• Richard Cochran's avatar
    thermal: x86_pkg_temp: Handle the FROZEN hot plug notifier actions. · 5af897e4
    Richard Cochran authored
    When performing a suspend operation, the kernel brings all of the
    non-boot CPUs offline, calling the hot plug notifiers with the flag,
    CPU_TASKS_FROZEN, set in the action code.  Similarly, during resume,
    the CPUs are brought back online, but again the notifiers have the
    FROZEN flag set.
    While some very few drivers really need to treat suspend/resume
    specially, this driver unintentionally ignores the notifications.
    This patch changes the driver to cancel its work item when the CPU
    goes down, even during a suspend operation.  As a result, the
    suspended state is no longer a special case.
    Cc: Zhang Rui <rui.zhang@intel.com>
    Cc: Eduardo Valentin <edubezval@gmail.com>
    Cc: linux-pm@vger.kernel.org
    Signed-off-by: default avatarRichard Cochran <rcochran@linutronix.de>
    Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
x86_pkg_temp_thermal.c 16.4 KB