From 5d1e072b6b9cffebefa681faca1c6d608310d4b2 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 22 Oct 2008 14:58:43 -0400 Subject: [PATCH] ACPI suspend: Fix CONFIG_ACPI_SLEEP dependence and some compilation warnings Initially CONFIG_PM_SLEEP was defined as CONFIG_SUSPEND || CONFIG_HIBERNATION and some ACPI code, most importantly the code in drivers/acpi/main.c, was written with this assumption. Currently, however, CONFIG_PM_SLEEP is also set when CONFIG_XEN_SAVE_RESTORE is set. This causes some compilation warnings to appear in drivers/acpi/main.c if both CONFIG_SUSPEND and CONFIG_HIBERNATION are unset and CONFIG_PM_SLEEP is set (this was impossible before). To fix this problem, redefine CONFIG_ACPI_SLEEP do depend directly on CONFIG_SUSPEND || CONFIG_HIBERNATION, as originally intended, and use it instead of CONFIG_PM_SLEEP in drivers/acpi/main.c, wherever appropriate. Additionally, move the acpi_target_sleep_state definition from under the #ifdef to prevent compilation from failing in some cases. Signed-off-by: Rafael J. Wysocki Signed-off-by: Len Brown --- drivers/acpi/Kconfig | 2 +- drivers/acpi/sleep/main.c | 7 +++---- 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 79540db29808..325b4b5fa7df 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -42,7 +42,7 @@ if ACPI config ACPI_SLEEP bool - depends on PM_SLEEP + depends on SUSPEND || HIBERNATION default y config ACPI_PROCFS diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index d13194a031bf..4c21480b5820 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -23,6 +23,7 @@ #include "sleep.h" u8 sleep_states[ACPI_S_STATE_COUNT]; +static u32 acpi_target_sleep_state = ACPI_STATE_S0; static int acpi_sleep_prepare(u32 acpi_state) { @@ -45,9 +46,7 @@ static int acpi_sleep_prepare(u32 acpi_state) return 0; } -#ifdef CONFIG_PM_SLEEP -static u32 acpi_target_sleep_state = ACPI_STATE_S0; - +#ifdef CONFIG_ACPI_SLEEP /* * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the * user to request that behavior by using the 'acpi_old_suspend_ordering' @@ -132,7 +131,7 @@ static void acpi_pm_end(void) */ acpi_target_sleep_state = ACPI_STATE_S0; } -#endif /* CONFIG_PM_SLEEP */ +#endif /* CONFIG_ACPI_SLEEP */ #ifdef CONFIG_SUSPEND extern void do_suspend_lowlevel(void); -- 2.20.1