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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
...
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>
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>
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>
- HTC ASIC3 LED
- New Functionality
- Provide generic led_get() which can be used by both DT and !DT platforms
- Fix-ups
- Convert a bunch of I2C subsystem users to the new probing API
- Explicitly provide missing include files
- Make use of led_init_default_state_get() and rid the custom variants
- Use simplified fwnode_device_is_compatible() API
- Provide some Device Tree additions / adaptions
- Fix some trivial spelling issues
- Bug Fixes
- Prevent device refcount leak during led_put() and of_led_get()
- Clear previous data from temporary led_pwm structure before processing next child
- Fix Clang's warning about incompatible function types when using devm_add_action*()
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Merge tag 'leds-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds
Pull LED updates from Lee Jones:
"Removed Drivers:
- HTC ASIC3 LED
New Functionality:
- Provide generic led_get() which can be used by both DT and !DT
platforms
Fix-ups:
- Convert a bunch of I2C subsystem users to the new probing API
- Explicitly provide missing include files
- Make use of led_init_default_state_get() and rid the custom
variants
- Use simplified fwnode_device_is_compatible() API
- Provide some Device Tree additions / adaptions
- Fix some trivial spelling issues
Bug Fixes:
- Prevent device refcount leak during led_put() and of_led_get()
- Clear previous data from temporary led_pwm structure before
processing next child
- Fix Clang's warning about incompatible function types when using
devm_add_action*()"
* tag 'leds-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/leds: (41 commits)
leds: Remove ide-disk trigger
dt-bindings: leds: Add disk write/read and usb-host/usb-gadget
Documentation: leds: Correct spelling
dt-bindings: leds: Document Bluetooth and WLAN triggers
leds: Remove asic3 driver
leds: simatic-ipc-leds-gpio: Make sure we have the GPIO providing driver
leds: tca6507: Convert to use fwnode_device_is_compatible()
leds: syscon: Get rid of custom led_init_default_state_get()
leds: pm8058: Get rid of custom led_init_default_state_get()
leds: pca955x: Get rid of custom led_init_default_state_get()
leds: mt6360: Get rid of custom led_init_default_state_get()
leds: mt6323: Get rid of custom led_init_default_state_get()
leds: bcm6358: Get rid of custom led_init_default_state_get()
leds: bcm6328: Get rid of custom led_init_default_state_get()
leds: an30259a: Get rid of custom led_init_default_state_get()
leds: Move led_init_default_state_get() to the global header
leds: Add missing includes and forward declarations in leds.h
leds: is31fl319x: Wrap mutex_destroy() for devm_add_action_or_rest()
leds: turris-omnia: Convert to i2c's .probe_new()
leds: tlc591xx: Convert to i2c's .probe_new()
...
- Add support for Kinetic KTZ8866 Backlight
- Remove Drivers
- Toshiba Sharp SL-6000 LCD and Backlight
- Fix-ups
- Provide some profiling optimisations with respect to pwm_get_state() and pwm_apply_state()
- Make use of the dev_err_probe() API
- Provide some Device Tree documentation additions / adaptions
- Drop fall-back legacy PWM probing support
- Convert over to new I2C probing API
- Fix incorrect documentation
- Make use of backlight_get_brightness() API
- Bug Fixes
- Fix disabling backlight on i.MX6 when inverted PWMs are used
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Merge tag 'backlight-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"New Drivers:
- Add support for Kinetic KTZ8866 Backlight
Removed Drivers:
- Toshiba Sharp SL-6000 LCD and Backlight
Fix-ups:
- Provide some profiling optimisations with respect to
pwm_get_state() and pwm_apply_state()
- Make use of the dev_err_probe() API
- Provide some Device Tree documentation additions / adaptions
- Drop fall-back legacy PWM probing support
- Convert over to new I2C probing API
- Fix incorrect documentation
- Make use of backlight_get_brightness() API
Bug Fixes:
- Fix disabling backlight on i.MX6 when inverted PWMs are used"
* tag 'backlight-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: ktz8866: Convert to i2c's .probe_new()
backlight: ktz8866: Add support for Kinetic KTZ8866 backlight
dt-bindings: leds: backlight: Add Kinetic KTZ8866 backlight
backlight: pwm_bl: Don't rely on a disabled PWM emiting inactive state
backlight: pwm_bl: Configure pwm only once per backlight toggle
backlight: Remove pxa tosa support
backlight: aat2870: Use backlight helper
backlight: ipaq_micro: Use backlight helper
backlight: arcxcnn: Use backlight helper
backlight: sky81452: Fix sky81452_bl_platform_data kernel-doc
backlight: pwm_bl: Drop support for legacy PWM probing
dt-bindings: backlight: qcom-wled: Add PMI8950 compatible
backlight: ktd253: Switch to use dev_err_probe() helper
backlight: backlight: Fix doc for backlight_device_get_by_name
- Change MFD support status from Supported to Maintained
- New Drivers
- Add support for the Intel Platform Management Component Interface (PMCI)
- Remove Drivers
- HTC PASIC3 LED/DS1WM
- Toshiba T7L66XB, TC6387XB and TC6393XB TMIO
- New Device Support
- Add support for N6000 Flash to Intel M10 BMC PMCI
- Add support for Lenovo Yoga Tab 3 to Intel CHTWC PMIC
- New Functionality
- Provide Reset support to Syscon
- Fix-ups
- Explicitly provide missing include files
- Pass platform type data/info via the SPI/I2C/DT registration strategy
- Lots of DT documentation / adaptions
- Replace scnprintf() with preferred sysfs_emit()
- Remove unused / superfluous code
- Fix some trivial whitesspace / spelling / grammatical issues
- Replace pm_power_off with new and improved register_sys_off_handler() API
- Bug Fixes
- Reintroduce RK808-clkout registration - fixing Wi-Fi and Bluetooth
- Repair the order of AXPxxx IRQ PEK RISE/FALL definitions
- Refuse to build CS5535 on unsupported UML architectures
- Fix memory leaks in error return paths
- Prevent refcount leaks in error return paths
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Merge tag 'mfd-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core Framework:
- Change MFD support status from Supported to Maintained
New Drivers:
- Add support for the Intel Platform Management Component Interface
(PMCI)
Removed Drivers:
- HTC PASIC3 LED/DS1WM
- Toshiba T7L66XB, TC6387XB and TC6393XB TMIO
New Device Support:
- Add support for N6000 Flash to Intel M10 BMC PMCI
- Add support for Lenovo Yoga Tab 3 to Intel CHTWC PMIC
New Functionality:
- Provide Reset support to Syscon
Fix-ups:
- Explicitly provide missing include files
- Pass platform type data/info via the SPI/I2C/DT registration
strategy
- Lots of DT documentation / adaptions
- Replace scnprintf() with preferred sysfs_emit()
- Remove unused / superfluous code
- Fix some trivial whitesspace / spelling / grammatical issues
- Replace pm_power_off with new and improved
register_sys_off_handler() API
Bug Fixes:
- Reintroduce RK808-clkout registration - fixing Wi-Fi and Bluetooth
- Repair the order of AXPxxx IRQ PEK RISE/FALL definitions
- Refuse to build CS5535 on unsupported UML architectures
- Fix memory leaks in error return paths
- Prevent refcount leaks in error return paths"
* tag 'mfd-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (40 commits)
dt-bindings: mfd: qcom,tcsr: Add compatible for IPQ5332
dt-bindings: mfd: Add NXP BBNSM
mfd: ntxec: Add version number for EC in Tolino Vision
dt-bindings: mfd: syscon: Add mt8365-syscfg
mfd: Remove toshiba tmio drivers
mfd: arizona: Use pm_runtime_resume_and_get() to prevent refcnt leak
mfd: syscon: Allow reset control for syscon devices
dt-bindings: mfd/syscon: Add resets property
dt-bindings: mfd: syscon: Add amd,pensando-elba-syscon compatible
dt-bindings: mfd: qcom,tcsr: Add compatible for MSM8226
mfd: simple-mfd-i2c: Fix incoherent comment regarding DT registration
mfd: axp20x: Switch to the sys-off handler API
mfd: core: Spelling s/compement/complement/
mfd: max8925: Remove the unused function irq_to_max8925()
mfd: qcom-pm8xxx: Remove set but unused variable 'rev'
dt-bindings: mfd: syscon: Document GXP register compatible
mfd: twl4030-power: Drop empty platform remove function
mfd: twl: Fix TWL6032 phy vbus detection
mfd: pcf50633-adc: Fix potential memleak in pcf50633_adc_async_read()
MAINTAINERS: Move MFD from a Supported to Maintaied state
...
- Performance tweaks for efifb earlycon by Andy
- Preparatory refactoring and cleanup work in the efivar layer by Johan,
which is needed to accommodate the Snapdragon arm64 laptops that
expose their EFI variable store via a TEE secure world API.
- Enhancements to the EFI memory map handling so that Xen dom0 can
safely access EFI configuration tables (Demi Marie)
- Wire up the newly introduced IBT/BTI flag in the EFI memory attributes
table, so that firmware that is generated with ENDBR/BTI landing pads
will be mapped with enforcement enabled.
- Clean up how we check and print the EFI revision exposed by the
firmware.
- Incorporate EFI memory attributes protocol definition contributed by
Evgeniy and wire it up in the EFI zboot code. This ensures that these
images can execute under new and stricter rules regarding the default
memory permissions for EFI page allocations. (More work is in progress
here)
- CPER header cleanup by Dan Williams
- Use a raw spinlock to protect the EFI runtime services stack on arm64
to ensure the correct semantics under -rt. (Pierre)
- EFI framebuffer quirk for Lenovo Ideapad by Darrell.
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Merge tag 'efi-next-for-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel:
"A healthy mix of EFI contributions this time:
- Performance tweaks for efifb earlycon (Andy)
- Preparatory refactoring and cleanup work in the efivar layer, which
is needed to accommodate the Snapdragon arm64 laptops that expose
their EFI variable store via a TEE secure world API (Johan)
- Enhancements to the EFI memory map handling so that Xen dom0 can
safely access EFI configuration tables (Demi Marie)
- Wire up the newly introduced IBT/BTI flag in the EFI memory
attributes table, so that firmware that is generated with ENDBR/BTI
landing pads will be mapped with enforcement enabled
- Clean up how we check and print the EFI revision exposed by the
firmware
- Incorporate EFI memory attributes protocol definition and wire it
up in the EFI zboot code (Evgeniy)
This ensures that these images can execute under new and stricter
rules regarding the default memory permissions for EFI page
allocations (More work is in progress here)
- CPER header cleanup (Dan Williams)
- Use a raw spinlock to protect the EFI runtime services stack on
arm64 to ensure the correct semantics under -rt (Pierre)
- EFI framebuffer quirk for Lenovo Ideapad (Darrell)"
* tag 'efi-next-for-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: (24 commits)
firmware/efi sysfb_efi: Add quirk for Lenovo IdeaPad Duet 3
arm64: efi: Make efi_rt_lock a raw_spinlock
efi: Add mixed-mode thunk recipe for GetMemoryAttributes
efi: x86: Wire up IBT annotation in memory attributes table
efi: arm64: Wire up BTI annotation in memory attributes table
efi: Discover BTI support in runtime services regions
efi/cper, cxl: Remove cxl_err.h
efi: Use standard format for printing the EFI revision
efi: Drop minimum EFI version check at boot
efi: zboot: Use EFI protocol to remap code/data with the right attributes
efi/libstub: Add memory attribute protocol definitions
efi: efivars: prevent double registration
efi: verify that variable services are supported
efivarfs: always register filesystem
efi: efivars: add efivars printk prefix
efi: Warn if trying to reserve memory under Xen
efi: Actually enable the ESRT under Xen
efi: Apply allowlist to EFI configuration tables when running under Xen
efi: xen: Implement memory descriptor lookup based on hypercall
efi: memmap: Disregard bogus entries instead of returning them
...
- Fix ftrace2bconf.sh tool for checking event enable status correctly.
- Add CONFIG_BOOT_CONFIG_FORCE to apply bootconfig without 'bootconfig'
boot parameter.
- Enable CONFIG_BOOT_CONFIG_FORCE by default if a bootconfig is embedded
in the kernel.
- Increase max number of nodes of bootconfig to 8192.
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Merge tag 'bootconfig-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull bootconfig updates from Masami Hiramatsu:
- Fix ftrace2bconf.sh tool for checking event enable status correctly
- Add CONFIG_BOOT_CONFIG_FORCE to apply bootconfig without 'bootconfig'
boot parameter
- Enable CONFIG_BOOT_CONFIG_FORCE by default if a bootconfig is
embedded in the kernel
- Increase max number of nodes of bootconfig to 8192
* tag 'bootconfig-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
bootconfig: Increase max nodes of bootconfig from 1024 to 8192 for DCC support
bootconfig: Default BOOT_CONFIG_FORCE to y if BOOT_CONFIG_EMBED
Allow forcing unconditional bootconfig processing
tools/bootconfig: fix single & used for logical condition
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.
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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
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 8b41fc4454e ("kbuild: create modules.builtin without
Makefile.modbuiltin or tristate.conf") which helps avoid traversing the build
tree twice. After this commit we now rely on the MODULE_LICENSE() tag to
determine in a *faster* way if something being built could be a module and
we dump this into the modules.builtin so that modprobe can simply succeed
if a module is known to already be built-in. The cleanup work on MODULE_LICENSE()
simply stems to assist false positives from userspace for things as built-in
when they *cannot ever* be modules as we don't even tristate the code as
modular. This work also helps with the SPDX effort as some code is not clearly
identified with a tag. In the *future*, once all *possible* modules are
confirmed to have a respective SPDX tag, we *may* just be able to replace the
MODULE_LICENSE() to instead be generated automatically through inference of
the respective module SPDX tags.
[0] https://lkml.kernel.org/r/20221209062919.1096779-1-mcgrof@kernel.org
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Merge tag 'modules-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull modules updates from Luis Chamberlain:
"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 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"
[0] https://lkml.kernel.org/r/20221209062919.1096779-1-mcgrof@kernel.org
* tag 'modules-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
Documentation: livepatch: module-elf-format: Remove local klp_modinfo definition
module.h: Document klp_modinfo struct using kdoc
module: Use kstrtobool() instead of strtobool()
kernel/params.c: Use kstrtobool() instead of strtobool()
test_kmod: stop kernel-doc warnings
kbuild: Modify default INSTALL_MOD_DIR from extra to updates
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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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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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Merge tag 'slab-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab updates from Vlastimil Babka:
"This time it's just a bunch of smaller cleanups and fixes for SLAB and
SLUB:
- Make it possible to use kmem_cache_alloc_bulk() early in boot when
interrupts are not yet enabled, as code doing that started to
appear via new maple tree users (Thomas Gleixner)
- Fix debugfs-related memory leak in SLUB (Greg Kroah-Hartman)
- Use the standard idiom to get head page of folio (SeongJae Park)
- Simplify and inline is_debug_pagealloc_cache() in SLAB (lvqian)
- Remove unused variable in SLAB (Gou Hao)"
* tag 'slab-for-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
mm, slab/slub: Ensure kmem_cache_alloc_bulk() is available early
mm/slub: fix memory leak with using debugfs_lookup()
mm/slab.c: cleanup is_debug_pagealloc_cache()
mm/sl{a,u}b: fix wrong usages of folio_page() for getting head pages
mm/slab: remove unused slab_early_init
- 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.
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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
With this refcnt added in sctp_stream_priorities, we don't need to
traverse all streams to check if the prio is used by other streams
when freeing one stream's prio in sctp_sched_prio_free_sid(). This
can avoid a nested loop (up to 65535 * 65535), which may cause a
stuck as Ying reported:
watchdog: BUG: soft lockup - CPU#23 stuck for 26s! [ksoftirqd/23:136]
Call Trace:
<TASK>
sctp_sched_prio_free_sid+0xab/0x100 [sctp]
sctp_stream_free_ext+0x64/0xa0 [sctp]
sctp_stream_free+0x31/0x50 [sctp]
sctp_association_free+0xa5/0x200 [sctp]
Note that it doesn't need to use refcount_t type for this counter,
as its accessing is always protected under the sock lock.
v1->v2:
- add a check in sctp_sched_prio_set to avoid the possible prio_head
refcnt overflow.
Fixes: 9ed7bfc79542 ("sctp: fix memory leak in sctp_stream_outq_migrate()")
Reported-by: Ying Xu <yinxu@redhat.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/825eb0c905cb864991eba335f4a2b780e543f06b.1677085641.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Document the compatible for the QDU1000 mailbox.
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
IPQ5332 has the APSS clock controller utilizing the same register space
as the APCS, so provide access to the APSS utilizing a child device like
other IPQ chipsets.
Like IPQ6018, the same controller and driver is used, so utilize IPQ6018
match data for IPQ5332.
Signed-off-by: Kathiravan T <quic_kathirav@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Add the mailbox compatible for the IPQ5332 SoC.
Since the IPQ5332 mailbox is compatible with the IPQ6018, lets create the
fallback to ipq6018 compatible, so that we don't bloat the of_device_id
table in the driver.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Kathiravan T <quic_kathirav@quicinc.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Convert Qualcomm G-Link RPM edge binding to DT schema. Move it to
remoteproc as it better suits the purpose - communication channel with
remote processor.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
MSM8996 also has the clock-related part of the APCS mailbox device.
Follow the usual pattern and create a child device to handle these
clocks.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Add the #clock-cells property to the MSM8996 example, as the APCS block
is going to provide the `sys_apcs_aux' clock to the consumers.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Add missing platforms to the conditional clauses selecting whether the
clocks/clock-names properties are required or whether they must be
omitted.
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
The schema incorrectly lists some of the platforms in the statement
requiring clocks/clock-names. Correct this by moving platforms not
requiring additional clocks to the separate clause.
Fixes: 0d17014e9189 ("dt-bindings: mailbox: Add binding for SDX55 APCS")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
On msm8976 platform APCS also uses syscon compatible, so move it to the
block of compatibles using SoC-compat together with syscon.
Fixes: 60545466180e ("dt-bindings: mailbox: qcom,apcs-kpss-global: Add syscon const for relevant entries")
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
The commit 0d17014e9189 ("dt-bindings: mailbox: Add binding for SDX55
APCS") added SDX55 compatible string to one of clock-selection
conditions, but failed to add one to the main schema's compatible list.
Fix this omission.
Fixes: 0d17014e9189 ("dt-bindings: mailbox: Add binding for SDX55 APCS")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Add a compatible for the ipcc on sa8775p platforms.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Using flexible array is more straight forward. It
- saves 1 pointer in the 'zynqmp_ipi_pdata' structure
- saves an indirection when using this array
- saves some LoC and avoids some always spurious pointer arithmetic
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
- 'perf lock contention' improvements:
- Add -o/--lock-owner option:
$ sudo ./perf lock contention -abo -- ./perf bench sched pipe
# Running 'sched/pipe' benchmark:
# Executed 1000000 pipe operations between two processes
Total time: 4.766 [sec]
4.766540 usecs/op
209795 ops/sec
contended total wait max wait avg wait pid owner
403 565.32 us 26.81 us 1.40 us -1 Unknown
4 27.99 us 8.57 us 7.00 us 1583145 sched-pipe
1 8.25 us 8.25 us 8.25 us 1583144 sched-pipe
1 2.03 us 2.03 us 2.03 us 5068 chrome
The owner is unknown in most cases. Filtering only for the mutex locks, it
will more likely get the owners.
- -S/--callstack-filter is to limit display entries having the given
string in the callstack
$ sudo ./perf lock contention -abv -S net sleep 1
...
contended total wait max wait avg wait type caller
5 70.20 us 16.13 us 14.04 us spinlock __dev_queue_xmit+0xb6d
0xffffffffa5dd1c60 _raw_spin_lock+0x30
0xffffffffa5b8f6ed __dev_queue_xmit+0xb6d
0xffffffffa5cd8267 ip6_finish_output2+0x2c7
0xffffffffa5cdac14 ip6_finish_output+0x1d4
0xffffffffa5cdb477 ip6_xmit+0x457
0xffffffffa5d1fd17 inet6_csk_xmit+0xd7
0xffffffffa5c5f4aa __tcp_transmit_skb+0x54a
0xffffffffa5c6467d tcp_keepalive_timer+0x2fd
Please note that to have the -b option (BPF) working above one has to build
with BUILD_BPF_SKEL=1.
- Add more 'perf test' entries to test these new features.
- Add Ian Rogers to MAINTAINERS as a perf tools reviewer.
- Add support for retire latency feature (pipeline stall of a instruction
compared to the previous one, in cycles) present on some Intel processors.
- Add 'perf c2c' report option to show false sharing with adjacent cachelines, to
be used in machines with cacheline prefetching, where accesses to a cacheline
brings the next one too.
- Skip 'perf test bpf' when the required kernel-debuginfo package isn't installed.
perf script:
- Add 'cgroup' field for 'perf script' output:
$ perf record --all-cgroups -- true
$ perf script -F comm,pid,cgroup
true 337112 /user.slice/user-657345.slice/user@657345.service/...
true 337112 /user.slice/user-657345.slice/user@657345.service/...
true 337112 /user.slice/user-657345.slice/user@657345.service/...
true 337112 /user.slice/user-657345.slice/user@657345.service/...
- Add support for showing branch speculation information in 'perf
script' and in the 'perf report' raw dump (-D).
perf record:
- Fix 'perf record' segfault with --overwrite and --max-size.
Intel PT:
- Add support for synthesizing "cycle" events from Intel PT traces as we
support "instruction" events when Intel PT CYC packets are available. This
enables much more accurate profiles than when using the regular 'perf record -e
cycles' (the default) when the workload lasts for very short periods (<10ms).
- .plt symbol handling improvements, better handling IBT (in the past
MPX) done in the context of decoding Intel PT processor traces, IFUNC
symbols on x86_64, static executables, understanding .plt.got symbols on
x86_64.
- Add a 'perf test' to test symbol resolution, part of the .plt
improvements series, this tests things like symbol size in contexts
where only the symbol start is available (kallsyms), etc.
- Better handle auxtrace/Intel PT data when using pipe mode (perf record sleep 1|perf report).
- Fix symbol lookup with kcore with multiple segments match stext,
getting the symbol resolution to just show DSOs as unknown.
ARM:
- Timestamp improvements for ARM64 systems with ETMv4 (Embedded Trace
Macrocell v4).
- Ensure ARM64 CoreSight timestamps don't go backwards.
- Document that ARM64 SPE (Statistical Profiling Extension) is used with 'perf c2c/mem'.
- Add raw decoding for ARM64 SPEv1.2 previous branch address.
- Update neoverse-n2-v2 ARM vendor events (JSON tables): topdown L1, TLB,
cache, branch, PE utilization and instruction mix metrics.
- Update decoder code for OpenCSD version 1.4, on ARM64 systems.
- Fix command line auto-complete of CPU events on aarch64.
perf test/bench:
- Switch basic BPF filtering test to use syscall tracepoint to avoid the
variable number of probes inserted when using the previous probe point
(do_epoll_wait) that happens on different CPU architectures.
- Fix DWARF unwind test by adding non-inline to expected function in a
backtrace.
- Use 'grep -c' where the longer form 'grep | wc -l' was being used.
- Add getpid and execve benchmarks to 'perf bench syscall'.
Miscellaneous:
- Avoid d3-flame-graph package dependency in 'perf script flamegraph',
making this feature more generally available.
- Add JSON metric events to present CPI stall cycles in Power10.
- Assorted improvements/refactorings on the JSON metrics parsing code.
Build:
- Fix 'perf probe' and 'perf test' when libtraceevent isn't linked, as
several tests use tracepoints, those should be skipped.
- More fallout fixes for the removal of tools/lib/traceevent/.
- Fix build error when linking with libpfm.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-for-v6.3-1-2023-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
Pull perf tools updates from Arnaldo Carvalho de Melo:
"Miscellaneous:
- Add Ian Rogers to MAINTAINERS as a perf tools reviewer.
- Add support for retire latency feature (pipeline stall of a
instruction compared to the previous one, in cycles) present on
some Intel processors.
- Add 'perf c2c' report option to show false sharing with adjacent
cachelines, to be used in machines with cacheline prefetching,
where accesses to a cacheline brings the next one too.
- Skip 'perf test bpf' when the required kernel-debuginfo package
isn't installed.
- Avoid d3-flame-graph package dependency in 'perf script flamegraph',
making this feature more generally available.
- Add JSON metric events to present CPI stall cycles in Power10.
- Assorted improvements/refactorings on the JSON metrics parsing
code.
perf lock contention:
- Add -o/--lock-owner option:
$ sudo ./perf lock contention -abo -- ./perf bench sched pipe
# Running 'sched/pipe' benchmark:
# Executed 1000000 pipe operations between two processes
Total time: 4.766 [sec]
4.766540 usecs/op
209795 ops/sec
contended total wait max wait avg wait pid owner
403 565.32 us 26.81 us 1.40 us -1 Unknown
4 27.99 us 8.57 us 7.00 us 1583145 sched-pipe
1 8.25 us 8.25 us 8.25 us 1583144 sched-pipe
1 2.03 us 2.03 us 2.03 us 5068 chrome
The owner is unknown in most cases. Filtering only for the
mutex locks, it will more likely get the owners.
- -S/--callstack-filter is to limit display entries having the given
string in the callstack:
$ sudo ./perf lock contention -abv -S net sleep 1
...
contended total wait max wait avg wait type caller
5 70.20 us 16.13 us 14.04 us spinlock __dev_queue_xmit+0xb6d
0xffffffffa5dd1c60 _raw_spin_lock+0x30
0xffffffffa5b8f6ed __dev_queue_xmit+0xb6d
0xffffffffa5cd8267 ip6_finish_output2+0x2c7
0xffffffffa5cdac14 ip6_finish_output+0x1d4
0xffffffffa5cdb477 ip6_xmit+0x457
0xffffffffa5d1fd17 inet6_csk_xmit+0xd7
0xffffffffa5c5f4aa __tcp_transmit_skb+0x54a
0xffffffffa5c6467d tcp_keepalive_timer+0x2fd
Please note that to have the -b option (BPF) working above one has
to build with BUILD_BPF_SKEL=1.
- Add more 'perf test' entries to test these new features.
perf script:
- Add 'cgroup' field for 'perf script' output:
$ perf record --all-cgroups -- true
$ perf script -F comm,pid,cgroup
true 337112 /user.slice/user-657345.slice/user@657345.service/...
true 337112 /user.slice/user-657345.slice/user@657345.service/...
true 337112 /user.slice/user-657345.slice/user@657345.service/...
true 337112 /user.slice/user-657345.slice/user@657345.service/...
- Add support for showing branch speculation information in 'perf
script' and in the 'perf report' raw dump (-D).
perf record:
- Fix 'perf record' segfault with --overwrite and --max-size.
perf test/bench:
- Switch basic BPF filtering test to use syscall tracepoint to avoid
the variable number of probes inserted when using the previous
probe point (do_epoll_wait) that happens on different CPU
architectures.
- Fix DWARF unwind test by adding non-inline to expected function in
a backtrace.
- Use 'grep -c' where the longer form 'grep | wc -l' was being used.
- Add getpid and execve benchmarks to 'perf bench syscall'.
Intel PT:
- Add support for synthesizing "cycle" events from Intel PT traces as
we support "instruction" events when Intel PT CYC packets are
available. This enables much more accurate profiles than when using
the regular 'perf record -e cycles' (the default) when the workload
lasts for very short periods (<10ms).
- .plt symbol handling improvements, better handling IBT (in the past
MPX) done in the context of decoding Intel PT processor traces,
IFUNC symbols on x86_64, static executables, understanding .plt.got
symbols on x86_64.
- Add a 'perf test' to test symbol resolution, part of the .plt
improvements series, this tests things like symbol size in contexts
where only the symbol start is available (kallsyms), etc.
- Better handle auxtrace/Intel PT data when using pipe mode (perf
record sleep 1|perf report).
- Fix symbol lookup with kcore with multiple segments match stext,
getting the symbol resolution to just show DSOs as unknown.
ARM:
- Timestamp improvements for ARM64 systems with ETMv4 (Embedded Trace
Macrocell v4).
- Ensure ARM64 CoreSight timestamps don't go backwards.
- Document that ARM64 SPE (Statistical Profiling Extension) is used
with 'perf c2c/mem'.
- Add raw decoding for ARM64 SPEv1.2 previous branch address.
- Update neoverse-n2-v2 ARM vendor events (JSON tables): topdown L1,
TLB, cache, branch, PE utilization and instruction mix metrics.
- Update decoder code for OpenCSD version 1.4, on ARM64 systems.
- Fix command line auto-complete of CPU events on aarch64.
Build:
- Fix 'perf probe' and 'perf test' when libtraceevent isn't linked,
as several tests use tracepoints, those should be skipped.
- More fallout fixes for the removal of tools/lib/traceevent/.
- Fix build error when linking with libpfm"
* tag 'perf-tools-for-v6.3-1-2023-02-22' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (114 commits)
perf tests stat_all_metrics: Change true workload to sleep workload for system wide check
perf vendor events power10: Add JSON metric events to present CPI stall cycles in powerpc
perf intel-pt: Synthesize cycle events
perf c2c: Add report option to show false sharing in adjacent cachelines
perf record: Fix segfault with --overwrite and --max-size
perf stat: Avoid merging/aggregating metric counts twice
perf tools: Fix perf tool build error in util/pfm.c
perf tools: Fix auto-complete on aarch64
perf lock contention: Support old rw_semaphore type
perf lock contention: Add -o/--lock-owner option
perf lock contention: Fix to save callstack for the default modified
perf test bpf: Skip test if kernel-debuginfo is not present
perf probe: Update the exit error codes in function try_to_find_probe_trace_event
perf script: Fix missing Retire Latency fields option documentation
perf event x86: Add retire_lat when synthesizing PERF_SAMPLE_WEIGHT_STRUCT
perf test x86: Support the retire_lat (Retire Latency) sample_type check
perf test bpf: Check for libtraceevent support
perf script: Support Retire Latency
perf report: Support Retire Latency
perf lock contention: Support filters for different aggregation
...
- 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
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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
...
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.
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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
- Use total duration to calculate average in rtla osnoise_hist
- Use 2 digit precision for displaying average
- Print an intuitive auto analysis of timerlat results
- Add auto analysis to timerlat top
- Add hwnoise, which is the same as osnoise but focuses on hardware
- Small clean ups
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Merge tag 'trace-tools-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing tools updates from Steven Rostedt:
- Use total duration to calculate average in rtla osnoise_hist
- Use 2 digit precision for displaying average
- Print an intuitive auto analysis of timerlat results
- Add auto analysis to timerlat top
- Add hwnoise, which is the same as osnoise but focuses on hardware
- Small clean ups
* tag 'trace-tools-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
Documentation/rtla: Add hwnoise man page
rtla: Add hwnoise tool
Documentation/rtla: Add timerlat-top auto-analysis options
rtla/timerlat: Add auto-analysis support to timerlat top
rtla/timerlat: Add auto-analysis core
tools/tracing/rtla: osnoise_hist: display average with two-digit precision
tools/tracing/rtla: osnoise_hist: use total duration for average calculation
tools/rv: Remove unneeded semicolon
devm_request_region is for I/O regions. Use devm_request_mem_region
instead. This fixes the driver failing to probe since 99df45c9e0a4
("sunhme: fix an IS_ERR() vs NULL check in probe"), which checked the
result.
Fixes: 914d9b2711dd ("sunhme: switch to devres")
Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://lore.kernel.org/r/20230222204242.2658247-1-seanga2@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
- Fix three instances that the tty is not given back to the console on exit.
Forcing the user to do a "reset" to get the console back.
- Fix the console monitor to not hang when too much data is given by the ssh
output.
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Merge tag 'ktest-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest updates from Steven Rostedt:
- Fix three instances that the tty is not given back to the console on
exit. Forcing the user to do a "reset" to get the console back.
- Fix the console monitor to not hang when too much data is given by
the ssh output.
* tag 'ktest-v6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest: Restore stty setting at first in dodie
ktest.pl: Add RUN_TIMEOUT option with default unlimited
ktest.pl: Give back console on Ctrt^C on monitor
ktest.pl: Fix missing "end_monitor" when machine check fails
This KUnit update for Linux 6.3-rc1 consists of cleanups, new features,
and documentation updates:
-- adds Function Redirection API to isolate the code being tested from
other parts of the kernel. functionredirection.rst has the details.
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Merge tag 'linux-kselftest-kunit-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit update from Shuah Khan:
- add Function Redirection API to isolate the code being tested from
other parts of the kernel.
Documentation/dev-tools/kunit/api/functionredirection.rst has the
details.
* tag 'linux-kselftest-kunit-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: Add printf attribute to fail_current_test_impl
lib/hashtable_test.c: add test for the hashtable structure
Documentation: Add Function Redirection API docs
kunit: Expose 'static stub' API to redirect functions
kunit: Add "hooks" to call into KUnit when it's built as a module
kunit: kunit.py extract handlers
tools/testing/kunit/kunit.py: remove redundant double check
o Add s390 support.
o Add support for the ARM Thumb1 instruction set.
o Fix O_* flags definitions for open() and fcntl().
o Make errno a weak symbol instead of a static variable.
o Export environ as a weak symbol.
o Export _auxv as a weak symbol for auxilliary vector retrieval.
o Implement getauxval() and getpagesize().
o Further improve self tests, including permitting userland testing
of the nolibc library.
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Merge tag 'nolibc.2023.02.06a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull nolibc updates from Paul McKenney:
- Add s390 support
- Add support for the ARM Thumb1 instruction set
- Fix O_* flags definitions for open() and fcntl()
- Make errno a weak symbol instead of a static variable
- Export environ as a weak symbol
- Export _auxv as a weak symbol for auxilliary vector retrieval
- Implement getauxval() and getpagesize()
- Further improve self tests, including permitting userland testing of
the nolibc library
* tag 'nolibc.2023.02.06a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (28 commits)
selftests/nolibc: Add a "run-user" target to test the program in user land
selftests/nolibc: Support "x86_64" for arch name
selftests/nolibc: Add `getpagesize(2)` selftest
nolibc/sys: Implement `getpagesize(2)` function
nolibc/stdlib: Implement `getauxval(3)` function
tools/nolibc: add auxiliary vector retrieval for s390
tools/nolibc: add auxiliary vector retrieval for mips
tools/nolibc: add auxiliary vector retrieval for riscv
tools/nolibc: add auxiliary vector retrieval for arm
tools/nolibc: add auxiliary vector retrieval for arm64
tools/nolibc: add auxiliary vector retrieval for x86_64
tools/nolibc: add auxiliary vector retrieval for i386
tools/nolibc: export environ as a weak symbol on s390
tools/nolibc: export environ as a weak symbol on riscv
tools/nolibc: export environ as a weak symbol on mips
tools/nolibc: export environ as a weak symbol on arm
tools/nolibc: export environ as a weak symbol on arm64
tools/nolibc: export environ as a weak symbol on i386
tools/nolibc: export environ as a weak symbol on x86_64
tools/nolibc: make errno a weak symbol instead of a static one
...
Add diagnostics to the x86 NMI handler to help detect NMI-handler bugs
on the one hand and failing hardware on the other.
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Merge tag 'nmi.2023.02.14a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull x86 NMI diagnostics from Paul McKenney:
"Add diagnostics to the x86 NMI handler to help detect NMI-handler bugs
on the one hand and failing hardware on the other"
* tag 'nmi.2023.02.14a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
x86/nmi: Print reasons why backtrace NMIs are ignored
x86/nmi: Accumulate NMI-progress evidence in exc_nmi()
Documentation updates.
Add read-modify-write sequences, which means that stronger primitives
more consistently result in stronger ordering, while still remaining in
the envelope of the hardware that supports Linux.
Address, data, and control dependencies used to ignore data that was
stored in temporaries. This update extends these dependency chains to
include unmarked intra-thread stores and loads. Note that these unmarked
stores and loads should not be concurrently accessed from multiple
threads, and doing so will cause LKMM to flag such accesses as data races.
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Merge tag 'lkmm.2023.02.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull LKMM (Linux Kernel Memory Model) updates from Paul McKenney:
"Documentation updates.
Add read-modify-write sequences, which means that stronger primitives
more consistently result in stronger ordering, while still remaining
in the envelope of the hardware that supports Linux.
Address, data, and control dependencies used to ignore data that was
stored in temporaries. This update extends these dependency chains to
include unmarked intra-thread stores and loads. Note that these
unmarked stores and loads should not be concurrently accessed from
multiple threads, and doing so will cause LKMM to flag such accesses
as data races"
* tag 'lkmm.2023.02.15a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
tools: memory-model: Make plain accesses carry dependencies
Documentation: Fixed a typo in atomic_t.txt
tools: memory-model: Add rmw-sequences to the LKMM
locking/memory-barriers.txt: Improve documentation for writel() example
cgroup ID is an userspace-visible 64bit value uniquely identifying a given
cgroup. As the IDs are used widely, it's useful to be able to look up the
matching cgroups. Add bpf_cgroup_from_id().
v2: Separate out selftest into its own patch as suggested by Alexei.
Signed-off-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/Y/bBaG96t0/gQl9/@slm.duckdns.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
When checksum offload is disabled in the driver via ethtool,
the PTP 1-step sync packets contain incorrect checksum, since
the stack calculates the checksum before driver updates
PTP timestamp field in the packet. This results in PTP packets
getting dropped at the other end. This patch fixes the issue by
re-calculating the UDP checksum after updating PTP
timestamp field in the driver.
Fixes: 2958d17a8984 ("octeontx2-pf: Add support for ptp 1-step mode on CN10K silicon")
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: Sai Krishna <saikrishnag@marvell.com>
Link: https://lore.kernel.org/r/20230222113600.1965116-1-saikrishnag@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Oleksij Rempel says:
====================
net: phy: EEE fixes
changes v3:
- add kernel test robot tags to commit log
- reword comment for genphy_c45_an_config_eee_aneg() function
changes v2:
- restore previous ethtool set logic for the case where advertisements
are not provided by user space.
- use ethtool_convert_legacy_u32_to_link_mode() where possible
- genphy_c45_an_config_eee_aneg(): move adv initialization in to the if
scope.
Different EEE related fixes.
====================
Link: https://lore.kernel.org/r/20230222055043.113711-1-o.rempel@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Currently, it is possible to let some PHYs to advertise not supported
EEE link modes. So, validate them before overwriting existing
configuration.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Linus Torvalds
Song Chen
Gal Pressman
Deepak R Varma
Xin Long
Melody Olvera
Kathiravan T
Krzysztof Kozlowski
Dmitry Baryshkov
Bartosz Golaszewski
Alain Volmat
Christophe JAILLET
Stephen Boyd
Sean Anderson
Tejun Heo
Geetha sowjanya
Paolo Abeni
Oleksij Rempel