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Shaohua Li bdfe6b7c68 pm: acpi hibernation: utilize hardware signature 
ACPI defines a hardware signature.  BIOS calculates the signature according to
hardware configure and if hardware changes while hibernated, the signature
will change.  In that case, S4 resume should fail.

Still, there may be systems on which this mechanism does not work correctly,
so it is better to provide a workaround for them.  For this reason, add a new
switch to the acpi_sleep= command line argument allowing one to disable
hardware signature checking.

[shaohua.li@intel.com: build fix]
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Len Brown <lenb@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: <Valdis.Kletnieks@vt.edu>
Cc: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2008-07-24 10:47:24 -07:00
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accessibility
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acpi pm: acpi hibernation: utilize hardware signature 2008-07-24 10:47:24 -07:00
amba
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ata
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atm Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 2008-07-18 02:39:39 -07:00
auxdisplay
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base memory-hotplug: add sysfs removable attribute for hotplug memory remove 2008-07-24 10:47:21 -07:00
block device create: block: convert device_create to device_create_drvdata 2008-07-21 21:54:41 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-07-20 17:43:29 -07:00
cdrom
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char PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
clocksource
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connector
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cpufreq Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-07-23 18:37:44 -07:00
cpuidle sysdev: Pass the attribute to the low level sysdev show/store function 2008-07-21 21:55:02 -07:00
crypto
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dca Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx 2008-07-23 12:03:18 -07:00
dio dio: use dio_match_device() in dio_bus_match() 2008-07-20 17:24:40 -07:00
dma I/OAT: I/OAT version 3.0 support 2008-07-22 17:30:57 -07:00
edac powerpc/cell/edac: Log a syndrome code in case of correctable error 2008-07-22 10:39:36 +10:00
eisa driver core: remove DEVICE_NAME_SIZE define 2008-07-21 21:54:53 -07:00
firewire
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firmware cpumask: Replace cpumask_of_cpu with cpumask_of_cpu_ptr 2008-07-18 22:02:57 +02:00
gpio gpio: pcf857x: add lock and handle more chips 2008-07-22 09:59:41 -07:00
gpu
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hid Merge branches 'upstream' and 'upstream-fixes' into for-linus 2008-07-23 15:26:10 +02:00
hwmon device create: hwmon: convert device_create to device_create_drvdata 2008-07-21 21:54:42 -07:00
i2c Driver Core: add ability for class_for_each_device to start in middle of list 2008-07-21 21:54:47 -07:00
ide ide: small whitespace fixes 2008-07-23 19:56:02 +02:00
ieee1394 PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
infiniband Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-07-23 18:37:44 -07:00
input Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-07-23 18:24:08 -07:00
isdn gigaset: gigaset_isowbuf_getbytes() may return signed unnoticed 2008-07-24 10:47:22 -07:00
leds
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lguest
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macintosh device create: macintosh: convert device_create to device_create_drvdata 2008-07-21 21:54:43 -07:00
mca driver core: remove DEVICE_NAME_SIZE define 2008-07-21 21:54:53 -07:00
md Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm 2008-07-21 10:30:10 -07:00
media PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
memstick driver core: remove DEVICE_ID_SIZE define 2008-07-21 21:54:53 -07:00
message driver core: remove KOBJ_NAME_LEN define 2008-07-21 21:54:52 -07:00
mfd Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-07-23 18:24:08 -07:00
misc Merge branch 'cpus4096-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-07-23 18:37:44 -07:00
mmc sdhci: highmem capable PIO routines 2008-07-23 14:42:09 +02:00
mtd PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
net PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
nubus
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of
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oprofile
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parisc
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parport
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pci driver core: remove KOBJ_NAME_LEN define 2008-07-21 21:54:52 -07:00
pcmcia PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
pnp PNPACPI: add support for HP vendor-specific CCSR descriptors 2008-07-16 23:27:07 +02:00
power Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-07-23 18:24:08 -07:00
ps3
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rapidio
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rtc Driver Core: add ability for class_find_device to start in middle of list 2008-07-21 21:54:47 -07:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-07-22 19:09:51 -07:00
sbus sparc64: fix up bus_id changes in sparc core code 2008-07-21 21:55:03 -07:00
scsi PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
serial kgdb: kgdboc console poll hooks for mpsc uart 2008-07-23 11:30:16 -05:00
sh
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sn
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spi Driver Core: add ability for class_find_device to start in middle of list 2008-07-21 21:54:47 -07:00
ssb
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tc
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telephony
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thermal
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uio UIO: add generic UIO platform driver 2008-07-21 21:54:55 -07:00
usb Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2008-07-23 18:24:08 -07:00
video PAGE_ALIGN(): correctly handle 64-bit values on 32-bit architectures 2008-07-24 10:47:21 -07:00
virtio
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w1 w1/ds2482: Convert to a new-style driver 2008-07-16 19:30:07 +02:00
watchdog
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xen sysdev: Pass the attribute to the low level sysdev show/store function 2008-07-21 21:55:02 -07:00
zorro move memory_read_from_buffer() from fs.h to string.h 2008-07-24 10:47:13 -07:00
Kconfig
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Makefile gpu: re-order GPU subdirectory vs char for AGP vs DRM startup. 2008-07-21 08:42:49 +10:00