linux-kernel - [RFC PATCH 2/2] kernel: power: Drop pm_poweroff

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Message-Id: <1413062057-11657-3-git-send-email-linux@roeck-us.net>
Date:	Sat, 11 Oct 2014 14:14:17 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	linux-kernel@...r.kernel.org
Cc:	linux-pm@...r.kernel.org, "Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <len.brown@...el.com>, Pavel Machek <pavel@....cz>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Guenter Roeck <linux@...ck-us.net>
Subject: [RFC PATCH 2/2] kernel: power: Drop pm_poweroff_prepare

The only user of pm_poweroff_prepare was acpi, which has been converted to use
a syscore callback. Drop pm_poweroff_prepare as it is no longer necessary.

Cc: Rafael J. Wysocki <rjw@...ysocki.net>
Cc: Len Brown <len.brown@...el.com>
Cc: Pavel Machek <pavel@....cz>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
 include/linux/pm.h | 1 -
 kernel/reboot.c    | 8 --------
 2 files changed, 9 deletions(-)

diff --git a/include/linux/pm.h b/include/linux/pm.h
index 383fd68..333506e 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -32,7 +32,6 @@
  * Callbacks for platform drivers to implement.
  */
 extern void (*pm_power_off)(void);
-extern void (*pm_power_off_prepare)(void);
 
 struct device; /* we have a circular dep with device.h */
 #ifdef CONFIG_VT_CONSOLE_SLEEP
diff --git a/kernel/reboot.c b/kernel/reboot.c
index 5925f5a..5ad4f0b 100644
--- a/kernel/reboot.c
+++ b/kernel/reboot.c
@@ -44,12 +44,6 @@ int reboot_cpu;
 enum reboot_type reboot_type = BOOT_ACPI;
 int reboot_force;
 
-/*
- * If set, this is used for preparing the system to power off.
- */
-
-void (*pm_power_off_prepare)(void);
-
 /**
  *	emergency_restart - reboot the system
  *
@@ -257,8 +251,6 @@ EXPORT_SYMBOL_GPL(kernel_halt);
 void kernel_power_off(void)
 {
 	kernel_shutdown_prepare(SYSTEM_POWER_OFF);
-	if (pm_power_off_prepare)
-		pm_power_off_prepare();
 	migrate_to_reboot_cpu();
 	syscore_shutdown();
 	pr_emerg("Power down\n");
-- 
1.9.1

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