:40 +0000 (18:03 +0100)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Wed, 22 Mar 2023 14:20:38 +0000 (15:20 +0100)
commit22c52fa5155a2f48aedb0f675903b20457285a27
treec0d2dfd9154f69dd0a6ccf2c3bac595712c6c41f
parent790930f44289c8209c57461b2db499fcc702e0b3
ACPI: processor: thermal: Update CPU cooling devices on cpufreq policy changes

When a cpufreq policy appears or goes away, the CPU cooling devices for
the CPUs covered by that policy need to be updated so that the new
processor_get_max_state() value is stored as max_state and the
statistics in sysfs are rearranged for each of them.

Do that accordingly in acpi_thermal_cpufreq_init() and
acpi_thermal_cpufreq_exit().

Fixes: a365105c685c("thermal: sysfs: Reuse cdev->max_state")
Reported-by: Wang, Quanxian <quanxian.wang@intel.com>
Link: https://lore.kernel.org/linux-pm/53ec1f06f61c984100868926f282647e57ecfb2d.camel@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
drivers/acpi/processor_thermal.c