Commit 2b6aa733 authored by Dmitry Osipenko's avatar Dmitry Osipenko Committed by Rafael J. Wysocki
Browse files

kernel/reboot: Add do_kernel_power_off() 



Add do_kernel_power_off() helper that will remove open-coded pm_power_off
invocations from the architecture code. This is the first step on the way
to remove the global pm_power_off variable, which will allow us to
implement consistent power-off chaining support.

Signed-off-by: default avatarDmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 7b9a3de9

include/linux/reboot.h

+2 −0
Original line number Diff line number Diff line
@@ -63,6 +63,8 @@ extern void machine_shutdown(void); 
struct pt_regs;

extern void machine_crash_shutdown(struct pt_regs *);



void do_kernel_power_off(void);



/*

 * sys-off handler API.

 */

kernel/reboot.c

+13 −0
Original line number Diff line number Diff line
@@ -504,6 +504,19 @@ static void do_kernel_power_off_prepare(void) 
	blocking_notifier_call_chain(&power_off_prep_handler_list, 0, NULL);

}



/**

 *	do_kernel_power_off - Execute kernel power-off handler call chain

 *

 *	Expected to be called as last step of the power-off sequence.

 *

 *	Powers off the system immediately if a power-off handler function has

 *	been registered. Otherwise does nothing.

 */

void do_kernel_power_off(void)

{

	atomic_notifier_call_chain(&power_off_handler_list, 0, NULL);

}



/**

 *	kernel_power_off - power_off the system

 *