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- The hierarchical timer pull model
When timer wheel timers are armed they are placed into the timer wheel
of a CPU which is likely to be busy at the time of expiry. This is done
to avoid wakeups on potentially idle CPUs.
This is wrong in several aspects:
1) The heuristics to select the target CPU are wrong by
definition as the chance to get the prediction right is close
to zero.
2) Due to #1 it is possible that timers are accumulated on a
single target CPU
3) The required computation in the enqueue path is just overhead for
dubious value especially under the consideration that the vast
majority of timer wheel timers are either canceled or rearmed
before they expire.
The timer pull model avoids the above by removing the target
computation on enqueue and queueing timers always on the CPU on which
they get armed.
This is achieved by having separate wheels for CPU pinned timers and
global timers which do not care about where they expire.
As long as a CPU is busy it handles both the pinned and the global
timers which are queued on the CPU local timer wheels.
When a CPU goes idle it evaluates its own timer wheels:
- If the first expiring timer is a pinned timer, then the global
timers can be ignored as the CPU will wake up before they expire.
- If the first expiring timer is a global timer, then the expiry time
is propagated into the timer pull hierarchy and the CPU makes sure
to wake up for the first pinned timer.
The timer pull hierarchy organizes CPUs in groups of eight at the
lowest level and at the next levels groups of eight groups up to the
point where no further aggregation of groups is required, i.e. the
number of levels is log8(NR_CPUS). The magic number of eight has been
established by experimention, but can be adjusted if needed.
In each group one busy CPU acts as the migrator. It's only one CPU to
avoid lock contention on remote timer wheels.
The migrator CPU checks in its own timer wheel handling whether there
are other CPUs in the group which have gone idle and have global timers
to expire. If there are global timers to expire, the migrator locks the
remote CPU timer wheel and handles the expiry.
Depending on the group level in the hierarchy this handling can require
to walk the hierarchy downwards to the CPU level.
Special care is taken when the last CPU goes idle. At this point the
CPU is the systemwide migrator at the top of the hierarchy and it
therefore cannot delegate to the hierarchy. It needs to arm its own
timer device to expire either at the first expiring timer in the
hierarchy or at the first CPU local timer, which ever expires first.
This completely removes the overhead from the enqueue path, which is
e.g. for networking a true hotpath and trades it for a slightly more
complex idle path.
This has been in development for a couple of years and the final series
has been extensively tested by various teams from silicon vendors and
ran through extensive CI.
There have been slight performance improvements observed on network
centric workloads and an Intel team confirmed that this allows them to
power down a die completely on a mult-die socket for the first time in
a mostly idle scenario.
There is only one outstanding ~1.5% regression on a specific overloaded
netperf test which is currently investigated, but the rest is either
positive or neutral performance wise and positive on the power
management side.
- Fixes for the timekeeping interpolation code for cross-timestamps:
cross-timestamps are used for PTP to get snapshots from hardware timers
and interpolated them back to clock MONOTONIC. The changes address a
few corner cases in the interpolation code which got the math and logic
wrong.
- Simplifcation of the clocksource watchdog retry logic to automatically
adjust to handle larger systems correctly instead of having more
incomprehensible command line parameters.
- Treewide consolidation of the VDSO data structures.
- The usual small improvements and cleanups all over the place.
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Merge tag 'timers-core-2024-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"A large set of updates and features for timers and timekeeping:
- The hierarchical timer pull model
When timer wheel timers are armed they are placed into the timer
wheel of a CPU which is likely to be busy at the time of expiry.
This is done to avoid wakeups on potentially idle CPUs.
This is wrong in several aspects:
1) The heuristics to select the target CPU are wrong by
definition as the chance to get the prediction right is
close to zero.
2) Due to #1 it is possible that timers are accumulated on
a single target CPU
3) The required computation in the enqueue path is just overhead
for dubious value especially under the consideration that the
vast majority of timer wheel timers are either canceled or
rearmed before they expire.
The timer pull model avoids the above by removing the target
computation on enqueue and queueing timers always on the CPU on
which they get armed.
This is achieved by having separate wheels for CPU pinned timers
and global timers which do not care about where they expire.
As long as a CPU is busy it handles both the pinned and the global
timers which are queued on the CPU local timer wheels.
When a CPU goes idle it evaluates its own timer wheels:
- If the first expiring timer is a pinned timer, then the global
timers can be ignored as the CPU will wake up before they
expire.
- If the first expiring timer is a global timer, then the expiry
time is propagated into the timer pull hierarchy and the CPU
makes sure to wake up for the first pinned timer.
The timer pull hierarchy organizes CPUs in groups of eight at the
lowest level and at the next levels groups of eight groups up to
the point where no further aggregation of groups is required, i.e.
the number of levels is log8(NR_CPUS). The magic number of eight
has been established by experimention, but can be adjusted if
needed.
In each group one busy CPU acts as the migrator. It's only one CPU
to avoid lock contention on remote timer wheels.
The migrator CPU checks in its own timer wheel handling whether
there are other CPUs in the group which have gone idle and have
global timers to expire. If there are global timers to expire, the
migrator locks the remote CPU timer wheel and handles the expiry.
Depending on the group level in the hierarchy this handling can
require to walk the hierarchy downwards to the CPU level.
Special care is taken when the last CPU goes idle. At this point
the CPU is the systemwide migrator at the top of the hierarchy and
it therefore cannot delegate to the hierarchy. It needs to arm its
own timer device to expire either at the first expiring timer in
the hierarchy or at the first CPU local timer, which ever expires
first.
This completely removes the overhead from the enqueue path, which
is e.g. for networking a true hotpath and trades it for a slightly
more complex idle path.
This has been in development for a couple of years and the final
series has been extensively tested by various teams from silicon
vendors and ran through extensive CI.
There have been slight performance improvements observed on network
centric workloads and an Intel team confirmed that this allows them
to power down a die completely on a mult-die socket for the first
time in a mostly idle scenario.
There is only one outstanding ~1.5% regression on a specific
overloaded netperf test which is currently investigated, but the
rest is either positive or neutral performance wise and positive on
the power management side.
- Fixes for the timekeeping interpolation code for cross-timestamps:
cross-timestamps are used for PTP to get snapshots from hardware
timers and interpolated them back to clock MONOTONIC. The changes
address a few corner cases in the interpolation code which got the
math and logic wrong.
- Simplifcation of the clocksource watchdog retry logic to
automatically adjust to handle larger systems correctly instead of
having more incomprehensible command line parameters.
- Treewide consolidation of the VDSO data structures.
- The usual small improvements and cleanups all over the place"
* tag 'timers-core-2024-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (62 commits)
timer/migration: Fix quick check reporting late expiry
tick/sched: Fix build failure for CONFIG_NO_HZ_COMMON=n
vdso/datapage: Quick fix - use asm/page-def.h for ARM64
timers: Assert no next dyntick timer look-up while CPU is offline
tick: Assume timekeeping is correctly handed over upon last offline idle call
tick: Shut down low-res tick from dying CPU
tick: Split nohz and highres features from nohz_mode
tick: Move individual bit features to debuggable mask accesses
tick: Move got_idle_tick away from common flags
tick: Assume the tick can't be stopped in NOHZ_MODE_INACTIVE mode
tick: Move broadcast cancellation up to CPUHP_AP_TICK_DYING
tick: Move tick cancellation up to CPUHP_AP_TICK_DYING
tick: Start centralizing tick related CPU hotplug operations
tick/sched: Don't clear ts::next_tick again in can_stop_idle_tick()
tick/sched: Rename tick_nohz_stop_sched_tick() to tick_nohz_full_stop_tick()
tick: Use IS_ENABLED() whenever possible
tick/sched: Remove useless oneshot ifdeffery
tick/nohz: Remove duplicate between lowres and highres handlers
tick/nohz: Remove duplicate between tick_nohz_switch_to_nohz() and tick_setup_sched_timer()
hrtimer: Select housekeeping CPU during migration
...
- Core:
- Make affinity changes immediately effective for interrupt
threads. This reduces the impact on isolated CPUs as it pulls over the
thread right away instead of doing it after the next hardware
interrupt arrived.
- Cleanup and improvements for the interrupt chip simulator
- Deduplication of the interrupt descriptor initialization code so the
sparse and non-sparse mode share more code.
- Drivers:
- A set of conversions to platform_drivers::remove_new() which gets rid
of the pointless return value.
- A new driver for the Starfive JH8100 SoC
- Support for Amlogic-T7 SoCs
- Improvement for the interrupt handling and EOI management for the
loongson interrupt controller.
- The usual fixes and improvements all over the place.
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Merge tag 'irq-core-2024-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"Core:
- Make affinity changes take effect immediately for interrupt
threads. This reduces the impact on isolated CPUs as it pulls over
the thread right away instead of doing it after the next hardware
interrupt arrived.
- Cleanup and improvements for the interrupt chip simulator
- Deduplication of the interrupt descriptor initialization code so
the sparse and non-sparse mode share more code.
Drivers:
- A set of conversions to platform_drivers::remove_new() which gets
rid of the pointless return value.
- A new driver for the Starfive JH8100 SoC
- Support for Amlogic-T7 SoCs
- Improvement for the interrupt handling and EOI management for the
loongson interrupt controller.
- The usual fixes and improvements all over the place"
* tag 'irq-core-2024-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
irqchip/ts4800: Convert to platform_driver::remove_new() callback
irqchip/stm32-exti: Convert to platform_driver::remove_new() callback
irqchip/renesas-rza1: Convert to platform_driver::remove_new() callback
irqchip/renesas-irqc: Convert to platform_driver::remove_new() callback
irqchip/renesas-intc-irqpin: Convert to platform_driver::remove_new() callback
irqchip/pruss-intc: Convert to platform_driver::remove_new() callback
irqchip/mvebu-pic: Convert to platform_driver::remove_new() callback
irqchip/madera: Convert to platform_driver::remove_new() callback
irqchip/ls-scfg-msi: Convert to platform_driver::remove_new() callback
irqchip/keystone: Convert to platform_driver::remove_new() callback
irqchip/imx-irqsteer: Convert to platform_driver::remove_new() callback
irqchip/imx-intmux: Convert to platform_driver::remove_new() callback
irqchip/imgpdc: Convert to platform_driver::remove_new() callback
irqchip: Add StarFive external interrupt controller
dt-bindings: interrupt-controller: Add starfive,jh8100-intc
arm64: dts: Add gpio_intc node for Amlogic-T7 SoCs
irqchip/meson-gpio: Add support for Amlogic-T7 SoCs
dt-bindings: interrupt-controller: Add support for Amlogic-T7 SoCs
irqchip/vic: Fix a kernel-doc warning
genirq: Wake interrupt threads immediately when changing affinity
...
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Merge tag 'vfs-6.9.ntfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull ntfs update from Christian Brauner:
"This removes the old ntfs driver. The new ntfs3 driver is a full
replacement that was merged over two years ago. We've went through
various userspace and either they use ntfs3 or they use the fuse
version of ntfs and thus build neither ntfs nor ntfs3. I think that's
a clear sign that we should risk removing the legacy ntfs driver.
Quoting from Arch Linux and Debian:
- Debian does neither build the legacy ntfs nor the new ntfs3:
"Not currently built with Debian's kernel packages, 'ntfs' has been
symlinked to 'ntfs-3g' as it relates to fstab and mount commands.
Debian kernels are built without support of the ntfs3 driver
developed by Paragon Software." (cf. [2])
- Archlinux provides ntfs3 as their default since 5.15:
"All officially supported kernels with versions 5.15 or newer are
built with CONFIG_NTFS3_FS=m and thus support it. Before 5.15,
NTFS read and write support is provided by the NTFS-3G FUSE file
system." (cf. [1]).
It's unmaintained apart from various odd fixes as well. Worst case we
have to reintroduce it if someone really has a valid dependency on it.
But it's worth trying to see whether we can remove it"
Link: https://wiki.archlinux.org/title/NTFS [1]
Link: https://wiki.debian.org/NTFS [2]
* tag 'vfs-6.9.ntfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: remove NTFS classic from docum. index
fs: Remove NTFS classic
This kselftest next update for Linux 6.9-rc1 consists of:
-- livepatch restructuring to move the module out of lib to be
built as a out-of-tree modules during kselftest build. This
change makes it easier change, debug and rebuild the tests by
running make on the selftests/livepatch directory, which is not
currently possible since the modules on lib/livepatch are build
and installed using the main makefile modules target.
-- livepatch restructuring fixes for problems found by kernel test
robot. The change skips the test if kernel-devel isn't installed
(default value of KDIR), or if KDIR variable passed doesn't exists.
-- resctrl test restructuring and new non-contiguous CBMs CAT test
-- new ktap_helpers to print diagnostic messages, pass/fail tests
based on exit code, abort test, and finish the test.
-- a new test verify power supply properties.
-- a new ftrace to exercise function tracer across cpu hotplug.
-- timeout increase for mqueue test to allow the test to run on
i3.metal AWS instances.
-- minor spelling corrections in several tests.
-- missing gitignore files and changes to existing gitignore files.
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Merge tag 'linux_kselftest-next-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest update from Shuah Khan:
- livepatch restructuring to move the module out of lib to be built as
a out-of-tree modules during kselftest build. This makes it easier
change, debug and rebuild the tests by running make on the
selftests/livepatch directory, which is not currently possible since
the modules on lib/livepatch are build and installed using the main
makefile modules target.
- livepatch restructuring fixes for problems found by kernel test
robot. The change skips the test if kernel-devel isn't installed
(default value of KDIR), or if KDIR variable passed doesn't exists.
- resctrl test restructuring and new non-contiguous CBMs CAT test
- new ktap_helpers to print diagnostic messages, pass/fail tests based
on exit code, abort test, and finish the test.
- a new test verify power supply properties.
- a new ftrace to exercise function tracer across cpu hotplug.
- timeout increase for mqueue test to allow the test to run on i3.metal
AWS instances.
- minor spelling corrections in several tests.
- missing gitignore files and changes to existing gitignore files.
* tag 'linux_kselftest-next-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (57 commits)
kselftest: Add basic test for probing the rust sample modules
selftests: lib.mk: Do not process TEST_GEN_MODS_DIR
selftests: livepatch: Avoid running the tests if kernel-devel is missing
selftests: livepatch: Add initial .gitignore
selftests/resctrl: Add non-contiguous CBMs CAT test
selftests/resctrl: Add resource_info_file_exists()
selftests/resctrl: Split validate_resctrl_feature_request()
selftests/resctrl: Add a helper for the non-contiguous test
selftests/resctrl: Add test groups and name L3 CAT test L3_CAT
selftests: sched: Fix spelling mistake "hiearchy" -> "hierarchy"
selftests/mqueue: Set timeout to 180 seconds
selftests/ftrace: Add test to exercize function tracer across cpu hotplug
selftest: ftrace: fix minor typo in log
selftests: thermal: intel: workload_hint: add missing gitignore
selftests: thermal: intel: power_floor: add missing gitignore
selftests: uevent: add missing gitignore
selftests: Add test to verify power supply properties
selftests: ktap_helpers: Add a helper to finish the test
selftests: ktap_helpers: Add a helper to abort the test
selftests: ktap_helpers: Add helper to pass/fail test based on exit code
...
This has been quite a small release, there's a lot of driver specific
cleanups and minor enhancements but hardly anything on the core and only
one new driver. Highlights include:
- SoundWire support for AMD ACP 6.3 systems.
- Support for reporting version information for AVS firmware.
- Support DSPless mode for Intel Soundwire systems.
- Support for configuring CS35L56 amplifiers using EFI calibration
data.
- Log which component is being operated on as part of power management
trace events.
- Support for Microchip SAM9x7, NXP i.MX95 and Qualcomm WCD939x
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Merge tag 'asoc-v6.9' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v6.9
This has been quite a small release, there's a lot of driver specific
cleanups and minor enhancements but hardly anything on the core and only
one new driver. Highlights include:
- SoundWire support for AMD ACP 6.3 systems.
- Support for reporting version information for AVS firmware.
- Support DSPless mode for Intel Soundwire systems.
- Support for configuring CS35L56 amplifiers using EFI calibration
data.
- Log which component is being operated on as part of power management
trace events.
- Support for Microchip SAM9x7, NXP i.MX95 and Qualcomm WCD939x
After contributing the driver, add myself as the maintainer for the
Freescale QMC HDLC driver.
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add Bharath for reviewing deferred close and leases
Acked-by: Bharath SM <bharathsm@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
MAINTAINERS
- update email address
core:
- fix polling in certain configurations
buddy:
- fix kunit test warning
panel:
- boe-tv101wum-nl6: timing tuning fixes
i915:
- Fix to extract HDCP information from primary connector
- Check for NULL mmu_interval_notifier before removing
- Fix for #10184: Kernel crash on UHD Graphics 730 (Cc stable)
- Fix for #10284: Boot delay regresion with PSR
- Fix DP connector DSC HW state readout
- Selftest fix to convert msecs to jiffies
xe:
- error path fix
amdgpu:
- SMU14 fix
- Fix possible NULL pointer
- VRR fix
- pwm fix
nouveau:
- fix deadlock in new ioctls fail path
- fix missing locking around object rbtree
udl:
- apply and revert format change
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Merge tag 'drm-fixes-2024-03-08' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Regular fixes (two weeks for i915), scattered across drivers, amdgpu
and i915 being the main ones, with nouveau having a couple of fixes.
One patch got applied for udl, but reverted soon after as the
maintainer has missed some crucial prior discussion.
Seems quiet and normal enough for this stage.
MAINTAINERS
- update email address
core:
- fix polling in certain configurations
buddy:
- fix kunit test warning
panel:
- boe-tv101wum-nl6: timing tuning fixes
i915:
- Fix to extract HDCP information from primary connector
- Check for NULL mmu_interval_notifier before removing
- Fix for #10184: Kernel crash on UHD Graphics 730 (Cc stable)
- Fix for #10284: Boot delay regresion with PSR
- Fix DP connector DSC HW state readout
- Selftest fix to convert msecs to jiffies
xe:
- error path fix
amdgpu:
- SMU14 fix
- Fix possible NULL pointer
- VRR fix
- pwm fix
nouveau:
- fix deadlock in new ioctls fail path
- fix missing locking around object rbtree
udl:
- apply and revert format change"
* tag 'drm-fixes-2024-03-08' of https://gitlab.freedesktop.org/drm/kernel: (21 commits)
nouveau: lock the client object tree.
drm/tests/buddy: fix print format
drm/xe: Return immediately on tile_init failure
drm/amdgpu/pm: Fix the error of pwm1_enable setting
drm/amd/display: handle range offsets in VRR ranges
drm/amd/display: check dc_link before dereferencing
drm/amd/swsmu: modify the gfx activity scaling
Revert "drm/udl: Add ARGB8888 as a format"
drm/i915/panelreplay: Move out psr_init_dpcd() from init_connector()
drm/i915/dp: Fix connector DSC HW state readout
drm/i915/selftests: Fix dependency of some timeouts on HZ
drm/udl: Add ARGB8888 as a format
drm/nouveau: fix stale locked mutex in nouveau_gem_ioctl_pushbuf
drm/i915: Don't explode when the dig port we don't have an AUX CH
MAINTAINERS: Update email address for Tvrtko Ursulin
drm/panel: boe-tv101wum-nl6: Fine tune Himax83102-j02 panel HFP and HBP (again)
drm: Fix output poll work for drm_kms_helper_poll=n
drm/i915: Check before removing mm notifier
drm/i915/hdcp: Extract hdcp structure from correct connector
drm/i915/hdcp: Remove additional timing for reading mst hdcp message
...
I have been no longer at Microchip for more than a year and I'm no
longer interested in maintaining these drivers. Let other mchp people
step up, thus remove myself. Thanks for the nice collaboration everyone!
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Acked-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Commit e8c0498505b0 ("dt-bindings: rtc: convert MT2717 RTC to the
json-schema") and commit aef3952ec13f ("dt-bindings: rtc: convert MT7622
RTC to the json-schema") convert rtc-mt{2712,7622}.txt to
mediatek,mt{2712,7622}-rtc.yaml, but misses to adjust the file entries in
MAINTAINERS.
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken reference.
Repair these file entries in ARM/Mediatek RTC DRIVER.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20240301145907.32732-1-lukas.bulwahn@gmail.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Jerrin will be the new maintainer of the VMware balloon driver following
Broadcom's acquisition and Nadav's departure.
Update accordingly:
1. Update the maintainer name and email.
2. Update the reviewer list to Broadcom's, which acquired VMware.
3. Add .mailmap entries for Nadav.
Cc: Jerrin Shaji George <jerrin.shaji-george@broadcom.com>
Signed-off-by: Nadav Amit <nadav.amit@gmail.com>
Acked-by: Jerrin Shaji George <jerrin.shaji-george@broadcom.com>
Link: https://lore.kernel.org/r/20240202182339.1725466-1-nadav.amit@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change the maintainer to Keng-Yu Lin as I am moving out of the project.
Signed-off-by: Matt Hsiao <matt.hsiao@hpe.com>
Acked-by: Keng-Yu Lin <keng-yu.lin@hpe.com>
Link: https://lore.kernel.org/r/20240221040307.23019-1-matt.hsiao@hpe.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
No solution yet for the stmmac issue mentioned in the last PR,
but it proved to be a lockdep false positive, not a blocker.
Current release - regressions:
- dpll: move all dpll<>netdev helpers to dpll code, fix build
regression with old compilers
Current release - new code bugs:
- page_pool: fix netlink dump stop/resume
Previous releases - regressions:
- bpf: fix verifier to check bpf_func_state->callback_depth when pruning
states as otherwise unsafe programs could get accepted
- ipv6: avoid possible UAF in ip6_route_mpath_notify()
- ice: reconfig host after changing MSI-X on VF
- mlx5:
- e-switch, change flow rule destination checking
- add a memory barrier to prevent a possible null-ptr-deref
- switch to using _bh variant of of spinlock where needed
Previous releases - always broken:
- netfilter: nf_conntrack_h323: add protection for bmp length out of range
- bpf: fix to zero-initialise xdp_rxq_info struct before running XDP
program in CPU map which led to random xdp_md fields
- xfrm: fix UDP encapsulation in TX packet offload
- netrom: fix data-races around sysctls
- ice:
- fix potential NULL pointer dereference in ice_bridge_setlink()
- fix uninitialized dplls mutex usage
- igc: avoid returning frame twice in XDP_REDIRECT
- i40e: disable NAPI right after disabling irqs when handling xsk_pool
- geneve: make sure to pull inner header in geneve_rx()
- sparx5: fix use after free inside sparx5_del_mact_entry
- dsa: microchip: fix register write order in ksz8_ind_write8()
Misc:
- selftests: mptcp: fixes for diag.sh
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.8-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from bpf, ipsec and netfilter.
No solution yet for the stmmac issue mentioned in the last PR, but it
proved to be a lockdep false positive, not a blocker.
Current release - regressions:
- dpll: move all dpll<>netdev helpers to dpll code, fix build
regression with old compilers
Current release - new code bugs:
- page_pool: fix netlink dump stop/resume
Previous releases - regressions:
- bpf: fix verifier to check bpf_func_state->callback_depth when
pruning states as otherwise unsafe programs could get accepted
- ipv6: avoid possible UAF in ip6_route_mpath_notify()
- ice: reconfig host after changing MSI-X on VF
- mlx5:
- e-switch, change flow rule destination checking
- add a memory barrier to prevent a possible null-ptr-deref
- switch to using _bh variant of of spinlock where needed
Previous releases - always broken:
- netfilter: nf_conntrack_h323: add protection for bmp length out of
range
- bpf: fix to zero-initialise xdp_rxq_info struct before running XDP
program in CPU map which led to random xdp_md fields
- xfrm: fix UDP encapsulation in TX packet offload
- netrom: fix data-races around sysctls
- ice:
- fix potential NULL pointer dereference in ice_bridge_setlink()
- fix uninitialized dplls mutex usage
- igc: avoid returning frame twice in XDP_REDIRECT
- i40e: disable NAPI right after disabling irqs when handling
xsk_pool
- geneve: make sure to pull inner header in geneve_rx()
- sparx5: fix use after free inside sparx5_del_mact_entry
- dsa: microchip: fix register write order in ksz8_ind_write8()
Misc:
- selftests: mptcp: fixes for diag.sh"
* tag 'net-6.8-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (63 commits)
net: pds_core: Fix possible double free in error handling path
netrom: Fix data-races around sysctl_net_busy_read
netrom: Fix a data-race around sysctl_netrom_link_fails_count
netrom: Fix a data-race around sysctl_netrom_routing_control
netrom: Fix a data-race around sysctl_netrom_transport_no_activity_timeout
netrom: Fix a data-race around sysctl_netrom_transport_requested_window_size
netrom: Fix a data-race around sysctl_netrom_transport_busy_delay
netrom: Fix a data-race around sysctl_netrom_transport_acknowledge_delay
netrom: Fix a data-race around sysctl_netrom_transport_maximum_tries
netrom: Fix a data-race around sysctl_netrom_transport_timeout
netrom: Fix data-races around sysctl_netrom_network_ttl_initialiser
netrom: Fix a data-race around sysctl_netrom_obsolescence_count_initialiser
netrom: Fix a data-race around sysctl_netrom_default_path_quality
netfilter: nf_conntrack_h323: Add protection for bmp length out of range
netfilter: nf_tables: mark set as dead when unbinding anonymous set with timeout
netfilter: nft_ct: fix l3num expectations with inet pseudo family
netfilter: nf_tables: reject constant set with timeout
netfilter: nf_tables: disallow anonymous set with timeout flag
net/rds: fix WARNING in rds_conn_connect_if_down
net: dsa: microchip: fix register write order in ksz8_ind_write8()
...
KTD2801 is a LED backlight driver IC found in samsung,coreprimevelte.
The brightness can be set using PWM or the ExpressWire protocol. Add
support for the KTD2801.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
Link: https://lore.kernel.org/r/20240125-ktd2801-v5-4-e22da232a825@skole.hr
Signed-off-by: Lee Jones <lee@kernel.org>
The ExpressWire protocol is shared between at least KTD2692 and KTD2801
with slight differences such as timings and the former not having a
defined set of pulses for enabling the protocol (possibly because it
does not support PWM unlike KTD2801). Despite these differences the
ExpressWire handling code can be shared between the two, so in
preparation for adding KTD2801 support introduce a library implementing
this protocol.
Suggested-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Duje Mihanović <duje.mihanovic@skole.hr>
Link: https://lore.kernel.org/r/20240125-ktd2801-v5-1-e22da232a825@skole.hr
Signed-off-by: Lee Jones <lee@kernel.org>
As discussed on the mailing list, Chester is stepping down from being
the primary maintainer for the s32c platform, and Ghennadi becomes an
additional reviewer.
For the moment, there is no full maintainer for s32c, but Shawn is already
listed as the overall maintainer for 32-bit freescale/nxp platforms
(except layerscape and qoriq) and agreed to merge s32c patches as they
come in and are reviewed by the remaining reviewers.
Adapt the entries in the maintainers file based on the discussion.
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Ghennadi Procopciuc <ghennadi.procopciuc@oss.nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Chester Lin <chester62515@gmail.com>
Cc: Matthias Brugger <mbrugger@suse.com>
Cc: Ghennadi Procopciuc <ghennadi.procopciuc@oss.nxp.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: NXP S32 Linux Team <s32@nxp.com>
Link: https://lore.kernel.org/all/20240221120123.1118552-1-ghennadi.procopciuc@oss.nxp.com/
Link: https://lore.kernel.org/r/20240304204249.936140-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Convert test-string_helpers.c to KUnit so it can be easily run with
everything else.
Failure reporting doesn't need to be open-coded in most places, for
example, forcing a failure in the expected output for upper/lower
testing looks like this:
[12:18:43] # test_upper_lower: EXPECTATION FAILED at lib/string_helpers_kunit.c:579
[12:18:43] Expected dst == strings_upper[i].out, but
[12:18:43] dst == "ABCDEFGH1234567890TEST"
[12:18:43] strings_upper[i].out == "ABCDEFGH1234567890TeST"
[12:18:43] [FAILED] test_upper_lower
Currently passes without problems:
$ ./tools/testing/kunit/kunit.py run string_helpers
...
[12:23:55] Starting KUnit Kernel (1/1)...
[12:23:55] ============================================================
[12:23:55] =============== string_helpers (3 subtests) ================
[12:23:55] [PASSED] test_get_size
[12:23:55] [PASSED] test_upper_lower
[12:23:55] [PASSED] test_unescape
[12:23:55] ================= [PASSED] string_helpers ==================
[12:23:55] ============================================================
[12:23:55] Testing complete. Ran 3 tests: passed: 3
[12:23:55] Elapsed time: 6.709s total, 0.001s configuring, 6.591s building, 0.066s running
Link: https://lore.kernel.org/r/20240301202732.2688342-2-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Convert test_string.c to KUnit so it can be easily run with everything
else.
Additional text context is retained for failure reporting. For example,
when forcing a bad match, we can see the loop counters reported for the
memset() tests:
[09:21:52] # test_memset64: ASSERTION FAILED at lib/string_kunit.c:93
[09:21:52] Expected v == 0xa2a1a1a1a1a1a1a1ULL, but
[09:21:52] v == -6799976246779207263 (0xa1a1a1a1a1a1a1a1)
[09:21:52] 0xa2a1a1a1a1a1a1a1ULL == -6727918652741279327 (0xa2a1a1a1a1a1a1a1)
[09:21:52] i:0 j:0 k:0
[09:21:52] [FAILED] test_memset64
Currently passes without problems:
$ ./tools/testing/kunit/kunit.py run string
...
[09:37:40] Starting KUnit Kernel (1/1)...
[09:37:40] ============================================================
[09:37:40] =================== string (6 subtests) ====================
[09:37:40] [PASSED] test_memset16
[09:37:40] [PASSED] test_memset32
[09:37:40] [PASSED] test_memset64
[09:37:40] [PASSED] test_strchr
[09:37:40] [PASSED] test_strnchr
[09:37:40] [PASSED] test_strspn
[09:37:40] ===================== [PASSED] string ======================
[09:37:40] ============================================================
[09:37:40] Testing complete. Ran 6 tests: passed: 6
[09:37:40] Elapsed time: 6.730s total, 0.001s configuring, 6.562s building, 0.131s running
Link: https://lore.kernel.org/r/20240301202732.2688342-1-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
I will lose access to my @.*intel.com e-mail addresses soon so let me
adjust the maintainers entry and update the mailmap too.
While at it consolidate a few other of my old emails to point to the
main one.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20240228142240.2539358-1-tvrtko.ursulin@linux.intel.com
Add new basic kselftest that checks if the available rust sample modules
can be added and removed correctly.
Signed-off-by: Laura Nao <laura.nao@collabora.com>
Reviewed-by: Sergio Gonzalez Collado <sergio.collado@gmail.com>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Enable support for the Sophgo SG2042 reset controller via reset-simple,
add a GPIO-based reset controller criver for shared GPIO resets, extract
an of_phandle_args_equal() helper function out of cpufreq, and use it in
reset-gpio.
Based on v6.8-rc5 because reset-gpio depends on commits in the
gpio-driver-h-stubs-for-v6.8-rc5 tag.
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Merge tag 'reset-for-v6.9' of git://git.pengutronix.de/pza/linux into soc/late
Reset controller updates for v6.9
Enable support for the Sophgo SG2042 reset controller via reset-simple,
add a GPIO-based reset controller criver for shared GPIO resets, extract
an of_phandle_args_equal() helper function out of cpufreq, and use it in
reset-gpio.
Based on v6.8-rc5 because reset-gpio depends on commits in the
gpio-driver-h-stubs-for-v6.8-rc5 tag.
* tag 'reset-for-v6.9' of git://git.pengutronix.de/pza/linux:
reset: Instantiate reset GPIO controller for shared reset-gpios
reset: gpio: Add GPIO-based reset controller
cpufreq: do not open-code of_phandle_args_equal()
of: Add of_phandle_args_equal() helper
reset: simple: add support for Sophgo SG2042
dt-bindings: reset: sophgo: support SG2042
Link: https://lore.kernel.org/r/20240301111300.4038207-1-p.zabel@pengutronix.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1. Extend Exynos PMU (Power Management Unit) driver being also the
syscon to main system controller registers block, to support Google
GS101. The Google GS101 has PMU registers protected and writing is
available only via SMC. The Exynos PMU will register its own custom
regmap for such case of mixed MMIO+SMC.
2. Rework Samsung watchdog driver to get the regmap to PMU block not
via syscon API, but from the Exynos PMU driver. This is necessary
for the watchdog driver to work on Google GS101.
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Merge tag 'samsung-drivers-6.9-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into soc/drivers
Samsung SoC driver changes for v6.9, part two
1. Extend Exynos PMU (Power Management Unit) driver being also the
syscon to main system controller registers block, to support Google
GS101. The Google GS101 has PMU registers protected and writing is
available only via SMC. The Exynos PMU will register its own custom
regmap for such case of mixed MMIO+SMC.
2. Rework Samsung watchdog driver to get the regmap to PMU block not
via syscon API, but from the Exynos PMU driver. This is necessary
for the watchdog driver to work on Google GS101.
* tag 'samsung-drivers-6.9-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
watchdog: s3c2410_wdt: use exynos_get_pmu_regmap_by_phandle() for PMU regs
soc: samsung: exynos-pmu: Add regmap support for SoCs that protect PMU regs
MAINTAINERS: samsung: gs101: match patches touching Google Tensor SoC
Link: https://lore.kernel.org/r/20240227080755.34170-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Quite a few changes to extend support to SCMI v3.2 specification,
to enhance notification handling and other miscellaneous updates.
1. Enhancements to notification handling
Until now, trying to register a notifier for an unsuppported
notification returned an error genrating unneeded message exchanges
with the SCMI platform. This can be avoided by looking up in advance
the specific protocol and resources available.
With these changes SCMI driver user will fail to register a notifier
if the related command or resource is not supported (like before)
without the need of exchanging any message.
Perf notifications are also extended to provide the pre-calculated
frequencies corresponding to the level or index carried by the
2. More SCMI v3.2 related updates
One of the main addition includes a centralized support to the SCMI
core to handle v3.2 optional protocol version negotiation, so that
at protocol initialization time, if the platform advertised version
is newer than supported by the kernel and protocol version negotiation
is supported, the SCMI core will attempt to negotiate an older protocol
version.
It also includes the clock get permissions which indicates if any of
the clock operations are forbidden by the platform for the OSPM agent.
It can be used in the clock driver to avoid unnecessary message
exchanges between the kernel and the platform which will always end
up with the failure. It also includes other missing bits of clock
v3.2 protocol so that the supported protocol version can be bumped
to 0x30000 (v3.2).
3. Miscellaneous updates
This includes addition of warning if the domain frequency multiplier
is 0 or rounded off to indicate the actual frequencies are either
wrong ot rounded off, hardening of clock domain info lookups, addition
of multiple protocols registration support within a SCMI driver,
update to SCMI entry in MAINTAINERS to include HWMON driver and
constifying the scmi_bus_type structure.
This also includes couple for fixes to minor issues: double free in
SMC transport cleanup path and struct kernel-doc warnings in optee
transport.
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Merge tag 'scmi-updates-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers
Arm SCMI updates for v6.9
Quite a few changes to extend support to SCMI v3.2 specification,
to enhance notification handling and other miscellaneous updates.
1. Enhancements to notification handling
Until now, trying to register a notifier for an unsuppported
notification returned an error genrating unneeded message exchanges
with the SCMI platform. This can be avoided by looking up in advance
the specific protocol and resources available.
With these changes SCMI driver user will fail to register a notifier
if the related command or resource is not supported (like before)
without the need of exchanging any message.
Perf notifications are also extended to provide the pre-calculated
frequencies corresponding to the level or index carried by the
2. More SCMI v3.2 related updates
One of the main addition includes a centralized support to the SCMI
core to handle v3.2 optional protocol version negotiation, so that
at protocol initialization time, if the platform advertised version
is newer than supported by the kernel and protocol version negotiation
is supported, the SCMI core will attempt to negotiate an older protocol
version.
It also includes the clock get permissions which indicates if any of
the clock operations are forbidden by the platform for the OSPM agent.
It can be used in the clock driver to avoid unnecessary message
exchanges between the kernel and the platform which will always end
up with the failure. It also includes other missing bits of clock
v3.2 protocol so that the supported protocol version can be bumped
to 0x30000 (v3.2).
3. Miscellaneous updates
This includes addition of warning if the domain frequency multiplier
is 0 or rounded off to indicate the actual frequencies are either
wrong ot rounded off, hardening of clock domain info lookups, addition
of multiple protocols registration support within a SCMI driver,
update to SCMI entry in MAINTAINERS to include HWMON driver and
constifying the scmi_bus_type structure.
This also includes couple for fixes to minor issues: double free in
SMC transport cleanup path and struct kernel-doc warnings in optee
transport.
* tag 'scmi-updates-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux: (29 commits)
MAINTAINERS: Update SCMI entry with HWMON driver
firmware: arm_scmi: Update the supported clock protocol version
firmware: arm_scmi: Add standard clock OEM definitions
firmware: arm_scmi: Add clock check for extended config support
firmware: arm_scmi: Add support for v3.2 NEGOTIATE_PROTOCOL_VERSION
firmware: arm_scmi: Fix struct kernel-doc warnings in optee transport
firmware: arm_scmi: Report frequencies in the perf notifications
firmware: arm_scmi: Use opps_by_lvl to store opps
firmware: arm_scmi: Implement is_notify_supported callback in powercap protocol
firmware: arm_scmi: Implement is_notify_supported callback in reset protocol
firmware: arm_scmi: Implement is_notify_supported callback in sensor protocol
firmware: arm_scmi: Implement is_notify_supported callback in clock protocol
firmware: arm_scmi: Implement is_notify_supported callback in system power protocol
firmware: arm_scmi: Implement is_notify_supported callback in power protocol
firmware: arm_scmi: Implement is_notify_supported callback in perf protocol
firmware: arm_scmi: Add a common helper to check if a message is supported
firmware: arm_scmi: Check for notification support
firmware: arm_scmi: Make scmi_bus_type const
firmware: arm_scmi: Fix double free in SMC transport cleanup path
firmware: arm_scmi: Implement clock get permissions
...
Link: https://lore.kernel.org/r/20240223033435.118028-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- Update MAINTAINERS to use a public mailing list for NXP i.MX
development.
- Re-enable CONFIG_BACKLIGHT_CLASS_DEVICE in imx_v6_v7_defconfig to fix
a backlight regression.
- Remove DSI port endpoints from i.MX7 SoC DTSI to fix a display
regression.
- Fix LDB clocks property for i.MX8MP device tree.
- Fix TC9595 reset GPIO on DH i.MX8M Plus DHCOM SoM.
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Merge tag 'imx-fixes-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 6.8, round 2:
- Update MAINTAINERS to use a public mailing list for NXP i.MX
development.
- Re-enable CONFIG_BACKLIGHT_CLASS_DEVICE in imx_v6_v7_defconfig to fix
a backlight regression.
- Remove DSI port endpoints from i.MX7 SoC DTSI to fix a display
regression.
- Fix LDB clocks property for i.MX8MP device tree.
- Fix TC9595 reset GPIO on DH i.MX8M Plus DHCOM SoM.
* tag 'imx-fixes-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
arm64: dts: imx8mp: Fix LDB clocks property
arm64: dts: imx8mp: Fix TC9595 reset GPIO on DH i.MX8M Plus DHCOM SoM
MAINTAINERS: Use a proper mailinglist for NXP i.MX development
ARM: dts: imx7: remove DSI port endpoints
ARM: imx_v6_v7_defconfig: Restore CONFIG_BACKLIGHT_CLASS_DEVICE
Link: https://lore.kernel.org/r/ZdtPJzdenRybI+Bq@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Commit f34158edd249 ("MAINTAINERS: Add entry for Mobileye MIPS SoCs") adds
the section MOBILEYE MIPS SOCS with a file entry to the non-existing file
include/dt-bindings/soc/mobileye,eyeq5.h.
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken reference.
Possibly, this file was part of an early patch series, but in the final
patch series, this file does not appear anymore.
Delete this file entry in the MOBILEYE MIPS SOCS section.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Add a second document on bisecting regressions explaining the whole
process from beginning to end -- while also describing how to validate
if a problem is still present in mainline. This "two in one" approach
is possible, as checking whenever a bug is in mainline is one of the
first steps before performing a bisection anyway and thus needs to be
described. Due to this approach the text also works quite nicely in
conjunction with Documentation/admin-guide/reporting-issues.rst, as it
covers all typical cases where users will need to build a kernel in
exactly the same order.
The text targets users that normally run kernels from their Linux
distributor who might never have compiled their own kernel.
This aim is why the first kernel built while following this guide is
generated from the latest mainline codebase. This will rule out that the
regression (a) was fixed already and (b) is caused by config change a
vendor distributor performed; checking mainline will furthermore (c)
determine if the issue is something that needs to be reported to the
regular developers or the stable team (this is needed even when readers
bisect within a stable series).
Only then are readers instructed to build their own variant of the
'good' kernel to validate the trimmed .config file created during early
in the guide, as performing a bisection with a broken one would be a
waste of time. There is a small downside of this order: readers might
have to go back to testing mainline, if it turns out there is a problem
with their .config. But that should be rare -- and if the regression was
already fixed readers might not get to this point anyway. Hence in the
end this order should mean that readers built less kernels overall.
This sequence allows the text to easily cover the "check if a bug is
present in the upstream kernel" case while only making things a tiny bit
more complicated.
The text tries to prevent readers from running into many mistakes users
are known to frequently make. The steps required for this might look
superfluous for people that are already familiar with bisections -- but
anyone with that knowledge should be able to adapt the instructions to
their use-case or will not need this text at all.
Style and structure of the text match the one
Documentation/admin-guide/quickly-build-trimmed-linux.rst uses. Quite a
few paragraphs are even copied from there and not changed at all or only
slightly. This will complicate maintenance, as some future changes to
one of these documents will have to be replicated in the other. But this
is the lesser evil: solutions like "sending readers from one document
over to the other" or "extracting the common parts into a separate
document" might work in other cases, but would be too confusing here
given the topic and the target audience.
Signed-off-by: Thorsten Leemhuis <linux@leemhuis.info>
[jc: Undo spurious removal of subsection header line]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <02b084a06de4ad61ac4ecd92b9265d4df4d03d71.1709282441.git.linux@leemhuis.info>
Everything in i2c.txt is covered by schemas/i2c/i2c-controller.yaml in
dtschema project, so remove i2c.txt and update links to it in the tree.
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240222174343.3482354-2-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
* A fix for detecting ".option arch" support on not-yet-released LLVM
builds.
* A fix for a missing TLB flush when modifying non-leaf PTEs.
* A handufl of fixes for T-Head custom extensions.
* A fix for systems with the legacy PMU, that manifests as a crash on
kernels built without SBI PMU support.
* A fix for systems that clear *envcfg on suspend, which manifests as
cbo.zero trapping after resume.
* A pair of fixes for Svnapot systems, including removing Svnapot
support for huge vmalloc/vmap regions.
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Merge tag 'riscv-for-linus-6.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- detect ".option arch" support on not-yet-released LLVM builds
- fix missing TLB flush when modifying non-leaf PTEs
- fixes for T-Head custom extensions
- fix for systems with the legacy PMU, that manifests as a crash on
kernels built without SBI PMU support
- fix for systems that clear *envcfg on suspend, which manifests as
cbo.zero trapping after resume
- fixes for Svnapot systems, including removing Svnapot support for
huge vmalloc/vmap regions
* tag 'riscv-for-linus-6.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Sparse-Memory/vmemmap out-of-bounds fix
riscv: Fix pte_leaf_size() for NAPOT
Revert "riscv: mm: support Svnapot in huge vmap"
riscv: Save/restore envcfg CSR during CPU suspend
riscv: Add a custom ISA extension for the [ms]envcfg CSR
riscv: Fix enabling cbo.zero when running in M-mode
perf: RISCV: Fix panic on pmu overflow handler
MAINTAINERS: Update SiFive driver maintainers
drivers: perf: ctr_get_width function for legacy is not defined
drivers: perf: added capabilities for legacy PMU
RISC-V: Ignore V from the riscv,isa DT property on older T-Head CPUs
riscv: Fix build error if !CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION
riscv: mm: fix NOCACHE_THEAD does not set bit[61] correctly
riscv: add CALLER_ADDRx support
RISC-V: Drop invalid test from CONFIG_AS_HAS_OPTION_ARCH
kbuild: Add -Wa,--fatal-warnings to as-instr invocation
riscv: tlb: fix __p*d_free_tlb()
Alex helps co-maintain the DLM code and did some recent work to fix up
how lockd and GFS2 work together. Add him as a Reviewer for file locking
changes.
Acked-by: Alexander Aring <aahringo@redhat.com>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
With the Imagination Rogue GPU binding added, let's also add the devicetree
binding for earlier SGX GPUs. Let's also patch the TI SoCs for the related
SGX GPU nodes.
Based on the mailing list discussions, the conclusion was that we need two
separate device tree bindings, one for Rogue and upcoming GPUS, and one for
the older SGX GPUs.
For merging the changes, I applied the binding changes together with the
TI SoC related changes into a branch leaving out the sun6i and mips changes
as suggested by Rob.
These changes are mostly 32-bit SoCs, but also contains one arm64 change.
It does not cause any merge conflicts.
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Merge tag 'sgx-for-v6.9-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into soc/dt
Add PowerVR Series5 SGX GPUs for the TI SoCs
With the Imagination Rogue GPU binding added, let's also add the devicetree
binding for earlier SGX GPUs. Let's also patch the TI SoCs for the related
SGX GPU nodes.
Based on the mailing list discussions, the conclusion was that we need two
separate device tree bindings, one for Rogue and upcoming GPUS, and one for
the older SGX GPUs.
For merging the changes, I applied the binding changes together with the
TI SoC related changes into a branch leaving out the sun6i and mips changes
as suggested by Rob.
These changes are mostly 32-bit SoCs, but also contains one arm64 change.
It does not cause any merge conflicts.
* tag 'sgx-for-v6.9-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
arm64: dts: ti: k3-am654-main: Add device tree entry for SGX GPU
ARM: dts: DRA7xx: Add device tree entry for SGX GPU
ARM: dts: AM437x: Add device tree entry for SGX GPU
ARM: dts: AM33xx: Add device tree entry for SGX GPU
ARM: dts: omap5: Add device tree entry for SGX GPU
ARM: dts: omap4: Add device tree entry for SGX GPU
ARM: dts: omap3: Add device tree entry for SGX GPU
dt-bindings: gpu: Add PowerVR Series5 SGX GPUs
dt-bindings: gpu: Rename img,powervr to img,powervr-rogue
Link: https://lore.kernel.org/r/pull-1708943489-872615@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Add myself as co-maintainer for Socionext netsec driver.
This commit also removes Jassi from maintainer since he
no longer has a Developerbox.
Cc: Jassi Brar <jaswinder.singh@linaro.org>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Masahisa Kojima <kojima.masahisa@socionext.com>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tobin hasn't been involved lately, and I can step up to be a reviewer
with Tycho. I'll carry changes via the hardening tree.
Reviewed-by: Tycho Andersen <tandersen@netflix.com>
Link: https://lore.kernel.org/r/20240222220053.1475824-1-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Add rules for finding places where str_plural() can be used. This
currently finds:
54 files changed, 62 insertions(+), 61 deletions(-)
Co-developed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Link: https://lore.kernel.org/all/fc1b25a8-6381-47c2-831c-ab6b8201a82b@intel.com/
Signed-off-by: Kees Cook <keescook@chromium.org>
We have one outstanding issue with the stmmac driver, which may
be a LOCKDEP false positive, not a blocker.
Current release - regressions:
- netfilter: nf_tables: re-allow NFPROTO_INET in
nft_(match/target)_validate()
- eth: ionic: fix error handling in PCI reset code
Current release - new code bugs:
- eth: stmmac: complete meta data only when enabled, fix null-deref
- kunit: fix again checksum tests on big endian CPUs
Previous releases - regressions:
- veth: try harder when allocating queue memory
- Bluetooth:
- hci_bcm4377: do not mark valid bd_addr as invalid
- hci_event: fix handling of HCI_EV_IO_CAPA_REQUEST
Previous releases - always broken:
- info leak in __skb_datagram_iter() on netlink socket
- mptcp:
- map v4 address to v6 when destroying subflow
- fix potential wake-up event loss due to sndbuf auto-tuning
- fix double-free on socket dismantle
- wifi: nl80211: reject iftype change with mesh ID change
- fix small out-of-bound read when validating netlink be16/32 types
- rtnetlink: fix error logic of IFLA_BRIDGE_FLAGS writing back
- ipv6: fix potential "struct net" ref-leak in inet6_rtm_getaddr()
- ip_tunnel: prevent perpetual headroom growth with huge number of
tunnels on top of each other
- mctp: fix skb leaks on error paths of mctp_local_output()
- eth: ice: fixes for DPLL state reporting
- dpll: rely on rcu for netdev_dpll_pin() to prevent UaF
- eth: dpaa: accept phy-interface-type = "10gbase-r" in the device tree
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bluetooth, WiFi and netfilter.
We have one outstanding issue with the stmmac driver, which may be a
LOCKDEP false positive, not a blocker.
Current release - regressions:
- netfilter: nf_tables: re-allow NFPROTO_INET in
nft_(match/target)_validate()
- eth: ionic: fix error handling in PCI reset code
Current release - new code bugs:
- eth: stmmac: complete meta data only when enabled, fix null-deref
- kunit: fix again checksum tests on big endian CPUs
Previous releases - regressions:
- veth: try harder when allocating queue memory
- Bluetooth:
- hci_bcm4377: do not mark valid bd_addr as invalid
- hci_event: fix handling of HCI_EV_IO_CAPA_REQUEST
Previous releases - always broken:
- info leak in __skb_datagram_iter() on netlink socket
- mptcp:
- map v4 address to v6 when destroying subflow
- fix potential wake-up event loss due to sndbuf auto-tuning
- fix double-free on socket dismantle
- wifi: nl80211: reject iftype change with mesh ID change
- fix small out-of-bound read when validating netlink be16/32 types
- rtnetlink: fix error logic of IFLA_BRIDGE_FLAGS writing back
- ipv6: fix potential "struct net" ref-leak in inet6_rtm_getaddr()
- ip_tunnel: prevent perpetual headroom growth with huge number of
tunnels on top of each other
- mctp: fix skb leaks on error paths of mctp_local_output()
- eth: ice: fixes for DPLL state reporting
- dpll: rely on rcu for netdev_dpll_pin() to prevent UaF
- eth: dpaa: accept phy-interface-type = '10gbase-r' in the device
tree"
* tag 'net-6.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (73 commits)
dpll: fix build failure due to rcu_dereference_check() on unknown type
kunit: Fix again checksum tests on big endian CPUs
tls: fix use-after-free on failed backlog decryption
tls: separate no-async decryption request handling from async
tls: fix peeking with sync+async decryption
tls: decrement decrypt_pending if no async completion will be called
gtp: fix use-after-free and null-ptr-deref in gtp_newlink()
net: hsr: Use correct offset for HSR TLV values in supervisory HSR frames
igb: extend PTP timestamp adjustments to i211
rtnetlink: fix error logic of IFLA_BRIDGE_FLAGS writing back
tools: ynl: fix handling of multiple mcast groups
selftests: netfilter: add bridge conntrack + multicast test case
netfilter: bridge: confirm multicast packets before passing them up the stack
netfilter: nf_tables: allow NFPROTO_INET in nft_(match/target)_validate()
Bluetooth: qca: Fix triggering coredump implementation
Bluetooth: hci_qca: Set BDA quirk bit if fwnode exists in DT
Bluetooth: qca: Fix wrong event type for patch config command
Bluetooth: Enforce validation on max value of connection interval
Bluetooth: hci_event: Fix handling of HCI_EV_IO_CAPA_REQUEST
Bluetooth: mgmt: Fix limited discoverable off timeout
...
Add myself as a maintainer for the various SiFive drivers, since I have
been performing cleanup activity on these drivers and reviewing patches
to them for a while now. Remove Palmer as a maintainer, as he is focused
on overall RISC-V architecture support.
Collapse some duplicate entries into the main SiFive drivers entry:
- Conor is already maintainer of standalone cache drivers as a whole,
and these files are also covered by the "sifive" file name regex.
- Paul's git tree has not been updated since 2018, and all file names
matching the "fu540" pattern also match the "sifive" pattern.
- Green has not been active on the LKML for a couple of years.
Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Acked-by: Paul Walmsley <paul.walmsley@sifive.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Link: https://lore.kernel.org/r/20240215234941.1663791-1-samuel.holland@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Previously, drivers/pinctrl/nomadik/pinctrl-nomadik.c registered two
platform drivers: pinctrl & GPIO. Move the GPIO aspect to the
drivers/gpio/ folder, as would be expected.
Both drivers are intertwined for a reason; pinctrl requires access to
GPIO registers for pinmuxing, pull-disable, disabling interrupts while
setting the muxing and wakeup control. Information sharing is done
through a shared array containing GPIO chips and a few helper
functions. That shared array is not touched from gpio-nomadik when
CONFIG_PINCTRL_NOMADIK is not defined.
Make no change to the code that moved into gpio-nomadik; there should be
no behavior change following. A few functions are shared and header
comments are added. Checkpatch warnings are addressed. NUM_BANKS is
renamed to NMK_MAX_BANKS.
It is supported to compile gpio-nomadik without pinctrl-nomadik. The
opposite is not true.
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-6-3ba757474006@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Create gpio/st,nomadik-gpio.yaml json-schema dt-bindings file as a
direct translation from gpio-nmk.txt. Remove the txt file.
Add clocks and gpio-ranges properties which were missing and are being
used in Nomadik devicetrees.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-1-3ba757474006@bootlin.com
[Dropped an unused label]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
As I am submitting the driver and have the device to test. I'll maintain
the driver.
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Link: https://lore.kernel.org/r/20240222011341.3232645-5-megi@xff.cz
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Two small fixes, one small update for the max5970 driver bringing the
driver and DT binding documentation into sync plus a missed update to
the patterns in MAINTAINERS after a DT binding YAML conversion.
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Merge tag 'regulator-fix-v6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator fixes from Mark Brown:
"Two small fixes, one small update for the max5970 driver bringing the
driver and DT binding documentation into sync plus a missed update to
the patterns in MAINTAINERS after a DT binding YAML conversion"
* tag 'regulator-fix-v6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: max5970: Fix regulator child node name
MAINTAINERS: repair entry for MICROCHIP MCP16502 PMIC DRIVER
Few remaining fixes, hopefully the last wireless pull request to v6.8. Two
fixes to the stack and two to iwlwifi but no high priority fixes this
time.
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Merge tag 'wireless-2024-02-27' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Kalle Valo says:
====================
wireless fixes for v6.8-rc7
Few remaining fixes, hopefully the last wireless pull request to v6.8.
Two fixes to the stack and two to iwlwifi but no high priority fixes
this time.
* tag 'wireless-2024-02-27' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
wifi: mac80211: only call drv_sta_rc_update for uploaded stations
MAINTAINERS: wifi: Add N: ath1*k entries to match .yaml files
MAINTAINERS: wifi: update Jeff Johnson e-mail address
wifi: iwlwifi: mvm: fix the TXF mapping for BZ devices
wifi: iwlwifi: mvm: ensure offloading TID queue exists
wifi: nl80211: reject iftype change with mesh ID change
====================
Link: https://lore.kernel.org/r/20240227135751.C5EC6C43390@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linus Torvalds
Takashi Iwai
Herve Codina
Steve French
Kent Overstreet
Tudor Ambarus
Lukas Bulwahn
Joerg Roedel
Nadav Amit
Matt Hsiao
Praveen Teja Kundanala
Jakub Kicinski
Duje Mihanović
Bartosz Golaszewski
Arnd Bergmann
Kees Cook
Tvrtko Ursulin
Laura Nao
Ji Sheng Teoh
Thorsten Leemhuis
Rob Herring
Jeff Layton
Masahisa Kojima
Samuel Holland
Théo Lebrun
Ondrej Jirman
Marius Cristea