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Subject[PATCH (2.6.25) 1/2] hibernation: clean up Kconfig
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This cleans up the hibernation Kconfig and removes the need to
declare centrally which architectures support hibernation. All
architectures that currently support hibernation are modified
accordingly.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Paul Mackerras <paulus@samba.org>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: linuxppc-dev@ozlabs.org
Cc: linux-pm@lists.linux-foundation.org
---
arch/i386/Kconfig | 4 ++++
arch/powerpc/Kconfig | 14 ++++++++++++--
arch/x86_64/Kconfig | 3 +++
kernel/power/Kconfig | 18 +++---------------
4 files changed, 22 insertions(+), 17 deletions(-)
--- everything.orig/arch/powerpc/Kconfig 2007-11-08 16:47:42.231537111 +0100
+++ everything/arch/powerpc/Kconfig 2007-11-08 17:17:04.151557021 +0100
@@ -140,9 +140,19 @@ config DEFAULT_UIMAGE
Used to allow a board to specify it wants a uImage built by default
default n

-config PPC64_SWSUSP
+config HIBERNATE_32
bool
- depends on PPC64 && (BROKEN || (PPC_PMAC64 && EXPERIMENTAL))
+ depends on (PPC_PMAC && !SMP) || BROKEN
+ default y
+
+config HIBERNATE_64
+ bool
+ depends on BROKEN || (PPC_PMAC64 && EXPERIMENTAL)
+ default y
+
+config ARCH_HIBERNATION_POSSIBLE
+ bool
+ depends on (PPC64 && HIBERNATE_64) || (PPC32 && HIBERNATE_32)
default y

config PPC_DCR_NATIVE
--- everything.orig/kernel/power/Kconfig 2007-11-08 16:47:42.411527399 +0100
+++ everything/kernel/power/Kconfig 2007-11-08 17:17:04.151557021 +0100
@@ -63,7 +63,8 @@ config PM_TRACE

config PM_SLEEP_SMP
bool
- depends on SUSPEND_SMP_POSSIBLE || HIBERNATION_SMP_POSSIBLE
+ depends on SMP
+ depends on SUSPEND_SMP_POSSIBLE || ARCH_HIBERNATION_POSSIBLE
depends on PM_SLEEP
select HOTPLUG_CPU
default y
@@ -97,22 +98,9 @@ config SUSPEND
powered and thus its contents are preserved, such as the
suspend-to-RAM state (i.e. the ACPI S3 state).

-config HIBERNATION_UP_POSSIBLE
- bool
- depends on X86 || PPC64_SWSUSP || PPC32
- depends on !SMP
- default y
-
-config HIBERNATION_SMP_POSSIBLE
- bool
- depends on (X86 && !X86_VOYAGER) || PPC64_SWSUSP
- depends on SMP
- default y
-
config HIBERNATION
bool "Hibernation (aka 'suspend to disk')"
- depends on PM && SWAP
- depends on HIBERNATION_UP_POSSIBLE || HIBERNATION_SMP_POSSIBLE
+ depends on PM && SWAP && ARCH_HIBERNATION_POSSIBLE
---help---
Enable the suspend to disk (STD) functionality, which is usually
called "hibernation" in user interfaces. STD checkpoints the
--- everything.orig/arch/i386/Kconfig 2007-11-08 16:47:42.301538141 +0100
+++ everything/arch/i386/Kconfig 2007-11-08 17:17:04.161529298 +0100
@@ -1319,3 +1319,7 @@ config X86_TRAMPOLINE
config KTIME_SCALAR
bool
default y
+
+config ARCH_HIBERNATION_POSSIBLE
+ def_bool y
+ depends on !SMP || !X86_VOYAGER
--- everything.orig/arch/x86_64/Kconfig 2007-11-08 16:47:42.371532987 +0100
+++ everything/arch/x86_64/Kconfig 2007-11-08 17:17:04.161529298 +0100
@@ -716,6 +716,9 @@ menu "Power management options"

source kernel/power/Kconfig

+config ARCH_HIBERNATION_POSSIBLE
+ def_bool y
+
config ARCH_HIBERNATION_HEADER
bool
depends on HIBERNATION

-
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