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539979b6ec
android_kernel_samsung_sm8650/drivers/acpi
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Ard Biesheuvel 539979b6ec ACPI/IORT: work around num_ids ambiguity 
The ID mapping table structure of the IORT table describes the size of
a range using a num_ids field carrying the number of IDs in the region
minus one. This has been misinterpreted in the past in the parsing code,
and firmware is known to have shipped where this results in an ambiguity,
where regions that should be adjacent have an overlap of one value.

So let's work around this by detecting this case specifically: when
resolving an ID translation, allow one that matches right at the end of
a multi-ID region to be superseded by a subsequent one.

To prevent potential regressions on broken firmware that happened to
work before, only take the subsequent match into account if it occurs
at the start of a mapping region.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Link: https://lore.kernel.org/r/20200501161014.5935-3-ardb@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
2020-05-04 12:07:41 +01:00
..
acpica Merge branch 'acpica' 2020-04-06 16:23:31 +02:00
apei x86/mm: split vmalloc_sync_all() 2020-03-21 18:56:06 -07:00
arm64 ACPI/IORT: work around num_ids ambiguity 2020-05-04 12:07:41 +01:00
dptf ACPI: Update Tiger Lake ACPI device IDs 2020-04-01 13:20:21 +02:00
nfit Merge branch 'for-5.7/libnvdimm' into libnvdimm-for-next 2020-04-02 19:55:17 -07:00
numa ACPI: NUMA: Up-level "map to online node" functionality 2020-02-17 10:49:06 -08:00
pmic ACPI / PMIC: Add Cherry Trail Crystal Cove PMIC OpRegion driver 2019-10-25 11:43:08 +02:00
x86 ACPI: Convert to new X86 CPU match macros 2020-03-24 21:30:50 +01:00
ac.c ACPI / AC: Cleanup DMI quirk table 2020-03-04 10:32:50 +01:00
acpi_adxl.c ACPI/ADXL: Add address translation interface using an ACPI DSM 2018-10-16 10:03:00 +02:00
acpi_amba.c Merge 5.2-rc6 into char-misc-next 2019-06-23 09:23:33 +02:00
acpi_apd.c ACPI / APD: Add clock frequency for Hisilicon Hip08-Lite I2C controller 2020-02-03 12:03:18 +01:00
acpi_cmos_rtc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
acpi_configfs.c ACPICA: make acpi_load_table() return table index 2019-10-28 22:12:46 +01:00
acpi_dbg.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
acpi_extlog.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 437 2019-06-05 17:37:17 +02:00
acpi_ipmi.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
acpi_lpat.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
acpi_lpit.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
acpi_lpss.c ACPI: Convert to new X86 CPU match macros 2020-03-24 21:30:50 +01:00
acpi_memhotplug.c mm/memory_hotplug: rename walk_memory_range() and pass start+size instead of pfns 2019-07-18 17:08:06 -07:00
acpi_pad.c ACPI, x86: Add Zhaoxin processors support for NONSTOP TSC 2019-06-22 11:45:57 +02:00
acpi_platform.c ACPI: platform: Unregister stale platform devices 2019-10-17 23:48:39 +02:00
acpi_pnp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
acpi_processor.c ACPI: processor: Export acpi_processor_evaluate_cst() 2019-12-27 11:02:07 +01:00
acpi_tad.c ACPI: TAD: Add low-level support for real time capability 2018-10-18 09:11:53 +02:00
acpi_video.c ACPI: video: remove redundant assignments to variable result 2020-03-04 10:43:04 +01:00
acpi_watchdog.c ACPI: watchdog: Fix gas->access_width usage 2020-02-13 23:51:30 +01:00
battery.c ACPI / battery: Cleanup Lenovo Ideapad Miix 320 DMI table entry 2020-03-04 10:32:50 +01:00
bgrt.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
blacklist.c ACPI: blacklist: fix clang warning for unused DMI table 2019-07-11 22:45:00 +02:00
bus.c ACPI: bus: Fix NULL pointer check in acpi_bus_get_private_data() 2019-11-29 11:42:10 +01:00
button.c ACPI: button: Drop no longer necessary Asus T200TA lid_init_state quirk 2020-04-20 10:37:15 +02:00
cm_sbs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
container.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
cppc_acpi.c ACPI: CPPC: clean up acpi_get_psd_map() 2020-03-28 13:25:41 +01:00
custom_method.c Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00
debugfs.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
device_pm.c ACPI: Update Tiger Lake ACPI device IDs 2020-04-01 13:20:21 +02:00
device_sysfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
dock.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
ec_sys.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 482 2019-06-19 17:09:52 +02:00
ec.c ACPI: EC: Fix up fast path check in acpi_ec_add() 2020-04-06 17:40:27 +02:00
event.c ACPI: event: replace strcpy() by strscpy() 2019-04-23 10:54:26 +02:00
evged.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
fan.c ACPI: fan: Use scnprintf() for avoiding potential buffer overflow 2020-03-14 11:11:58 +01:00
glue.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
hed.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
internal.h ACPI updates for 5.7-rc1 2020-03-30 15:17:04 -07:00
ioapic.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
irq.c Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 11:01:13 -07:00
Kconfig ACPI: Add new tiny-power-button driver to directly signal init 2020-02-13 23:36:23 +01:00
Makefile ACPI: Add new tiny-power-button driver to directly signal init 2020-02-13 23:36:23 +01:00
nvs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
osi.c ACPI: OSI: Shoot duplicate word 2019-11-13 11:12:08 +01:00
osl.c ACPI: OSL: Add missing __acquires/__releases annotations 2020-03-04 10:40:48 +01:00
pci_irq.c ACPI / PCI: fix acpi_pci_irq_enable() memory leak 2019-09-03 09:41:25 +02:00
pci_link.c ACPI/PCI: pci_link: use extended_irq union member when setting ext-irq shareable 2020-04-20 10:36:22 +02:00
pci_mcfg.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 459 2019-06-19 17:09:09 +02:00
pci_root.c pci-v5.7-changes 2020-04-03 14:25:02 -07:00
pci_slot.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 491 2019-06-19 17:09:52 +02:00
power.c ACPI / PM: Introduce concept of a _PR0 dependent device 2019-06-27 12:31:57 +02:00
pptt.c ACPI: PPTT: Consistently use unsigned int as parameter type 2020-01-07 11:46:36 +01:00
proc.c ACPI: list_for_each_safe() -> list_for_each_entry_safe() 2020-03-04 10:48:00 +01:00
processor_core.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
processor_driver.c cpufreq: Use per-policy frequency QoS 2019-10-21 02:05:21 +02:00
processor_idle.c ACPI: processor: Export acpi_processor_evaluate_cst() 2019-12-27 11:02:07 +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: Add QoS requests for all CPUs 2019-10-25 11:33:48 +02:00
processor_thermal.c ACPI: processor: Add QoS requests for all CPUs 2019-10-25 11:33:48 +02:00
processor_throttling.c x86: ACPI: fix CPU hotplug deadlock 2020-04-04 16:28:24 +02:00
property.c device property: Add a function to obtain a node's prefix 2019-10-11 11:26:55 +02:00
reboot.c ACPI: Allow CONFIG_PCI to be unset for reboot 2018-12-20 10:19:49 +01:00
resource.c acpi: Use pr_warn instead of pr_warning 2019-10-18 15:00:19 +02:00
sbs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
sbshc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372 2019-06-05 17:37:10 +02:00
sbshc.h ACPI: SBS: remove unused const variable 'SMBUS_PEC' 2019-08-23 12:55:09 +02:00
scan.c treewide: remove redundant IS_ERR() before error code check 2020-02-04 03:05:27 +00:00
sleep.c ACPI: PM: Add acpi_[un]register_wakeup_handler() 2020-04-04 19:45:18 +02:00
sleep.h ACPI: PM: Add acpi_[un]register_wakeup_handler() 2020-04-04 19:45:18 +02:00
spcr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sysfs.c ACPI: sysfs: Change ACPI_MASKABLE_GPE_MAX to 0x100 2019-11-19 09:40:16 +01:00
tables.c ACPICA: Add NHLT table signature 2020-03-30 14:52:33 +02:00
thermal.c ACPI: thermal: switch to use <linux/units.h> helpers 2020-01-31 10:30:39 -08:00
tiny-power-button.c ACPI: Add new tiny-power-button driver to directly signal init 2020-02-13 23:36:23 +01:00
utils.c ACPI / utils: Introduce acpi_dev_hid_uid_match() helper 2019-10-15 12:06:23 +02:00
video_detect.c ACPI: video: Use native backlight on Acer Aspire 5783z 2020-04-01 11:18:31 +02:00
wakeup.c ACPI: PM: Add acpi_[un]register_wakeup_handler() 2020-04-04 19:45:18 +02:00