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Erik Kaneda 57645ea316 ACPICA: Do not increment operation_region reference counts for field units 
[ Upstream commit 6a54ebae6d ]

ACPICA commit e17b28cfcc31918d0db9547b6b274b09c413eb70

Object reference counts are used as a part of ACPICA's garbage
collection mechanism. This mechanism keeps track of references to
heap-allocated structures such as the ACPI operand objects.

Recent server firmware has revealed that this reference count can
overflow on large servers that declare many field units under the
same operation_region. This occurs because each field unit declaration
will add a reference count to the source operation_region.

This change solves the reference count overflow for operation_regions
objects by preventing fieldunits from incrementing their
operation_region's reference count. Each operation_region's reference
count will not be changed by named objects declared under the Field
operator. During namespace deletion, the operation_region namespace
node will be deleted and each fieldunit will be deleted without
touching the deleted operation_region object.

Link: https://github.com/acpica/acpica/commit/e17b28cf
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-08-21 09:48:06 +02:00
..
acpica ACPICA: Do not increment operation_region reference counts for field units 2020-08-21 09:48:06 +02:00
apei x86/mm: split vmalloc_sync_all() 2020-04-02 16:34:20 +02:00
arm64 ACPI/IORT: Fix off-by-one check in iort_dev_find_its_id() 2019-08-16 10:13:54 +02:00
dptf License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfit acpi/nfit: Fix bus command validation 2020-04-13 10:34:36 +02:00
pmic ACPI / PMIC: xpower: Fix TS-pin current-source handling 2019-01-16 22:07:12 +01:00
x86 x86/cpu: Sanitize FAM6_ATOM naming 2019-05-14 19:18:42 +02:00
ac.c
acpi_amba.c
acpi_apd.c ACPI: APD: Fix HID for Hisilicon Hip07/08 2017-07-30 14:33:48 +02:00
acpi_cmos_rtc.c
acpi_configfs.c ACPI: configfs: Unload SSDT on configfs entry removal 2017-06-22 02:43:12 +02:00
acpi_dbg.c ACPI: fix whitespace in pr_fmt() to align log entries 2017-06-22 02:18:20 +02:00
acpi_extlog.c ACPI: Switch to use generic guid_t in acpi_evaluate_dsm() 2017-06-07 12:20:49 +02:00
acpi_ipmi.c
acpi_lpat.c ACPI / lpat: Fix typos in comments and kerneldoc style 2017-07-24 22:52:00 +02:00
acpi_lpss.c ACPI / LPSS: Ignore acpi_device_fix_up_power() return value 2019-12-05 15:37:15 +01:00
acpi_memhotplug.c mm/memory_hotplug: make add_memory() take the device_hotplug_lock 2019-12-01 09:13:57 +01:00
acpi_pad.c ACPI: acpi_pad: Fix memory leak in power saving threads 2018-05-30 07:52:27 +02:00
acpi_platform.c ACPI / platform: Add SMB0001 HID to forbidden_id_list 2018-11-27 16:10:51 +01:00
acpi_pnp.c
acpi_processor.c ACPI / processor: don't print errors for processorIDs == 0xff 2019-10-05 12:47:49 +02:00
acpi_video.c ACPI: video: Add new hw_changes_brightness quirk, set it on PB Easynote MZ35 2019-10-05 12:47:38 +02:00
acpi_watchdog.c ACPI: watchdog: Allow disabling WDAT at boot 2020-03-20 10:54:23 +01:00
battery.c ACPI: make device_attribute const 2017-08-24 03:38:25 +02:00
battery.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
bgrt.c ACPI: BGRT: constify attribute_group structures 2017-07-04 22:15:20 +02:00
blacklist.c ACPI: blacklist: fix clang warning for unused DMI table 2019-08-06 19:05:22 +02:00
bus.c ACPI: bus: Fix NULL pointer check in acpi_bus_get_private_data() 2019-12-17 20:39:36 +01:00
button.c ACPI / button: make module loadable when booted in non-ACPI mode 2018-05-09 09:51:49 +02:00
cm_sbs.c
container.c
cppc_acpi.c ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe() 2020-06-20 10:25:01 +02:00
custom_method.c ACPI: custom_method: fix memory leaks 2019-10-05 12:47:59 +02:00
debugfs.c
device_pm.c ACPI: PM: Avoid using power resources if there are none for D0 2020-06-20 10:25:01 +02:00
device_sysfs.c ACPI / device_sysfs: Avoid OF modalias creation for removed device 2019-03-23 14:35:19 +01:00
dock.c ACPI / dock: constify attribute_group structure 2017-08-03 23:28:24 +02:00
ec.c Revert "ACPI / EC: Remove old CLEAR_ON_RESUME quirk" 2019-04-20 09:15:06 +02:00
ec_sys.c ACPI: EC: Fix debugfs_create_*() usage 2018-04-12 12:32:15 +02:00
event.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
evged.c ACPI: GED: use correct trigger type field in _Exx / _Lxx handling 2020-06-20 10:25:06 +02:00
fan.c
glue.c IOMMU Updates for Linux v4.12 2017-05-09 15:15:47 -07:00
hed.c
internal.h ACPI: EC: Fix debugfs_create_*() usage 2018-04-12 12:32:15 +02:00
ioapic.c ACPI: fix whitespace in pr_fmt() to align log entries 2017-06-22 02:18:20 +02:00
irq.c ACPI / irq: Fix return code of acpi_gsi_to_irq() 2017-07-12 13:11:49 +02:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
numa.c ACPI: NUMA: Use correct type for printing addresses on i386-PAE 2019-02-20 10:20:48 +01:00
nvs.c
osi.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
osl.c ACPI: OSL: only free map once in osl.c 2019-12-17 20:39:36 +01:00
pci_irq.c ACPI / PCI: fix acpi_pci_irq_enable() memory leak 2019-10-05 12:48:00 +02:00
pci_link.c
pci_mcfg.c
pci_root.c PCI/ACPI: Correct error message for ASPM disabling 2019-11-20 18:00:05 +01:00
pci_slot.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
power.c ACPI: power: Skip duplicate power resource references in _PRx 2019-01-16 22:07:11 +01:00
proc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
processor_core.c
processor_driver.c ACPI: processor: use dev_dbg() instead of dev_warn() when CPPC probe failed 2017-07-27 01:51:06 +02:00
processor_idle.c Revert "x86/mm: Stop calling leave_mm() in idle code" 2017-11-04 15:01:50 +01:00
processor_pdc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
processor_perflib.c ACPI: processor_perflib: Do not send _PPC change notification if not ready 2018-04-26 11:02:16 +02:00
processor_thermal.c
processor_throttling.c x86: ACPI: fix CPU hotplug deadlock 2020-04-24 08:01:20 +02:00
property.c ACPI / property: fix handling of data_nodes in acpi_get_next_subnode() 2019-05-31 06:47:17 -07:00
reboot.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
resource.c ACPI: Introduce DMA ranges parsing 2017-08-07 14:28:51 +02:00
sbs.c ACPI / SBS: Fix GPE storm on recent MacBookPro's 2019-04-20 09:15:05 +02:00
sbshc.c ACPI / SBS: Fix rare oops when removing modules 2019-11-24 08:23:19 +01:00
sbshc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
scan.c ACPI: PM: Avoid using power resources if there are none for D0 2020-06-20 10:25:01 +02:00
sleep.c ACPI / PM: save NVS memory for ASUS 1025C laptop 2018-08-22 07:46:10 +02:00
sleep.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
spcr.c ACPI: SPCR: Consider baud rate 0 as preconfigured state 2019-02-12 19:45:59 +01:00
sysfs.c ACPI: sysfs: Fix pm_profile_attr type 2020-06-30 15:38:07 -04:00
tables.c ACPICA: Tables: Change table duplication check to be related to acpi_gbl_verify_table_checksum 2017-07-20 16:38:25 +02:00
thermal.c dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
utils.c ACPI / blacklist: add acpi_match_platform_list() 2017-08-29 01:42:48 +02:00
video_detect.c ACPI: video: Use native backlight on Acer TravelMate 5735Z 2020-07-22 09:22:23 +02:00
wakeup.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00