diff options
| -rw-r--r-- | include/linux/reboot.h | 2 | ||||
| -rw-r--r-- | kernel/reboot.c | 13 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/reboot.h b/include/linux/reboot.h index b79f8942ea5f..99a9753e77bc 100644 --- a/include/linux/reboot.h +++ b/include/linux/reboot.h @@ -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. */ diff --git a/kernel/reboot.c b/kernel/reboot.c index 96f681f7b20c..892d25aa12df 100644 --- a/kernel/reboot.c +++ b/kernel/reboot.c @@ -505,6 +505,19 @@ static void do_kernel_power_off_prepare(void) } /** + * 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 * * Shutdown everything and perform a clean system power_off. |