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linux/drivers/acpi/acpica
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Raju Rangoju a83e1385b7 ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." 
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>
 		2024-06-17 21:13:25 +02:00
..
Makefile ACPI: disable -Wstringop-truncation 2024-04-09 17:02:30 +02:00
acapps.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
accommon.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
acconvert.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
acdebug.h ACPICA: Add interrupt command to acpiexec 2023-07-10 18:48:15 +02:00
acdispat.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
acevents.h ACPI: EC: Evaluate orphan _REG under EC device 2024-06-13 11:28:54 +02:00
acglobal.h ACPICA: Detect GED device and keep track of _EVT 2023-07-10 18:33:47 +02:00
achware.h ACPI: sleep: Avoid breaking S3 wakeup due to might_sleep() 2023-06-15 18:05:19 +02:00
acinterp.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
aclocal.h ACPICA: Fix various spelling mistakes in text files and code comments 2024-04-12 15:14:33 +02:00
acmacros.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
acnamesp.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
acobject.h ACPICA: Modify ACPI_OBJECT_COMMON_HEADER 2024-04-12 15:37:56 +02:00
acopcode.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
acparser.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
acpredef.h ACPICA: Add support for _DSC as per ACPI 6.5 2023-07-10 15:21:03 +02:00
acresrc.h ACPICA: add support for ClockInput resource (v6.5) 2023-04-06 20:29:11 +02:00
acstruct.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
actables.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
acutils.h ACPICA: add support for ClockInput resource (v6.5) 2023-04-06 20:29:11 +02:00
amlcode.h ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
amlresrc.h ACPICA: acpi_resource_irq: Replace 1-element arrays with flexible array 2023-04-06 20:29:12 +02:00
dbcmds.c ACPICA: Add interrupt command to acpiexec 2023-07-10 18:48:15 +02:00
dbconvert.c
…
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
…
dbhistry.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dbinput.c ACPICA: Add interrupt command to acpiexec 2023-07-10 18:48:15 +02:00
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() 2024-03-26 13:06:47 +01:00
dbobject.c ACPICA: Clean up exception code class checks 2021-01-18 16:01:10 +01:00
dbstats.c
…
dbtest.c
…
dbutils.c
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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: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dscontrol.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dsdebug.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dsfield.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dsinit.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dsmethod.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dsmthdat.c
…
dsobject.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dsopcode.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dspkginit.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dsutils.c
…
dswexec.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dswload.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dswload2.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dswscope.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
dswstate.c ACPICA: Slightly simplify an error message in acpi_ds_result_push() 2023-07-10 18:49:16 +02:00
evevent.c ACPI updates for 6.4-rc1 2023-04-25 18:37:41 -07:00
evglock.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
evgpe.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
evgpeblk.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
evgpeinit.c ACPICA: events/evgpeinit: don't forget to increment registered GPE count 2024-04-12 15:52:43 +02:00
evgpeutil.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
evhandler.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
evmisc.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
evregion.c ACPI: EC: Evaluate orphan _REG under EC device 2024-06-13 11:28:54 +02:00
evrgnini.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
evsci.c
…
evxface.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
evxfevnt.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
evxfgpe.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
evxfregn.c ACPI: EC: Evaluate orphan _REG under EC device 2024-06-13 11:28:54 +02:00
exconcat.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exconfig.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exconvrt.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
excreate.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exdebug.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exdump.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exfield.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exfldio.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exmisc.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exmutex.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exnames.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exoparg1.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exoparg2.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exoparg3.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exoparg6.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exprep.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exregion.c ACPICA: Revert "ACPICA: avoid Info: mapping multiple BARs. Your kernel is fine." 2024-06-17 21:13:25 +02:00
exresnte.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exresolv.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exresop.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exserial.c ACPICA: exserial.c: replace ternary operator with ACPI_MIN() 2023-07-10 15:21:03 +02:00
exstore.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exstoren.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exstorob.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exsystem.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
extrace.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
exutils.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
hwacpi.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
hwesleep.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
hwgpe.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
hwpci.c
…
hwregs.c ACPICA: Clean up double word in comment 2022-04-13 20:24:57 +02:00
hwsleep.c ACPI updates for 6.4-rc1 2023-04-25 18:37:41 -07:00
hwtimer.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
hwvalid.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
hwxface.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
hwxfsleep.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +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: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nsconvert.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nsdump.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nsdumpdv.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nseval.c
…
nsinit.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nsload.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nsnames.c ACPICA: Fixes for acpiExec namespace init file 2020-03-30 14:52:33 +02:00
nsobject.c
…
nsparse.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nspredef.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nsprepkg.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nsrepair.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nsrepair2.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nssearch.c
…
nsutils.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nswalk.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nsxfeval.c
…
nsxfname.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
nsxfobj.c ACPICA: Tree-wide: fix various typos and spelling mistakes 2020-10-08 18:03:55 +02:00
psargs.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
psloop.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
psobject.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
psopcode.c ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer 2023-07-10 18:49:16 +02:00
psopinfo.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
psparse.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
psscope.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
pstree.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
psutils.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
pswalk.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
psxface.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
rsaddr.c ACPICA: Avoid undefined behavior: member access within misaligned address 2023-04-06 20:29:11 +02:00
rscalc.c ACPICA: Avoid undefined behavior: member access within misaligned address 2023-04-06 20:29:11 +02:00
rscreate.c
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rsdump.c ACPICA: ACPI 6.4: add CSI2Bus resource template 2021-04-07 19:09:01 +02:00
rsdumpinfo.c ACPICA: add support for ClockInput resource (v6.5) 2023-04-06 20:29:11 +02:00
rsinfo.c ACPICA: add support for ClockInput resource (v6.5) 2023-04-06 20:29:11 +02:00
rsio.c
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rsirq.c
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rslist.c ACPICA: Avoid undefined behavior: member access within misaligned address 2023-04-06 20:29:11 +02:00
rsmemory.c
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rsmisc.c ACPICA: Avoid undefined behavior: load of misaligned address 2023-04-06 20:29:11 +02:00
rsserial.c ACPICA: add support for ClockInput resource (v6.5) 2023-04-06 20:29:11 +02:00
rsutils.c
…
rsxface.c
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tbdata.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
tbfadt.c ACPICA: Detect FACS even for hardware reduced platforms 2024-04-18 16:17:33 +01:00
tbfind.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
tbinstal.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
tbprint.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
tbutils.c ACPICA: Detect FACS even for hardware reduced platforms 2024-04-18 16:17:33 +01:00
tbxface.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
tbxfload.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
tbxfroot.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utaddress.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utalloc.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utascii.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utbuffer.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utcache.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utcksum.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utcopy.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utdebug.c ACPICA: Fix spelling and typos 2024-04-12 15:21:23 +02:00
utdecode.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utdelete.c ACPICA: Utilities: Avoid deleting the same object twice in a row 2021-12-27 17:01:28 +01:00
uterror.c
…
uteval.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utexcep.c
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utglobal.c ACPI updates for 6.4-rc1 2023-04-25 18:37:41 -07:00
uthex.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utids.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utinit.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utlock.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utmath.c
…
utmisc.c
…
utmutex.c
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utnonansi.c
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utobject.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utosi.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utownerid.c
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utpredef.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utprint.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utresdecode.c ACPICA: add support for ClockInput resource (v6.5) 2023-04-06 20:29:11 +02:00
utresrc.c ACPICA: Avoid undefined behavior: member access within misaligned address 2023-04-06 20:29:11 +02:00
utstate.c
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utstring.c ACPICA: Improve warning message for "invalid ACPI name" 2022-10-28 17:28:23 +02:00
utstrsuppt.c ACPICA: add type casts for string functions 2021-01-22 15:51:53 +01:00
utstrtoul64.c
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uttrack.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utuuid.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utxface.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utxferror.c
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utxfinit.c ACPICA: Update all copyrights/signons to 2023 2023-04-06 20:29:11 +02:00
utxfmutex.c
…