@@ -3,6 +3,8 @@
* Copyright (c) 2014 Red Hat, Inc., Mark Salter <msalter@redhat.com>
*/
#include <linux/efi.h>
+#include <linux/notifier.h>
+#include <linux/pm.h>
#include <linux/reboot.h>
int efi_reboot_quirk_mode = -1;
@@ -38,19 +40,32 @@ bool __weak efi_poweroff_required(void)
return false;
}
-static void efi_power_off(void)
+static int efi_power_off(struct notifier_block *this,
+ unsigned long unused1, void *unused2)
{
efi.reset_system(EFI_RESET_SHUTDOWN, EFI_SUCCESS, 0, NULL);
+
+ return NOTIFY_DONE;
}
+static struct notifier_block efi_power_off_nb = {
+ .notifier_call = efi_power_off,
+ .priority = POWER_OFF_PRIORITY_LOW,
+};
+
static int __init efi_shutdown_init(void)
{
+ int ret = 0;
+
if (!efi_enabled(EFI_RUNTIME_SERVICES))
return -ENODEV;
- if (efi_poweroff_required())
- pm_power_off = efi_power_off;
+ if (efi_poweroff_required()) {
+ ret = register_power_off_handler(&efi_power_off_nb);
+ if (ret)
+ pr_err("efi: Failed to register power-off handler\n");
+ }
- return 0;
+ return ret;
}
late_initcall(efi_shutdown_init);