[PATCH] PM: Fix dependencies of CONFIG_SUSPEND and CONFIG_HIBERNATION

From: Rafael J. Wysocki
Date: Fri Aug 03 2007 - 17:50:50 EST


From: Rafael J. Wysocki <rjw@xxxxxxx>

Dependencies of CONFIG_SUSPEND and CONFIG_HIBERNATION introduced by commit
296699de6bdc717189a331ab6bbe90e05c94db06 "Introduce CONFIG_SUSPEND for
suspend-to-Ram and standby" are incorrect, as they don't cover the facts that
(1) not all architectures support suspend and (2) SMP hibernation is only
possible on X86 and PPC64 (if PPC64_SWSUSP is set).

Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
---
kernel/power/Kconfig | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

Index: linux-2.6/kernel/power/Kconfig
===================================================================
--- linux-2.6.orig/kernel/power/Kconfig 2007-07-30 07:58:48.000000000 +0200
+++ linux-2.6/kernel/power/Kconfig 2007-08-03 23:29:57.000000000 +0200
@@ -74,7 +74,8 @@ config PM_TRACE

config SUSPEND_SMP_POSSIBLE
bool
- depends on (X86 && !X86_VOYAGER) || (PPC64 && (PPC_PSERIES || PPC_PMAC))
+ depends on (X86 && !X86_VOYAGER) \
+ || (PPC64 && (PPC_PSERIES || PPC_PMAC)) || ARM
depends on SMP
default y

@@ -92,7 +93,8 @@ config PM_SLEEP
config SUSPEND
bool "Suspend to RAM and standby"
depends on PM
- depends on !SMP || SUSPEND_SMP_POSSIBLE
+ depends on SUSPEND_SMP_POSSIBLE || ((BLACKFIN || MIPS || SUPERH || FRV \
+ || (PPC32 && PPC_MPC52xx)) && !SMP)
default y
---help---
Allow the system to enter sleep states in which main memory is
@@ -102,7 +104,8 @@ config SUSPEND
config HIBERNATION
bool "Hibernation (aka 'suspend to disk')"
depends on PM && SWAP
- depends on ((X86 || PPC64_SWSUSP || FRV || PPC32) && !SMP) || SUSPEND_SMP_POSSIBLE
+ depends on ((X86 || PPC64_SWSUSP || FRV || PPC32) && !SMP) \
+ || ((X86 || PPC64_SWSUSP) && SUSPEND_SMP_POSSIBLE)
---help---
Enable the suspend to disk (STD) functionality, which is usually
called "hibernation" in user interfaces. STD checkpoints the
-
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