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linux/drivers/acpi/acpica
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Raju Rangoju dc5017c57f ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." 
[ Upstream commit a83e1385b7 ]

Undo the modifications made in commit d410ee5109 ("ACPICA: avoid
"Info: mapping multiple BARs. Your kernel is fine.""). The initial
purpose of this commit was to stop memory mappings for operation
regions from overlapping page boundaries, as it can trigger warnings
if different page attributes are present.

However, it was found that when this situation arises, mapping
continues until the boundary's end, but there is still an attempt to
read/write the entire length of the map, leading to a NULL pointer
deference. For example, if a four-byte mapping request is made but
only one byte is mapped because it hits the current page boundary's
end, a four-byte read/write attempt is still made, resulting in a NULL
pointer deference.

Instead, map the entire length, as the ACPI specification does not
mandate that it must be within the same page boundary. It is
permissible for it to be mapped across different regions.

Link: https://github.com/acpica/acpica/pull/954
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218849
Fixes: d410ee5109 ("ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine."")
Co-developed-by: Sanath S <Sanath.S@amd.com>
Signed-off-by: Sanath S <Sanath.S@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-07-05 09:14:33 +02:00
..
acapps.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
accommon.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
acconvert.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
acdebug.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
acdispat.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
acevents.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
acglobal.h ACPICA: Avoid evaluating methods too early during system resume 2021-11-18 19:16:14 +01:00
achware.h ACPI: sleep: Avoid breaking S3 wakeup due to might_sleep() 2023-06-28 10:29:42 +02:00
acinterp.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
aclocal.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
acmacros.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
acnamesp.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
acobject.h ACPICA: Fix race in generic_serial_bus (I2C) and GPIO op_region parameter handling 2021-02-19 16:03:25 +01:00
acopcode.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
acparser.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
acpredef.h ACPICA: ACPI 6.4: add CXL ACPI device ID and _CBR object 2021-04-07 19:09:00 +02:00
acresrc.h ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
acstruct.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
actables.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
acutils.h ACPICA: Add support for PlatformRtMechanism OperationRegion handler 2021-06-07 14:04:43 +02:00
amlcode.h ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
amlresrc.h ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
dbcmds.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
dbconvert.c ACPICA: debugger: remove leading whitespaces when converting a string to a buffer 2019-10-28 22:12:46 +01:00
dbdisply.c ACPICA: iASL: add new OperationRegion subtype keyword PlatformRtMechanism 2020-06-05 13:34:23 +02:00
dbexec.c ACPICA: Debugger: Add a new command: "ALL <NameSeg>" 2020-10-08 18:03:55 +02:00
dbfileio.c ACPICA: make acpi_load_table() return table index 2019-10-28 22:12:46 +01:00
dbhistry.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dbinput.c ACPICA: add type casts for string functions 2021-01-22 15:51:53 +01:00
dbmethod.c ACPICA: Debugger: Add a new command: "ALL <NameSeg>" 2020-10-08 18:03:55 +02:00
dbnames.c ACPICA: debugger: check status of acpi_evaluate_object() in acpi_db_walk_for_fields() 2024-04-10 16:19:35 +02:00
dbobject.c ACPICA: Clean up exception code class checks 2021-01-18 16:01:10 +01:00
dbstats.c ACPICA: Fully deploy ACPI_PRINTF_LIKE macro 2019-08-21 00:00:37 +02:00
dbtest.c ACPICA: Debugger: Fix possible fault with the "test objects" command 2019-02-18 11:21:10 +01:00
dbutils.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
dbxface.c ACPICA: acpiexec: remove redeclaration of acpi_gbl_db_opt_no_region_support 2020-03-30 14:52:32 +02:00
dsargs.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dscontrol.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dsdebug.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dsfield.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dsinit.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dsmethod.c ACPICA: Fix error code path in acpi_ds_call_control_method() 2022-12-31 13:14:40 +01:00
dsmthdat.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
dsobject.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dsopcode.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dspkginit.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dsutils.c ACPICA: Remove defines that use deprecated flag 2018-12-13 22:40:51 +01:00
dswexec.c ACPICA: Fix an if statement (add parens) 2021-08-16 16:47:01 +02:00
dswload2.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dswload.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dswscope.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
dswstate.c ACPICA: Avoid undefined behavior: applying zero offset to null pointer 2023-05-24 17:36:44 +01:00
evevent.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
evglock.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
evgpe.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
evgpeblk.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
evgpeinit.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
evgpeutil.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
evhandler.c ACPICA: Fix race in generic_serial_bus (I2C) and GPIO op_region parameter handling 2021-02-19 16:03:25 +01:00
evmisc.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
evregion.c ACPICA: Remove some code duplication from acpi_ev_address_space_dispatch 2021-02-19 16:03:25 +01:00
evrgnini.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
evsci.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
evxface.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
evxfevnt.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
evxfgpe.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
evxfregn.c ACPICA: Fix race in generic_serial_bus (I2C) and GPIO op_region parameter handling 2021-02-19 16:03:25 +01:00
exconcat.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exconfig.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exconvrt.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
excreate.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exdebug.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exdump.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exfield.c ACPICA: Fix wrong interpretation of PCC address 2022-01-27 11:04:50 +01:00
exfldio.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exmisc.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exmutex.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exnames.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exoparg1.c ACPICA: Executer: Fix the REFCLASS_REFOF case in acpi_ex_opcode_1A_0T_1R() 2022-01-27 11:04:50 +01:00
exoparg2.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exoparg3.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exoparg6.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exprep.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exregion.c ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." 2024-07-05 09:14:33 +02:00
exresnte.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exresolv.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exresop.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exserial.c ACPICA: Add support for PlatformRtMechanism OperationRegion handler 2021-06-07 14:04:43 +02:00
exstore.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exstoren.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exstorob.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exsystem.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
extrace.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
exutils.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
hwacpi.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
hwesleep.c ACPICA: Hardware: Do not flush CPU cache when entering S4 and S5 2022-01-27 11:04:50 +01:00
hwgpe.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
hwpci.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
hwregs.c ACPICA: ACPICA: add status check for acpi_hw_read before assigning return value 2018-08-14 23:49:13 +02:00
hwsleep.c ACPICA: Hardware: Do not flush CPU cache when entering S4 and S5 2022-01-27 11:04:50 +01:00
hwtimer.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
hwvalid.c ACPICA: Drop port I/O validation for some regions 2023-03-10 09:39:08 +01:00
hwxface.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
hwxfsleep.c ACPICA: Hardware: Do not flush CPU cache when entering S4 and S5 2022-01-27 11:04:50 +01:00
Makefile ACPI: disable -Wstringop-truncation 2024-06-16 13:39:20 +02:00
nsaccess.c ACPICA: Always create namespace nodes using acpi_ns_create_node() 2021-03-24 14:50:54 +01:00
nsalloc.c ACPICA: Remove unnecessary semicolon 2020-10-08 18:03:56 +02:00
nsarguments.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
nsconvert.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
nsdump.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
nsdumpdv.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
nseval.c ACPICA: remove legacy module-level code due to deprecation 2019-07-04 00:59:43 +02:00
nsinit.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
nsload.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
nsnames.c ACPICA: Fixes for acpiExec namespace init file 2020-03-30 14:52:33 +02:00
nsobject.c ACPICA: Namespace: remove address node from global list after method termination 2019-04-09 10:05:11 +02:00
nsparse.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
nspredef.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
nsprepkg.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
nsrepair2.c Revert "ACPICA: Fix memory leak caused by _CID repair function" 2021-08-03 18:14:44 +02:00
nsrepair.c ACPICA: nsrepair: handle cases without a return value correctly 2023-03-10 09:39:09 +01:00
nssearch.c ACPICA: Revert "iASL: change processing of external op namespace nodes for correctness" 2018-07-09 11:14:45 +02:00
nsutils.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
nswalk.c ACPICA: Avoid walking the ACPI Namespace if it is not there 2022-04-08 14:23:56 +02:00
nsxfeval.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
nsxfname.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
nsxfobj.c ACPICA: Tree-wide: fix various typos and spelling mistakes 2020-10-08 18:03:55 +02:00
psargs.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
psloop.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
psobject.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
psopcode.c ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer 2023-09-23 11:09:55 +02:00
psopinfo.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
psparse.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
psscope.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
pstree.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
psutils.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
pswalk.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
psxface.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
rsaddr.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
rscalc.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rscreate.c ACPICA: More Clang changes 2019-10-28 22:12:46 +01:00
rsdump.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsdumpinfo.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsinfo.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsio.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
rsirq.c ACPI/ACPICA: Trivial: fix spelling mistakes and fix whitespace formatting 2019-02-24 21:12:01 +01:00
rslist.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsmemory.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
rsmisc.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsserial.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsutils.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
rsxface.c ACPICA: Rename nameseg compare macro for clarity 2019-04-09 10:08:28 +02:00
tbdata.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
tbfadt.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
tbfind.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
tbinstal.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
tbprint.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
tbutils.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
tbxface.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
tbxfload.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
tbxfroot.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utaddress.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utalloc.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utascii.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utbuffer.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utcache.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utcopy.c ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() 2022-12-31 13:14:04 +01:00
utdebug.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utdecode.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utdelete.c ACPICA: Utilities: Avoid deleting the same object twice in a row 2022-01-27 11:04:50 +01:00
uterror.c ACPICA: Increase total number of possible Owner IDs 2019-08-21 00:00:36 +02:00
uteval.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utexcep.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
utglobal.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
uthex.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utids.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utinit.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utlock.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utmath.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
utmisc.c ACPICA: Rename nameseg compare macro for clarity 2019-04-09 10:08:28 +02:00
utmutex.c ACPICA: Convert acpi_gbl_hardware lock back to an acpi_raw_spinlock 2018-05-10 17:18:45 +02:00
utnonansi.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
utobject.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utosi.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utownerid.c ACPICA: Increase total number of possible Owner IDs 2019-08-21 00:00:36 +02:00
utpredef.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utprint.c ACPICA: Use ACPI_FALLTHROUGH 2021-06-07 14:04:43 +02:00
utresdecode.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
utresrc.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
utstate.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00
utstring.c ACPICA: Rename nameseg length macro/define for clarity 2019-04-09 11:24:48 +02:00
utstrsuppt.c ACPICA: add type casts for string functions 2021-01-22 15:51:53 +01:00
utstrtoul64.c ACPICA: Utilities: split hex detection into smaller functions 2018-08-14 23:49:13 +02:00
uttrack.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utuuid.c ACPICA: Add support for PlatformRtMechanism OperationRegion handler 2021-06-07 14:04:43 +02:00
utxface.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utxferror.c ACPICA: Convert more ACPI errors to firmware errors 2019-01-15 18:04:02 +01:00
utxfinit.c ACPICA: Updated all copyrights to 2021 2021-01-22 15:51:53 +01:00
utxfmutex.c ACPICA: adding SPDX headers 2018-03-18 19:08:05 +01:00