[RFC][PATCH 1/2] ACPI: Do not prepare for hibernation in acpi_shutdown

["Rafael J. Wysocki" <rjw@sisk.pl>]

From: Rafael J. Wysocki <rjw@sisk.pl>

Since we are now explicitly calling hibernation_ops->prepare() before
hibernation_ops->enter() in hibernation_platform_enter() (defined in
kernel/power/disk.c), ACPI should not call acpi_sleep_prepare(ACPI_STATE_S4)
from acpi_shutdown().

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
 drivers/acpi/sleep/poweroff.c |    3 ---
 1 file changed, 3 deletions(-)

Index: linux-2.6.22-rc6/drivers/acpi/sleep/poweroff.c
===================================================================
--- linux-2.6.22-rc6.orig/drivers/acpi/sleep/poweroff.c	2007-07-01 15:08:54.000000000 +0200
+++ linux-2.6.22-rc6/drivers/acpi/sleep/poweroff.c	2007-07-01 15:10:07.000000000 +0200
@@ -54,9 +54,6 @@ static int acpi_shutdown(struct sys_devi
 	case SYSTEM_POWER_OFF:
 		/* Prepare to power off the system */
 		return acpi_sleep_prepare(ACPI_STATE_S5);
-	case SYSTEM_SUSPEND_DISK:
-		/* Prepare to suspend the system to disk */
-		return acpi_sleep_prepare(ACPI_STATE_S4);
 	default:
 		return 0;
 	}