- Search for <ncurses.h> in the default header path of HOSTCC
- Tweak the option order to be kind to old BSD awk
- Remove 'kvmconfig' and 'xenconfig' shorthands
- Fix documentation
-----BEGIN PGP SIGNATURE-----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=T0vB
-----END PGP SIGNATURE-----
Merge tag 'kbuild-fixes-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- Search for <ncurses.h> in the default header path of HOSTCC
- Tweak the option order to be kind to old BSD awk
- Remove 'kvmconfig' and 'xenconfig' shorthands
- Fix documentation
* tag 'kbuild-fixes-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
Documentation: kbuild: Fix section reference
kconfig: remove 'kvmconfig' and 'xenconfig' shorthands
lib/raid6: Let $(UNROLL) rules work with macOS userland
kconfig: Support building mconf with vendor sysroot ncurses
kconfig: config script: add a little user help
MAINTAINERS: adjust GCC PLUGINS after gcc-plugin.sh removal
Here are some small char and misc driver fixes for 5.11-rc3.
the majority here are fixes for the habanalabs drivers, but also in here
are:
- crypto driver fix
- pvpanic driver fix
- updated font file
- interconnect driver fixes
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCX/sJUw8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ym3/wCfYVaYBcHzr0CATzOXEbtpBlMpkkMAn1M/pOET
6RuyBJCjONwT8g4BzOq1
=jlAi
-----END PGP SIGNATURE-----
Merge tag 'char-misc-5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char and misc driver fixes for 5.11-rc3.
The majority here are fixes for the habanalabs drivers, but also in
here are:
- crypto driver fix
- pvpanic driver fix
- updated font file
- interconnect driver fixes
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (26 commits)
Fonts: font_ter16x32: Update font with new upstream Terminus release
misc: pvpanic: Check devm_ioport_map() for NULL
speakup: Add github repository URL and bug tracker
MAINTAINERS: Update Georgi's email address
crypto: asym_tpm: correct zero out potential secrets
habanalabs: Fix memleak in hl_device_reset
interconnect: imx8mq: Use icc_sync_state
interconnect: imx: Remove a useless test
interconnect: imx: Add a missing of_node_put after of_device_is_available
interconnect: qcom: fix rpmh link failures
habanalabs: fix order of status check
habanalabs: register to pci shutdown callback
habanalabs: add validation cs counter, fix misplaced counters
habanalabs/gaudi: retry loading TPC f/w on -EINTR
habanalabs: adjust pci controller init to new firmware
habanalabs: update comment in hl_boot_if.h
habanalabs/gaudi: enhance reset message
habanalabs: full FW hard reset support
habanalabs/gaudi: disable CGM at HW initialization
habanalabs: Revise comment to align with mirror list name
...
This is just a maintenance patch to update font_ter16x32.c with changes
and minor fixes added in new upstream Terminus v4.49.
>From release notes of new version 4.49, this brings:
- Altered ascii grave in some sizes to be more useful as a back quote.
- Fixed 21B5, added 21B2 and 21B3.
Just as my initial submission of the font, above changes were obtained from
new ter-i32b.psf font source.
Terminus font sources are available for download at SourceForge:
https://sourceforge.net/projects/terminus-font/files/terminus-font-4.49/
Simply running `make` in source directory will build the .psf font files.
Signed-off-by: Amanoel Dawod <kernel@amanoeldawod.com>
Link: https://lore.kernel.org/r/20201226235840.26290-1-kernel@amanoeldawod.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Remove CONFIG_ENABLE_MUST_CHECK (Masahiro Yamada)
-----BEGIN PGP SIGNATURE-----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=KEnt
-----END PGP SIGNATURE-----
Merge tag 'compiler-attributes-for-linus-v5.11' of git://github.com/ojeda/linux
Pull ENABLE_MUST_CHECK removal from Miguel Ojeda:
"Remove CONFIG_ENABLE_MUST_CHECK (Masahiro Yamada)"
Note that this removes the config option by making the must-check
unconditional, not by removing must check itself.
* tag 'compiler-attributes-for-linus-v5.11' of git://github.com/ojeda/linux:
Compiler Attributes: remove CONFIG_ENABLE_MUST_CHECK
Older versions of BSD awk are fussy about the order of '-v' and '-f'
flags, and require a space after the flag name. This causes build
failures on platforms with an old awk, such as macOS and NetBSD.
Since GNU awk and modern versions of BSD awk (distributed with
FreeBSD/OpenBSD) are fine with either form, the definition of
'cmd_unroll' can be trivially tweaked to let the lib/raid6 Makefile
work with both old and new awk flag dialects.
Signed-off-by: John Millikin <john@john-millikin.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
In commit 11fb479ff5 ("zlib: export S390 symbols for zlib modules"), I
added EXPORT_SYMBOL()s to dfltcc_inflate.c but then Mikhail said that
these should probably be in dfltcc_syms.c with the other
EXPORT_SYMBOL()s.
However, that is contrary to the current kernel style, which places
EXPORT_SYMBOL() immediately after the function that it applies to, so
move all EXPORT_SYMBOL()s to their respective function locations and
drop the dfltcc_syms.c file. Also move MODULE_LICENSE() from the
deleted file to dfltcc.c.
[rdunlap@infradead.org: remove dfltcc_syms.o from Makefile]
Link: https://lkml.kernel.org/r/20201227171837.15492-1-rdunlap@infradead.org
Link: https://lkml.kernel.org/r/20201219052530.28461-1-rdunlap@infradead.org
Fixes: 11fb479ff5 ("zlib: export S390 symbols for zlib modules")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Acked-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Zaslonko Mikhail <zaslonko@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Decompressing zlib streams on s390 fails with "incorrect data check"
error.
Userspace zlib checks inflate_state.flags in order to byteswap checksums
only for zlib streams, and s390 hardware inflate code, which was ported
from there, tries to match this behavior. At the same time, kernel zlib
does not use inflate_state.flags, so it contains essentially random
values. For many use cases either zlib stream is zeroed out or checksum
is not used, so this problem is masked, but at least SquashFS is still
affected.
Fix by always passing a checksum to and from the hardware as is, which
matches zlib_inflate()'s expectations.
Link: https://lkml.kernel.org/r/20201215155551.894884-1-iii@linux.ibm.com
Fixes: 1261961000 ("lib/zlib: add s390 hardware support for kernel zlib_inflate")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Cc: <stable@vger.kernel.org> [5.6+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Some graphic card has very big memory on chip, such as 32G bytes.
In the following case, it will cause overflow:
pool = gen_pool_create(PAGE_SHIFT, NUMA_NO_NODE);
ret = gen_pool_add(pool, 0x1000000, SZ_32G, NUMA_NO_NODE);
va = gen_pool_alloc(pool, SZ_4G);
The overflow occurs in gen_pool_alloc_algo_owner():
....
size = nbits << order;
....
The @nbits is "int" type, so it will overflow.
Then the gen_pool_avail() will return the wrong value.
This patch converts some "int" to "unsigned long", and
changes the compare code in while.
Link: https://lkml.kernel.org/r/20201229060657.3389-1-sjhuang@iluvatar.ai
Signed-off-by: Huang Shijie <sjhuang@iluvatar.ai>
Reported-by: Shi Jiasheng <jiasheng.shi@iluvatar.ai>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is a preparatory commit for the upcoming addition of a new hardware
tag-based (MTE-based) KASAN mode.
The new mode won't be using shadow memory, but will still use the concept
of memory granules. Each memory granule maps to a single metadata entry:
8 bytes per one shadow byte for generic mode, 16 bytes per one shadow byte
for software tag-based mode, and 16 bytes per one allocation tag for
hardware tag-based mode.
Rename KASAN_SHADOW_SCALE_SIZE to KASAN_GRANULE_SIZE, and
KASAN_SHADOW_MASK to KASAN_GRANULE_MASK.
Also use MASK when used as a mask, otherwise use SIZE.
No functional changes.
Link: https://lkml.kernel.org/r/939b5754e47f528a6e6a6f28ffc5815d8d128033.1606161801.git.andreyknvl@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Branislav Rankov <Branislav.Rankov@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We have a handful of new kernel features for 5.11:
* Support for the contiguous memory allocator.
* Support for IRQ Time Accounting
* Support for stack tracing
* Support for strict /dev/mem
* Support for kernel section protection
I'm being a bit conservative on the cutoff for this round due to the
timing, so this is all the new development I'm going to take for this
cycle (even if some of it probably normally would have been OK). There
are, however, some fixes on the list that I will likely be sending along
either later this week or early next week.
There is one issue in here: one of my test configurations
(PREEMPT{,_DEBUG}=y) fails to boot on QEMU 5.0.0 (from April) as of the
.text.init alignment patch. With any luck we'll sort out the issue, but
given how many bugs get fixed all over the place and how unrelated those
features seem my guess is that we're just running into something that's
been lurking for a while and has already been fixed in the newer QEMU
(though I wouldn't be surprised if it's one of these implicit
assumptions we have in the boot flow). If it was hardware I'd be
strongly inclined to look more closely, but given that users can upgrade
their simulators I'm less worried about it.
There are two merge conflicts, both in build files. They're both a bit
clunky: arch/riscv/Kconfig is out of order (I have a script that's
supposed to keep them in order, I'll fix it) and lib/Makefile is out of
order (though GENERIC_LIB here doesn't mean quite what it does above).
-----BEGIN PGP SIGNATURE-----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=GWIH
-----END PGP SIGNATURE-----
Merge tag 'riscv-for-linus-5.11-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
"We have a handful of new kernel features for 5.11:
- Support for the contiguous memory allocator.
- Support for IRQ Time Accounting
- Support for stack tracing
- Support for strict /dev/mem
- Support for kernel section protection
I'm being a bit conservative on the cutoff for this round due to the
timing, so this is all the new development I'm going to take for this
cycle (even if some of it probably normally would have been OK). There
are, however, some fixes on the list that I will likely be sending
along either later this week or early next week.
There is one issue in here: one of my test configurations
(PREEMPT{,_DEBUG}=y) fails to boot on QEMU 5.0.0 (from April) as of
the .text.init alignment patch.
With any luck we'll sort out the issue, but given how many bugs get
fixed all over the place and how unrelated those features seem my
guess is that we're just running into something that's been lurking
for a while and has already been fixed in the newer QEMU (though I
wouldn't be surprised if it's one of these implicit assumptions we
have in the boot flow). If it was hardware I'd be strongly inclined to
look more closely, but given that users can upgrade their simulators
I'm less worried about it"
* tag 'riscv-for-linus-5.11-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
arm64: Use the generic devmem_is_allowed()
arm: Use the generic devmem_is_allowed()
RISC-V: Use the new generic devmem_is_allowed()
lib: Add a generic version of devmem_is_allowed()
riscv: Fixed kernel test robot warning
riscv: kernel: Drop unused clean rule
riscv: provide memmove implementation
RISC-V: Move dynamic relocation section under __init
RISC-V: Protect all kernel sections including init early
RISC-V: Align the .init.text section
RISC-V: Initialize SBI early
riscv: Enable ARCH_STACKWALK
riscv: Make stack walk callback consistent with generic code
riscv: Cleanup stacktrace
riscv: Add HAVE_IRQ_TIME_ACCOUNTING
riscv: Enable CMA support
riscv: Ignore Image.* and loader.bin
riscv: Clean up boot dir
riscv: Fix compressed Image formats build
RISC-V: Add kernel image sections to the resource tree
-----BEGIN PGP SIGNATURE-----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=zo4w
-----END PGP SIGNATURE-----
Merge tag 'for-5.11/block-2020-12-14' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe:
"Another series of killing more code than what is being added, again
thanks to Christoph's relentless cleanups and tech debt tackling.
This contains:
- blk-iocost improvements (Baolin Wang)
- part0 iostat fix (Jeffle Xu)
- Disable iopoll for split bios (Jeffle Xu)
- block tracepoint cleanups (Christoph Hellwig)
- Merging of struct block_device and hd_struct (Christoph Hellwig)
- Rework/cleanup of how block device sizes are updated (Christoph
Hellwig)
- Simplification of gendisk lookup and removal of block device
aliasing (Christoph Hellwig)
- Block device ioctl cleanups (Christoph Hellwig)
- Removal of bdget()/blkdev_get() as exported API (Christoph Hellwig)
- Disk change rework, avoid ->revalidate_disk() (Christoph Hellwig)
- sbitmap improvements (Pavel Begunkov)
- Hybrid polling fix (Pavel Begunkov)
- bvec iteration improvements (Pavel Begunkov)
- Zone revalidation fixes (Damien Le Moal)
- blk-throttle limit fix (Yu Kuai)
- Various little fixes"
* tag 'for-5.11/block-2020-12-14' of git://git.kernel.dk/linux-block: (126 commits)
blk-mq: fix msec comment from micro to milli seconds
blk-mq: update arg in comment of blk_mq_map_queue
blk-mq: add helper allocating tagset->tags
Revert "block: Fix a lockdep complaint triggered by request queue flushing"
nvme-loop: use blk_mq_hctx_set_fq_lock_class to set loop's lock class
blk-mq: add new API of blk_mq_hctx_set_fq_lock_class
block: disable iopoll for split bio
block: Improve blk_revalidate_disk_zones() checks
sbitmap: simplify wrap check
sbitmap: replace CAS with atomic and
sbitmap: remove swap_lock
sbitmap: optimise sbitmap_deferred_clear()
blk-mq: skip hybrid polling if iopoll doesn't spin
blk-iocost: Factor out the base vrate change into a separate function
blk-iocost: Factor out the active iocgs' state check into a separate function
blk-iocost: Move the usage ratio calculation to the correct place
blk-iocost: Remove unnecessary advance declaration
blk-iocost: Fix some typos in comments
blktrace: fix up a kerneldoc comment
block: remove the request_queue to argument request based tracepoints
...
Hi Linus,
Please, pull the following patches that fix many fall-through warnings
when building with Clang 12.0.0 and this[1] change reverted. Notice
that in order to enable -Wimplicit-fallthrough for Clang, such change[1]
is meant to be reverted at some point. So, these patches help to move
in that direction.
- powerpc: boot: include compiler_attributes.h (Nick Desaulniers)
- Revert "lib: Revert use of fallthrough pseudo-keyword in lib/" (Nick Desaulniers)
- powerpc: fix -Wimplicit-fallthrough (Nick Desaulniers)
- lib: Fix fall-through warnings for Clang (Gustavo A. R. Silva)
Thanks!
[1] commit e2079e93f5 ("kbuild: Do not enable -Wimplicit-fallthrough for clang for now")
-----BEGIN PGP SIGNATURE-----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=HLCX
-----END PGP SIGNATURE-----
Merge tag 'fallthrough-fixes-clang-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux
Pull fallthrough fixes from Gustavo A. R. Silva:
"Fix many fall-through warnings when building with Clang 12.0.0
using -Wimplicit-fallthrough.
- powerpc: boot: include compiler_attributes.h (Nick Desaulniers)
- Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
(Nick Desaulniers)
- powerpc: fix -Wimplicit-fallthrough (Nick Desaulniers)
- lib: Fix fall-through warnings for Clang (Gustavo A. R. Silva)"
* tag 'fallthrough-fixes-clang-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux:
lib: Fix fall-through warnings for Clang
powerpc: fix -Wimplicit-fallthrough
Revert "lib: Revert use of fallthrough pseudo-keyword in lib/"
powerpc: boot: include compiler_attributes.h
This kunit update for Linux 5.11-rc1 consists of:
-- documentation update and fix to kunit_tool to parse diagnostic
messages correctly from David Gow
-- Support for Parameterized Testing and fs/ext4 test updates to use
KUnit parameterized testing feature from Arpitha Raghunandan
-- Helper to derive file names depending on --build_dir argument
from Andy Shevchenko
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEPZKym/RZuOCGeA/kCwJExA0NQxwFAl/ZJK8ACgkQCwJExA0N
QxxICA//RdZlggFjtKCPS9uW7W/at5P0bvwAlL7/paXf+2lKRX7R6sFToApcGCO7
uUffafV2rE1/JPugm7HNBmCDiJvG1A2+Mp5/UKya7ffMRjL0++3AHjQNlKusXU97
LiqdTy57zhiZ7ZwVtGwSlozStvt8sDzAXMBZ0jPnLHxMEHqR4V7L17SokKsyT7FP
9/woDzrEqf3Npj+RHpcL50lGMfBgTgzc1eH8xqYEnQ9vV1BrMn43ReIE0vGDuQzN
EqAcB9iSi8xCqJHFfxqeYbXdFmdyq7gMO0T8BU6NjYJeAh9DJK/BOOw+9J0mSpGs
9FgMlTLN0dJ6x5geFNhAf3IbzTULZS3Impmjre5a/VuIO29W8GcTPOWoxSfDhqjG
7aD/6Z3qV6oJVjYmK5gec6SY0spsK6f5VTZ7G4oEc5JoyL9r9uc/kdg/V/x03q6K
RvanZJNA+r30A5l229T8RpTgkJ+jyRklVH46AZFJSFcucGi0wS109cpr5YVWUAcl
jEpqSkWxcssK2/qI8nCqIiQ0XBFP33wt+ECQf+4IO9TMNqQXpnNkl7DtqQ3Yi/R9
/zoQ2ojIziTiQ24gfcF5vFDNPrTTBFOwObDQj939YGreks0zsDxahtgbVln332cm
TAnc+fFFtKEgpTLQAWjdSWOLvtLxLvwtItiKKReEQi2Pz6MV6js=
=jqjK
-----END PGP SIGNATURE-----
Merge tag 'linux-kselftest-kunit-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kunit updates from Shuah Khan:
- documentation update and fix to kunit_tool to parse diagnostic
messages correctly from David Gow
- Support for Parameterized Testing and fs/ext4 test updates to use
KUnit parameterized testing feature from Arpitha Raghunandan
- Helper to derive file names depending on --build_dir argument from
Andy Shevchenko
* tag 'linux-kselftest-kunit-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
fs: ext4: Modify inode-test.c to use KUnit parameterized testing feature
kunit: Support for Parameterized Testing
kunit: kunit_tool: Correctly parse diagnostic messages
Documentation: kunit: provide guidance for testing many inputs
kunit: Introduce get_file_path() helper
Fix the following sparse warning:
lib/lzo/lzo1x_compress.c:304:5: warning: symbol 'lzogeneric1x_1_compress' was not declared. Should it be static?
Link: https://lkml.kernel.org/r/20201020031415.136874-1-yanaijie@huawei.com
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Cc: Dave Rodgman <dave.rodgman@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit af3b854492 ("mm/page_alloc.c: allow error injection")
introduced EI_ETYPE_TRUE, but did not extend
* lib/error-inject.c:error_type_string(), and
* kernel/fail_function.c:adjust_error_retval()
to accommodate for this change.
Handle EI_ETYPE_TRUE in both functions appropriately by
* returning "TRUE" in error_type_string(),
* adjusting the return value to true (1) in adjust_error_retval().
Furthermore, simplify the logic of handling EI_ETYPE_NULL in
adjust_error_retval().
Link: https://lkml.kernel.org/r/njB1czX0ZgWPR9h61euHIBb5bEyePw9D4D2m3i5lc9Cl96P8Q1308dTcmsEZW7Vtz3Ifz4do-rOtSfuFTyGoEDYokkK2aUqBePVptzZEWfU=@protonmail.com
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix the following sparse warning:
lib/ubsan.c:20:12: warning: symbol 'type_check_kinds' was not declared. Should it be static?
[akpm@linux-foundation.org: make it `static const char * const' while we're in there]
Link: https://lkml.kernel.org/r/1607602638-79584-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Expand the UBSAN tests to include some additional UB cases. Notably the
out-of-bounds enum loading appears not to work. Also include per-test
reporting, including the relevant CONFIG_UBSAN... Kconfigs.
Link: https://lkml.kernel.org/r/20201203004437.389959-8-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: George Popescu <georgepope@android.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Marco Elver <elver@google.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make each UBSAN option individually selectable and remove UBSAN_MISC which
no longer has any purpose. Add help text for each Kconfig, and include a
reference to the Clang sanitizer documentation. Disable unsigned overflow
by default (not available with GCC and makes x86 unbootable with Clang).
Disable unreachable when objtool is in use (redundant and confuses things:
instrumentation appears at unreachable locations).
Link: https://lkml.kernel.org/r/20201203004437.389959-7-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: George Popescu <georgepope@android.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Marco Elver <elver@google.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With UBSAN_OBJECT_SIZE disabled for GCC, only UBSAN_ALIGNMENT remained a
noisy UBSAN option. Disable it for COMPILE_TEST so the rest of UBSAN can
be used for full all*config builds or other large combinations.
[sfr@canb.auug.org.au: add .data..Lubsan_data*/.data..Lubsan_type* sections explicitly]
Link: https://lkml.kernel.org/r/20201208230157.42c42789@canb.auug.org.au
Link: https://lore.kernel.org/lkml/CAHk-=wgXW=YLxGN0QVpp-1w5GDd2pf1W-FqY15poKzoVfik2qA@mail.gmail.com/
Link: https://lkml.kernel.org/r/20201203004437.389959-6-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: George Popescu <georgepope@android.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Marco Elver <elver@google.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Doing all*config builds attempts to build as much as possible. UBSAN_TRAP
effectively short-circuits lib/usban.c, so it should be disabled for
COMPILE_TEST so that the lib/ubsan.c code gets built.
Link: https://lkml.kernel.org/r/20201203004437.389959-5-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: George Popescu <georgepope@android.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Marco Elver <elver@google.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Instead of doing if/endif blocks with cc-option calls in the UBSAN
Makefile, move all the tests into Kconfig and use the Makefile to collect
the results.
Link: https://lkml.kernel.org/r/20201203004437.389959-3-keescook@chromium.org
Link: https://lore.kernel.org/lkml/CAHk-=wjPasyJrDuwDnpHJS2TuQfExwe=px-SzLeN8GFMAQJPmQ@mail.gmail.com/
Signed-off-by: Kees Cook <keescook@chromium.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: George Popescu <georgepope@android.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Marco Elver <elver@google.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "Clean up UBSAN Makefile", v2.
This series attempts to address the issues seen with UBSAN's object-size
sanitizer causing problems under GCC. In the process, the Kconfig and
Makefile are refactored to do all the cc-option calls in the Kconfig.
Additionally start to detangle -Wno-maybe-uninitialized, disable
UBSAN_TRAP under COMPILE_TEST for wider build coverage, and expand the
libusan tests.
This patch (of 7):
In commit 78a5255ffb ("Stop the ad-hoc games with
-Wno-maybe-initialized") -Wmaybe-uninitialized was disabled globally, so
keeping the disabling logic here too doesn't make sense.
Link: https://lkml.kernel.org/r/20201203004437.389959-1-keescook@chromium.org
Link: https://lkml.kernel.org/r/20201203004437.389959-2-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Marco Elver <elver@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: George Popescu <georgepope@android.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
LZ4 final literal copy could be overlapped when doing
in-place decompression, so it's unsafe to just use memcpy()
on an optimized memcpy approach but memmove() instead.
Upstream LZ4 has updated this years ago [1] (and the impact
is non-sensible [2] plus only a few bytes remain), this commit
just synchronizes LZ4 upstream code to the kernel side as well.
It can be observed as EROFS in-place decompression failure
on specific files when X86_FEATURE_ERMS is unsupported,
memcpy() optimization of commit 59daa706fb ("x86, mem:
Optimize memcpy by avoiding memory false dependece") will
be enabled then.
Currently most modern x86-CPUs support ERMS, these CPUs just
use "rep movsb" approach so no problem at all. However, it can
still be verified with forcely disabling ERMS feature...
arch/x86/lib/memcpy_64.S:
ALTERNATIVE_2 "jmp memcpy_orig", "", X86_FEATURE_REP_GOOD, \
- "jmp memcpy_erms", X86_FEATURE_ERMS
+ "jmp memcpy_orig", X86_FEATURE_ERMS
We didn't observe any strange on arm64/arm/x86 platform before
since most memcpy() would behave in an increasing address order
("copy upwards" [3]) and it's the correct order of in-place
decompression but it really needs an update to memmove() for sure
considering it's an undefined behavior according to the standard
and some unique optimization already exists in the kernel.
[1] 33cb8518ac
[2] https://github.com/lz4/lz4/pull/717#issuecomment-497818921
[3] https://sourceware.org/bugzilla/show_bug.cgi?id=12518
Link: https://lkml.kernel.org/r/20201122030749.2698994-1-hsiangkao@redhat.com
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Nick Terrell <terrelln@fb.com>
Cc: Yann Collet <yann.collet.73@gmail.com>
Cc: Miao Xie <miaoxie@huawei.com>
Cc: Chao Yu <yuchao0@huawei.com>
Cc: Li Guifu <bluce.liguifu@huawei.com>
Cc: Guo Xuenan <guoxuenan@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use proper conversion functions. kstrto*() variants exist for all
standard types.
Link: https://lkml.kernel.org/r/20201122123410.GB92364@localhost.localdomain
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A few architecture specific string.h functions used to be implemented in
terms of preprocessor defines to the corresponding compiler builtins.
Since this is no longer the case, remove unused #undefs.
Only memcmp is still defined in terms of builtins for a few arches.
Link: https://github.com/ClangBuiltLinux/linux/issues/428
Link: https://lkml.kernel.org/r/20201120041113.89382-1-ndesaulniers@google.com
Fixes: 5f074f3e19 ("lib/string.c: implement a basic bcmp")
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Yury Norov <yury.norov@gmail.com>
Cc: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: Nathan Chancellor <natechancellor@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Test get_option() for a starter which is provided by cmdline.c.
[akpm@linux-foundation.org: fix warning by constifying cmdline_test_values]
[andriy.shevchenko@linux.intel.com: type of expected returned values should be int]
Link: https://lkml.kernel.org/r/20201116104244.15472-1-andriy.shevchenko@linux.intel.com
[andriy.shevchenko@linux.intel.com: provide meaningful MODULE_LICENSE()]
Link: https://lkml.kernel.org/r/20201116104257.15527-1-andriy.shevchenko@linux.intel.com
Link: https://lkml.kernel.org/r/20201112180732.75589-6-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Vitor Massaru Iha <vitor@massaru.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Gow <davidgow@google.com>
Cc: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In the future we would like to use get_option() to only validate the
string and parse it separately. To achieve this, allow NULL to be an
output for get_option().
Link: https://lkml.kernel.org/r/20201112180732.75589-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Gow <davidgow@google.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Vitor Massaru Iha <vitor@massaru.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When string doesn't have an integer and starts from hyphen get_option()
may return interesting results. Fix it to return 0.
The simple_strtoull() is used due to absence of simple_strtoul() in a boot
code on some architectures.
Note, the Fixes tag below is rather for anthropological curiosity.
Link: https://lkml.kernel.org/r/20201112180732.75589-4-andriy.shevchenko@linux.intel.com
Fixes: f68565831e72 ("Import 2.4.0-test2pre3")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Brendan Higgins <brendanhiggins@google.com>
Cc: David Gow <davidgow@google.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Vitor Massaru Iha <vitor@massaru.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
On PREEMPT_RT the locks are quite different so they can't be tested as it
is done below. The alternative is to test for the waitlock within
rtmutex.
This is the bare minimun to get it compiled. Problems which exist on
PREEMP_RT:
- none of the locks (spinlock_t, rwlock_t, mutex_t, rw_semaphore) may
be acquired with disabled preemption or interrupts.
If I read the code correct the it is possible to acquire a mutex_t
with disabled interrupts.
I don't know how to obtain a lock pointer. Technically they are not
exported to userland.
- memory can not be allocated with disabled preemption or interrupts
even with GFP_ATOMIC.
Link: https://lkml.kernel.org/r/20201028181041.xyeothhkouc3p4md@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use array_size() helper instead of the open-coded version in jhash2().
These sorts of multiplication factors need to be wrapped in array_size().
Also, use the preferred form for passing the size of an object type.
Link: https://lkml.kernel.org/r/cb8a682e4bba4dbddd2bd8aca7f8c02fea89639b.1601565471.git.gustavoars@kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Make use of the flex_array_size() helper to calculate the size of a
flexible array member within an enclosing structure.
This helper offers defense-in-depth against potential integer overflows,
while at the same time makes it explicitly clear that we are dealing with
a flexible array member.
Link: https://lkml.kernel.org/r/186e37fe07196ee41a0e562fa8a8cb7a01112ec5.1601565471.git.gustavoars@kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The test module to check that free_pages() does not leak memory does not
provide any feedback whatsoever its state or progress, but may take some
time on slow machines. Add the printing of messages upon starting each
phase of the test, and upon completion.
Link: https://lkml.kernel.org/r/20201018140445.20972-1-geert@linux-m68k.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel.h is being used as a dump for all kinds of stuff for a long time.
Here is the attempt to start cleaning it up by splitting out
mathematical helpers.
At the same time convert users in header and lib folder to use new
header. Though for time being include new header back to kernel.h to
avoid twisted indirected includes for existing users.
[sfr@canb.auug.org.au: fix powerpc build]
Link: https://lkml.kernel.org/r/20201029150809.13059608@canb.auug.org.au
Link: https://lkml.kernel.org/r/20201028173212.41768-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Update ACPICA code in the kernel to upstream revision 20201113
with changes as follows:
* Add 5 new UUIDs to the known UUID table (Bob Moore).
* Remove extreaneous "the" in comments (Colin Ian King).
* Add function trace macros to improve debugging (Erik Kaneda).
* Fix interpreter memory leak (Erik Kaneda).
* Handle "orphan" _REG for GPIO OpRegions (Hans de Goede).
- Introduce resource_union() and resource_intersection() helpers
and clean up some resource-manipulation code with the help of
them (Andy Shevchenko).
- Revert problematic commit related to the handling of resources
in the ACPI core (Daniel Scally).
- Extend the ACPI device enumeration documentation and the
gpio-line-names _DSD property documentation, clean up the
latter (Flavio Suligoi).
- Clean up _DEP handling during device enumeration, modify the list
of _DEP exceptions and the handling of it and fix up terminology
related to _DEP (Hans de Goede, Rafael Wysocki).
- Eliminate in_interrupt() usage from the ACPI EC driver (Sebastian
Andrzej Siewior).
- Clean up the advance_transaction() routine and related code in
the ACPI EC driver (Rafael Wysocki).
- Add new backlight quirk for GIGABYTE GB-BXBT-2807 (Jasper
St. Pierre).
- Make assorted janitorial changes in several ACPI-related pieces
of code (Hanjun Guo, Jason Yan, Punit Agrawal).
-----BEGIN PGP SIGNATURE-----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=5LZe
-----END PGP SIGNATURE-----
Merge tag 'acpi-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to upstream revision
20201113, fix and clean up some resources manipulation code, extend
the enumeration and gpio-line-names property documentation, clean up
the handling of _DEP during device enumeration, add a new backlight
DMI quirk, clean up transaction handling in the EC driver and make
some assorted janitorial changes.
Specifics:
- Update ACPICA code in the kernel to upstream revision 20201113 with
changes as follows:
* Add 5 new UUIDs to the known UUID table (Bob Moore)
* Remove extreaneous "the" in comments (Colin Ian King)
* Add function trace macros to improve debugging (Erik Kaneda)
* Fix interpreter memory leak (Erik Kaneda)
* Handle "orphan" _REG for GPIO OpRegions (Hans de Goede)
- Introduce resource_union() and resource_intersection() helpers and
clean up some resource-manipulation code with the help of them
(Andy Shevchenko)
- Revert problematic commit related to the handling of resources in
the ACPI core (Daniel Scally)
- Extend the ACPI device enumeration documentation and the
gpio-line-names _DSD property documentation, clean up the latter
(Flavio Suligoi)
- Clean up _DEP handling during device enumeration, modify the list
of _DEP exceptions and the handling of it and fix up terminology
related to _DEP (Hans de Goede, Rafael Wysocki)
- Eliminate in_interrupt() usage from the ACPI EC driver (Sebastian
Andrzej Siewior)
- Clean up the advance_transaction() routine and related code in the
ACPI EC driver (Rafael Wysocki)
- Add new backlight quirk for GIGABYTE GB-BXBT-2807 (Jasper St
Pierre)
- Make assorted janitorial changes in several ACPI-related pieces of
code (Hanjun Guo, Jason Yan, Punit Agrawal)"
* tag 'acpi-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (40 commits)
ACPI: scan: Fix up _DEP-related terminology with supplier/consumer
ACPI: scan: Drop INT3396 from acpi_ignore_dep_ids[]
ACPI: video: Add DMI quirk for GIGABYTE GB-BXBT-2807
Revert "ACPI / resources: Use AE_CTRL_TERMINATE to terminate resources walks"
ACPI: scan: Add PNP0D80 to the _DEP exceptions list
ACPI: scan: Call acpi_get_object_info() from acpi_add_single_object()
ACPI: scan: Add acpi_info_matches_hids() helper
ACPICA: Update version to 20201113
ACPICA: Interpreter: fix memory leak by using existing buffer
ACPICA: Add function trace macros to improve debugging
ACPICA: Also handle "orphan" _REG methods for GPIO OpRegions
ACPICA: Remove extreaneous "the" in comments
ACPICA: Add 5 new UUIDs to the known UUID table
resource: provide meaningful MODULE_LICENSE() in test suite
ASoC: Intel: catpt: Replace open coded variant of resource_intersection()
ACPI: processor: Drop duplicate setting of shared_cpu_map
ACPI: EC: Clean up status flags checks in advance_transaction()
ACPI: EC: Untangle error handling in advance_transaction()
ACPI: EC: Simplify error handling in advance_transaction()
ACPI: EC: Rename acpi_ec_is_gpe_raised()
...
Here is the big driver core updates for 5.11-rc1
This time there was a lot of different work happening here for some
reason:
- redo of the fwnode link logic, speeding it up greatly
- auxiliary bus added (this was a tag that will be pulled in
from other trees/maintainers this merge window as well, as
driver subsystems started to rely on it)
- platform driver core cleanups on the way to fixing some
long-time api updates in future releases
- minor fixes and tweaks.
All have been in linux-next with no (finally) reported issues. Testing
there did helped in shaking issues out a lot :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-----BEGIN PGP SIGNATURE-----
iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCX9iEUQ8cZ3JlZ0Brcm9h
aC5jb20ACgkQMUfUDdst+ynBJwCgjBAtVWXquZz4m/pyjn0HoTC7tdYAnAlQIj9s
vRbPjOgH9R+YRJzFs1Kx
=X6UP
-----END PGP SIGNATURE-----
Merge tag 'driver-core-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the big driver core updates for 5.11-rc1
This time there was a lot of different work happening here for some
reason:
- redo of the fwnode link logic, speeding it up greatly
- auxiliary bus added (this was a tag that will be pulled in from
other trees/maintainers this merge window as well, as driver
subsystems started to rely on it)
- platform driver core cleanups on the way to fixing some long-time
api updates in future releases
- minor fixes and tweaks.
All have been in linux-next with no (finally) reported issues. Testing
there did helped in shaking issues out a lot :)"
* tag 'driver-core-5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (39 commits)
driver core: platform: don't oops in platform_shutdown() on unbound devices
ACPI: Use fwnode_init() to set up fwnode
misc: pvpanic: Replace OF headers by mod_devicetable.h
misc: pvpanic: Combine ACPI and platform drivers
usb: host: sl811: Switch to use platform_get_mem_or_io()
vfio: platform: Switch to use platform_get_mem_or_io()
driver core: platform: Introduce platform_get_mem_or_io()
dyndbg: fix use before null check
soc: fix comment for freeing soc_dev_attr
driver core: platform: use bus_type functions
driver core: platform: change logic implementing platform_driver_probe
driver core: platform: reorder functions
driver core: make driver_probe_device() static
driver core: Fix a couple of typos
driver core: Reorder devices on successful probe
driver core: Delete pointless parameter in fwnode_operations.add_links
driver core: Refactor fw_devlink feature
efi: Update implementation of add_links() to create fwnode links
of: property: Update implementation of add_links() to create fwnode links
driver core: Use device's fwnode to check if it is waiting for suppliers
...
Core:
- support "prefer busy polling" NAPI operation mode, where we defer softirq
for some time expecting applications to periodically busy poll
- AF_XDP: improve efficiency by more batching and hindering
the adjacency cache prefetcher
- af_packet: make packet_fanout.arr size configurable up to 64K
- tcp: optimize TCP zero copy receive in presence of partial or unaligned
reads making zero copy a performance win for much smaller messages
- XDP: add bulk APIs for returning / freeing frames
- sched: support fragmenting IP packets as they come out of conntrack
- net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs
BPF:
- BPF switch from crude rlimit-based to memcg-based memory accounting
- BPF type format information for kernel modules and related tracing
enhancements
- BPF implement task local storage for BPF LSM
- allow the FENTRY/FEXIT/RAW_TP tracing programs to use bpf_sk_storage
Protocols:
- mptcp: improve multiple xmit streams support, memory accounting and
many smaller improvements
- TLS: support CHACHA20-POLY1305 cipher
- seg6: add support for SRv6 End.DT4/DT6 behavior
- sctp: Implement RFC 6951: UDP Encapsulation of SCTP
- ppp_generic: add ability to bridge channels directly
- bridge: Connectivity Fault Management (CFM) support as is defined in
IEEE 802.1Q section 12.14.
Drivers:
- mlx5: make use of the new auxiliary bus to organize the driver internals
- mlx5: more accurate port TX timestamping support
- mlxsw:
- improve the efficiency of offloaded next hop updates by using
the new nexthop object API
- support blackhole nexthops
- support IEEE 802.1ad (Q-in-Q) bridging
- rtw88: major bluetooth co-existance improvements
- iwlwifi: support new 6 GHz frequency band
- ath11k: Fast Initial Link Setup (FILS)
- mt7915: dual band concurrent (DBDC) support
- net: ipa: add basic support for IPA v4.5
Refactor:
- a few pieces of in_interrupt() cleanup work from Sebastian Andrzej Siewior
- phy: add support for shared interrupts; get rid of multiple driver
APIs and have the drivers write a full IRQ handler, slight growth
of driver code should be compensated by the simpler API which
also allows shared IRQs
- add common code for handling netdev per-cpu counters
- move TX packet re-allocation from Ethernet switch tag drivers to
a central place
- improve efficiency and rename nla_strlcpy
- number of W=1 warning cleanups as we now catch those in a patchwork
build bot
Old code removal:
- wan: delete the DLCI / SDLA drivers
- wimax: move to staging
- wifi: remove old WDS wifi bridging support
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----
iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAl/YXmUACgkQMUZtbf5S
IrvSQBAAgOrt4EFopEvVqlTHZbqI45IEqgtXS+YWmlgnjZCgshyMj8q1yK1zzane
qYxr/NNJ9kV3FdtaynmmHPgEEEfR5kJ/D3B2BsxYDkaDDrD0vbNsBGw+L+/Gbhxl
N/5l/9FjLyLY1D+EErknuwR5XGuQ6BSDVaKQMhYOiK2hgdnAAI4hszo8Chf6wdD0
XDBslQ7vpD/05r+eMj0IkS5dSAoGOIFXUxhJ5dqrDbRHiKsIyWqA3PLbYemfAhxI
s2XckjfmSgGE3FKL8PSFu+EcfHbJQQjLcULJUnqgVcdwEEtRuE9ggEi52nZRXMWM
4e8sQJAR9Fx7pZy0G1xfS149j6iPU5LjRlU9TNSpVABz14Vvvo3gEL6gyIdsz+xh
hMN7UBdp0FEaP028CXoIYpaBesvQqj0BSndmee8qsYAtN6j+QKcM2AOSr7JN1uMH
C/86EDoGAATiEQIVWJvnX5MPmlAoblyLA+RuVhmxkIBx2InGXkFmWqRkXT5l4jtk
LVl8/TArR4alSQqLXictXCjYlCm9j5N4zFFtEVasSYi7/ZoPfgRNWT+lJ2R8Y+Zv
+htzGaFuyj6RJTVeFQMrkl3whAtBamo2a0kwg45NnxmmXcspN6kJX1WOIy82+MhD
Yht7uplSs7MGKA78q/CDU0XBeGjpABUvmplUQBIfrR/jKLW2730=
=GXs1
-----END PGP SIGNATURE-----
Merge tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- support "prefer busy polling" NAPI operation mode, where we defer
softirq for some time expecting applications to periodically busy
poll
- AF_XDP: improve efficiency by more batching and hindering the
adjacency cache prefetcher
- af_packet: make packet_fanout.arr size configurable up to 64K
- tcp: optimize TCP zero copy receive in presence of partial or
unaligned reads making zero copy a performance win for much smaller
messages
- XDP: add bulk APIs for returning / freeing frames
- sched: support fragmenting IP packets as they come out of conntrack
- net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs
BPF:
- BPF switch from crude rlimit-based to memcg-based memory accounting
- BPF type format information for kernel modules and related tracing
enhancements
- BPF implement task local storage for BPF LSM
- allow the FENTRY/FEXIT/RAW_TP tracing programs to use
bpf_sk_storage
Protocols:
- mptcp: improve multiple xmit streams support, memory accounting and
many smaller improvements
- TLS: support CHACHA20-POLY1305 cipher
- seg6: add support for SRv6 End.DT4/DT6 behavior
- sctp: Implement RFC 6951: UDP Encapsulation of SCTP
- ppp_generic: add ability to bridge channels directly
- bridge: Connectivity Fault Management (CFM) support as is defined
in IEEE 802.1Q section 12.14.
Drivers:
- mlx5: make use of the new auxiliary bus to organize the driver
internals
- mlx5: more accurate port TX timestamping support
- mlxsw:
- improve the efficiency of offloaded next hop updates by using
the new nexthop object API
- support blackhole nexthops
- support IEEE 802.1ad (Q-in-Q) bridging
- rtw88: major bluetooth co-existance improvements
- iwlwifi: support new 6 GHz frequency band
- ath11k: Fast Initial Link Setup (FILS)
- mt7915: dual band concurrent (DBDC) support
- net: ipa: add basic support for IPA v4.5
Refactor:
- a few pieces of in_interrupt() cleanup work from Sebastian Andrzej
Siewior
- phy: add support for shared interrupts; get rid of multiple driver
APIs and have the drivers write a full IRQ handler, slight growth
of driver code should be compensated by the simpler API which also
allows shared IRQs
- add common code for handling netdev per-cpu counters
- move TX packet re-allocation from Ethernet switch tag drivers to a
central place
- improve efficiency and rename nla_strlcpy
- number of W=1 warning cleanups as we now catch those in a patchwork
build bot
Old code removal:
- wan: delete the DLCI / SDLA drivers
- wimax: move to staging
- wifi: remove old WDS wifi bridging support"
* tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1922 commits)
net: hns3: fix expression that is currently always true
net: fix proc_fs init handling in af_packet and tls
nfc: pn533: convert comma to semicolon
af_vsock: Assign the vsock transport considering the vsock address flags
af_vsock: Set VMADDR_FLAG_TO_HOST flag on the receive path
vsock_addr: Check for supported flag values
vm_sockets: Add VMADDR_FLAG_TO_HOST vsock flag
vm_sockets: Add flags field in the vsock address data structure
net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled
tcp: Add logic to check for SYN w/ data in tcp_simple_retransmit
net: mscc: ocelot: install MAC addresses in .ndo_set_rx_mode from process context
nfc: s3fwrn5: Release the nfc firmware
net: vxget: clean up sparse warnings
mlxsw: spectrum_router: Use eXtended mezzanine to offload IPv4 router
mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3
mlxsw: spectrum_router_xm: Introduce basic XM cache flushing
mlxsw: reg: Add Router LPM Cache Enable Register
mlxsw: reg: Add Router LPM Cache ML Delete Register
mlxsw: spectrum_router_xm: Implement L-value tracking for M-index
mlxsw: reg: Add XM Router M Table Register
...
Merge misc updates from Andrew Morton:
- a few random little subsystems
- almost all of the MM patches which are staged ahead of linux-next
material. I'll trickle to post-linux-next work in as the dependents
get merged up.
Subsystems affected by this patch series: kthread, kbuild, ide, ntfs,
ocfs2, arch, and mm (slab-generic, slab, slub, dax, debug, pagecache,
gup, swap, shmem, memcg, pagemap, mremap, hmm, vmalloc, documentation,
kasan, pagealloc, memory-failure, hugetlb, vmscan, z3fold, compaction,
oom-kill, migration, cma, page-poison, userfaultfd, zswap, zsmalloc,
uaccess, zram, and cleanups).
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (200 commits)
mm: cleanup kstrto*() usage
mm: fix fall-through warnings for Clang
mm: slub: convert sysfs sprintf family to sysfs_emit/sysfs_emit_at
mm: shmem: convert shmem_enabled_show to use sysfs_emit_at
mm:backing-dev: use sysfs_emit in macro defining functions
mm: huge_memory: convert remaining use of sprintf to sysfs_emit and neatening
mm: use sysfs_emit for struct kobject * uses
mm: fix kernel-doc markups
zram: break the strict dependency from lzo
zram: add stat to gather incompressible pages since zram set up
zram: support page writeback
mm/process_vm_access: remove redundant initialization of iov_r
mm/zsmalloc.c: rework the list_add code in insert_zspage()
mm/zswap: move to use crypto_acomp API for hardware acceleration
mm/zswap: fix passing zero to 'PTR_ERR' warning
mm/zswap: make struct kernel_param_ops definitions const
userfaultfd/selftests: hint the test runner on required privilege
userfaultfd/selftests: fix retval check for userfaultfd_open()
userfaultfd/selftests: always dump something in modes
userfaultfd: selftests: make __{s,u}64 format specifiers portable
...
Adds a test to verify workqueue stack recording and print it in
KASAN report.
The KASAN report was as follows(cleaned up slightly):
BUG: KASAN: use-after-free in kasan_workqueue_uaf
Freed by task 54:
kasan_save_stack+0x24/0x50
kasan_set_track+0x24/0x38
kasan_set_free_info+0x20/0x40
__kasan_slab_free+0x10c/0x170
kasan_slab_free+0x10/0x18
kfree+0x98/0x270
kasan_workqueue_work+0xc/0x18
Last potentially related work creation:
kasan_save_stack+0x24/0x50
kasan_record_wq_stack+0xa8/0xb8
insert_work+0x48/0x288
__queue_work+0x3e8/0xc40
queue_work_on+0xf4/0x118
kasan_workqueue_uaf+0xfc/0x190
Link: https://lkml.kernel.org/r/20201203022748.30681-1-walter-zh.wu@mediatek.com
Signed-off-by: Walter Wu <walter-zh.wu@mediatek.com>
Acked-by: Marco Elver <elver@google.com>
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Lai Jiangshan <jiangshanlai@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since I butchered this I figured better to make sure we have testcases for
this now. Since we only have a locking context for __GFP_FS that's the
only thing we're testing right now.
Link: https://lkml.kernel.org/r/20201125162532.1299794-4-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Qian Cai <cai@lca.pw>
Cc: Thomas Hellström (Intel) <thomas_os@shipmail.org>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Will Deacon <will@kernel.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Paul E. McKenney <paulmck@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Waiman Long <longman@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* acpi-resources:
Revert "ACPI / resources: Use AE_CTRL_TERMINATE to terminate resources walks"
resource: provide meaningful MODULE_LICENSE() in test suite
ASoC: Intel: catpt: Replace open coded variant of resource_intersection()
ACPI: watchdog: Replace open coded variant of resource_union()
PCI/ACPI: Replace open coded variant of resource_union()
resource: Add test cases for new resource API
resource: Introduce resource_intersection() for overlapping resources
resource: Introduce resource_union() for overlapping resources
resource: Group resource_overlaps() with other inline helpers
resource: Simplify region_intersects() by reducing conditionals
* acpi-docs:
Documentation: ACPI: enumeration: add PCI hierarchy representation
Documentation: ACPI: _DSD: enable hyperlink in final references
Documentation: ACPI: explain how to use gpio-line-names
- Consolidate all kmap_atomic() internals into a generic implementation
which builds the base for the kmap_local() API and make the
kmap_atomic() interface wrappers which handle the disabling/enabling of
preemption and pagefaults.
- Switch the storage from per-CPU to per task and provide scheduler
support for clearing mapping when scheduling out and restoring them
when scheduling back in.
- Merge the migrate_disable/enable() code, which is also part of the
scheduler pull request. This was required to make the kmap_local()
interface available which does not disable preemption when a mapping
is established. It has to disable migration instead to guarantee that
the virtual address of the mapped slot is the same accross preemption.
- Provide better debug facilities: guard pages and enforced utilization
of the mapping mechanics on 64bit systems when the architecture allows
it.
- Provide the new kmap_local() API which can now be used to cleanup the
kmap_atomic() usage sites all over the place. Most of the usage sites
do not require the implicit disabling of preemption and pagefaults so
the penalty on 64bit and 32bit non-highmem systems is removed and quite
some of the code can be simplified. A wholesale conversion is not
possible because some usage depends on the implicit side effects and
some need to be cleaned up because they work around these side effects.
The migrate disable side effect is only effective on highmem systems
and when enforced debugging is enabled. On 64bit and 32bit non-highmem
systems the overhead is completely avoided.
-----BEGIN PGP SIGNATURE-----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=n71I
-----END PGP SIGNATURE-----
Merge tag 'core-mm-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull kmap updates from Thomas Gleixner:
"The new preemtible kmap_local() implementation:
- Consolidate all kmap_atomic() internals into a generic
implementation which builds the base for the kmap_local() API and
make the kmap_atomic() interface wrappers which handle the
disabling/enabling of preemption and pagefaults.
- Switch the storage from per-CPU to per task and provide scheduler
support for clearing mapping when scheduling out and restoring them
when scheduling back in.
- Merge the migrate_disable/enable() code, which is also part of the
scheduler pull request. This was required to make the kmap_local()
interface available which does not disable preemption when a
mapping is established. It has to disable migration instead to
guarantee that the virtual address of the mapped slot is the same
across preemption.
- Provide better debug facilities: guard pages and enforced
utilization of the mapping mechanics on 64bit systems when the
architecture allows it.
- Provide the new kmap_local() API which can now be used to cleanup
the kmap_atomic() usage sites all over the place. Most of the usage
sites do not require the implicit disabling of preemption and
pagefaults so the penalty on 64bit and 32bit non-highmem systems is
removed and quite some of the code can be simplified. A wholesale
conversion is not possible because some usage depends on the
implicit side effects and some need to be cleaned up because they
work around these side effects.
The migrate disable side effect is only effective on highmem
systems and when enforced debugging is enabled. On 64bit and 32bit
non-highmem systems the overhead is completely avoided"
* tag 'core-mm-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
ARM: highmem: Fix cache_is_vivt() reference
x86/crashdump/32: Simplify copy_oldmem_page()
io-mapping: Provide iomap_local variant
mm/highmem: Provide kmap_local*
sched: highmem: Store local kmaps in task struct
x86: Support kmap_local() forced debugging
mm/highmem: Provide CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP
mm/highmem: Provide and use CONFIG_DEBUG_KMAP_LOCAL
microblaze/mm/highmem: Add dropped #ifdef back
xtensa/mm/highmem: Make generic kmap_atomic() work correctly
mm/highmem: Take kmap_high_get() properly into account
highmem: High implementation details and document API
Documentation/io-mapping: Remove outdated blurb
io-mapping: Cleanup atomic iomap
mm/highmem: Remove the old kmap_atomic cruft
highmem: Get rid of kmap_types.h
xtensa/mm/highmem: Switch to generic kmap atomic
sparc/mm/highmem: Switch to generic kmap atomic
powerpc/mm/highmem: Switch to generic kmap atomic
nds32/mm/highmem: Switch to generic kmap atomic
...
- migrate_disable/enable() support which originates from the RT tree and
is now a prerequisite for the new preemptible kmap_local() API which aims
to replace kmap_atomic().
- A fair amount of topology and NUMA related improvements
- Improvements for the frequency invariant calculations
- Enhanced robustness for the global CPU priority tracking and decision
making
- The usual small fixes and enhancements all over the place
-----BEGIN PGP SIGNATURE-----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=Oz1V
-----END PGP SIGNATURE-----
Merge tag 'sched-core-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Thomas Gleixner:
- migrate_disable/enable() support which originates from the RT tree
and is now a prerequisite for the new preemptible kmap_local() API
which aims to replace kmap_atomic().
- A fair amount of topology and NUMA related improvements
- Improvements for the frequency invariant calculations
- Enhanced robustness for the global CPU priority tracking and decision
making
- The usual small fixes and enhancements all over the place
* tag 'sched-core-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (61 commits)
sched/fair: Trivial correction of the newidle_balance() comment
sched/fair: Clear SMT siblings after determining the core is not idle
sched: Fix kernel-doc markup
x86: Print ratio freq_max/freq_base used in frequency invariance calculations
x86, sched: Use midpoint of max_boost and max_P for frequency invariance on AMD EPYC
x86, sched: Calculate frequency invariance for AMD systems
irq_work: Optimize irq_work_single()
smp: Cleanup smp_call_function*()
irq_work: Cleanup
sched: Limit the amount of NUMA imbalance that can exist at fork time
sched/numa: Allow a floating imbalance between NUMA nodes
sched: Avoid unnecessary calculation of load imbalance at clone time
sched/numa: Rename nr_running and break out the magic number
sched: Make migrate_disable/enable() independent of RT
sched/topology: Condition EAS enablement on FIE support
arm64: Rebuild sched domains on invariance status changes
sched/topology,schedutil: Wrap sched domains rebuild
sched/uclamp: Allow to reset a task uclamp constraint value
sched/core: Fix typos in comments
Documentation: scheduler: fix information on arch SD flags, sched_domain and sched_debug
...
- A few extensions to the rwsem API and support for opportunistic
spinning and lock stealing
- lockdep selftest improvements
- Documentation updates
- Cleanups and small fixes all over the place
-----BEGIN PGP SIGNATURE-----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=uqcN
-----END PGP SIGNATURE-----
Merge tag 'locking-core-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Thomas Gleixner:
"A moderate set of locking updates:
- A few extensions to the rwsem API and support for opportunistic
spinning and lock stealing
- lockdep selftest improvements
- Documentation updates
- Cleanups and small fixes all over the place"
* tag 'locking-core-2020-12-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
seqlock: kernel-doc: Specify when preemption is automatically altered
seqlock: Prefix internal seqcount_t-only macros with a "do_"
Documentation: seqlock: s/LOCKTYPE/LOCKNAME/g
locking/rwsem: Remove reader optimistic spinning
locking/rwsem: Enable reader optimistic lock stealing
locking/rwsem: Prevent potential lock starvation
locking/rwsem: Pass the current atomic count to rwsem_down_read_slowpath()
locking/rwsem: Fold __down_{read,write}*()
locking/rwsem: Introduce rwsem_write_trylock()
locking/rwsem: Better collate rwsem_read_trylock()
rwsem: Implement down_read_interruptible
rwsem: Implement down_read_killable_nested
refcount: Fix a kernel-doc markup
completion: Drop init_completion define
atomic: Update MAINTAINERS
atomic: Delete obsolete documentation
seqlock: Rename __seqprop() users
lockdep/selftest: Add spin_nest_lock test
lockdep/selftests: Fix PROVE_RAW_LOCK_NESTING
seqlock: avoid -Wshadow warnings
...
hugepages using CMA:
- Add arch_get_random_long() support.
- Add ap bus userspace notifications.
- Increase default size of vmalloc area to 512GB and otherwise let it increase
dynamically by the size of physical memory. This should fix all occurrences
where the vmalloc area was not large enough.
- Completely get rid of set_fs() (aka select SET_FS) and rework address space
handling while doing that; making address space handling much more simple.
- Reimplement getcpu vdso syscall in C.
- Add support for extended SCLP responses (> 4k). This allows e.g. to handle
also potential large system configurations.
- Simplify KASAN by removing 3-level page table support and only supporting
4-levels from now on.
- Improve debug-ability of the kernel decompressor code, which now prints also
stack traces and symbols in case of problems to the console.
- Remove more power management leftovers.
- Other various fixes and improvements all over the place.
-----BEGIN PGP SIGNATURE-----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=UR7j
-----END PGP SIGNATURE-----
Merge tag 's390-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Heiko Carstens:
- Add support for the hugetlb_cma command line option to allocate
gigantic hugepages using CMA
- Add arch_get_random_long() support.
- Add ap bus userspace notifications.
- Increase default size of vmalloc area to 512GB and otherwise let it
increase dynamically by the size of physical memory. This should fix
all occurrences where the vmalloc area was not large enough.
- Completely get rid of set_fs() (aka select SET_FS) and rework address
space handling while doing that; making address space handling much
more simple.
- Reimplement getcpu vdso syscall in C.
- Add support for extended SCLP responses (> 4k). This allows e.g. to
handle also potential large system configurations.
- Simplify KASAN by removing 3-level page table support and only
supporting 4-levels from now on.
- Improve debug-ability of the kernel decompressor code, which now
prints also stack traces and symbols in case of problems to the
console.
- Remove more power management leftovers.
- Other various fixes and improvements all over the place.
* tag 's390-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (62 commits)
s390/mm: add support to allocate gigantic hugepages using CMA
s390/crypto: add arch_get_random_long() support
s390/smp: perform initial CPU reset also for SMT siblings
s390/mm: use invalid asce for user space when switching to init_mm
s390/idle: fix accounting with machine checks
s390/idle: add missing mt_cycles calculation
s390/boot: add build-id to decompressor
s390/kexec_file: fix diag308 subcode when loading crash kernel
s390/cio: fix use-after-free in ccw_device_destroy_console
s390/cio: remove pm support from ccw bus driver
s390/cio: remove pm support from css-bus driver
s390/cio: remove pm support from IO subchannel drivers
s390/cio: remove pm support from chsc subchannel driver
s390/vmur: remove unused pm related functions
s390/tape: remove unsupported PM functions
s390/cio: remove pm support from eadm-sch drivers
s390: remove pm support from console drivers
s390/dasd: remove unused pm related functions
s390/zfcp: remove pm support from zfcp driver
s390/ap: let bus_register() add the AP bus sysfs attributes
...
Mauro Carvalho Chehab