Andy Whitcroft 2ca3461b10 ACPI / resources: only reject zero length resources based at address zero ...

commit 867f9d463b upstream.

The recently merged change (in v3.14-rc6) to ACPI resource detection
(below) causes all zero length ACPI resources to be elided from the
table:

  commit b355cee88e
  Author: Zhang Rui <rui.zhang@intel.com>
  Date:   Thu Feb 27 11:37:15 2014 +0800

    ACPI / resources: ignore invalid ACPI device resources

This change has caused a regression in (at least) serial port detection
for a number of machines (see LP#1313981 [1]).  These seem to represent
their IO regions (presumably incorrectly) as a zero length region.
Reverting the above commit restores these serial devices.

Only elide zero length resources which lie at address 0.

Fixes: b355cee88e (ACPI / resources: ignore invalid ACPI device resources)
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2014-07-17 15:58:01 -07:00

..

acpica

ACPICA: utstring: Check array index bound before use.

2014-06-30 20:09:44 -07:00

apei

Merge branch 'acpi-fixes'

2013-06-07 12:35:23 +02:00

ac.c

ACPI / AC: Add sleep quirk for Thinkpad e530

2013-05-12 14:03:15 +02:00

acpi_cmos_rtc.c

ACPI: Add CMOS RTC Operation Region handler support

2013-07-21 18:21:28 -07:00

acpi_i2c.c

ACPI / I2C: Use parent's ACPI_HANDLE() in acpi_i2c_register_devices()

2013-04-02 15:30:41 +02:00

acpi_ipmi.c

ACPI / IPMI: Fix atomic context requirement of ipmi_msg_handler()

2013-10-13 16:08:34 -07:00

acpi_lpss.c

ACPI / LPSS: don't crash if a device has no MMIO resources

2013-09-26 17:18:05 -07:00

acpi_memhotplug.c

ACPI / memhotplug: Fix a stale pointer in error path

2013-08-04 16:51:02 +08:00

acpi_pad.c

ACPI / acpi_pad: Used PTR_RET

2013-03-25 00:13:15 +01:00

acpi_platform.c

ACPI / scan: Add special handler for Intel Lynxpoint LPSS devices

2013-03-21 22:44:38 +01:00

battery.c

ACPI / Battery: Add a _BIX quirk for NEC LZ750/LS

2014-01-15 15:28:53 -08:00

bgrt.c

efi: Fix the ACPI BGRT driver for images located in EFI boot services memory

2012-09-29 12:21:03 -07:00

blacklist.c

ACPI / blacklist: Add dmi_enable_osi_linux quirk for Asus EEE PC 1015PX

2014-06-07 13:25:39 -07:00

bus.c

ACPI: Fix conflict between customized DSDT and DSDT local copy

2014-06-30 20:09:44 -07:00

button.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-05-01 17:51:54 -07:00

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

Merge branch 'acpi-assorted'

2013-04-28 01:54:08 +02:00

custom_method.c

Merge tag 'modules-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2013-02-25 15:41:43 -08:00

debugfs.c

acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL

2011-10-31 19:30:34 -04:00

device_pm.c

ACPI / PM: Fix corner case in acpi_bus_update_power()

2013-07-21 18:21:29 -07:00

dock.c

ACPI / dock / PCI: Synchronous handling of dock events for PCI devices

2013-06-24 11:22:53 +02:00

ec_sys.c

simple_open: automatically convert to simple_open()

2012-04-05 15:25:50 -07:00

ec.c

ACPI / EC: Ensure lock is acquired before accessing ec struct members

2013-11-29 11:11:43 -08:00

event.c

acpi: add export.h to files using THIS_MODULE/EXPORT_SYMBOL

2011-10-31 19:30:34 -04:00

fan.c

ACPI / fan: avoid null pointer deference error

2013-03-25 23:01:00 +01:00

glue.c

ACPI: Try harder to resolve _ADR collisions for bridges

2013-08-29 09:47:29 -07:00

hed.c

ACPI: Remove useless type argument of driver .remove() operation

2013-01-26 00:37:24 +01:00

internal.h

ACPI: Add CMOS RTC Operation Region handler support

2013-07-21 18:21:28 -07:00

Kconfig

Merge branch 'acpi-assorted'

2013-04-28 01:54:08 +02:00

Makefile

ACPI: Add CMOS RTC Operation Region handler support

2013-07-21 18:21:28 -07:00

numa.c

x86, ACPI, mm: Revert movablemem_map support

2013-03-02 09:34:39 -08:00

nvs.c

ACPI / PM: print physical addresses consistently with other parts of kernel

2012-03-30 02:46:57 -04:00

osl.c

ACPI: Fix wrong parameter passed to memblock_reserve

2013-04-24 13:50:17 +02:00

pci_irq.c

ACPI / PCI: Fix memory leak in acpi_pci_irq_enable()

2014-03-06 21:30:09 -08:00

pci_link.c

ACPI: Set length even for TYPE_END_TAG acpi resource

2013-03-24 01:00:38 +01:00

pci_root.c

ACPI / hotplug: Fix conflicted PCI bridge notify handlers

2013-12-04 10:57:04 -08:00

pci_slot.c

PCI/ACPI: Handle PCI slot devices when creating/destroying PCI buses

2013-04-12 15:38:25 -06:00

power.c

ACPI / PM: Fix error code path for power resources initialization

2013-06-20 00:47:55 +02:00

proc.c

ACPI / PM: Walk physical_node_list under physical_node_lock

2013-08-14 22:59:07 -07:00

processor_core.c

ACPI / processor: Remove redundant NULL check before kfree

2013-03-04 14:23:39 +01:00

processor_driver.c

ACPI / PM: Move processor suspend/resume to syscore_ops

2013-05-12 14:03:14 +02:00

processor_idle.c

sched, idle: Fix the idle polling state logic

2013-11-29 11:11:42 -08:00

processor_perflib.c

acpi: Export the acpi_processor_get_performance_info

2013-03-06 10:00:34 -05:00

processor_thermal.c

ACPI / processor_thermal: avoid null pointer deference error

2013-03-25 23:01:01 +01:00

processor_throttling.c

ACPI / processor: Rework processor throttling with work_on_cpu()

2014-03-06 21:30:09 -08:00

reboot.c

Revert "ACPI: ignore FADT reset-reg-sup flag"

2012-04-20 11:19:35 -07:00

resource.c

ACPI / resources: only reject zero length resources based at address zero

2014-07-17 15:58:01 -07:00

sbs.c

proc: Supply a function to remove a proc entry by PDE

2013-05-01 17:29:46 -04:00

sbshc.c

ACPI: Remove useless type argument of driver .remove() operation

2013-01-26 00:37:24 +01:00

sbshc.h

ACPI: SBS: Ignore alarms coming from unknown devices

2007-12-14 15:14:06 -05:00

scan.c

ACPI / hotplug: Fix conflicted PCI bridge notify handlers

2013-12-04 10:57:04 -08:00

sleep.c

ACPI / sleep: Add extra checks for HW Reduced ACPI mode sleep states

2014-03-23 21:38:17 -07:00

sleep.h

ACPI: Drop power resources driver

2013-01-17 14:11:06 +01:00

sysfs.c

ACPI / hotplug: Make acpi_hotplug_profile_ktype static

2013-03-19 00:16:15 +01:00

tables.c

ACPICA: Cleanup table handler naming conflicts.

2013-01-11 13:10:16 +01:00

thermal.c

ACPI / thermal: do not always return THERMAL_TREND_RAISING for active trip points

2013-04-26 13:34:40 +02:00

utils.c

ACPI: Add acpi_handle_<level>() interfaces

2012-11-21 23:20:22 +01:00

video_detect.c

ACPI / video: Add "Asus UL30A" to ACPI video detect blacklist

2013-05-23 01:41:45 +02:00

video.c

ACPI / video: Filter the _BCL table for duplicate brightness values

2014-03-06 21:30:09 -08:00

wakeup.c

ACPI / Wakeup: Enable button GPEs unconditionally during initialization

2011-02-12 01:39:53 +01:00