[RFC][PATCH 7/7] ACPI: Print message before calling _PTS

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

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

Make acpi_sleep_prepare() static and cause it to print a message
specifying the ACPI system sleep state to be entered (helpful for
debugging the suspend/hibernation code).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@suse.cz>
---
 drivers/acpi/sleep/main.c  |    4 +++-
 drivers/acpi/sleep/sleep.h |    2 --
 2 files changed, 3 insertions(+), 3 deletions(-)

Index: linux-2.6/drivers/acpi/sleep/main.c
===================================================================
--- linux-2.6.orig/drivers/acpi/sleep/main.c
+++ linux-2.6/drivers/acpi/sleep/main.c
@@ -43,7 +43,7 @@ static int __init acpi_new_pts_ordering(
 __setup("acpi_new_pts_ordering", acpi_new_pts_ordering);
 #endif
 
-int acpi_sleep_prepare(u32 acpi_state)
+static int acpi_sleep_prepare(u32 acpi_state)
 {
 #ifdef CONFIG_ACPI_SLEEP
 	/* do we have a wakeup address for S2 and S3? */
@@ -59,6 +59,8 @@ int acpi_sleep_prepare(u32 acpi_state)
 	ACPI_FLUSH_CPU_CACHE();
 	acpi_enable_wakeup_device_prep(acpi_state);
 #endif
+	printk(KERN_INFO PREFIX "Preparing to enter system sleep state S%d\n",
+		acpi_state);
 	acpi_enter_sleep_state_prep(acpi_state);
 	return 0;
 }
Index: linux-2.6/drivers/acpi/sleep/sleep.h
===================================================================
--- linux-2.6.orig/drivers/acpi/sleep/sleep.h
+++ linux-2.6/drivers/acpi/sleep/sleep.h
@@ -5,5 +5,3 @@ extern int acpi_suspend (u32 state);
 extern void acpi_enable_wakeup_device_prep(u8 sleep_state);
 extern void acpi_enable_wakeup_device(u8 sleep_state);
 extern void acpi_disable_wakeup_device(u8 sleep_state);
-
-extern int acpi_sleep_prepare(u32 acpi_state);