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e778361555
41203 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
e778361555 |
umh: simplify the capability pointer logic
The usermodehelper code uses two fake pointers for the two capability cases: CAP_BSET for reading and writing 'usermodehelper_bset', and CAP_PI to read and write 'usermodehelper_inheritable'. This seems to be a completely unnecessary indirection, since we could instead just use the pointers themselves, and never have to do any "if this then that" kind of logic. So just get rid of the fake pointer values, and use the real pointer values instead. Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Eric Biederman <ebiederm@xmission.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Kees Cook <keescook@chromium.org> Cc: Iurii Zaikin <yzaikin@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
c8b4accf86 |
More power management updates for 6.3-rc1
- Fix error handling in the apple-soc cpufreq driver (Dan Carpenter).
- Change the log level of a message in the amd-pstate cpufreq driver
so it is more visible to users (Kai-Heng Feng).
- Adjust the balance_performance EPP value for Sapphire Rapids in the
intel_pstate cpufreq driver (Srinivas Pandruvada).
- Remove MODULE_LICENSE from 3 pieces of non-modular code (Nick Alcock).
- Make a read-only kobj_type structure in the schedutil cpufreq governor
constant (Thomas Weißschuh).
- Add Add Power Limit4 support for Meteor Lake SoC to the Intel RAPL
power capping driver (Sumeet Pawnikar).
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Merge tag 'pm-6.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These update power capping (new hardware support and cleanup) and
cpufreq (bug fixes, cleanups and intel_pstate adjustment for a new
platform).
Specifics:
- Fix error handling in the apple-soc cpufreq driver (Dan Carpenter)
- Change the log level of a message in the amd-pstate cpufreq driver
so it is more visible to users (Kai-Heng Feng)
- Adjust the balance_performance EPP value for Sapphire Rapids in the
intel_pstate cpufreq driver (Srinivas Pandruvada)
- Remove MODULE_LICENSE from 3 pieces of non-modular code (Nick
Alcock)
- Make a read-only kobj_type structure in the schedutil cpufreq
governor constant (Thomas Weißschuh)
- Add Add Power Limit4 support for Meteor Lake SoC to the Intel RAPL
power capping driver (Sumeet Pawnikar)"
* tag 'pm-6.3-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: apple-soc: Fix an IS_ERR() vs NULL check
powercap: remove MODULE_LICENSE in non-modules
cpufreq: intel_pstate: remove MODULE_LICENSE in non-modules
powercap: RAPL: Add Power Limit4 support for Meteor Lake SoC
cpufreq: amd-pstate: remove MODULE_LICENSE in non-modules
cpufreq: schedutil: make kobj_type structure constant
cpufreq: amd-pstate: Let user know amd-pstate is disabled
cpufreq: intel_pstate: Adjust balance_performance EPP for Sapphire Rapids
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Linus Torvalds
|
9d0281b56b |
block-6.3-2023-03-03
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Merge tag 'block-6.3-2023-03-03' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- NVMe pull request via Christoph:
- Don't access released socket during error recovery (Akinobu
Mita)
- Bring back auto-removal of deleted namespaces during sequential
scan (Christoph Hellwig)
- Fix an error code in nvme_auth_process_dhchap_challenge (Dan
Carpenter)
- Show well known discovery name (Daniel Wagner)
- Add a missing endianess conversion in effects masking (Keith
Busch)
- Fix for a regression introduced in blk-rq-qos during init in this
merge window (Breno)
- Reorder a few fields in struct blk_mq_tag_set, eliminating a few
holes and shrinking it (Christophe)
- Remove redundant bdev_get_queue() NULL checks (Juhyung)
- Add sed-opal single user mode support flag (Luca)
- Remove SQE128 check in ublk as it isn't needed, saving some memory
(Ming)
- Op specific segment checking for cloned requests (Uday)
- Exclusive open partition scan fixes (Yu)
- Loop offset/size checking before assigning them in the device (Zhong)
- Bio polling fixes (me)
* tag 'block-6.3-2023-03-03' of git://git.kernel.dk/linux:
blk-mq: enforce op-specific segment limits in blk_insert_cloned_request
nvme-fabrics: show well known discovery name
nvme-tcp: don't access released socket during error recovery
nvme-auth: fix an error code in nvme_auth_process_dhchap_challenge()
nvme: bring back auto-removal of deleted namespaces during sequential scan
blk-iocost: Pass gendisk to ioc_refresh_params
nvme: fix sparse warning on effects masking
block: be a bit more careful in checking for NULL bdev while polling
block: clear bio->bi_bdev when putting a bio back in the cache
loop: loop_set_status_from_info() check before assignment
ublk: remove check IO_URING_F_SQE128 in ublk_ch_uring_cmd
block: remove more NULL checks after bdev_get_queue()
blk-mq: Reorder fields in 'struct blk_mq_tag_set'
block: fix scan partition for exclusively open device again
block: Revert "block: Do not reread partition table on exclusively open device"
sed-opal: add support flag for SUM in status ioctl
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Linus Torvalds
|
f122a08b19 |
capability: just use a 'u64' instead of a 'u32[2]' array
Back in 2008 we extended the capability bits from 32 to 64, and we did
it by extending the single 32-bit capability word from one word to an
array of two words. It was then obfuscated by hiding the "2" behind two
macro expansions, with the reasoning being that maybe it gets extended
further some day.
That reasoning may have been valid at the time, but the last thing we
want to do is to extend the capability set any more. And the array of
values not only causes source code oddities (with loops to deal with
it), but also results in worse code generation. It's a lose-lose
situation.
So just change the 'u32[2]' into a 'u64' and be done with it.
We still have to deal with the fact that the user space interface is
designed around an array of these 32-bit values, but that was the case
before too, since the array layouts were different (ie user space
doesn't use an array of 32-bit values for individual capability masks,
but an array of 32-bit slices of multiple masks).
So that marshalling of data is actually simplified too, even if it does
remain somewhat obscure and odd.
This was all triggered by my reaction to the new "cap_isidentical()"
introduced recently. By just using a saner data structure, it went from
unsigned __capi;
CAP_FOR_EACH_U32(__capi) {
if (a.cap[__capi] != b.cap[__capi])
return false;
}
return true;
to just being
return a.val == b.val;
instead. Which is rather more obvious both to humans and to compilers.
Cc: Mateusz Guzik <mjguzik@gmail.com>
Cc: Casey Schaufler <casey@schaufler-ca.com>
Cc: Serge Hallyn <serge@hallyn.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Paul Moore <paul@paul-moore.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
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Linus Torvalds
|
6ffb575beb |
dma-mapping updates for Linux 6.3
- remove a not very useful and now unused swiotlb API
(Christoph Hellwig)
- fix a section mismatch (Randy Dunlap)
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Merge tag 'dma-mapping-6.3-2022-02-27' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
- remove a not very useful and now unused swiotlb API (Christoph
Hellwig)
- fix a section mismatch (Randy Dunlap)
* tag 'dma-mapping-6.3-2022-02-27' of git://git.infradead.org/users/hch/dma-mapping:
swiotlb: mark swiotlb_memblock_alloc() as __init
swiotlb: remove swiotlb_max_segment
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|
Linus Torvalds
|
498a1cf902 |
Kbuild updates for v6.3
- Change V=1 option to print both short log and full command log.
- Allow V=1 and V=2 to be combined as V=12.
- Make W=1 detect wrong .gitignore files.
- Tree-wide cleanups for unused command line arguments passed to Clang.
- Stop using -Qunused-arguments with Clang.
- Make scripts/setlocalversion handle only correct release tags instead
of any arbitrary annotated tag.
- Create Debian and RPM source packages without cleaning the source tree.
- Various cleanups for packaging.
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Merge tag 'kbuild-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:
- Change V=1 option to print both short log and full command log
- Allow V=1 and V=2 to be combined as V=12
- Make W=1 detect wrong .gitignore files
- Tree-wide cleanups for unused command line arguments passed to Clang
- Stop using -Qunused-arguments with Clang
- Make scripts/setlocalversion handle only correct release tags instead
of any arbitrary annotated tag
- Create Debian and RPM source packages without cleaning the source
tree
- Various cleanups for packaging
* tag 'kbuild-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (74 commits)
kbuild: rpm-pkg: remove unneeded KERNELRELEASE from modules/headers_install
docs: kbuild: remove description of KBUILD_LDS_MODULE
.gitattributes: use 'dts' diff driver for *.dtso files
kbuild: deb-pkg: improve the usability of source package
kbuild: deb-pkg: fix binary-arch and clean in debian/rules
kbuild: tar-pkg: use tar rules in scripts/Makefile.package
kbuild: make perf-tar*-src-pkg work without relying on git
kbuild: deb-pkg: switch over to source format 3.0 (quilt)
kbuild: deb-pkg: make .orig tarball a hard link if possible
kbuild: deb-pkg: hide KDEB_SOURCENAME from Makefile
kbuild: srcrpm-pkg: create source package without cleaning
kbuild: rpm-pkg: build binary packages from source rpm
kbuild: deb-pkg: create source package without cleaning
kbuild: add a tool to list files ignored by git
Documentation/llvm: add Chimera Linux, Google and Meta datacenters
setlocalversion: use only the correct release tag for git-describe
setlocalversion: clean up the construction of version output
.gitignore: ignore *.cover and *.mbx
kbuild: remove --include-dir MAKEFLAG from top Makefile
kbuild: fix trivial typo in comment
...
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Linus Torvalds
|
116b41162f |
probes cleanup updates for v6.3:
These are the probe events cleanup patches, no new features but improve
readability.
- Rename print_probe_args() to trace_probe_print_args() and un-inlined.
- Introduce a set of default data fetch functions for dynamic probe
events.
- Extract common code of data fetch process of dynamic probe events.
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Merge tag 'probes-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull kprobes cleanup updates from Masami Hiramatsu:
"These are probe events cleanups, no new features but improve
readability:
- Rename print_probe_args() to trace_probe_print_args() and
un-inline it
- Introduce a set of default data fetch functions for dynamic
probe events
- Extract common code of data fetch process of dynamic probe events"
* tag 'probes-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
kernel/trace: extract common part in process_fetch_insn
kernel/trace: Provide default impelentations defined in trace_probe_tmpl.h
kernel/trace: Introduce trace_probe_print_args and use it in *probes
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Linus Torvalds
|
e534a583cc |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha
Pull alpha updates from Al Viro: "Mostly small janitorial fixes but there's also more important ones: a patch to fix loading large modules from Edward Humes, and some fixes from Al Viro" [ The fixes from Al mostly came in separately through Al's trees too and are now duplicated.. - Linus ] * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mattst88/alpha: alpha: in_irq() cleanup alpha: lazy FPU switching alpha/boot/misc: trim unused declarations alpha/boot/tools/objstrip: fix the check for ELF header alpha/boot: fix the breakage from -isystem series... alpha: fix FEN fault handling alpha: Avoid comma separated statements alpha: fixed a typo in core_cia.c alpha: remove unused __SLOW_DOWN_IO and SLOW_DOWN_IO definitions alpha: update config files alpha: fix R_ALPHA_LITERAL reloc for large modules alpha: Add some spaces to ensure format specification alpha: replace NR_SYSCALLS by NR_syscalls alpha: Remove redundant local asm header redirections alpha: Implement "current_stack_pointer" alpha: remove redundant err variable alpha: osf_sys: reduce kernel log spamming on invalid osf_mount call typenr |
||
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Linus Torvalds
|
7c3dc440b1 |
cxl for v6.3
- CXL RAM region enumeration: instantiate 'struct cxl_region' objects
for platform firmware created memory regions
- CXL RAM region provisioning: complement the existing PMEM region
creation support with RAM region support
- "Soft Reservation" policy change: Online (memory hot-add)
soft-reserved memory (EFI_MEMORY_SP) by default, but still allow for
setting aside such memory for dedicated access via device-dax.
- CXL Events and Interrupts: Takeover CXL event handling from
platform-firmware (ACPI calls this CXL Memory Error Reporting) and
export CXL Events via Linux Trace Events.
- Convey CXL _OSC results to drivers: Similar to PCI, let the CXL
subsystem interrogate the result of CXL _OSC negotiation.
- Emulate CXL DVSEC Range Registers as "decoders": Allow for
first-generation devices that pre-date the definition of the CXL HDM
Decoder Capability to translate the CXL DVSEC Range Registers into
'struct cxl_decoder' objects.
- Set timestamp: Per spec, set the device timestamp in case of hotplug,
or if platform-firwmare failed to set it.
- General fixups: linux-next build issues, non-urgent fixes for
pre-production hardware, unit test fixes, spelling and debug message
improvements.
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Merge tag 'cxl-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull Compute Express Link (CXL) updates from Dan Williams:
"To date Linux has been dependent on platform-firmware to map CXL RAM
regions and handle events / errors from devices. With this update we
can now parse / update the CXL memory layout, and report events /
errors from devices. This is a precursor for the CXL subsystem to
handle the end-to-end "RAS" flow for CXL memory. i.e. the flow that
for DDR-attached-DRAM is handled by the EDAC driver where it maps
system physical address events to a field-replaceable-unit (FRU /
endpoint device). In general, CXL has the potential to standardize
what has historically been a pile of memory-controller-specific error
handling logic.
Another change of note is the default policy for handling RAM-backed
device-dax instances. Previously the default access mode was "device",
mmap(2) a device special file to access memory. The new default is
"kmem" where the address range is assigned to the core-mm via
add_memory_driver_managed(). This saves typical users from wondering
why their platform memory is not visible via free(1) and stuck behind
a device-file. At the same time it allows expert users to deploy
policy to, for example, get dedicated access to high performance
memory, or hide low performance memory from general purpose kernel
allocations. This affects not only CXL, but also systems with
high-bandwidth-memory that platform-firmware tags with the
EFI_MEMORY_SP (special purpose) designation.
Summary:
- CXL RAM region enumeration: instantiate 'struct cxl_region' objects
for platform firmware created memory regions
- CXL RAM region provisioning: complement the existing PMEM region
creation support with RAM region support
- "Soft Reservation" policy change: Online (memory hot-add)
soft-reserved memory (EFI_MEMORY_SP) by default, but still allow
for setting aside such memory for dedicated access via device-dax.
- CXL Events and Interrupts: Takeover CXL event handling from
platform-firmware (ACPI calls this CXL Memory Error Reporting) and
export CXL Events via Linux Trace Events.
- Convey CXL _OSC results to drivers: Similar to PCI, let the CXL
subsystem interrogate the result of CXL _OSC negotiation.
- Emulate CXL DVSEC Range Registers as "decoders": Allow for
first-generation devices that pre-date the definition of the CXL
HDM Decoder Capability to translate the CXL DVSEC Range Registers
into 'struct cxl_decoder' objects.
- Set timestamp: Per spec, set the device timestamp in case of
hotplug, or if platform-firwmare failed to set it.
- General fixups: linux-next build issues, non-urgent fixes for
pre-production hardware, unit test fixes, spelling and debug
message improvements"
* tag 'cxl-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (66 commits)
dax/kmem: Fix leak of memory-hotplug resources
cxl/mem: Add kdoc param for event log driver state
cxl/trace: Add serial number to trace points
cxl/trace: Add host output to trace points
cxl/trace: Standardize device information output
cxl/pci: Remove locked check for dvsec_range_allowed()
cxl/hdm: Add emulation when HDM decoders are not committed
cxl/hdm: Create emulated cxl_hdm for devices that do not have HDM decoders
cxl/hdm: Emulate HDM decoder from DVSEC range registers
cxl/pci: Refactor cxl_hdm_decode_init()
cxl/port: Export cxl_dvsec_rr_decode() to cxl_port
cxl/pci: Break out range register decoding from cxl_hdm_decode_init()
cxl: add RAS status unmasking for CXL
cxl: remove unnecessary calling of pci_enable_pcie_error_reporting()
dax/hmem: build hmem device support as module if possible
dax: cxl: add CXL_REGION dependency
cxl: avoid returning uninitialized error code
cxl/pmem: Fix nvdimm registration races
cxl/mem: Fix UAPI command comment
cxl/uapi: Tag commands from cxl_query_cmd()
...
|
||
|
Linus Torvalds
|
143c7bc649 |
iommufd for 6.3
Some polishing and small fixes for iommufd:
- Remove IOMMU_CAP_INTR_REMAP, instead rely on the interrupt subsystem
- Use GFP_KERNEL_ACCOUNT inside the iommu_domains
- Support VFIO_NOIOMMU mode with iommufd
- Various typos
- A list corruption bug if HWPTs are used for attach
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Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd updates from Jason Gunthorpe:
"Some polishing and small fixes for iommufd:
- Remove IOMMU_CAP_INTR_REMAP, instead rely on the interrupt
subsystem
- Use GFP_KERNEL_ACCOUNT inside the iommu_domains
- Support VFIO_NOIOMMU mode with iommufd
- Various typos
- A list corruption bug if HWPTs are used for attach"
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommufd: Do not add the same hwpt to the ioas->hwpt_list twice
iommufd: Make sure to zero vfio_iommu_type1_info before copying to user
vfio: Support VFIO_NOIOMMU with iommufd
iommufd: Add three missing structures in ucmd_buffer
selftests: iommu: Fix test_cmd_destroy_access() call in user_copy
iommu: Remove IOMMU_CAP_INTR_REMAP
irq/s390: Add arch_is_isolated_msi() for s390
iommu/x86: Replace IOMMU_CAP_INTR_REMAP with IRQ_DOMAIN_FLAG_ISOLATED_MSI
genirq/msi: Rename IRQ_DOMAIN_MSI_REMAP to IRQ_DOMAIN_ISOLATED_MSI
genirq/irqdomain: Remove unused irq_domain_check_msi_remap() code
iommufd: Convert to msi_device_has_isolated_msi()
vfio/type1: Convert to iommu_group_has_isolated_msi()
iommu: Add iommu_group_has_isolated_msi()
genirq/msi: Add msi_device_has_isolated_msi()
|
||
|
Linus Torvalds
|
a93e884edf |
Driver core changes for 6.3-rc1
Here is the large set of driver core changes for 6.3-rc1.
There's a lot of changes this development cycle, most of the work falls
into two different categories:
- fw_devlink fixes and updates. This has gone through numerous review
cycles and lots of review and testing by lots of different devices.
Hopefully all should be good now, and Saravana will be keeping a
watch for any potential regression on odd embedded systems.
- driver core changes to work to make struct bus_type able to be moved
into read-only memory (i.e. const) The recent work with Rust has
pointed out a number of areas in the driver core where we are
passing around and working with structures that really do not have
to be dynamic at all, and they should be able to be read-only making
things safer overall. This is the contuation of that work (started
last release with kobject changes) in moving struct bus_type to be
constant. We didn't quite make it for this release, but the
remaining patches will be finished up for the release after this
one, but the groundwork has been laid for this effort.
Other than that we have in here:
- debugfs memory leak fixes in some subsystems
- error path cleanups and fixes for some never-able-to-be-hit
codepaths.
- cacheinfo rework and fixes
- Other tiny fixes, full details are in the shortlog
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the large set of driver core changes for 6.3-rc1.
There's a lot of changes this development cycle, most of the work
falls into two different categories:
- fw_devlink fixes and updates. This has gone through numerous review
cycles and lots of review and testing by lots of different devices.
Hopefully all should be good now, and Saravana will be keeping a
watch for any potential regression on odd embedded systems.
- driver core changes to work to make struct bus_type able to be
moved into read-only memory (i.e. const) The recent work with Rust
has pointed out a number of areas in the driver core where we are
passing around and working with structures that really do not have
to be dynamic at all, and they should be able to be read-only
making things safer overall. This is the contuation of that work
(started last release with kobject changes) in moving struct
bus_type to be constant. We didn't quite make it for this release,
but the remaining patches will be finished up for the release after
this one, but the groundwork has been laid for this effort.
Other than that we have in here:
- debugfs memory leak fixes in some subsystems
- error path cleanups and fixes for some never-able-to-be-hit
codepaths.
- cacheinfo rework and fixes
- Other tiny fixes, full details are in the shortlog
All of these have been in linux-next for a while with no reported
problems"
[ Geert Uytterhoeven points out that that last sentence isn't true, and
that there's a pending report that has a fix that is queued up - Linus ]
* tag 'driver-core-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (124 commits)
debugfs: drop inline constant formatting for ERR_PTR(-ERROR)
OPP: fix error checking in opp_migrate_dentry()
debugfs: update comment of debugfs_rename()
i3c: fix device.h kernel-doc warnings
dma-mapping: no need to pass a bus_type into get_arch_dma_ops()
driver core: class: move EXPORT_SYMBOL_GPL() lines to the correct place
Revert "driver core: add error handling for devtmpfs_create_node()"
Revert "devtmpfs: add debug info to handle()"
Revert "devtmpfs: remove return value of devtmpfs_delete_node()"
driver core: cpu: don't hand-override the uevent bus_type callback.
devtmpfs: remove return value of devtmpfs_delete_node()
devtmpfs: add debug info to handle()
driver core: add error handling for devtmpfs_create_node()
driver core: bus: update my copyright notice
driver core: bus: add bus_get_dev_root() function
driver core: bus: constify bus_unregister()
driver core: bus: constify some internal functions
driver core: bus: constify bus_get_kset()
driver core: bus: constify bus_register/unregister_notifier()
driver core: remove private pointer from struct bus_type
...
|
||
|
Linus Torvalds
|
693fed981e |
Char/Misc and other driver subsystem changes for 6.3-rc1
Here is the large set of driver changes for char/misc drivers and other
smaller driver subsystems that flow through this git tree.
Included in here are:
- New IIO drivers and features and improvments in that subsystem
- New hwtracing drivers and additions to that subsystem
- lots of interconnect changes and new drivers as that subsystem seems
under very active development recently. This required also merging
in the icc subsystem changes through this tree.
- FPGA driver updates
- counter subsystem and driver updates
- MHI driver updates
- nvmem driver updates
- documentation updates
- Other smaller driver updates and fixes, full details in the shortlog
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc and other driver subsystem updates from Greg KH:
"Here is the large set of driver changes for char/misc drivers and
other smaller driver subsystems that flow through this git tree.
Included in here are:
- New IIO drivers and features and improvments in that subsystem
- New hwtracing drivers and additions to that subsystem
- lots of interconnect changes and new drivers as that subsystem
seems under very active development recently. This required also
merging in the icc subsystem changes through this tree.
- FPGA driver updates
- counter subsystem and driver updates
- MHI driver updates
- nvmem driver updates
- documentation updates
- Other smaller driver updates and fixes, full details in the
shortlog
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (223 commits)
scripts/tags.sh: fix incompatibility with PCRE2
firmware: coreboot: Remove GOOGLE_COREBOOT_TABLE_ACPI/OF Kconfig entries
mei: lower the log level for non-fatal failed messages
mei: bus: disallow driver match while dismantling device
misc: vmw_balloon: fix memory leak with using debugfs_lookup()
nvmem: stm32: fix OPTEE dependency
dt-bindings: nvmem: qfprom: add IPQ8074 compatible
nvmem: qcom-spmi-sdam: register at device init time
nvmem: rave-sp-eeprm: fix kernel-doc bad line warning
nvmem: stm32: detect bsec pta presence for STM32MP15x
nvmem: stm32: add OP-TEE support for STM32MP13x
nvmem: core: use nvmem_add_one_cell() in nvmem_add_cells_from_of()
nvmem: core: add nvmem_add_one_cell()
nvmem: core: drop the removal of the cells in nvmem_add_cells()
nvmem: core: move struct nvmem_cell_info to nvmem-provider.h
nvmem: core: add an index parameter to the cell
of: property: add #nvmem-cell-cells property
of: property: make #.*-cells optional for simple props
of: base: add of_parse_phandle_with_optional_args()
net: add helper eth_addr_add()
...
|
||
|
Linus Torvalds
|
d2980d8d82 |
There is no particular theme here - mainly quick hits all over the tree.
Most notable is a set of zlib changes from Mikhail Zaslonko which enhances and fixes zlib's use of S390 hardware support: "lib/zlib: Set of s390 DFLTCC related patches for kernel zlib". -----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCY/QC4QAKCRDdBJ7gKXxA jtKdAQCbDCBdY8H45d1fONzQW2UDqCPnOi77MpVUxGL33r+1SAEA807C7rvDEmlf yP1Ft+722fFU5jogVU8ZFh+vapv2/gI= =Q9YK -----END PGP SIGNATURE----- Merge tag 'mm-nonmm-stable-2023-02-20-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull non-MM updates from Andrew Morton: "There is no particular theme here - mainly quick hits all over the tree. Most notable is a set of zlib changes from Mikhail Zaslonko which enhances and fixes zlib's use of S390 hardware support: 'lib/zlib: Set of s390 DFLTCC related patches for kernel zlib'" * tag 'mm-nonmm-stable-2023-02-20-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (55 commits) Update CREDITS file entry for Jesper Juhl sparc: allow PM configs for sparc32 COMPILE_TEST hung_task: print message when hung_task_warnings gets down to zero. arch/Kconfig: fix indentation scripts/tags.sh: fix the Kconfig tags generation when using latest ctags nilfs2: prevent WARNING in nilfs_dat_commit_end() lib/zlib: remove redundation assignement of avail_in dfltcc_gdht() lib/Kconfig.debug: do not enable DEBUG_PREEMPT by default lib/zlib: DFLTCC always switch to software inflate for Z_PACKET_FLUSH option lib/zlib: DFLTCC support inflate with small window lib/zlib: Split deflate and inflate states for DFLTCC lib/zlib: DFLTCC not writing header bits when avail_out == 0 lib/zlib: fix DFLTCC ignoring flush modes when avail_in == 0 lib/zlib: fix DFLTCC not flushing EOBS when creating raw streams lib/zlib: implement switching between DFLTCC and software lib/zlib: adjust offset calculation for dfltcc_state nilfs2: replace WARN_ONs for invalid DAT metadata block requests scripts/spelling.txt: add "exsits" pattern and fix typo instances fs: gracefully handle ->get_block not mapping bh in __mpage_writepage cramfs: Kconfig: fix spelling & punctuation ... |
||
|
Linus Torvalds
|
3822a7c409 |
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
F_SEAL_EXEC") which permits the setting of the memfd execute bit at
memfd creation time, with the option of sealing the state of the X bit.
- Peter Xu adds a patch series ("mm/hugetlb: Make huge_pte_offset()
thread-safe for pmd unshare") which addresses a rare race condition
related to PMD unsharing.
- Several folioification patch serieses from Matthew Wilcox, Vishal
Moola, Sidhartha Kumar and Lorenzo Stoakes
- Johannes Weiner has a series ("mm: push down lock_page_memcg()") which
does perform some memcg maintenance and cleanup work.
- SeongJae Park has added DAMOS filtering to DAMON, with the series
"mm/damon/core: implement damos filter". These filters provide users
with finer-grained control over DAMOS's actions. SeongJae has also done
some DAMON cleanup work.
- Kairui Song adds a series ("Clean up and fixes for swap").
- Vernon Yang contributed the series "Clean up and refinement for maple
tree".
- Yu Zhao has contributed the "mm: multi-gen LRU: memcg LRU" series. It
adds to MGLRU an LRU of memcgs, to improve the scalability of global
reclaim.
- David Hildenbrand has added some userfaultfd cleanup work in the
series "mm: uffd-wp + change_protection() cleanups".
- Christoph Hellwig has removed the generic_writepages() library
function in the series "remove generic_writepages".
- Baolin Wang has performed some maintenance on the compaction code in
his series "Some small improvements for compaction".
- Sidhartha Kumar is doing some maintenance work on struct page in his
series "Get rid of tail page fields".
- David Hildenbrand contributed some cleanup, bugfixing and
generalization of pte management and of pte debugging in his series "mm:
support __HAVE_ARCH_PTE_SWP_EXCLUSIVE on all architectures with swap
PTEs".
- Mel Gorman and Neil Brown have removed the __GFP_ATOMIC allocation
flag in the series "Discard __GFP_ATOMIC".
- Sergey Senozhatsky has improved zsmalloc's memory utilization with his
series "zsmalloc: make zspage chain size configurable".
- Joey Gouly has added prctl() support for prohibiting the creation of
writeable+executable mappings. The previous BPF-based approach had
shortcomings. See "mm: In-kernel support for memory-deny-write-execute
(MDWE)".
- Waiman Long did some kmemleak cleanup and bugfixing in the series
"mm/kmemleak: Simplify kmemleak_cond_resched() & fix UAF".
- T.J. Alumbaugh has contributed some MGLRU cleanup work in his series
"mm: multi-gen LRU: improve".
- Jiaqi Yan has provided some enhancements to our memory error
statistics reporting, mainly by presenting the statistics on a per-node
basis. See the series "Introduce per NUMA node memory error
statistics".
- Mel Gorman has a second and hopefully final shot at fixing a CPU-hog
regression in compaction via his series "Fix excessive CPU usage during
compaction".
- Christoph Hellwig does some vmalloc maintenance work in the series
"cleanup vfree and vunmap".
- Christoph Hellwig has removed block_device_operations.rw_page() in ths
series "remove ->rw_page".
- We get some maple_tree improvements and cleanups in Liam Howlett's
series "VMA tree type safety and remove __vma_adjust()".
- Suren Baghdasaryan has done some work on the maintainability of our
vm_flags handling in the series "introduce vm_flags modifier functions".
- Some pagemap cleanup and generalization work in Mike Rapoport's series
"mm, arch: add generic implementation of pfn_valid() for FLATMEM" and
"fixups for generic implementation of pfn_valid()"
- Baoquan He has done some work to make /proc/vmallocinfo and
/proc/kcore better represent the real state of things in his series
"mm/vmalloc.c: allow vread() to read out vm_map_ram areas".
- Jason Gunthorpe rationalized the GUP system's interface to the rest of
the kernel in the series "Simplify the external interface for GUP".
- SeongJae Park wishes to migrate people from DAMON's debugfs interface
over to its sysfs interface. To support this, we'll temporarily be
printing warnings when people use the debugfs interface. See the series
"mm/damon: deprecate DAMON debugfs interface".
- Andrey Konovalov provided the accurately named "lib/stackdepot: fixes
and clean-ups" series.
- Huang Ying has provided a dramatic reduction in migration's TLB flush
IPI rates with the series "migrate_pages(): batch TLB flushing".
- Arnd Bergmann has some objtool fixups in "objtool warning fixes".
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Merge tag 'mm-stable-2023-02-20-13-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
F_SEAL_EXEC") which permits the setting of the memfd execute bit at
memfd creation time, with the option of sealing the state of the X
bit.
- Peter Xu adds a patch series ("mm/hugetlb: Make huge_pte_offset()
thread-safe for pmd unshare") which addresses a rare race condition
related to PMD unsharing.
- Several folioification patch serieses from Matthew Wilcox, Vishal
Moola, Sidhartha Kumar and Lorenzo Stoakes
- Johannes Weiner has a series ("mm: push down lock_page_memcg()")
which does perform some memcg maintenance and cleanup work.
- SeongJae Park has added DAMOS filtering to DAMON, with the series
"mm/damon/core: implement damos filter".
These filters provide users with finer-grained control over DAMOS's
actions. SeongJae has also done some DAMON cleanup work.
- Kairui Song adds a series ("Clean up and fixes for swap").
- Vernon Yang contributed the series "Clean up and refinement for maple
tree".
- Yu Zhao has contributed the "mm: multi-gen LRU: memcg LRU" series. It
adds to MGLRU an LRU of memcgs, to improve the scalability of global
reclaim.
- David Hildenbrand has added some userfaultfd cleanup work in the
series "mm: uffd-wp + change_protection() cleanups".
- Christoph Hellwig has removed the generic_writepages() library
function in the series "remove generic_writepages".
- Baolin Wang has performed some maintenance on the compaction code in
his series "Some small improvements for compaction".
- Sidhartha Kumar is doing some maintenance work on struct page in his
series "Get rid of tail page fields".
- David Hildenbrand contributed some cleanup, bugfixing and
generalization of pte management and of pte debugging in his series
"mm: support __HAVE_ARCH_PTE_SWP_EXCLUSIVE on all architectures with
swap PTEs".
- Mel Gorman and Neil Brown have removed the __GFP_ATOMIC allocation
flag in the series "Discard __GFP_ATOMIC".
- Sergey Senozhatsky has improved zsmalloc's memory utilization with
his series "zsmalloc: make zspage chain size configurable".
- Joey Gouly has added prctl() support for prohibiting the creation of
writeable+executable mappings.
The previous BPF-based approach had shortcomings. See "mm: In-kernel
support for memory-deny-write-execute (MDWE)".
- Waiman Long did some kmemleak cleanup and bugfixing in the series
"mm/kmemleak: Simplify kmemleak_cond_resched() & fix UAF".
- T.J. Alumbaugh has contributed some MGLRU cleanup work in his series
"mm: multi-gen LRU: improve".
- Jiaqi Yan has provided some enhancements to our memory error
statistics reporting, mainly by presenting the statistics on a
per-node basis. See the series "Introduce per NUMA node memory error
statistics".
- Mel Gorman has a second and hopefully final shot at fixing a CPU-hog
regression in compaction via his series "Fix excessive CPU usage
during compaction".
- Christoph Hellwig does some vmalloc maintenance work in the series
"cleanup vfree and vunmap".
- Christoph Hellwig has removed block_device_operations.rw_page() in
ths series "remove ->rw_page".
- We get some maple_tree improvements and cleanups in Liam Howlett's
series "VMA tree type safety and remove __vma_adjust()".
- Suren Baghdasaryan has done some work on the maintainability of our
vm_flags handling in the series "introduce vm_flags modifier
functions".
- Some pagemap cleanup and generalization work in Mike Rapoport's
series "mm, arch: add generic implementation of pfn_valid() for
FLATMEM" and "fixups for generic implementation of pfn_valid()"
- Baoquan He has done some work to make /proc/vmallocinfo and
/proc/kcore better represent the real state of things in his series
"mm/vmalloc.c: allow vread() to read out vm_map_ram areas".
- Jason Gunthorpe rationalized the GUP system's interface to the rest
of the kernel in the series "Simplify the external interface for
GUP".
- SeongJae Park wishes to migrate people from DAMON's debugfs interface
over to its sysfs interface. To support this, we'll temporarily be
printing warnings when people use the debugfs interface. See the
series "mm/damon: deprecate DAMON debugfs interface".
- Andrey Konovalov provided the accurately named "lib/stackdepot: fixes
and clean-ups" series.
- Huang Ying has provided a dramatic reduction in migration's TLB flush
IPI rates with the series "migrate_pages(): batch TLB flushing".
- Arnd Bergmann has some objtool fixups in "objtool warning fixes".
* tag 'mm-stable-2023-02-20-13-37' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (505 commits)
include/linux/migrate.h: remove unneeded externs
mm/memory_hotplug: cleanup return value handing in do_migrate_range()
mm/uffd: fix comment in handling pte markers
mm: change to return bool for isolate_movable_page()
mm: hugetlb: change to return bool for isolate_hugetlb()
mm: change to return bool for isolate_lru_page()
mm: change to return bool for folio_isolate_lru()
objtool: add UACCESS exceptions for __tsan_volatile_read/write
kmsan: disable ftrace in kmsan core code
kasan: mark addr_has_metadata __always_inline
mm: memcontrol: rename memcg_kmem_enabled()
sh: initialize max_mapnr
m68k/nommu: add missing definition of ARCH_PFN_OFFSET
mm: percpu: fix incorrect size in pcpu_obj_full_size()
maple_tree: reduce stack usage with gcc-9 and earlier
mm: page_alloc: call panic() when memoryless node allocation fails
mm: multi-gen LRU: avoid futile retries
migrate_pages: move THP/hugetlb migration support check to simplify code
migrate_pages: batch flushing TLB
migrate_pages: share more code between _unmap and _move
...
|
||
Song Chen
|
bd78acc89d |
kernel/trace: extract common part in process_fetch_insn
Each probe has an instance of process_fetch_insn respectively, but they have something in common. This patch aims to extract the common part into process_common_fetch_insn which can be shared by each probe, and they only need to focus on their special cases. Signed-off-by: Song Chen <chensong_2000@189.cn> Suggested-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> |
||
|
Song Chen
|
672a2bf840 |
kernel/trace: Provide default impelentations defined in trace_probe_tmpl.h
There are 6 function definitions in trace_probe_tmpl.h, they are: 1, fetch_store_strlen 2, fetch_store_string 3, fetch_store_strlen_user 4, fetch_store_string_user 5, probe_mem_read 6, probe_mem_read_user Every C file which includes trace_probe_tmpl.h has to implement them, otherwise it gets warnings and errors. However, some of them are identical, like kprobe and eprobe, as a result, there is a lot redundant code in those 2 files. This patch would like to provide default behaviors for those functions which kprobe and eprobe can share by just including trace_probe_kernel.h with trace_probe_tmpl.h together. It removes redundant code, increases readability, and more importantly, makes it easier to introduce a new feature based on trace probe (it's possible). Link: https://lore.kernel.org/all/1672382018-18347-1-git-send-email-chensong_2000@189.cn/ Signed-off-by: Song Chen <chensong_2000@189.cn> Reported-by: kernel test robot <lkp@intel.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> |
||
|
Song Chen
|
196b6389a3 |
kernel/trace: Introduce trace_probe_print_args and use it in *probes
print_probe_args is currently inplemented in trace_probe_tmpl.h and included by *probes, as a result, each probe has an identical copy. This patch will move it to trace_probe.c as an new API, each probe calls it to print their args in trace file. Link: https://lore.kernel.org/all/1672382000-18304-1-git-send-email-chensong_2000@189.cn/ Signed-off-by: Song Chen <chensong_2000@189.cn> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> |
||
|
Linus Torvalds
|
fcc77d7c8e |
sysctl-6.3-rc1
Just one fix which just came in, this just hit linux-next just yesterday with a success build report. But since its a fix and reviewed I think its good to take in. Sadly the eager beavers willing to help with the sysctl moves have slowed. -----BEGIN PGP SIGNATURE----- iQJGBAABCgAwFiEENnNq2KuOejlQLZofziMdCjCSiKcFAmP2ndUSHG1jZ3JvZkBr ZXJuZWwub3JnAAoJEM4jHQowkoinyLYQAM8HBVhPcXi4gp2DHbUY6Bd6MeXsQ4Mk EulLxYZXJFIfgXcKYN9IMNcPtdYJ4xnGWLNzPoixiMb61KY6Cjw+l62AtNBiwvxw /GliVtrwz0EU1Bw7vilm4UBn/BUH7vXk7HMRExBwMXLwY7y11TYWMtb6+V+7Zzf1 VImyPZ1MlfOYlvgRUdaNUnuvHLE19x2pdVG/oRDLez9gs38FYEAiBd34adUKDf2U FxZBQPd+4xaEht2sdTp0ws52YoHHx3k9i8mSiRwQqsiydKMk32iD59hXxeA4r3Oc lzf10VgN7EdSDCTzdfDYhpIxq04RuA1s1gtXU/eePMqfJZenR0FbFHhcHmIhon4j D5EuON5eMISzzT9h9DSI5k7kXPDv0iIZPb/vunAfklC1UPVv8uZ2/RV6M1jNR1Bn S5WYURzdlwpS+4+uwl479061W1YnnhmtwVAMNw+AzfTxv9eQQ3oa2X70L0xirfDx xJxZS8lzc1rLgL2y3lO2/8W1yI6hA0xhME+pxuopVTMWcXt6aG4efq3tIrxEx3Kf 0HukI1KbN6O/Rmf7hqprHGsfIq4EP4IEOk2XIvMSOrDyf2fOXVGCQQQ0eMOw4ejR WTtHp1TW2byA8lSOp4K+rMZamt9Mokci0tOEc/52OXFA2jDtq4KZNHvHAOdZv4/Y kLMflEpOmU++ =Txc3 -----END PGP SIGNATURE----- Merge tag 'sysctl-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux Pull sysctl update from Luis Chamberlain: "Just one fix which just came in. Sadly the eager beavers willing to help with the sysctl moves have slowed" * tag 'sysctl-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: sysctl: fix proc_dobool() usability |
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|
Linus Torvalds
|
c538944d8e |
modules-6.3-rc1
Nothing exciting at all for modules for v6.3. The biggest change is
just the change of INSTALL_MOD_DIR from "extra" to "updates" which
I found lingered for ages for no good reason while testing the CXL
mock driver [0]. The CXL mock driver has no kconfig integration and requires
building an external module... and re-building the *rest* of the production
drivers. This mock driver when loaded but not the production ones will
crash. All this crap can obviously be fixed by integrating kconfig
semantics into such test module, however that's not desirable by
the maintainer, and so sensible defaults must be used to ensure a
default "make modules_install" will suffice for most distros which
do not have a file like /etc/depmod.d/dist.conf with something like
`search updates extra built-in`. Since most distros rely on kmod and
since its inception the "updates" directory is always in the search
path it makes more sense to use that than the "extra" which only
*some* RH based systems rely on. All this stuff has been on linux-next
for a while.
For v6.4 I already have queued some initial work by Song Liu which gets
us slowly going to a place where we *may* see a generic allocator for
huge pages for module text to avoid direct map fragmentation *and*
reduce iTLB pressure. That work is in its initial stages, no allocator
work is done yet. This is all just prep work. Fortunately Thomas Gleixner
has helped convince Song that modules *need* to be *requirement* if we
are going to see any special allocator touch x86. So who knows... maybe
around v6.5 we'll start seeing some *real* performance numbers of the
effect of using huge pages for something other than eBPF toys.
For v6.4 also, you may start seeing patches from Nick Alcock on different
trees and modules-next which aims at extending kallsyms *eventually* to provide
clearer address to symbol lookups. The claim is that this is a *great* *feature*
tracing tools are dying to have so they can for instance disambiguate symbols as
coming from modules or from other parts of the kernel. I'm still waiting to see
proper too usage of such stuff, but *how* we lay this out is still being ironed
out. Part of the initial work I've been pushing for is to help upkeep our
modules build optimizations, so being mindful about the work by Masahiro Yamada
on commit
|
||
|
Linus Torvalds
|
7dd86cf801 |
Livepatching changes for 6.3
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEESH4wyp42V4tXvYsjUqAMR0iAlPIFAmP01jEACgkQUqAMR0iA lPIH1g/9G3CLt9+by3d0FiS5AsbK6vohZRzKxqCTyX9b2p2sLQuiTu8TodJ9IOur axpaOuPOIjQ253yfqrYL2YZHdfr/632nSTGsT18p7k8a9m6ghQ6cW+uq23Ro9W43 uubjyvFMTeLBnkDTSJquciENdMtyPwyiTN0+ZvDOsAOKoBt7i3Rt7lcorjDuALwb 2SQ80qCjYLy1r6mkQyy3IhLQVSeRiaqkR6IAdxR5EeXmbSi0YYh0Jxz5AzPMeDw6 F1w7Whe6Vf8vf4JHVDqNazB3f+JH4JrmRvk6LxlGU33z9uJac4NIbboGDXzRP21h A0UGqwJimeoi8dji9Y3cXRIYRc+HqyqL0IadSHHLCou746/CJDBQN1EjNNBgZgu6 cTELnRL9TsV9tWt9boqbMK0KfCFnOsGPMDAXXDH5G/ZUsvyDweGMNelgNTXURHFX f1cTfdDj2T/iG3XDZHf35/rSI56BDQJcJ1G1fQc3sl+G9jDGxX3PBJYNAUpvC6cy iewDeROcAAXmwUqaC8epJJfN2m9zJJpDgR1t4mZTnKkmRF090ZApyDA4M769kn0J ioHvE8Pe9+GjY8syGzq3EJRyQnfXgTbAyKfiTpGWefLPrgkQ9LfFQRQ1S21sy483 Bz/KrNl1tMWFsSmngNYaiOZifjxVj8pYoIz1W2s0ore9sYu78YM= =xdQJ -----END PGP SIGNATURE----- Merge tag 'livepatching-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching Pull livepatching updates from Petr Mladek: - Allow reloading a livepatched module by clearing livepatch-specific relocations in the livepatch module. Otherwise, the repeated load would fail on consistency checks. * tag 'livepatching-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: livepatch,x86: Clear relocation targets on a module removal x86/module: remove unused code in __apply_relocate_add |
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|
Linus Torvalds
|
d876315445 |
printk changes for 6.3
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEESH4wyp42V4tXvYsjUqAMR0iAlPIFAmP0vCsACgkQUqAMR0iA lPKjHxAAldxJr7B5XZWRbYOw9VAQ/Qv0whfZwJ0Wl1crhx/PrB6JBkTbz/vHMj+c vZSQXOID5g858+iR7KdvejWFTnr7RdBP28rkRj6zijXYBAlrNwQtV+aXS/AHyCjR 2/cMuP6+7vqaVp8BqDyToQrZil6Us5Io/a6l4C0RQp1nQmY5A8qLg7kdtpPOcIoW yBWY+5pMJVfryr95yOjE7WxBVjpIh5eo/D1WoexoxcJNsHpe/2mAvXfZMNLMHBKL Io0RSZfrD0Pw+oHyhpX7bLxRbmYO8kajBMtMvPa2NIMQyk/Cm+2SSvDS39n1B4vm eXym5hUfSZIZUGV1cegia/exZgfvj3yCEc+8HJ0WEenlFruxXCtqwPbFwtkjsznK EjgOEehygaHGiQ7LY9cEA5ON5e7MIGsYUp+EAS2vNja81yBmAK89TlOtezzKIyU2 U4q4UUsXi4TMMNzvNu0bs4gEu2HOCTovE1O0h7C56haoVHSWWqexepvRwNhAWELY ztQz5hd8S7UIILGDTnx8nCc7W8RddfLZfl2XBuzr9gWp79SqeaGKOk10jkjBkatC 1STqkCN+Jwx5uIdF8LLg4EaNJ8QQCdDaCLvQpSJbQpFIYz7KCwk/hhczdCLsWrrp feGEwSD5u2ek5cEk840WfvKlle6fsqtLb6m98UV2/WJpjW9qtSo= =cVoE -----END PGP SIGNATURE----- Merge tag 'printk-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux Pull printk updates from Petr Mladek: - Refactor printk code for formatting messages that are shown on consoles. This is a preparatory step for introducing atomic consoles which could not share the global buffers - Prevent memory leak when removing printk index in debugfs - Dump also the newest printk message by the sample gdbmacro - Fix a compiler warning * tag 'printk-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: printf: fix errname.c list kernel/printk/index.c: fix memory leak with using debugfs_lookup() printk: Use scnprintf() to print the message about the dropped messages on a console printk: adjust string limit macros printk: use printk_buffers for devkmsg printk: introduce console_prepend_dropped() for dropped messages printk: introduce printk_get_next_message() and printk_message printk: introduce struct printk_buffers console: Document struct console console: Use BIT() macros for @flags values printk: move size limit macros into internal.h docs: gdbmacros: print newest record |
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|
Linus Torvalds
|
2b79eb73e2 |
probes updates for 6.3:
- Skip negative return code check for snprintf in eprobe. - Add recursive call test cases for kprobe unit test - Add 'char' type to probe events to show it as the character instead of value. - Update kselftest kprobe-event testcase to ignore '__pfx_' symbols. - Fix kselftest to check filter on eprobe event correctly. - Add filter on eprobe to the README file in tracefs. - Fix optprobes to check whether there is 'under unoptimizing' optprobe when optimizing another kprobe correctly. - Fix optprobe to check whether there is 'under unoptimizing' optprobe when fetching the original instruction correctly. - Fix optprobe to free 'forcibly unoptimized' optprobe correctly. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEh7BulGwFlgAOi5DV2/sHvwUrPxsFAmP0JdYACgkQ2/sHvwUr Pxt6sQf/TD9Kwqx3XG1tnLPev6yt2nuggUippHwWUFHlJtMyUaLV8aKFqByyEe+j tCQvrFIIJq242xg0Jac/MAf2exlWG9jsmVZPmvC1YzepOAbjXu2eBkIS7LsbeHjF JJypNnEceffWCpNoD6nlvR0xWXenqRbZJwdsGqo3u+fXnzTurEMY2GU2xOyv39tv S1uNLPANJxdMb/2iUsUE3hMbe82dqr8zPcApqWFtTBB6QPHI3B2SjuQHpQxwbTPl bzAl0yQkLSQXprVzT7xJ4xLnzbl1ljgJBci5aX8BFF+VD9oYkypdfYVczBH5VsP9 E3eT9T9lRf4Q99EqxNy5uw7NqQXGQg== =CMPb -----END PGP SIGNATURE----- Merge tag 'probes-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull kprobes updates from Masami Hiramatsu: - Skip negative return code check for snprintf in eprobe - Add recursive call test cases for kprobe unit test - Add 'char' type to probe events to show it as the character instead of value - Update kselftest kprobe-event testcase to ignore '__pfx_' symbols - Fix kselftest to check filter on eprobe event correctly - Add filter on eprobe to the README file in tracefs - Fix optprobes to check whether there is 'under unoptimizing' optprobe when optimizing another kprobe correctly - Fix optprobe to check whether there is 'under unoptimizing' optprobe when fetching the original instruction correctly - Fix optprobe to free 'forcibly unoptimized' optprobe correctly * tag 'probes-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing/eprobe: no need to check for negative ret value for snprintf test_kprobes: Add recursed kprobe test case tracing/probe: add a char type to show the character value of traced arguments selftests/ftrace: Fix probepoint testcase to ignore __pfx_* symbols selftests/ftrace: Fix eprobe syntax test case to check filter support tracing/eprobe: Fix to add filter on eprobe description in README file x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range x86/kprobes: Fix __recover_optprobed_insn check optimizing logic kprobes: Fix to handle forcibly unoptimized kprobes on freeing_list |
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Thomas Weißschuh
|
70ba26cbe0 |
cpufreq: schedutil: make kobj_type structure constant
Since commit
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Linus Torvalds
|
b72b5fecc1 |
tracing updates for 6.3:
- Add function names as a way to filter function addresses - Add sample module to test ftrace ops and dynamic trampolines - Allow stack traces to be passed from beginning event to end event for synthetic events. This will allow seeing the stack trace of when a task is scheduled out and recorded when it gets scheduled back in. - Add trace event helper __get_buf() to use as a temporary buffer when printing out trace event output. - Add kernel command line to create trace instances on boot up. - Add enabling of events to instances created at boot up. - Add trace_array_puts() to write into instances. - Allow boot instances to take a snapshot at the end of boot up. - Allow live patch modules to include trace events - Minor fixes and clean ups -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCY/PaaBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qh5iAPoD0LKZzD33rhO5Ec4hoexE0DkqycP3 dvmOMbCBL8GkxwEA+d2gLz/EquSFm166hc4D79Sn3geCqvkwmy8vQWVjIQc= =M82D -----END PGP SIGNATURE----- Merge tag 'trace-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing updates from Steven Rostedt: - Add function names as a way to filter function addresses - Add sample module to test ftrace ops and dynamic trampolines - Allow stack traces to be passed from beginning event to end event for synthetic events. This will allow seeing the stack trace of when a task is scheduled out and recorded when it gets scheduled back in. - Add trace event helper __get_buf() to use as a temporary buffer when printing out trace event output. - Add kernel command line to create trace instances on boot up. - Add enabling of events to instances created at boot up. - Add trace_array_puts() to write into instances. - Allow boot instances to take a snapshot at the end of boot up. - Allow live patch modules to include trace events - Minor fixes and clean ups * tag 'trace-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (31 commits) tracing: Remove unnecessary NULL assignment tracepoint: Allow livepatch module add trace event tracing: Always use canonical ftrace path tracing/histogram: Fix stacktrace histogram Documententation tracing/histogram: Fix stacktrace key tracing/histogram: Fix a few problems with stacktrace variable printing tracing: Add BUILD_BUG() to make sure stacktrace fits in strings tracing/histogram: Don't use strlen to find length of stacktrace variables tracing: Allow boot instances to have snapshot buffers tracing: Add trace_array_puts() to write into instance tracing: Add enabling of events to boot instances tracing: Add creation of instances at boot command line tracing: Fix trace_event_raw_event_synth() if else statement samples: ftrace: Make some global variables static ftrace: sample: avoid open-coded 64-bit division samples: ftrace: Include the nospec-branch.h only for x86 tracing: Acquire buffer from temparary trace sequence tracing/histogram: Wrap remaining shell snippets in code blocks tracing/osnoise: No need for schedule_hrtimeout range bpf/tracing: Use stage6 of tracing to not duplicate macros ... |
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|
Linus Torvalds
|
9191423872 |
tracing: Fix race that causes a warning of corrupt ring buffer
With the change that allows to read the "trace" file without disabling writing to the ring buffer, there was an integrity check of the ring buffer in the iterator read code, that expected the ring buffer to be write disabled. This caused the integrity check to trigger when stress reading the "trace" file while writing was happening. The integrity check is a bit aggressive (and has never triggered in practice). Change it so that it checks just the integrity of the linked pages without clearing the flags inside the pointers. This removes the warning that was being triggered. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCY+05KBQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qm2uAQDpygn75IrW1aApx5wySl2GKo0dSjg9 PaQVTYFYLMxIqgEA7oZQFQwokmZrIThqcQ+JA710+C1xecKYUl+apGza9Qk= =aTTM -----END PGP SIGNATURE----- Merge tag 'trace-v6.2-rc7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace Pull tracing fix from Steven Rostedt: "Fix race that causes a warning of corrupt ring buffer With the change that allows to read the "trace" file without disabling writing to the ring buffer, there was an integrity check of the ring buffer in the iterator read code, that expected the ring buffer to be write disabled. This caused the integrity check to trigger when stress reading the "trace" file while writing was happening. The integrity check is a bit aggressive (and has never triggered in practice). Change it so that it checks just the integrity of the linked pages without clearing the flags inside the pointers. This removes the warning that was being triggered" [ Heh. This was supposed to have gone in last week before the 6.2 release, but Steven forgot to actually add me to the participants of the pull request, so here it is, a week later - Linus ] * tag 'trace-v6.2-rc7-3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: ring-buffer: Handle race between rb_move_tail and rb_check_pages |
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Linus Torvalds
|
f3dd0c5337 |
bpf: add missing header file include
Commit |
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Randy Dunlap
|
9b07d27d0f |
swiotlb: mark swiotlb_memblock_alloc() as __init
swiotlb_memblock_alloc() calls memblock_alloc(), which calls
(__init) memblock_alloc_try_nid(). However, swiotlb_membloc_alloc()
can be marked as __init since it is only called by swiotlb_init_remap(),
which is already marked as __init. This prevents a modpost build
warning/error:
WARNING: modpost: vmlinux.o: section mismatch in reference: swiotlb_memblock_alloc (section: .text) -> memblock_alloc_try_nid (section: .init.text)
WARNING: modpost: vmlinux.o: section mismatch in reference: swiotlb_memblock_alloc (section: .text) -> memblock_alloc_try_nid (section: .init.text)
This fixes the build warning/error seen on ARM64, PPC64, S390, i386,
and x86_64.
Fixes:
|
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Linus Torvalds
|
5b7c4cabbb |
Networking changes for 6.3.
Core
----
- Add dedicated kmem_cache for typical/small skb->head, avoid having
to access struct page at kfree time, and improve memory use.
- Introduce sysctl to set default RPS configuration for new netdevs.
- Define Netlink protocol specification format which can be used
to describe messages used by each family and auto-generate parsers.
Add tools for generating kernel data structures and uAPI headers.
- Expose all net/core sysctls inside netns.
- Remove 4s sleep in netpoll if carrier is instantly detected on boot.
- Add configurable limit of MDB entries per port, and port-vlan.
- Continue populating drop reasons throughout the stack.
- Retire a handful of legacy Qdiscs and classifiers.
Protocols
---------
- Support IPv4 big TCP (TSO frames larger than 64kB).
- Add IP_LOCAL_PORT_RANGE socket option, to control local port range
on socket by socket basis.
- Track and report in procfs number of MPTCP sockets used.
- Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP
path manager.
- IPv6: don't check net.ipv6.route.max_size and rely on garbage
collection to free memory (similarly to IPv4).
- Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).
- ICMP: add per-rate limit counters.
- Add support for user scanning requests in ieee802154.
- Remove static WEP support.
- Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
reporting.
- WiFi 7 EHT channel puncturing support (client & AP).
BPF
---
- Add a rbtree data structure following the "next-gen data structure"
precedent set by recently added linked list, that is, by using
kfunc + kptr instead of adding a new BPF map type.
- Expose XDP hints via kfuncs with initial support for RX hash and
timestamp metadata.
- Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key
to better support decap on GRE tunnel devices not operating
in collect metadata.
- Improve x86 JIT's codegen for PROBE_MEM runtime error checks.
- Remove the need for trace_printk_lock for bpf_trace_printk
and bpf_trace_vprintk helpers.
- Extend libbpf's bpf_tracing.h support for tracing arguments of
kprobes/uprobes and syscall as a special case.
- Significantly reduce the search time for module symbols
by livepatch and BPF.
- Enable cpumasks to be used as kptrs, which is useful for tracing
programs tracking which tasks end up running on which CPUs in
different time intervals.
- Add support for BPF trampoline on s390x and riscv64.
- Add capability to export the XDP features supported by the NIC.
- Add __bpf_kfunc tag for marking kernel functions as kfuncs.
- Add cgroup.memory=nobpf kernel parameter option to disable BPF
memory accounting for container environments.
Netfilter
---------
- Remove the CLUSTERIP target. It has been marked as obsolete
for years, and we still have WARN splats wrt. races of
the out-of-band /proc interface installed by this target.
- Add 'destroy' commands to nf_tables. They are identical to
the existing 'delete' commands, but do not return an error if
the referenced object (set, chain, rule...) did not exist.
Driver API
----------
- Improve cpumask_local_spread() locality to help NICs set the right
IRQ affinity on AMD platforms.
- Separate C22 and C45 MDIO bus transactions more clearly.
- Introduce new DCB table to control DSCP rewrite on egress.
- Support configuration of Physical Layer Collision Avoidance (PLCA)
Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
shared medium Ethernet.
- Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
preemption of low priority frames by high priority frames.
- Add support for controlling MACSec offload using netlink SET.
- Rework devlink instance refcounts to allow registration and
de-registration under the instance lock. Split the code into multiple
files, drop some of the unnecessarily granular locks and factor out
common parts of netlink operation handling.
- Add TX frame aggregation parameters (for USB drivers).
- Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
messages with notifications for debug.
- Allow offloading of UDP NEW connections via act_ct.
- Add support for per action HW stats in TC.
- Support hardware miss to TC action (continue processing in SW from
a specific point in the action chain).
- Warn if old Wireless Extension user space interface is used with
modern cfg80211/mac80211 drivers. Do not support Wireless Extensions
for Wi-Fi 7 devices at all. Everyone should switch to using nl80211
interface instead.
- Improve the CAN bit timing configuration. Use extack to return error
messages directly to user space, update the SJW handling, including
the definition of a new default value that will benefit CAN-FD
controllers, by increasing their oscillator tolerance.
New hardware / drivers
----------------------
- Ethernet:
- nVidia BlueField-3 support (control traffic driver)
- Ethernet support for imx93 SoCs
- Motorcomm yt8531 gigabit Ethernet PHY
- onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
- Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
- Amlogic gxl MDIO mux
- WiFi:
- RealTek RTL8188EU (rtl8xxxu)
- Qualcomm Wi-Fi 7 devices (ath12k)
- CAN:
- Renesas R-Car V4H
Drivers
-------
- Bluetooth:
- Set Per Platform Antenna Gain (PPAG) for Intel controllers.
- Ethernet NICs:
- Intel (1G, igc):
- support TSN / Qbv / packet scheduling features of i226 model
- Intel (100G, ice):
- use GNSS subsystem instead of TTY
- multi-buffer XDP support
- extend support for GPIO pins to E823 devices
- nVidia/Mellanox:
- update the shared buffer configuration on PFC commands
- implement PTP adjphase function for HW offset control
- TC support for Geneve and GRE with VF tunnel offload
- more efficient crypto key management method
- multi-port eswitch support
- Netronome/Corigine:
- add DCB IEEE support
- support IPsec offloading for NFP3800
- Freescale/NXP (enetc):
- enetc: support XDP_REDIRECT for XDP non-linear buffers
- enetc: improve reconfig, avoid link flap and waiting for idle
- enetc: support MAC Merge layer
- Other NICs:
- sfc/ef100: add basic devlink support for ef100
- ionic: rx_push mode operation (writing descriptors via MMIO)
- bnxt: use the auxiliary bus abstraction for RDMA
- r8169: disable ASPM and reset bus in case of tx timeout
- cpsw: support QSGMII mode for J721e CPSW9G
- cpts: support pulse-per-second output
- ngbe: add an mdio bus driver
- usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
- r8152: handle devices with FW with NCM support
- amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
- virtio-net: support multi buffer XDP
- virtio/vsock: replace virtio_vsock_pkt with sk_buff
- tsnep: XDP support
- Ethernet high-speed switches:
- nVidia/Mellanox (mlxsw):
- add support for latency TLV (in FW control messages)
- Microchip (sparx5):
- separate explicit and implicit traffic forwarding rules, make
the implicit rules always active
- add support for egress DSCP rewrite
- IS0 VCAP support (Ingress Classification)
- IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.)
- ES2 VCAP support (Egress Access Control)
- support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1)
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- add MAB (port auth) offload support
- enable PTP receive for mv88e6390
- NXP (ocelot):
- support MAC Merge layer
- support for the the vsc7512 internal copper phys
- Microchip:
- lan9303: convert to PHYLINK
- lan966x: support TC flower filter statistics
- lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
- lan937x: support Credit Based Shaper configuration
- ksz9477: support Energy Efficient Ethernet
- other:
- qca8k: convert to regmap read/write API, use bulk operations
- rswitch: Improve TX timestamp accuracy
- Intel WiFi (iwlwifi):
- EHT (Wi-Fi 7) rate reporting
- STEP equalizer support: transfer some STEP (connection to radio
on platforms with integrated wifi) related parameters from the
BIOS to the firmware.
- Qualcomm 802.11ax WiFi (ath11k):
- IPQ5018 support
- Fine Timing Measurement (FTM) responder role support
- channel 177 support
- MediaTek WiFi (mt76):
- per-PHY LED support
- mt7996: EHT (Wi-Fi 7) support
- Wireless Ethernet Dispatch (WED) reset support
- switch to using page pool allocator
- RealTek WiFi (rtw89):
- support new version of Bluetooth co-existance
- Mobile:
- rmnet: support TX aggregation.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- Add dedicated kmem_cache for typical/small skb->head, avoid having
to access struct page at kfree time, and improve memory use.
- Introduce sysctl to set default RPS configuration for new netdevs.
- Define Netlink protocol specification format which can be used to
describe messages used by each family and auto-generate parsers.
Add tools for generating kernel data structures and uAPI headers.
- Expose all net/core sysctls inside netns.
- Remove 4s sleep in netpoll if carrier is instantly detected on
boot.
- Add configurable limit of MDB entries per port, and port-vlan.
- Continue populating drop reasons throughout the stack.
- Retire a handful of legacy Qdiscs and classifiers.
Protocols:
- Support IPv4 big TCP (TSO frames larger than 64kB).
- Add IP_LOCAL_PORT_RANGE socket option, to control local port range
on socket by socket basis.
- Track and report in procfs number of MPTCP sockets used.
- Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
manager.
- IPv6: don't check net.ipv6.route.max_size and rely on garbage
collection to free memory (similarly to IPv4).
- Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).
- ICMP: add per-rate limit counters.
- Add support for user scanning requests in ieee802154.
- Remove static WEP support.
- Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
reporting.
- WiFi 7 EHT channel puncturing support (client & AP).
BPF:
- Add a rbtree data structure following the "next-gen data structure"
precedent set by recently added linked list, that is, by using
kfunc + kptr instead of adding a new BPF map type.
- Expose XDP hints via kfuncs with initial support for RX hash and
timestamp metadata.
- Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
better support decap on GRE tunnel devices not operating in collect
metadata.
- Improve x86 JIT's codegen for PROBE_MEM runtime error checks.
- Remove the need for trace_printk_lock for bpf_trace_printk and
bpf_trace_vprintk helpers.
- Extend libbpf's bpf_tracing.h support for tracing arguments of
kprobes/uprobes and syscall as a special case.
- Significantly reduce the search time for module symbols by
livepatch and BPF.
- Enable cpumasks to be used as kptrs, which is useful for tracing
programs tracking which tasks end up running on which CPUs in
different time intervals.
- Add support for BPF trampoline on s390x and riscv64.
- Add capability to export the XDP features supported by the NIC.
- Add __bpf_kfunc tag for marking kernel functions as kfuncs.
- Add cgroup.memory=nobpf kernel parameter option to disable BPF
memory accounting for container environments.
Netfilter:
- Remove the CLUSTERIP target. It has been marked as obsolete for
years, and we still have WARN splats wrt races of the out-of-band
/proc interface installed by this target.
- Add 'destroy' commands to nf_tables. They are identical to the
existing 'delete' commands, but do not return an error if the
referenced object (set, chain, rule...) did not exist.
Driver API:
- Improve cpumask_local_spread() locality to help NICs set the right
IRQ affinity on AMD platforms.
- Separate C22 and C45 MDIO bus transactions more clearly.
- Introduce new DCB table to control DSCP rewrite on egress.
- Support configuration of Physical Layer Collision Avoidance (PLCA)
Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
shared medium Ethernet.
- Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
preemption of low priority frames by high priority frames.
- Add support for controlling MACSec offload using netlink SET.
- Rework devlink instance refcounts to allow registration and
de-registration under the instance lock. Split the code into
multiple files, drop some of the unnecessarily granular locks and
factor out common parts of netlink operation handling.
- Add TX frame aggregation parameters (for USB drivers).
- Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
messages with notifications for debug.
- Allow offloading of UDP NEW connections via act_ct.
- Add support for per action HW stats in TC.
- Support hardware miss to TC action (continue processing in SW from
a specific point in the action chain).
- Warn if old Wireless Extension user space interface is used with
modern cfg80211/mac80211 drivers. Do not support Wireless
Extensions for Wi-Fi 7 devices at all. Everyone should switch to
using nl80211 interface instead.
- Improve the CAN bit timing configuration. Use extack to return
error messages directly to user space, update the SJW handling,
including the definition of a new default value that will benefit
CAN-FD controllers, by increasing their oscillator tolerance.
New hardware / drivers:
- Ethernet:
- nVidia BlueField-3 support (control traffic driver)
- Ethernet support for imx93 SoCs
- Motorcomm yt8531 gigabit Ethernet PHY
- onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
- Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
- Amlogic gxl MDIO mux
- WiFi:
- RealTek RTL8188EU (rtl8xxxu)
- Qualcomm Wi-Fi 7 devices (ath12k)
- CAN:
- Renesas R-Car V4H
Drivers:
- Bluetooth:
- Set Per Platform Antenna Gain (PPAG) for Intel controllers.
- Ethernet NICs:
- Intel (1G, igc):
- support TSN / Qbv / packet scheduling features of i226 model
- Intel (100G, ice):
- use GNSS subsystem instead of TTY
- multi-buffer XDP support
- extend support for GPIO pins to E823 devices
- nVidia/Mellanox:
- update the shared buffer configuration on PFC commands
- implement PTP adjphase function for HW offset control
- TC support for Geneve and GRE with VF tunnel offload
- more efficient crypto key management method
- multi-port eswitch support
- Netronome/Corigine:
- add DCB IEEE support
- support IPsec offloading for NFP3800
- Freescale/NXP (enetc):
- support XDP_REDIRECT for XDP non-linear buffers
- improve reconfig, avoid link flap and waiting for idle
- support MAC Merge layer
- Other NICs:
- sfc/ef100: add basic devlink support for ef100
- ionic: rx_push mode operation (writing descriptors via MMIO)
- bnxt: use the auxiliary bus abstraction for RDMA
- r8169: disable ASPM and reset bus in case of tx timeout
- cpsw: support QSGMII mode for J721e CPSW9G
- cpts: support pulse-per-second output
- ngbe: add an mdio bus driver
- usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
- r8152: handle devices with FW with NCM support
- amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
- virtio-net: support multi buffer XDP
- virtio/vsock: replace virtio_vsock_pkt with sk_buff
- tsnep: XDP support
- Ethernet high-speed switches:
- nVidia/Mellanox (mlxsw):
- add support for latency TLV (in FW control messages)
- Microchip (sparx5):
- separate explicit and implicit traffic forwarding rules, make
the implicit rules always active
- add support for egress DSCP rewrite
- IS0 VCAP support (Ingress Classification)
- IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
etc.)
- ES2 VCAP support (Egress Access Control)
- support for Per-Stream Filtering and Policing (802.1Q,
8.6.5.1)
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- add MAB (port auth) offload support
- enable PTP receive for mv88e6390
- NXP (ocelot):
- support MAC Merge layer
- support for the the vsc7512 internal copper phys
- Microchip:
- lan9303: convert to PHYLINK
- lan966x: support TC flower filter statistics
- lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
- lan937x: support Credit Based Shaper configuration
- ksz9477: support Energy Efficient Ethernet
- other:
- qca8k: convert to regmap read/write API, use bulk operations
- rswitch: Improve TX timestamp accuracy
- Intel WiFi (iwlwifi):
- EHT (Wi-Fi 7) rate reporting
- STEP equalizer support: transfer some STEP (connection to radio
on platforms with integrated wifi) related parameters from the
BIOS to the firmware.
- Qualcomm 802.11ax WiFi (ath11k):
- IPQ5018 support
- Fine Timing Measurement (FTM) responder role support
- channel 177 support
- MediaTek WiFi (mt76):
- per-PHY LED support
- mt7996: EHT (Wi-Fi 7) support
- Wireless Ethernet Dispatch (WED) reset support
- switch to using page pool allocator
- RealTek WiFi (rtw89):
- support new version of Bluetooth co-existance
- Mobile:
- rmnet: support TX aggregation"
* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
page_pool: add a comment explaining the fragment counter usage
net: ethtool: fix __ethtool_dev_mm_supported() implementation
ethtool: pse-pd: Fix double word in comments
xsk: add linux/vmalloc.h to xsk.c
sefltests: netdevsim: wait for devlink instance after netns removal
selftest: fib_tests: Always cleanup before exit
net/mlx5e: Align IPsec ASO result memory to be as required by hardware
net/mlx5e: TC, Set CT miss to the specific ct action instance
net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
net/mlx5: Refactor tc miss handling to a single function
net/mlx5: Kconfig: Make tc offload depend on tc skb extension
net/sched: flower: Support hardware miss to tc action
net/sched: flower: Move filter handle initialization earlier
net/sched: cls_api: Support hardware miss to tc action
net/sched: Rename user cookie and act cookie
sfc: fix builds without CONFIG_RTC_LIB
sfc: clean up some inconsistent indentings
net/mlx4_en: Introduce flexible array to silence overflow warning
net: lan966x: Fix possible deadlock inside PTP
net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
...
|
||
|
Linus Torvalds
|
8bf1a529cd |
arm64 updates for 6.3:
- Support for arm64 SME 2 and 2.1. SME2 introduces a new 512-bit architectural register (ZT0, for the look-up table feature) that Linux needs to save/restore. - Include TPIDR2 in the signal context and add the corresponding kselftests. - Perf updates: Arm SPEv1.2 support, HiSilicon uncore PMU updates, ACPI support to the Marvell DDR and TAD PMU drivers, reset DTM_PMU_CONFIG (ARM CMN) at probe time. - Support for DYNAMIC_FTRACE_WITH_CALL_OPS on arm64. - Permit EFI boot with MMU and caches on. Instead of cleaning the entire loaded kernel image to the PoC and disabling the MMU and caches before branching to the kernel bare metal entry point, leave the MMU and caches enabled and rely on EFI's cacheable 1:1 mapping of all of system RAM to populate the initial page tables. - Expose the AArch32 (compat) ELF_HWCAP features to user in an arm64 kernel (the arm32 kernel only defines the values). - Harden the arm64 shadow call stack pointer handling: stash the shadow stack pointer in the task struct on interrupt, load it directly from this structure. - Signal handling cleanups to remove redundant validation of size information and avoid reading the same data from userspace twice. - Refactor the hwcap macros to make use of the automatically generated ID registers. It should make new hwcaps writing less error prone. - Further arm64 sysreg conversion and some fixes. - arm64 kselftest fixes and improvements. - Pointer authentication cleanups: don't sign leaf functions, unify asm-arch manipulation. - Pseudo-NMI code generation optimisations. - Minor fixes for SME and TPIDR2 handling. - Miscellaneous updates: ARCH_FORCE_MAX_ORDER is now selectable, replace strtobool() to kstrtobool() in the cpufeature.c code, apply dynamic shadow call stack in two passes, intercept pfn changes in set_pte_at() without the required break-before-make sequence, attempt to dump all instructions on unhandled kernel faults. -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE5RElWfyWxS+3PLO2a9axLQDIXvEFAmP0/QsACgkQa9axLQDI XvG+gA/+JDVEH9wRzAIZvbp9hSuohPc48xgAmIMP1eiVB0/5qeRjYAJwS33H0rXS BPC2kj9IBy/eQeM9ICg0nFd0zYznSVacITqe6NrqeJ1F+ftS4rrHdfxd+J7kIoCs V2L8e+BJvmHdhmNV2qMAgJdGlfxfQBA7fv2cy52HKYcouoOh1AUVR/x+yXVXAsCd qJP3+dlUKccgm/oc5unEC1eZ49u8O+EoasqOyfG6K5udMgzhEX3K6imT9J3hw0WT UjstYkx5uGS/prUrRCQAX96VCHoZmzEDKtQuHkHvQXEYXsYPF3ldbR2CziNJnHe7 QfSkjJlt8HAtExA+BkwEe9i0MQO/2VF5qsa2e4fA6l7uqGu3LOtS/jJd23C9n9fR Id8aBMeN6S8+MjqRA9L2uf4t6e4ISEHoG9ZRdc4WOwloxEEiJoIeun+7bHdOSZLj AFdHFCz4NXiiwC0UP0xPDI2YeCLqt5np7HmnrUqwzRpVO8UUagiJD8TIpcBSjBN9 J68eidenHUW7/SlIeaMKE2lmo8AUEAJs9AorDSugF19/ThJcQdx7vT2UAZjeVB3j 1dbbwajnlDOk/w8PQC4thFp5/MDlfst0htS3WRwa+vgkweE2EAdTU4hUZ8qEP7FQ smhYtlT1xUSTYDTqoaG/U2OWR6/UU79wP0jgcOsHXTuyYrtPI/Q= =VmXL -----END PGP SIGNATURE----- Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Catalin Marinas: - Support for arm64 SME 2 and 2.1. SME2 introduces a new 512-bit architectural register (ZT0, for the look-up table feature) that Linux needs to save/restore - Include TPIDR2 in the signal context and add the corresponding kselftests - Perf updates: Arm SPEv1.2 support, HiSilicon uncore PMU updates, ACPI support to the Marvell DDR and TAD PMU drivers, reset DTM_PMU_CONFIG (ARM CMN) at probe time - Support for DYNAMIC_FTRACE_WITH_CALL_OPS on arm64 - Permit EFI boot with MMU and caches on. Instead of cleaning the entire loaded kernel image to the PoC and disabling the MMU and caches before branching to the kernel bare metal entry point, leave the MMU and caches enabled and rely on EFI's cacheable 1:1 mapping of all of system RAM to populate the initial page tables - Expose the AArch32 (compat) ELF_HWCAP features to user in an arm64 kernel (the arm32 kernel only defines the values) - Harden the arm64 shadow call stack pointer handling: stash the shadow stack pointer in the task struct on interrupt, load it directly from this structure - Signal handling cleanups to remove redundant validation of size information and avoid reading the same data from userspace twice - Refactor the hwcap macros to make use of the automatically generated ID registers. It should make new hwcaps writing less error prone - Further arm64 sysreg conversion and some fixes - arm64 kselftest fixes and improvements - Pointer authentication cleanups: don't sign leaf functions, unify asm-arch manipulation - Pseudo-NMI code generation optimisations - Minor fixes for SME and TPIDR2 handling - Miscellaneous updates: ARCH_FORCE_MAX_ORDER is now selectable, replace strtobool() to kstrtobool() in the cpufeature.c code, apply dynamic shadow call stack in two passes, intercept pfn changes in set_pte_at() without the required break-before-make sequence, attempt to dump all instructions on unhandled kernel faults * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (130 commits) arm64: fix .idmap.text assertion for large kernels kselftest/arm64: Don't require FA64 for streaming SVE+ZA tests kselftest/arm64: Copy whole EXTRA context arm64: kprobes: Drop ID map text from kprobes blacklist perf: arm_spe: Print the version of SPE detected perf: arm_spe: Add support for SPEv1.2 inverted event filtering perf: Add perf_event_attr::config3 arm64/sme: Fix __finalise_el2 SMEver check drivers/perf: fsl_imx8_ddr_perf: Remove set-but-not-used variable arm64/signal: Only read new data when parsing the ZT context arm64/signal: Only read new data when parsing the ZA context arm64/signal: Only read new data when parsing the SVE context arm64/signal: Avoid rereading context frame sizes arm64/signal: Make interface for restore_fpsimd_context() consistent arm64/signal: Remove redundant size validation from parse_user_sigframe() arm64/signal: Don't redundantly verify FPSIMD magic arm64/cpufeature: Use helper macros to specify hwcaps arm64/cpufeature: Always use symbolic name for feature value in hwcaps arm64/sysreg: Initial unsigned annotations for ID registers arm64/sysreg: Initial annotation of signed ID registers ... |
||
Dave Hansen
|
74e19ef0ff |
uaccess: Add speculation barrier to copy_from_user()
The results of "access_ok()" can be mis-speculated. The result is that you can end speculatively: if (access_ok(from, size)) // Right here even for bad from/size combinations. On first glance, it would be ideal to just add a speculation barrier to "access_ok()" so that its results can never be mis-speculated. But there are lots of system calls just doing access_ok() via "copy_to_user()" and friends (example: fstat() and friends). Those are generally not problematic because they do not _consume_ data from userspace other than the pointer. They are also very quick and common system calls that should not be needlessly slowed down. "copy_from_user()" on the other hand uses a user-controller pointer and is frequently followed up with code that might affect caches. Take something like this: if (!copy_from_user(&kernelvar, uptr, size)) do_something_with(kernelvar); If userspace passes in an evil 'uptr' that *actually* points to a kernel addresses, and then do_something_with() has cache (or other) side-effects, it could allow userspace to infer kernel data values. Add a barrier to the common copy_from_user() code to prevent mis-speculated values which happen after the copy. Also add a stub for architectures that do not define barrier_nospec(). This makes the macro usable in generic code. Since the barrier is now usable in generic code, the x86 #ifdef in the BPF code can also go away. Reported-by: Jordy Zomer <jordyzomer@google.com> Suggested-by: Linus Torvalds <torvalds@linuxfoundation.org> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Daniel Borkmann <daniel@iogearbox.net> # BPF bits Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Ondrej Mosnacek
|
f1aa2eb5ea |
sysctl: fix proc_dobool() usability
Currently proc_dobool expects a (bool *) in table->data, but sizeof(int)
in table->maxsize, because it uses do_proc_dointvec() directly.
This is unsafe for at least two reasons:
1. A sysctl table definition may use { .data = &variable, .maxsize =
sizeof(variable) }, not realizing that this makes the sysctl unusable
(see the Fixes: tag) and that they need to use the completely
counterintuitive sizeof(int) instead.
2. proc_dobool() will currently try to parse an array of values if given
.maxsize >= 2*sizeof(int), but will try to write values of type bool
by offsets of sizeof(int), so it will not work correctly with neither
an (int *) nor a (bool *). There is no .maxsize validation to prevent
this.
Fix this by:
1. Constraining proc_dobool() to allow only one value and .maxsize ==
sizeof(bool).
2. Wrapping the original struct ctl_table in a temporary one with .data
pointing to a local int variable and .maxsize set to sizeof(int) and
passing this one to proc_dointvec(), converting the value to/from
bool as needed (using proc_dou8vec_minmax() as an example).
3. Extending sysctl_check_table() to enforce proc_dobool() expectations.
4. Fixing the proc_dobool() docstring (it was just copy-pasted from
proc_douintvec, apparently...).
5. Converting all existing proc_dobool() users to set .maxsize to
sizeof(bool) instead of sizeof(int).
Fixes:
|
||
|
Linus Torvalds
|
2504ba8b01 |
Power management updates for 6.3-rc1
- Add EPP support to the AMD P-state cpufreq driver (Perry Yuan, Wyes
Karny, Arnd Bergmann, Bagas Sanjaya).
- Drop the custom cpufreq driver for loongson1 that is not necessary
any more and the corresponding cpufreq platform device (Keguang
Zhang).
- Remove "select SRCU" from system sleep, cpufreq and OPP Kconfig
entries (Paul E. McKenney).
- Enable thermal cooling for Tegra194 (Yi-Wei Wang).
- Register module device table and add missing compatibles for
cpufreq-qcom-hw (Nícolas F. R. A. Prado, Abel Vesa and Luca Weiss).
- Various dt binding updates for qcom-cpufreq-nvmem and opp-v2-kryo-cpu
(Christian Marangi).
- Make kobj_type structure in the cpufreq core constant (Thomas
Weißschuh).
- Make cpufreq_unregister_driver() return void (Uwe Kleine-König).
- Make the TEO cpuidle governor check CPU utilization in order to refine
idle state selection (Kajetan Puchalski).
- Make Kconfig select the haltpoll cpuidle governor when the haltpoll
cpuidle driver is selected and replace a default_idle() call in that
driver with arch_cpu_idle() to allow MWAIT to be used (Li RongQing).
- Add Emerald Rapids Xeon support to the intel_idle driver (Artem
Bityutskiy).
- Add ARCH_SUSPEND_POSSIBLE dependencies for ARMv4 cpuidle drivers to
avoid randconfig build failures (Arnd Bergmann).
- Make kobj_type structures used in the cpuidle sysfs interface
constant (Thomas Weißschuh).
- Make the cpuidle driver registration code update microsecond values
of idle state parameters in accordance with their nanosecond values
if they are provided (Rafael Wysocki).
- Make the PSCI cpuidle driver prevent topology CPUs from being
suspended on PREEMPT_RT (Krzysztof Kozlowski).
- Document that pm_runtime_force_suspend() cannot be used with
DPM_FLAG_SMART_SUSPEND (Richard Fitzgerald).
- Add EXPORT macros for exporting PM functions from drivers (Richard
Fitzgerald).
- Remove /** from non-kernel-doc comments in hibernation code (Randy
Dunlap).
- Fix possible name leak in powercap_register_zone() (Yang Yingliang).
- Add Meteor Lake and Emerald Rapids support to the intel_rapl power
capping driver (Zhang Rui).
- Modify the idle_inject power capping facility to support 100% idle
injection (Srinivas Pandruvada).
- Fix large time windows handling in the intel_rapl power capping
driver (Zhang Rui).
- Fix memory leaks with using debugfs_lookup() in the generic PM
domains and Energy Model code (Greg Kroah-Hartman).
- Add missing 'cache-unified' property in the example for kryo OPP
bindings (Rob Herring).
- Fix error checking in opp_migrate_dentry() (Qi Zheng).
- Let qcom,opp-fuse-level be a 2-long array for qcom SoCs (Konrad
Dybcio).
- Modify some power management utilities to use the canonical ftrace
path (Ross Zwisler).
- Correct spelling problems for Documentation/power/ as reported by
codespell (Randy Dunlap).
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Merge tag 'pm-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These add EPP support to the AMD P-state cpufreq driver, add support
for new platforms to the Intel RAPL power capping driver, intel_idle
and the Qualcomm cpufreq driver, enable thermal cooling for Tegra194,
drop the custom cpufreq driver for loongson1 that is not necessary any
more (and the corresponding cpufreq platform device), fix assorted
issues and clean up code.
Specifics:
- Add EPP support to the AMD P-state cpufreq driver (Perry Yuan, Wyes
Karny, Arnd Bergmann, Bagas Sanjaya)
- Drop the custom cpufreq driver for loongson1 that is not necessary
any more and the corresponding cpufreq platform device (Keguang
Zhang)
- Remove "select SRCU" from system sleep, cpufreq and OPP Kconfig
entries (Paul E. McKenney)
- Enable thermal cooling for Tegra194 (Yi-Wei Wang)
- Register module device table and add missing compatibles for
cpufreq-qcom-hw (Nícolas F. R. A. Prado, Abel Vesa and Luca Weiss)
- Various dt binding updates for qcom-cpufreq-nvmem and
opp-v2-kryo-cpu (Christian Marangi)
- Make kobj_type structure in the cpufreq core constant (Thomas
Weißschuh)
- Make cpufreq_unregister_driver() return void (Uwe Kleine-König)
- Make the TEO cpuidle governor check CPU utilization in order to
refine idle state selection (Kajetan Puchalski)
- Make Kconfig select the haltpoll cpuidle governor when the haltpoll
cpuidle driver is selected and replace a default_idle() call in
that driver with arch_cpu_idle() to allow MWAIT to be used (Li
RongQing)
- Add Emerald Rapids Xeon support to the intel_idle driver (Artem
Bityutskiy)
- Add ARCH_SUSPEND_POSSIBLE dependencies for ARMv4 cpuidle drivers to
avoid randconfig build failures (Arnd Bergmann)
- Make kobj_type structures used in the cpuidle sysfs interface
constant (Thomas Weißschuh)
- Make the cpuidle driver registration code update microsecond values
of idle state parameters in accordance with their nanosecond values
if they are provided (Rafael Wysocki)
- Make the PSCI cpuidle driver prevent topology CPUs from being
suspended on PREEMPT_RT (Krzysztof Kozlowski)
- Document that pm_runtime_force_suspend() cannot be used with
DPM_FLAG_SMART_SUSPEND (Richard Fitzgerald)
- Add EXPORT macros for exporting PM functions from drivers (Richard
Fitzgerald)
- Remove /** from non-kernel-doc comments in hibernation code (Randy
Dunlap)
- Fix possible name leak in powercap_register_zone() (Yang Yingliang)
- Add Meteor Lake and Emerald Rapids support to the intel_rapl power
capping driver (Zhang Rui)
- Modify the idle_inject power capping facility to support 100% idle
injection (Srinivas Pandruvada)
- Fix large time windows handling in the intel_rapl power capping
driver (Zhang Rui)
- Fix memory leaks with using debugfs_lookup() in the generic PM
domains and Energy Model code (Greg Kroah-Hartman)
- Add missing 'cache-unified' property in the example for kryo OPP
bindings (Rob Herring)
- Fix error checking in opp_migrate_dentry() (Qi Zheng)
- Let qcom,opp-fuse-level be a 2-long array for qcom SoCs (Konrad
Dybcio)
- Modify some power management utilities to use the canonical ftrace
path (Ross Zwisler)
- Correct spelling problems for Documentation/power/ as reported by
codespell (Randy Dunlap)"
* tag 'pm-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits)
Documentation: amd-pstate: disambiguate user space sections
cpufreq: amd-pstate: Fix invalid write to MSR_AMD_CPPC_REQ
dt-bindings: opp: opp-v2-kryo-cpu: enlarge opp-supported-hw maximum
dt-bindings: cpufreq: qcom-cpufreq-nvmem: make cpr bindings optional
dt-bindings: cpufreq: qcom-cpufreq-nvmem: specify supported opp tables
PM: Add EXPORT macros for exporting PM functions
cpuidle: psci: Do not suspend topology CPUs on PREEMPT_RT
MIPS: loongson32: Drop obsolete cpufreq platform device
powercap: intel_rapl: Fix handling for large time window
cpuidle: driver: Update microsecond values of state parameters as needed
cpuidle: sysfs: make kobj_type structures constant
cpuidle: add ARCH_SUSPEND_POSSIBLE dependencies
PM: EM: fix memory leak with using debugfs_lookup()
PM: domains: fix memory leak with using debugfs_lookup()
cpufreq: Make kobj_type structure constant
cpufreq: davinci: Fix clk use after free
cpufreq: amd-pstate: avoid uninitialized variable use
cpufreq: Make cpufreq_unregister_driver() return void
OPP: fix error checking in opp_migrate_dentry()
dt-bindings: cpufreq: cpufreq-qcom-hw: Add SM8550 compatible
...
|
||
|
Linus Torvalds
|
902d9fcd8d |
seccomp update for v6.3-rc1
- Fix kernel-doc function name ordering to avoid warning (Randy Dunlap) -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmPv0ngWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJhVmEACxy2frT9DJUKLyTtYLlttXkaEV KttcsIPzkOoaf1cQHVodPfdERgKIw8zrm/L8++e77wznTlm59aQq8f1wYMUufPBZ yQCZq/FpmEBbcVf4HWmoFUdWa2nppH7fGWs58bmAfGniNCzltdpXsqNlxxBqzA6R x62WlphysPDJlbFJ7d5J4x1MZCw+e5I5lw1TI81ybtCgTx4gFy2QL6lIncbCR7Oq lPmF8yDuFxWRcHr2GtLrUjdtI4qSk/TSJcn2DNJ7anIsikxDKeRI8Iwq28UgvC4E fQK0zhVgWaBT1lgDAyu+Vrz3I9nt+XW5Te9xxCEv+0PHOkakF8kz1ouTVqBiYAVs vk/1M1jSpSGwpXmW8NbuirDVBf9Iqm2jXO6fxRkS8vzYuOVtJox9tuVMMru4oSlK K2HlZgBmr+sU/RXtrlTRxlLPvW5Lvy7jQG3hmsnPN3Nkf+ADuYY00IFMkA5xwVBg jhSPYMwhtii46fg2lgrqqTScXIxq1Zzu0gguDKe1B2RCq/0oAvoxN/zWmBWwdq65 hqLEPe+aSEeUsQcIuZ5k+rixT6cK8qTCYCkv1LGxMrnZyeJ9WKzprOcilRYaW5C4 vw8LqyNB12/YTEFe58E2MspccUA+zPc9ei2HV3Ammtd2pRx+CCpyaN5EdQqbWJbL RGjrCLpEN+Y8O+AA9Q== =NUg2 -----END PGP SIGNATURE----- Merge tag 'seccomp-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp update from Kees Cook: - Fix kernel-doc function name ordering to avoid warning (Randy Dunlap) * tag 'seccomp-v6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: seccomp: fix kernel-doc function name warning |
||
|
Linus Torvalds
|
8cc01d43f8 |
RCU pull request for v6.3
This pull request contains the following branches:
doc.2023.01.05a: Documentation updates.
fixes.2023.01.23a: Miscellaneous fixes, perhaps most notably:
o Throttling callback invocation based on the number of callbacks
that are now ready to invoke instead of on the total number
of callbacks.
o Several patches that suppress false-positive boot-time
diagnostics, for example, due to lockdep not yet being
initialized.
o Make expedited RCU CPU stall warnings dump stacks of any tasks
that are blocking the stalled grace period. (Normal RCU CPU
stall warnings have doen this for mnay years.)
o Lazy-callback fixes to avoid delays during boot, suspend, and
resume. (Note that lazy callbacks must be explicitly enabled,
so this should not (yet) affect production use cases.)
kvfree.2023.01.03a: Cause kfree_rcu() and friends to take advantage of
polled grace periods, thus reducing memory footprint by almost
two orders of magnitude, admittedly on a microbenchmark.
This series also begins the transition from kfree_rcu(p) to
kfree_rcu_mightsleep(p). This transition was motivated by bugs
where kfree_rcu(p), which can block, was typed instead of the
intended kfree_rcu(p, rh).
srcu.2023.01.03a: SRCU updates, perhaps most notably fixing a bug that
causes SRCU to fail when booted on a system with a non-zero boot
CPU. This surprising situation actually happens for kdump kernels
on the powerpc architecture. It also adds an srcu_down_read()
and srcu_up_read(), which act like srcu_read_lock() and
srcu_read_unlock(), but allow an SRCU read-side critical section
to be handed off from one task to another.
srcu-always.2023.02.02a: Cleans up the now-useless SRCU Kconfig option.
There are a few more commits that are not yet acked or pulled
into maintainer trees, and these will be in a pull request for
a later merge window.
tasks.2023.01.03a: RCU-tasks updates, perhaps most notably these fixes:
o A strange interaction between PID-namespace unshare and the
RCU-tasks grace period that results in a low-probability but
very real hang.
o A race between an RCU tasks rude grace period on a single-CPU
system and CPU-hotplug addition of the second CPU that can result
in a too-short grace period.
o A race between shrinking RCU tasks down to a single callback list
and queuing a new callback to some other CPU, but where that
queuing is delayed for more than an RCU grace period. This can
result in that callback being stranded on the non-boot CPU.
torture.2023.01.05a: Torture-test updates and fixes.
torturescript.2023.01.03a: Torture-test scripting updates and fixes.
stall.2023.01.09a: Provide additional RCU CPU stall-warning information
in kernels built with CONFIG_RCU_CPU_STALL_CPUTIME=y, and
restore the full five-minute timeout limit for expedited RCU
CPU stall warnings.
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Merge tag 'rcu.2023.02.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull RCU updates from Paul McKenney:
- Documentation updates
- Miscellaneous fixes, perhaps most notably:
- Throttling callback invocation based on the number of callbacks
that are now ready to invoke instead of on the total number of
callbacks
- Several patches that suppress false-positive boot-time
diagnostics, for example, due to lockdep not yet being
initialized
- Make expedited RCU CPU stall warnings dump stacks of any tasks
that are blocking the stalled grace period. (Normal RCU CPU
stall warnings have done this for many years)
- Lazy-callback fixes to avoid delays during boot, suspend, and
resume. (Note that lazy callbacks must be explicitly enabled, so
this should not (yet) affect production use cases)
- Make kfree_rcu() and friends take advantage of polled grace periods,
thus reducing memory footprint by almost two orders of magnitude,
admittedly on a microbenchmark
This also begins the transition from kfree_rcu(p) to
kfree_rcu_mightsleep(p). This transition was motivated by bugs where
kfree_rcu(p), which can block, was typed instead of the intended
kfree_rcu(p, rh)
- SRCU updates, perhaps most notably fixing a bug that causes SRCU to
fail when booted on a system with a non-zero boot CPU. This
surprising situation actually happens for kdump kernels on the
powerpc architecture
This also adds an srcu_down_read() and srcu_up_read(), which act like
srcu_read_lock() and srcu_read_unlock(), but allow an SRCU read-side
critical section to be handed off from one task to another
- Clean up the now-useless SRCU Kconfig option
There are a few more commits that are not yet acked or pulled into
maintainer trees, and these will be in a pull request for a later
merge window
- RCU-tasks updates, perhaps most notably these fixes:
- A strange interaction between PID-namespace unshare and the
RCU-tasks grace period that results in a low-probability but
very real hang
- A race between an RCU tasks rude grace period on a single-CPU
system and CPU-hotplug addition of the second CPU that can
result in a too-short grace period
- A race between shrinking RCU tasks down to a single callback
list and queuing a new callback to some other CPU, but where
that queuing is delayed for more than an RCU grace period. This
can result in that callback being stranded on the non-boot CPU
- Torture-test updates and fixes
- Torture-test scripting updates and fixes
- Provide additional RCU CPU stall-warning information in kernels built
with CONFIG_RCU_CPU_STALL_CPUTIME=y, and restore the full five-minute
timeout limit for expedited RCU CPU stall warnings
* tag 'rcu.2023.02.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (80 commits)
rcu/kvfree: Add kvfree_rcu_mightsleep() and kfree_rcu_mightsleep()
kernel/notifier: Remove CONFIG_SRCU
init: Remove "select SRCU"
fs/quota: Remove "select SRCU"
fs/notify: Remove "select SRCU"
fs/btrfs: Remove "select SRCU"
fs: Remove CONFIG_SRCU
drivers/pci/controller: Remove "select SRCU"
drivers/net: Remove "select SRCU"
drivers/md: Remove "select SRCU"
drivers/hwtracing/stm: Remove "select SRCU"
drivers/dax: Remove "select SRCU"
drivers/base: Remove CONFIG_SRCU
rcu: Disable laziness if lazy-tracking says so
rcu: Track laziness during boot and suspend
rcu: Remove redundant call to rcu_boost_kthread_setaffinity()
rcu: Allow up to five minutes expedited RCU CPU stall-warning timeouts
rcu: Align the output of RCU CPU stall warning messages
rcu: Add RCU stall diagnosis information
sched: Add helper nr_context_switches_cpu()
...
|
||
|
Linus Torvalds
|
8ca8d89b43 |
cgroup changes for v6.3-rc1
All the commits are trivial. Doc updates and a trivial code cleanup. -----BEGIN PGP SIGNATURE----- iIQEABYIACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCY/Kvjw4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGfcZAQDoyqEm807R2iaELEfee0xq/NPwJIaDRnXDP6ZL rIEtqAD8CzpvvtKauekMIsCHVq7SuxDae8Hi0a/RImN8e1sy6wY= =pUSo -----END PGP SIGNATURE----- Merge tag 'cgroup-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup Pull cgroup updates from Tejun Heo: "All the changes are trivial: documentation updates and a trivial code cleanup" * tag 'cgroup-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup/cpuset: fix a few kernel-doc warnings & coding style docs: cgroup-v1: use numbered lists for user interface setup docs: cgroup-v1: add internal cross-references docs: cgroup-v1: make swap extension subsections subsections docs: cgroup-v1: use bullet lists for list of stat file tables docs: cgroup-v1: move hierarchy of accounting caption docs: cgroup-v1: fix footnotes docs: cgroup-v1: use code block for locking order schema docs: cgroup-v1: wrap remaining admonitions in admonition blocks docs: cgroup-v1: replace custom note constructs with appropriate admonition blocks cgroup/cpuset: no need to explicitly init a global static variable |
||
|
Linus Torvalds
|
3e82b41e1e |
workqueue changes for v6.3-rc1
* When per-cpu workqueue workers expire after sitting idle for too long, they used to wake up to the CPU that they're bound to to exit. This unfortunately could cause unwanted disturbances on CPUs isolated for e.g. RT applications. The worker exit path is restructured so that an existing worker is unbound from its CPU before being woken up for the last time, allowing it to migrate away from an isolated CPU for exiting. * A couple debug improvements. Watchdog dump is made more compact and workqueue now warns if used-after-free during the RCU grace period after destroy_workqueue(). -----BEGIN PGP SIGNATURE----- iIQEABYIACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCY/Ktfg4cdGpAa2VybmVs Lm9yZwAKCRCxYfJx3gVYGUAyAQDAs8HXnn7HDHvmJKWga7OaG3x+LhgJ6k17B4TQ kUhX3QEAoVFB9YVX777rIBI+XgVVbjmgFP0SaRBCm8El8gUkUws= =WPMP -----END PGP SIGNATURE----- Merge tag 'wq-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq Pull workqueue updates from Tejun Heo: - When per-cpu workqueue workers expire after sitting idle for too long, they used to wake up to the CPU that they're bound to in order to exit. This unfortunately could cause unwanted disturbances on CPUs isolated for e.g. RT applications. The worker exit path is restructured so that an existing worker is unbound from its CPU before being woken up for the last time, allowing it to migrate away from an isolated CPU for exiting. - A couple debug improvements. Watchdog dump is made more compact and workqueue now warns if used-after-free during the RCU grace period after destroy_workqueue(). * tag 'wq-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: Fold rebind_worker() within rebind_workers() workqueue: Unbind kworkers before sending them to exit() workqueue: Don't hold any lock while rcuwait'ing for !POOL_MANAGER_ACTIVE workqueue: Convert the idle_timer to a timer + work_struct workqueue: Factorize unbind/rebind_workers() logic workqueue: Protects wq_unbound_cpumask with wq_pool_attach_mutex workqueue: Make show_pwq() use run-length encoding workqueue: Add a new flag to spot the potential UAF error |
||
|
Linus Torvalds
|
9e58df973d |
Updates for the interrupt subsystem:
Core:
- Move the interrupt affinity spreading mechanism into lib/group_cpus
so it can be used for similar spreading requirements, e.g. in the
block multi-queue code.
This also contains a first usecase in the block multi-queue code which
Jens asked to take along with the librarization.
- Improve irqdomain locking to close a number race conditions which
can be observed with massive parallel device driver probing.
- Enforce and document the semantics of disable_irq() which cannot be
invoked safely from non-sleepable context.
- Move the IPI multiplexing code from the Apple AIC driver into the
core. so it can be reused by RISCV.
Drivers:
- Plug OF node refcounting leaks in various drivers.
- Correctly mark level triggered interrupts in the Broadcom L2 drivers.
- The usual small fixes and improvements.
- No new drivers for the record!
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Merge tag 'irq-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"Updates for the interrupt subsystem:
Core:
- Move the interrupt affinity spreading mechanism into lib/group_cpus
so it can be used for similar spreading requirements, e.g. in the
block multi-queue code
This also contains a first usecase in the block multi-queue code
which Jens asked to take along with the librarization
- Improve irqdomain locking to close a number race conditions which
can be observed with massive parallel device driver probing
- Enforce and document the semantics of disable_irq() which cannot be
invoked safely from non-sleepable context
- Move the IPI multiplexing code from the Apple AIC driver into the
core, so it can be reused by RISCV
Drivers:
- Plug OF node refcounting leaks in various drivers
- Correctly mark level triggered interrupts in the Broadcom L2
drivers
- The usual small fixes and improvements
- No new drivers for the record!"
* tag 'irq-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
irqchip/irq-bcm7120-l2: Set IRQ_LEVEL for level triggered interrupts
irqchip/irq-brcmstb-l2: Set IRQ_LEVEL for level triggered interrupts
irqdomain: Switch to per-domain locking
irqchip/mvebu-odmi: Use irq_domain_create_hierarchy()
irqchip/loongson-pch-msi: Use irq_domain_create_hierarchy()
irqchip/gic-v3-mbi: Use irq_domain_create_hierarchy()
irqchip/gic-v3-its: Use irq_domain_create_hierarchy()
irqchip/gic-v2m: Use irq_domain_create_hierarchy()
irqchip/alpine-msi: Use irq_domain_add_hierarchy()
x86/uv: Use irq_domain_create_hierarchy()
x86/ioapic: Use irq_domain_create_hierarchy()
irqdomain: Clean up irq_domain_push/pop_irq()
irqdomain: Drop leftover brackets
irqdomain: Drop dead domain-name assignment
irqdomain: Drop revmap mutex
irqdomain: Fix domain registration race
irqdomain: Fix mapping-creation race
irqdomain: Refactor __irq_domain_alloc_irqs()
irqdomain: Look for existing mapping only once
irqdomain: Drop bogus fwspec-mapping error handling
...
|
||
|
Linus Torvalds
|
560b803067 |
Updates for timekeeping, timers and clockevent/source drivers:
Core:
- Yet another round of improvements to make the clocksource watchdog
more robust:
- Relax the clocksource-watchdog skew criteria to match the NTP
criteria.
- Temporarily skip the watchdog when high memory latencies are
detected which can lead to false-positives.
- Provide an option to enable TSC skew detection even on systems
where TSC is marked as reliable.
Sigh!
- Initialize the restart block in the nanosleep syscalls to be directed
to the no restart function instead of doing a partial setup on entry.
This prevents an erroneous restart_syscall() invocation from
corrupting user space data. While such a situation is clearly a user
space bug, preventing this is a correctness issue and caters to the
least suprise principle.
- Ignore the hrtimer slack for realtime tasks in schedule_hrtimeout()
to align it with the nanosleep semantics.
Drivers:
- The obligatory new driver bindings for Mediatek, Rockchip and RISC-V
variants.
- Add support for the C3STOP misfeature to the RISC-V timer to handle
the case where the timer stops in deeper idle state.
- Set up a static key in the RISC-V timer correctly before first use.
- The usual small improvements and fixes all over the place
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Merge tag 'timers-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"Updates for timekeeping, timers and clockevent/source drivers:
Core:
- Yet another round of improvements to make the clocksource watchdog
more robust:
- Relax the clocksource-watchdog skew criteria to match the NTP
criteria.
- Temporarily skip the watchdog when high memory latencies are
detected which can lead to false-positives.
- Provide an option to enable TSC skew detection even on systems
where TSC is marked as reliable.
Sigh!
- Initialize the restart block in the nanosleep syscalls to be
directed to the no restart function instead of doing a partial
setup on entry.
This prevents an erroneous restart_syscall() invocation from
corrupting user space data. While such a situation is clearly a
user space bug, preventing this is a correctness issue and caters
to the least suprise principle.
- Ignore the hrtimer slack for realtime tasks in schedule_hrtimeout()
to align it with the nanosleep semantics.
Drivers:
- The obligatory new driver bindings for Mediatek, Rockchip and
RISC-V variants.
- Add support for the C3STOP misfeature to the RISC-V timer to handle
the case where the timer stops in deeper idle state.
- Set up a static key in the RISC-V timer correctly before first use.
- The usual small improvements and fixes all over the place"
* tag 'timers-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
clocksource/drivers/timer-sun4i: Add CLOCK_EVT_FEAT_DYNIRQ
clocksource/drivers/em_sti: Mark driver as non-removable
clocksource/drivers/sh_tmu: Mark driver as non-removable
clocksource/drivers/riscv: Patch riscv_clock_next_event() jump before first use
clocksource/drivers/timer-microchip-pit64b: Add delay timer
clocksource/drivers/timer-microchip-pit64b: Select driver only on ARM
dt-bindings: timer: sifive,clint: add comaptibles for T-Head's C9xx
dt-bindings: timer: mediatek,mtk-timer: add MT8365
clocksource/drivers/riscv: Get rid of clocksource_arch_init() callback
clocksource/drivers/sh_cmt: Mark driver as non-removable
clocksource/drivers/timer-microchip-pit64b: Drop obsolete dependency on COMPILE_TEST
clocksource/drivers/riscv: Increase the clock source rating
clocksource/drivers/timer-riscv: Set CLOCK_EVT_FEAT_C3STOP based on DT
dt-bindings: timer: Add bindings for the RISC-V timer device
RISC-V: time: initialize hrtimer based broadcast clock event device
dt-bindings: timer: rk-timer: Add rktimer for rv1126
time/debug: Fix memory leak with using debugfs_lookup()
clocksource: Enable TSC watchdog checking of HPET and PMTMR only when requested
posix-timers: Use atomic64_try_cmpxchg() in __update_gt_cputime()
clocksource: Verify HPET and PMTMR when TSC unverified
...
|
||
Juhyung Park
|
9e0c7efa5e |
block: remove more NULL checks after bdev_get_queue()
bdev_get_queue() never returns NULL. Several commits [1][2] have been made before to remove such superfluous checks, but some still remained. For places where bdev_get_queue() is called solely for NULL checks, it is removed entirely. [1] commit |
||
Jason Gunthorpe
|
939204e4df |
Linux 6.2
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAmPyoZYeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGcE0H/1imH5XOfowBdPQU p06pCJGKQyEsGnn+kXd7UXes9N/uZFQgOzY9sFspS1ZpXfm60zDcWCeJT2l3qatK dtmAGxTEBeZJ8JuevtBiedWy9pJPpvMsfeZd85XzGDRxNUnGT5HgU0/98NpIjysb 9HTPrpJO9HlmoAKkFDu+Z/kLJp+obns1yQOCH5glOREsPY+4SX76bjPjrbSic0oj oDSSBpM2gfdwHWnOKkXhgNuu8zr+hS3LaU1HMj6Kgy3Huz2NjGlgXrRpzutTHEmT cmt3Dl5hdIeUtMCt8LbQcngjTg/rX11rFdWaOp/MOuD6U7cqTCWeEDyVsPicFehH wdsIfgw= =+SoL -----END PGP SIGNATURE----- Merge tag 'v6.2' into iommufd.git for-next Resolve conflicts from the signature change in iommu_map: - drivers/infiniband/hw/usnic/usnic_uiom.c Switch iommu_map_atomic() to iommu_map(.., GFP_ATOMIC) - drivers/vfio/vfio_iommu_type1.c Following indenting change for GFP_KERNEL Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
||
Petr Mladek
|
392143c9f2 | Merge branch 'rework/buffers-cleanup' into for-linus | ||
|
Linus Torvalds
|
1f2d9ffc7a |
Scheduler updates in this cycle are:
- Improve the scalability of the CFS bandwidth unthrottling logic
with large number of CPUs.
- Fix & rework various cpuidle routines, simplify interaction with
the generic scheduler code. Add __cpuidle methods as noinstr to
objtool's noinstr detection and fix boatloads of cpuidle bugs & quirks.
- Add new ABI: introduce MEMBARRIER_CMD_GET_REGISTRATIONS,
to query previously issued registrations.
- Limit scheduler slice duration to the sysctl_sched_latency period,
to improve scheduling granularity with a large number of SCHED_IDLE
tasks.
- Debuggability enhancement on sys_exit(): warn about disabled IRQs,
but also enable them to prevent a cascade of followup problems and
repeat warnings.
- Fix the rescheduling logic in prio_changed_dl().
- Micro-optimize cpufreq and sched-util methods.
- Micro-optimize ttwu_runnable()
- Micro-optimize the idle-scanning in update_numa_stats(),
select_idle_capacity() and steal_cookie_task().
- Update the RSEQ code & self-tests
- Constify various scheduler methods
- Remove unused methods
- Refine __init tags
- Documentation updates
- ... Misc other cleanups, fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
- Improve the scalability of the CFS bandwidth unthrottling logic with
large number of CPUs.
- Fix & rework various cpuidle routines, simplify interaction with the
generic scheduler code. Add __cpuidle methods as noinstr to objtool's
noinstr detection and fix boatloads of cpuidle bugs & quirks.
- Add new ABI: introduce MEMBARRIER_CMD_GET_REGISTRATIONS, to query
previously issued registrations.
- Limit scheduler slice duration to the sysctl_sched_latency period, to
improve scheduling granularity with a large number of SCHED_IDLE
tasks.
- Debuggability enhancement on sys_exit(): warn about disabled IRQs,
but also enable them to prevent a cascade of followup problems and
repeat warnings.
- Fix the rescheduling logic in prio_changed_dl().
- Micro-optimize cpufreq and sched-util methods.
- Micro-optimize ttwu_runnable()
- Micro-optimize the idle-scanning in update_numa_stats(),
select_idle_capacity() and steal_cookie_task().
- Update the RSEQ code & self-tests
- Constify various scheduler methods
- Remove unused methods
- Refine __init tags
- Documentation updates
- Misc other cleanups, fixes
* tag 'sched-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (110 commits)
sched/rt: pick_next_rt_entity(): check list_entry
sched/deadline: Add more reschedule cases to prio_changed_dl()
sched/fair: sanitize vruntime of entity being placed
sched/fair: Remove capacity inversion detection
sched/fair: unlink misfit task from cpu overutilized
objtool: mem*() are not uaccess safe
cpuidle: Fix poll_idle() noinstr annotation
sched/clock: Make local_clock() noinstr
sched/clock/x86: Mark sched_clock() noinstr
x86/pvclock: Improve atomic update of last_value in pvclock_clocksource_read()
x86/atomics: Always inline arch_atomic64*()
cpuidle: tracing, preempt: Squash _rcuidle tracing
cpuidle: tracing: Warn about !rcu_is_watching()
cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG
cpuidle: drivers: firmware: psci: Dont instrument suspend code
KVM: selftests: Fix build of rseq test
exit: Detect and fix irq disabled state in oops
cpuidle, arm64: Fix the ARM64 cpuidle logic
cpuidle: mvebu: Fix duplicate flags assignment
sched/fair: Limit sched slice duration
...
|
||
|
Linus Torvalds
|
a2f0e7eee1 |
The latest perf updates in this cycle are:
- Optimize perf_sample_data layout
- Prepare sample data handling for BPF integration
- Update the x86 PMU driver for Intel Meteor Lake
- Restructure the x86 uncore code to fix a SPR (Sapphire Rapids)
discovery breakage
- Fix the x86 Zhaoxin PMU driver
- Cleanups
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
- Optimize perf_sample_data layout
- Prepare sample data handling for BPF integration
- Update the x86 PMU driver for Intel Meteor Lake
- Restructure the x86 uncore code to fix a SPR (Sapphire Rapids)
discovery breakage
- Fix the x86 Zhaoxin PMU driver
- Cleanups
* tag 'perf-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
perf/x86/intel/uncore: Add Meteor Lake support
x86/perf/zhaoxin: Add stepping check for ZXC
perf/x86/intel/ds: Fix the conversion from TSC to perf time
perf/x86/uncore: Don't WARN_ON_ONCE() for a broken discovery table
perf/x86/uncore: Add a quirk for UPI on SPR
perf/x86/uncore: Ignore broken units in discovery table
perf/x86/uncore: Fix potential NULL pointer in uncore_get_alias_name
perf/x86/uncore: Factor out uncore_device_to_die()
perf/core: Call perf_prepare_sample() before running BPF
perf/core: Introduce perf_prepare_header()
perf/core: Do not pass header for sample ID init
perf/core: Set data->sample_flags in perf_prepare_sample()
perf/core: Add perf_sample_save_brstack() helper
perf/core: Add perf_sample_save_raw_data() helper
perf/core: Add perf_sample_save_callchain() helper
perf/core: Save the dynamic parts of sample data size
x86/kprobes: Use switch-case for 0xFF opcodes in prepare_emulation
perf/core: Change the layout of perf_sample_data
perf/x86/msr: Add Meteor Lake support
perf/x86/cstate: Add Meteor Lake support
...
|
||
|
Linus Torvalds
|
6e649d0856 |
Updates for this cycle were:
- rwsem micro-optimizations
- spinlock micro-optimizations
- cleanups, simplifications
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
- rwsem micro-optimizations
- spinlock micro-optimizations
- cleanups, simplifications
* tag 'locking-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
vduse: Remove include of rwlock.h
locking/lockdep: Remove lockdep_init_map_crosslock.
x86/ACPI/boot: Use try_cmpxchg() in __acpi_{acquire,release}_global_lock()
x86/PAT: Use try_cmpxchg() in set_page_memtype()
locking/rwsem: Disable preemption in all down_write*() and up_write() code paths
locking/rwsem: Disable preemption in all down_read*() and up_read() code paths
locking/rwsem: Prevent non-first waiter from spinning in down_write() slowpath
locking/qspinlock: Micro-optimize pending state waiting for unlock
|
||
Jakub Kicinski
|
ee8d72a157 |
bpf-next-for-netdev
-----BEGIN PGP SIGNATURE----- iHUEABYIAB0WIQTFp0I1jqZrAX+hPRXbK58LschIgwUCY+/uBgAKCRDbK58LschI g0ngAPwJHd1RicBuy2C4fLv0nGKZtmYZBAnTGlI2RisPxU6BRwEAwUDLHuc5K6nR j261okOxOy/MRxdN1NhmR6Qe7nMyQAk= =tYU+ -----END PGP SIGNATURE----- Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Daniel Borkmann says: ==================== pull-request: bpf-next 2023-02-17 We've added 64 non-merge commits during the last 7 day(s) which contain a total of 158 files changed, 4190 insertions(+), 988 deletions(-). The main changes are: 1) Add a rbtree data structure following the "next-gen data structure" precedent set by recently-added linked-list, that is, by using kfunc + kptr instead of adding a new BPF map type, from Dave Marchevsky. 2) Add a new benchmark for hashmap lookups to BPF selftests, from Anton Protopopov. 3) Fix bpf_fib_lookup to only return valid neighbors and add an option to skip the neigh table lookup, from Martin KaFai Lau. 4) Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accouting for container environments, from Yafang Shao. 5) Batch of ice multi-buffer and driver performance fixes, from Alexander Lobakin. 6) Fix a bug in determining whether global subprog's argument is PTR_TO_CTX, which is based on type names which breaks kprobe progs, from Andrii Nakryiko. 7) Prep work for future -mcpu=v4 LLVM option which includes usage of BPF_ST insn. Thus improve BPF_ST-related value tracking in verifier, from Eduard Zingerman. 8) More prep work for later building selftests with Memory Sanitizer in order to detect usages of undefined memory, from Ilya Leoshkevich. 9) Fix xsk sockets to check IFF_UP earlier to avoid a NULL pointer dereference via sendmsg(), from Maciej Fijalkowski. 10) Implement BPF trampoline for RV64 JIT compiler, from Pu Lehui. 11) Fix BPF memory allocator in combination with BPF hashtab where it could corrupt special fields e.g. used in bpf_spin_lock, from Hou Tao. 12) Fix LoongArch BPF JIT to always use 4 instructions for function address so that instruction sequences don't change between passes, from Hengqi Chen. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (64 commits) selftests/bpf: Add bpf_fib_lookup test bpf: Add BPF_FIB_LOOKUP_SKIP_NEIGH for bpf_fib_lookup riscv, bpf: Add bpf trampoline support for RV64 riscv, bpf: Add bpf_arch_text_poke support for RV64 riscv, bpf: Factor out emit_call for kernel and bpf context riscv: Extend patch_text for multiple instructions Revert "bpf, test_run: fix &xdp_frame misplacement for LIVE_FRAMES" selftests/bpf: Add global subprog context passing tests selftests/bpf: Convert test_global_funcs test to test_loader framework bpf: Fix global subprog context argument resolution logic LoongArch, bpf: Use 4 instructions for function address in JIT bpf: bpf_fib_lookup should not return neigh in NUD_FAILED state bpf: Disable bh in bpf_test_run for xdp and tc prog xsk: check IFF_UP earlier in Tx path Fix typos in selftest/bpf files selftests/bpf: Use bpf_{btf,link,map,prog}_get_info_by_fd() samples/bpf: Use bpf_{btf,link,map,prog}_get_info_by_fd() bpftool: Use bpf_{btf,link,map,prog}_get_info_by_fd() libbpf: Use bpf_{btf,link,map,prog}_get_info_by_fd() libbpf: Introduce bpf_{btf,link,map,prog}_get_info_by_fd() ... ==================== Link: https://lore.kernel.org/r/20230217221737.31122-1-daniel@iogearbox.net Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
||
Quanfa Fu
|
c96abaec78 |
tracing/eprobe: no need to check for negative ret value for snprintf
No need to check for negative return value from snprintf() as the code does not return negative values. Link: https://lore.kernel.org/all/20230109040625.3259642-1-quanfafu@gmail.com/ Signed-off-by: Quanfa Fu <quanfafu@gmail.com> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> |
||
Donglin Peng
|
8478cca1e3 |
tracing/probe: add a char type to show the character value of traced arguments
There are scenes that we want to show the character value of traced
arguments other than a decimal or hexadecimal or string value for debug
convinience. I add a new type named 'char' to do it and a new test case
file named 'kprobe_args_char.tc' to do selftest for char type.
For example:
The to be traced function is 'void demo_func(char type, char *name);', we
can add a kprobe event as follows to show argument values as we want:
echo 'p:myprobe demo_func $arg1:char +0($arg2):char[5]' > kprobe_events
we will get the following trace log:
... myprobe: (demo_func+0x0/0x29) arg1='A' arg2={'b','p','f','1',''}
Link: https://lore.kernel.org/all/20221219110613.367098-1-dolinux.peng@gmail.com/
Signed-off-by: Donglin Peng <dolinux.peng@gmail.com>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
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Masami Hiramatsu (Google)
|
133921530c |
tracing/eprobe: Fix to add filter on eprobe description in README file
Fix to add a description of the filter on eprobe in README file. This
is required to identify the kernel supports the filter on eprobe or not.
Link: https://lore.kernel.org/all/167309833728.640500.12232259238201433587.stgit@devnote3/
Fixes:
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Yang Jihong
|
f1c97a1b4e |
x86/kprobes: Fix arch_check_optimized_kprobe check within optimized_kprobe range
When arch_prepare_optimized_kprobe calculating jump destination address,
it copies original instructions from jmp-optimized kprobe (see
__recover_optprobed_insn), and calculated based on length of original
instruction.
arch_check_optimized_kprobe does not check KPROBE_FLAG_OPTIMATED when
checking whether jmp-optimized kprobe exists.
As a result, setup_detour_execution may jump to a range that has been
overwritten by jump destination address, resulting in an inval opcode error.
For example, assume that register two kprobes whose addresses are
<func+9> and <func+11> in "func" function.
The original code of "func" function is as follows:
0xffffffff816cb5e9 <+9>: push %r12
0xffffffff816cb5eb <+11>: xor %r12d,%r12d
0xffffffff816cb5ee <+14>: test %rdi,%rdi
0xffffffff816cb5f1 <+17>: setne %r12b
0xffffffff816cb5f5 <+21>: push %rbp
1.Register the kprobe for <func+11>, assume that is kp1, corresponding optimized_kprobe is op1.
After the optimization, "func" code changes to:
0xffffffff816cc079 <+9>: push %r12
0xffffffff816cc07b <+11>: jmp 0xffffffffa0210000
0xffffffff816cc080 <+16>: incl 0xf(%rcx)
0xffffffff816cc083 <+19>: xchg %eax,%ebp
0xffffffff816cc084 <+20>: (bad)
0xffffffff816cc085 <+21>: push %rbp
Now op1->flags == KPROBE_FLAG_OPTIMATED;
2. Register the kprobe for <func+9>, assume that is kp2, corresponding optimized_kprobe is op2.
register_kprobe(kp2)
register_aggr_kprobe
alloc_aggr_kprobe
__prepare_optimized_kprobe
arch_prepare_optimized_kprobe
__recover_optprobed_insn // copy original bytes from kp1->optinsn.copied_insn,
// jump address = <func+14>
3. disable kp1:
disable_kprobe(kp1)
__disable_kprobe
...
if (p == orig_p || aggr_kprobe_disabled(orig_p)) {
ret = disarm_kprobe(orig_p, true) // add op1 in unoptimizing_list, not unoptimized
orig_p->flags |= KPROBE_FLAG_DISABLED; // op1->flags == KPROBE_FLAG_OPTIMATED | KPROBE_FLAG_DISABLED
...
4. unregister kp2
__unregister_kprobe_top
...
if (!kprobe_disabled(ap) && !kprobes_all_disarmed) {
optimize_kprobe(op)
...
if (arch_check_optimized_kprobe(op) < 0) // because op1 has KPROBE_FLAG_DISABLED, here not return
return;
p->kp.flags |= KPROBE_FLAG_OPTIMIZED; // now op2 has KPROBE_FLAG_OPTIMIZED
}
"func" code now is:
0xffffffff816cc079 <+9>: int3
0xffffffff816cc07a <+10>: push %rsp
0xffffffff816cc07b <+11>: jmp 0xffffffffa0210000
0xffffffff816cc080 <+16>: incl 0xf(%rcx)
0xffffffff816cc083 <+19>: xchg %eax,%ebp
0xffffffff816cc084 <+20>: (bad)
0xffffffff816cc085 <+21>: push %rbp
5. if call "func", int3 handler call setup_detour_execution:
if (p->flags & KPROBE_FLAG_OPTIMIZED) {
...
regs->ip = (unsigned long)op->optinsn.insn + TMPL_END_IDX;
...
}
The code for the destination address is
0xffffffffa021072c: push %r12
0xffffffffa021072e: xor %r12d,%r12d
0xffffffffa0210731: jmp 0xffffffff816cb5ee <func+14>
However, <func+14> is not a valid start instruction address. As a result, an error occurs.
Link: https://lore.kernel.org/all/20230216034247.32348-3-yangjihong1@huawei.com/
Fixes:
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Yang Jihong
|
868a6fc0ca |
x86/kprobes: Fix __recover_optprobed_insn check optimizing logic
Since the following commit: commit |