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856b185dd2
linux/drivers/acpi
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Alex Chiang 856b185dd2 ACPI: processor: fix processor_physically_present on UP 
The commit 5d554a7bb0 (ACPI: processor: add internal
processor_physically_present()) is broken on uniprocessor (UP)
configurations, as acpi_get_cpuid() will always return -1.

We use the value of num_possible_cpus() to tell us whether we got
an invalid cpuid from acpi_get_cpuid() in the SMP case, or if
instead, we are UP, in which case num_possible_cpus() is #defined
as 1.

We use num_possible_cpus() instead of num_online_cpus() to
protect ourselves against the scenario of CPU hotplug, and we've
taken down all the CPUs except one.

Thanks to Jan Pogadl for initial report and analysis and Chen
Gong for review.

https://bugzilla.kernel.org/show_bug.cgi?id=16357

Reported-by: Jan Pogadl <pogadl.jan@googlemail.com>:
Reviewed-by: Chen Gong <gong.chen@linux.intel.com>
Signed-off-by: Alex Chiang <achiang@canonical.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-07-12 13:28:34 -04:00
..
acpica Merge branch 'acpica-cherry-pick' into release 2010-06-12 00:56:15 -04:00
apei correct console log level when ERST ACPI table is not found 2010-07-01 18:40:29 -07:00
ac.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
acpi_memhotplug.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
acpi_pad.c ACPI: acpi_pad: Don't needlessly mark LAPIC unstable 2010-06-04 03:48:10 -04:00
atomicio.c acpi: update gfp/slab.h includes 2010-06-28 10:19:19 +10:00
battery.c Merge branches 'battery', 'bugzilla-14667', 'bugzilla-15096', 'bugzilla-15480', 'bugzilla-15521', 'bugzilla-15605', 'gpe-reference-counters', 'misc', 'pxm-fix' and 'video-random-key' into release 2010-04-06 17:06:22 -04:00
blacklist.c ACPI: Disable Vista compatibility for Sony VGN-NS50B_L 2010-06-10 11:31:03 -04:00
bus.c drivers: acpi: don't use own implementation of hex_to_bin() 2010-05-25 08:07:06 -07:00
button.c ACPI / PM: Do not enable GPEs for system wakeup in advance 2010-06-17 12:18:09 -04:00
cm_sbs.c ACPI: Move definition of PREFIX from acpi_bus.h to internal..h 2009-08-28 19:57:27 -04:00
container.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
debug.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dock.c Merge branches 'battery', 'bugzilla-14667', 'bugzilla-15096', 'bugzilla-15480', 'bugzilla-15521', 'bugzilla-15605', 'gpe-reference-counters', 'misc', 'pxm-fix' and 'video-random-key' into release 2010-04-06 17:06:22 -04:00
ec.c Merge branches 'bugzilla-14668' and 'misc-2.6.35' into release 2010-06-01 22:53:36 -04:00
event.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fan.c ACPI: fan: fix unbalanced code block 2010-06-10 11:24:51 -04:00
glue.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
hed.c ACPI Hardware Error Device (PNP0C33) support 2010-05-19 22:40:24 -04:00
internal.h ACPI / EC / PM: Fix names of functions that block/unblock EC transactions 2010-05-28 23:36:06 -04:00
Kconfig ACPI Hardware Error Device (PNP0C33) support 2010-05-19 22:40:24 -04:00
Makefile ACPI Hardware Error Device (PNP0C33) support 2010-05-19 22:40:24 -04:00
numa.c ACPI: NUMA: map pxms to low node ids 2010-04-04 00:50:01 -04:00
osl.c hwmon: (asus_atk0110) Don't load if ACPI resources aren't enforced 2010-05-27 19:58:37 +02:00
pci_bind.c PCI / ACPI / PM: Platform support for PCI PME wake-up 2010-02-22 16:21:02 -08:00
pci_irq.c x86, acpi/irq: pci device dev->irq is an isa irq not a gsi 2010-05-04 13:34:30 -07:00
pci_link.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pci_root.c Merge branch 'bjorn-pci-root-v4-2.6.35' into release 2010-05-28 16:17:16 -04:00
pci_slot.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
power_meter.c power_meter: acpi_device_class "power_meter_resource" too long 2010-05-06 02:38:24 -04:00
power.c Merge branch 'master' into for-next 2010-04-23 02:08:44 +02:00
proc.c Fix misspellings of "separate" in strings. 2010-02-04 11:55:46 +01:00
processor_core.c ACPI: processor: fix processor_physically_present on UP 2010-07-12 13:28:34 -04:00
processor_driver.c ACPI: Do not try to set up acpi processor stuff on cores exceeding maxcpus= 2010-06-09 18:04:12 -04:00
processor_idle.c ACPI: Eliminate us to pm ticks conversion in common path 2010-06-04 15:22:28 -04:00
processor_perflib.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
processor_thermal.c ACPI: Remove unnecessary cast. 2010-01-15 23:06:44 -05:00
processor_throttling.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
reboot.c
sbs.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sbshc.c sbshc: acpi_device_class "smbus_host_controller" too long 2010-05-06 02:38:25 -04:00
sbshc.h
scan.c ACPICA: Minimize the differences between linux GPE code and ACPICA code base 2010-04-20 10:43:16 -04:00
sleep.c Merge branch 'bugzilla-13931-sleep-nvs' into release 2010-06-12 01:15:40 -04:00
sleep.h drivers/acpi/sleep.h: Checkpatch cleanup 2010-05-28 15:31:33 -04:00
system.c Merge branch 'gpe-regression-fixes' into release 2010-06-12 00:51:49 -04:00
tables.c ACPI: delete the "acpi=ht" boot option 2010-03-14 20:58:38 -04:00
thermal.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
utils.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
video_detect.c ACPI: video: fix acpi_backlight=video 2010-05-20 01:31:00 -04:00
video.c Merge branch 'misc-2.6.35' into release 2010-05-28 16:18:20 -04:00
wakeup.c ACPI / PM: Do not enable GPEs for system wakeup in advance 2010-06-17 12:18:09 -04:00