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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull runtime verification updates from Steven Rostedt:
- Added Linear temporal logic monitors for RT application
Real-time applications may have design flaws causing them to have
unexpected latency. For example, the applications may raise page
faults, or may be blocked trying to take a mutex without priority
inheritance.
However, while attempting to implement DA monitors for these
real-time rules, deterministic automaton is found to be inappropriate
as the specification language. The automaton is complicated, hard to
understand, and error-prone.
For these cases, linear temporal logic is found to be more suitable.
The LTL is more concise and intuitive.
- Make printk_deferred() public
The new monitors needed access to printk_deferred(). Make them
visible for the entire kernel.
- Add a vpanic() to allow for va_list to be passed to panic.
- Add rtapp container monitor.
A collection of monitors that check for common problems with
real-time applications that cause unexpected latency.
- Add page fault tracepoints to risc-v
These tracepoints are necessary to for the RV monitor to run on
risc-v.
- Fix the behaviour of the rv tool with -s and idle tasks.
- Allow the rv tool to gracefully terminate with SIGTERM
- Adjusts dot2c not to create lines over 100 columns
- Properly order nested monitors in the RV Kconfig file
- Return the registration error in all DA monitor instead of 0
- Update and add new sched collection monitors
Replace tss and sncid monitors with more complete sts:
Not only prove that switches occur in scheduling context and scheduling
needs interrupt disabled but also that each call to the scheduler
disables interrupts to (optionally) switch.
New monitor: nrp
Preemption requires need resched which is cleared by any switch
(includes a non optimal workaround for /nested/ preemptions)
New monitor: sssw
suspension requires setting the task to sleepable and, after the
switch occurs, the task requires a wakeup to come back to runnable
New monitor: opid
waking and need-resched operations occur with interrupts and
preemption disabled or in IRQ without explicitly disabling
preemption"
* tag 'trace-rv-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (48 commits)
rv: Add opid per-cpu monitor
rv: Add nrp and sssw per-task monitors
rv: Replace tss and sncid monitors with more complete sts
sched: Adapt sched tracepoints for RV task model
rv: Retry when da monitor detects race conditions
rv: Adjust monitor dependencies
rv: Use strings in da monitors tracepoints
rv: Remove trailing whitespace from tracepoint string
rv: Add da_handle_start_run_event_ to per-task monitors
rv: Fix wrong type cast in reactors_show() and monitor_reactor_show()
rv: Fix wrong type cast in monitors_show()
rv: Remove struct rv_monitor::reacting
rv: Remove rv_reactor's reference counter
rv: Merge struct rv_reactor_def into struct rv_reactor
rv: Merge struct rv_monitor_def into struct rv_monitor
rv: Remove unused field in struct rv_monitor_def
rv: Return init error when registering monitors
verification/rvgen: Organise Kconfig entries for nested monitors
tools/dot2c: Fix generated files going over 100 column limit
tools/rv: Stop gracefully also on SIGTERM
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull ring-buffer updates from Steven Rostedt:
- Rewind persistent ring buffer on boot
When the persistent ring buffer is being used for live kernel tracing
and the system crashes, the tool that is reading the trace may not
have recorded the data when the system crashed.
Although the persistent ring buffer still has that data, when reading
it after a reboot, it will start where it left off. That is, what was
read will not be accessible.
Instead, on reboot, have the persistent ring buffer restart where the
data starts and this will allow the tooling to recover what was lost
when the crash occurred.
- Remove the ring_buffer_read_prepare_sync() logic
Reading the trace file required stopping writing to the ring buffer
as the trace file is only an iterator and does not consume what it
read. It was originally not safe to read the ring buffer in this mode
and required disabling writing. The ring_buffer_read_prepare_sync()
logic was used to stop each per_cpu ring buffer, call
synchronize_rcu() and then start the iterator. This was used instead
of calling synchronize_rcu() for each per_cpu buffer.
Today, the iterator has been updated where it is safe to read the
trace file while writing to the ring buffer is still occurring. There
is no more need to do this synchronization and it is causing large
delays on machines with many CPUs. Remove this unneeded
synchronization.
- Make static string array a constant in show_irq_str()
Making the string array into a constant has shown to decrease code
text/data size.
* tag 'trace-ringbuffer-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
ring-buffer: Make the const read-only 'type' static
ring-buffer: Remove ring_buffer_read_prepare_sync()
tracing: ring_buffer: Rewind persistent ring buffer on reboot
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull ftrace updates from Steven Rostedt:
- Keep track of when fgraph_ops are registered or not
Keep accounting of when fgraph_ops are registered as if a fgraph_ops
is registered twice it can mess up the accounting and it will not
work as expected later. Trigger a warning if something registers it
twice as to catch bugs before they are found by things just not
working as expected.
- Make DYNAMIC_FTRACE always enabled for architectures that support it
As static ftrace (where all functions are always traced) is very
expensive and only exists to help architectures support ftrace, do
not make it an option. As soon as an architecture supports
DYNAMIC_FTRACE make it use it. This simplifies the code.
- Remove redundant config HAVE_FTRACE_MCOUNT_RECORD
The CONFIG_HAVE_FTRACE_MCOUNT was added to help simplify the
DYNAMIC_FTRACE work, but now every architecture that implements
DYNAMIC_FTRACE also has HAVE_FTRACE_MCOUNT set too, making it
redundant with the HAVE_DYNAMIC_FTRACE.
- Make pid_ptr string size match the comment
In print_graph_proc() the pid_ptr string is of size 11, but the
comment says /* sign + log10(MAX_INT) + '\0' */ which is actually 12.
* tag 'ftrace-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Remove redundant config HAVE_FTRACE_MCOUNT_RECORD
ftrace: Make DYNAMIC_FTRACE always enabled for architectures that support it
fgraph: Keep track of when fgraph_ops are registered or not
fgraph: Make pid_str size match the comment
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest
Pull ktest updates from Steven Rostedt:
- Add new -D option that allows to override variables and options
For example:
./ktest.pl -DPATCH_START:=HEAD~1 -DOUTPUT_DIR=/work/build/urgent config
The above sets the variable "PATCH_START" to HEAD~1 and the
OUTPUT_DIR option to "/work/build/urgent".
This is useful because currently the only way to make a slight change
to a config file is by modifying that config file. For one time
changes, this can be annoying. Having a way to do a one time override
from the command line simplifies the workflow.
Temp variables (PATCH_START) will override every temp variable in the
config file, whereas options will act like a normal OVERRIDE option
and will only affect the session they define.
-DBUILD_OUTPUT=/work/git/linux.git
Replaces the default BUILD_OUTPUT option.
'-DBUILD_OUTPUT[2]=/work/git/linux.git'
Only replaces the BUILD_OUTPUT variable for test #2.
- If an option contains itself, just drop it instead of going into an
infinite loop and failing to parse (it doesn't crash, it detects the
recursion after 100 iterations anyway).
Some configs may define a variable with the same name as the option:
ADD_CONFIG := $(ADD_CONFIG)
But if the option doesn't exist, it the above will fail to parse. In
these cases, just ignore evaluating the option inside the definition
of another option if it has the same name.
- Display the BUILD_DIR and OUTPUT_DIR options at the start of every
test
It is useful to know which kernel source and what destination a test
is using when it starts, in case a mistake is made. This makes it
easier to abort the test if the wrong source or destination is being
used instead of waiting until the test completes.
- Add new PATCHCHECK_SKIP option
When testing a series of commits that also includes changes to the
Linux tools directory, it is useless to test the changes in tools as
they may not affect the kernel itself. Doing tests on the kernel for
changes that do not affect the kernel is a waste of time.
Add a PATCHCHECK_SKIP that takes a series of shas that will be
skipped while doing the individual commit tests.
* tag 'ktest-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
ktest.pl: Add new PATCHCHECK_SKIP option to skip testing individual commits
ktest.pl: Always display BUILD_DIR and OUTPUT_DIR at the start of tests
ktest.pl: Prevent recursion of default variable options
ktest.pl: Have -D option work without a space
ktest.pl: Allow command option -D to override temp variables
ktest.pl: Add -D option to override options
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes updates from Masami Hiramatsu:
"Stack usage reduction for probe events:
- Allocate string buffers from the heap for uprobe, eprobe, kprobe,
and fprobe events to avoid stack overflow
- Allocate traceprobe_parse_context from the heap to prevent
potential stack overflow
- Fix a typo in the above commit
New features for eprobe and tprobe events:
- Add support for arrays in eprobes
- Support multiple tprobes on the same tracepoint
Improve efficiency:
- Register fprobe-events only when it is enabled to reduce overhead
- Register tracepoints for tprobe events only when enabled to resolve
a lock dependency
Code Cleanup:
- Add kerneldoc for traceprobe_parse_event_name() and
__get_insn_slot()
- Sort #include alphabetically in the probes code
- Remove the unused 'mod' field from the tprobe-event
- Clean up the entry-arg storing code in probe-events
Selftest update
- Enable fprobe events before checking enable_functions in selftests"
* tag 'probes-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: trace_fprobe: Fix typo of the semicolon
tracing: Have eprobes handle arrays
tracing: probes: Add a kerneldoc for traceprobe_parse_event_name()
tracing: uprobe-event: Allocate string buffers from heap
tracing: eprobe-event: Allocate string buffers from heap
tracing: kprobe-event: Allocate string buffers from heap
tracing: fprobe-event: Allocate string buffers from heap
tracing: probe: Allocate traceprobe_parse_context from heap
tracing: probes: Sort #include alphabetically
kprobes: Add missing kerneldoc for __get_insn_slot
tracing: tprobe-events: Register tracepoint when enable tprobe event
selftests: tracing: Enable fprobe events before checking enable_functions
tracing: fprobe-events: Register fprobe-events only when it is enabled
tracing: tprobe-events: Support multiple tprobes on the same tracepoint
tracing: tprobe-events: Remove mod field from tprobe-event
tracing: probe-events: Cleanup entry-arg storing code
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fix from Masami Hiramatsu:
- Fix a potential infinite recursion in fprobe by using preempt_*_notrace()
* tag 'probes-fixes-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: fprobe: Fix infinite recursion using preempt_*_notrace()
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull bootconfig updates from Masami Hiramatsu:
- tools/bootconfig:
- Fix unaligned access when building footer to avoid SIGBUS
- Cleanup bootconfig footer size calculations
- test scripts:
- Fix to add shebang for a test script
- Improve script portability using portable commands
- Improve script portability using printf instead of echo
- Enclose regex with quotes for syntax highlighter
* tag 'bootconfig-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
bootconfig: Fix unaligned access when building footer
tools/bootconfig: scripts/ftrace.sh was missing the shebang line, so added it
tools/bootconfig: Cleanup bootconfig footer size calculations
tools/bootconfig: Replace some echo with printf for more portability
tools/bootconfig: Improve portability
tools: bootconfig: Regex enclosed with quotes to make syntax highlight proper
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git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab updates from Vlastimil Babka:
- Convert struct slab to its own flags instead of referencing page
flags, which is another preparation step before separating it from
struct page completely.
Along with that, a bunch of documentation fixes and cleanups (Matthew
Wilcox)
- Convert large kmalloc to use frozen pages in order to be consistent
with non-large kmalloc slabs (Vlastimil Babka)
- MAINTAINERS updates (Matthew Wilcox, Lorenzo Stoakes)
- Restore NUMA policy support for large kmalloc, broken by mistake in
v6.1 (Vlastimil Babka)
* tag 'slab-for-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
MAINTAINERS: add missing files to slab section
slab: Update MAINTAINERS entry
memcg_slabinfo: Fix use of PG_slab
kfence: Remove mention of PG_slab
vmcoreinfo: Remove documentation of PG_slab and PG_hugetlb
doc: Add slab internal kernel-doc
slub: Fix a documentation build error for krealloc()
slab: Add SL_pfmemalloc flag
slab: Add SL_partial flag
slab: Rename slab->__page_flags to slab->flags
doc: Move SLUB documentation to the admin guide
mm, slab: use frozen pages for large kmalloc
mm, slab: restore NUMA policy support for large kmalloc
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git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Neeraj Upadhyay:
"Expedited grace period updates:
- Protect against early RCU exp quiescent state reporting during exp
grace period initialization
- Remove superfluous barrier in task unblock path
- Remove the CPU online quiescent state report optimization, which is
error prone for certain scenarios
- Add warning for unexpected pending requested expedited quiescent
state on dying CPU
Core:
- Robustify rcu_is_cpu_rrupt_from_idle() by using more accurate
indicators of the actual context tracking state of a CPU
- Handle ->defer_qs_iw_pending field data race
- Enable rcu_normal_wake_from_gp by default on systems with <= 16
CPUs
- Fix lockup in rcu_read_unlock() due to recursive irq_exit() calls
- Refactor expedited handling condition in rcu_read_unlock_special()
- Documentation updates for hotplug and GP init scan ordering,
separation of rcu_state and rnp's gp_seq states, quiescent state
reporting for offline CPUs
torture-scripts:
- Cleanup and improve scripts : remove superfluous warnings for
disabled tests; better handling of kvm.sh --kconfig arg; suppress
some confusing diagnostics; tolerate bad kvm.sh args; add new
diagnostic for build output; fail allmodconfig testing on warnings
- Include RCU_TORTURE_TEST_CHK_RDR_STATE config for KCSAN kernels
- Disable default RCU-tasks and clocksource-wdog testing on arm64
- Add EXPERT Kconfig option for arm64 KCSAN runs
- Remove SRCU-lite testing
rcutorture:
- Start torture writer threads creation after reader threads to
handle race in SRCU-P scenario
- Add SRCU down_read()/up_read() test
- Add diagnostics for delayed SRCU up_read(), unmatched up_read(),
print number of up/down readers and the number of such readers
which migrated to other CPU
- Ignore certain unsupported configurations for trivial RCU test
- Fix splats in RT kernels due to inaccurate checks for BH-disabled
context
- Enable checks and logs to capture intentionally exercised
unexpected scenarios (too short readers) for BUSTED test
- Remove SRCU-lite testing
srcu:
- Expedite SRCU-fast grace periods
- Remove SRCU-lite implementation
- Add guards for SRCU-fast readers
rcu nocb:
- Dump NOCB group leader state on stall detection
- Robustify nocb_cb_kthread pointer accesses
- Fix delayed execution of hurry callbacks when LAZY_RCU is enabled
refscale:
- Fix multiplication overflow in "loops" and "nreaders" calculations"
* tag 'rcu.release.v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (49 commits)
rcu: Document concurrent quiescent state reporting for offline CPUs
rcu: Document separation of rcu_state and rnp's gp_seq
rcu: Document GP init vs hotplug-scan ordering requirements
srcu: Add guards for SRCU-fast readers
rcu: Fix delayed execution of hurry callbacks
rcu: Refactor expedited handling check in rcu_read_unlock_special()
checkpatch: Remove SRCU-lite deprecation
srcu: Remove SRCU-lite implementation
srcu: Expedite SRCU-fast grace periods
rcutorture: Remove support for SRCU-lite
rcutorture: Remove SRCU-lite scenarios
torture: Remove support for SRCU-lite
torture: Make torture.sh --allmodconfig testing fail on warnings
torture: Add "ERROR" diagnostic for testing kernel-build output
torture: Make torture.sh tolerate runs having bad kvm.sh arguments
torture: Add textid.txt file to --do-allmodconfig and --do-rcu-rust runs
torture: Extract testid.txt generation to separate script
torture: Suppress "find" diagnostics from torture.sh --do-none run
torture: Provide EXPERT Kconfig option for arm64 KCSAN torture.sh runs
rcu: Fix rcu_read_unlock() deadloop due to IRQ work
...
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git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux
Pull Kernel Concurrency Sanitizer (KCSAN) update from Marco Elver:
- A single fix to silence an uninitialized variable warning
* tag 'kcsan-20250728-v6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux:
kcsan: test: Initialize dummy variable
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git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu updates from Will Deacon:
"Core:
- Remove the 'pgsize_bitmap' member from 'struct iommu_ops'
- Convert the x86 drivers over to msi_create_parent_irq_domain()
AMD-Vi:
- Add support for examining driver/device internals via debugfs
- Add support for "HATDis" to disable host translation when it is not
supported
- Add support for limiting the maximum host translation level based
on EFR[HATS]
Apple DART:
- Don't enable as built-in by default when ARCH_APPLE is selected
Arm SMMU:
- Devicetree bindings update for the Qualcomm SMMU in the "Milos" SoC
- Support for Qualcomm SM6115 MDSS parts
- Disable PRR on Qualcomm SM8250 as using these bits causes the
hypervisor to explode
Intel VT-d:
- Reorganize Intel VT-d to be ready for iommupt
- Optimize iotlb_sync_map for non-caching/non-RWBF modes
- Fix missed PASID in dev TLB invalidation in cache_tag_flush_all()
Mediatek:
- Fix build warnings when W=1
Samsung Exynos:
- Add support for reserved memory regions specified by the bootloader
TI OMAP:
- Use syscon_regmap_lookup_by_phandle_args() instead of parsing the
node manually
Misc:
- Cleanups and minor fixes across the board"
* tag 'iommu-updates-v6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (48 commits)
iommu/vt-d: Fix UAF on sva unbind with pending IOPFs
iommu/vt-d: Make iotlb_sync_map a static property of dmar_domain
dt-bindings: arm-smmu: Remove sdm845-cheza specific entry
iommu/amd: Fix geometry.aperture_end for V2 tables
iommu/amd: Wrap debugfs ABI testing symbols snippets in literal code blocks
iommu/amd: Add documentation for AMD IOMMU debugfs support
iommu/amd: Add debugfs support to dump IRT Table
iommu/amd: Add debugfs support to dump device table
iommu/amd: Add support for device id user input
iommu/amd: Add debugfs support to dump IOMMU command buffer
iommu/amd: Add debugfs support to dump IOMMU Capability registers
iommu/amd: Add debugfs support to dump IOMMU MMIO registers
iommu/amd: Refactor AMD IOMMU debugfs initial setup
dt-bindings: arm-smmu: document the support on Milos
iommu/exynos: add support for reserved regions
iommu/arm-smmu: disable PRR on SM8250
iommu/arm-smmu-v3: Revert vmaster in the error path
iommu/io-pgtable-arm: Remove unused macro iopte_prot
iommu/arm-smmu-qcom: Add SM6115 MDSS compatible
iommu/qcom: Fix pgsize_bitmap
...
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git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov:
- Remove usermode driver (UMD) framework (Thomas Weißschuh)
- Introduce Strongly Connected Component (SCC) in the verifier to
detect loops and refine register liveness (Eduard Zingerman)
- Allow 'void *' cast using bpf_rdonly_cast() and corresponding
'__arg_untrusted' for global function parameters (Eduard Zingerman)
- Improve precision for BPF_ADD and BPF_SUB operations in the verifier
(Harishankar Vishwanathan)
- Teach the verifier that constant pointer to a map cannot be NULL
(Ihor Solodrai)
- Introduce BPF streams for error reporting of various conditions
detected by BPF runtime (Kumar Kartikeya Dwivedi)
- Teach the verifier to insert runtime speculation barrier (lfence on
x86) to mitigate speculative execution instead of rejecting the
programs (Luis Gerhorst)
- Various improvements for 'veristat' (Mykyta Yatsenko)
- For CONFIG_DEBUG_KERNEL config warn on internal verifier errors to
improve bug detection by syzbot (Paul Chaignon)
- Support BPF private stack on arm64 (Puranjay Mohan)
- Introduce bpf_cgroup_read_xattr() kfunc to read xattr of cgroup's
node (Song Liu)
- Introduce kfuncs for read-only string opreations (Viktor Malik)
- Implement show_fdinfo() for bpf_links (Tao Chen)
- Reduce verifier's stack consumption (Yonghong Song)
- Implement mprog API for cgroup-bpf programs (Yonghong Song)
* tag 'bpf-next-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (192 commits)
selftests/bpf: Migrate fexit_noreturns case into tracing_failure test suite
selftests/bpf: Add selftest for attaching tracing programs to functions in deny list
bpf: Add log for attaching tracing programs to functions in deny list
bpf: Show precise rejected function when attaching fexit/fmod_ret to __noreturn functions
bpf: Fix various typos in verifier.c comments
bpf: Add third round of bounds deduction
selftests/bpf: Test invariants on JSLT crossing sign
selftests/bpf: Test cross-sign 64bits range refinement
selftests/bpf: Update reg_bound range refinement logic
bpf: Improve bounds when s64 crosses sign boundary
bpf: Simplify bounds refinement from s32
selftests/bpf: Enable private stack tests for arm64
bpf, arm64: JIT support for private stack
bpf: Move bpf_jit_get_prog_name() to core.c
bpf, arm64: Fix fp initialization for exception boundary
umd: Remove usermode driver framework
bpf/preload: Don't select USERMODE_DRIVER
selftests/bpf: Fix test dynptr/test_dynptr_memset_xdp_chunks failure
selftests/bpf: Fix test dynptr/test_dynptr_copy_xdp failure
selftests/bpf: Increase xdp data size for arm64 64K page size
...
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core & protocols:
- Wrap datapath globals into net_aligned_data, to avoid false sharing
- Preserve MSG_ZEROCOPY in forwarding (e.g. out of a container)
- Add SO_INQ and SCM_INQ support to AF_UNIX
- Add SIOCINQ support to AF_VSOCK
- Add TCP_MAXSEG sockopt to MPTCP
- Add IPv6 force_forwarding sysctl to enable forwarding per interface
- Make TCP validation of whether packet fully fits in the receive
window and the rcv_buf more strict. With increased use of HW
aggregation a single "packet" can be multiple 100s of kB
- Add MSG_MORE flag to optimize large TCP transmissions via sockmap,
improves latency up to 33% for sockmap users
- Convert TCP send queue handling from tasklet to BH workque
- Improve BPF iteration over TCP sockets to see each socket exactly
once
- Remove obsolete and unused TCP RFC3517/RFC6675 loss recovery code
- Support enabling kernel threads for NAPI processing on per-NAPI
instance basis rather than a whole device. Fully stop the kernel
NAPI thread when threaded NAPI gets disabled. Previously thread
would stick around until ifdown due to tricky synchronization
- Allow multicast routing to take effect on locally-generated packets
- Add output interface argument for End.X in segment routing
- MCTP: add support for gateway routing, improve bind() handling
- Don't require rtnl_lock when fetching an IPv6 neighbor over Netlink
- Add a new neighbor flag ("extern_valid"), which cedes refresh
responsibilities to userspace. This is needed for EVPN multi-homing
where a neighbor entry for a multi-homed host needs to be synced
across all the VTEPs among which the host is multi-homed
- Support NUD_PERMANENT for proxy neighbor entries
- Add a new queuing discipline for IETF RFC9332 DualQ Coupled AQM
- Add sequence numbers to netconsole messages. Unregister
netconsole's console when all net targets are removed. Code
refactoring. Add a number of selftests
- Align IPSec inbound SA lookup to RFC 4301. Only SPI and protocol
should be used for an inbound SA lookup
- Support inspecting ref_tracker state via DebugFS
- Don't force bonding advertisement frames tx to ~333 ms boundaries.
Add broadcast_neighbor option to send ARP/ND on all bonded links
- Allow providing upcall pid for the 'execute' command in openvswitch
- Remove DCCP support from Netfilter's conntrack
- Disallow multiple packet duplications in the queuing layer
- Prevent use of deprecated iptables code on PREEMPT_RT
Driver API:
- Support RSS and hashing configuration over ethtool Netlink
- Add dedicated ethtool callbacks for getting and setting hashing
fields
- Add support for power budget evaluation strategy in PSE /
Power-over-Ethernet. Generate Netlink events for overcurrent etc
- Support DPLL phase offset monitoring across all device inputs.
Support providing clock reference and SYNC over separate DPLL
inputs
- Support traffic classes in devlink rate API for bandwidth
management
- Remove rtnl_lock dependency from UDP tunnel port configuration
Device drivers:
- Add a new Broadcom driver for 800G Ethernet (bnge)
- Add a standalone driver for Microchip ZL3073x DPLL
- Remove IBM's NETIUCV device driver
- Ethernet high-speed NICs:
- Broadcom (bnxt):
- support zero-copy Tx of DMABUF memory
- take page size into account for page pool recycling rings
- Intel (100G, ice, idpf):
- idpf: XDP and AF_XDP support preparations
- idpf: add flow steering
- add link_down_events statistic
- clean up the TSPLL code
- preparations for live VM migration
- nVidia/Mellanox:
- support zero-copy Rx/Tx interfaces (DMABUF and io_uring)
- optimize context memory usage for matchers
- expose serial numbers in devlink info
- support PCIe congestion metrics
- Meta (fbnic):
- add 25G, 50G, and 100G link modes to phylink
- support dumping FW logs
- Marvell/Cavium:
- support for CN20K generation of the Octeon chips
- Amazon:
- add HW clock (without timestamping, just hypervisor time access)
- Ethernet virtual:
- VirtIO net:
- support segmentation of UDP-tunnel-encapsulated packets
- Google (gve):
- support packet timestamping and clock synchronization
- Microsoft vNIC:
- add handler for device-originated servicing events
- allow dynamic MSI-X vector allocation
- support Tx bandwidth clamping
- Ethernet NICs consumer, and embedded:
- AMD:
- amd-xgbe: hardware timestamping and PTP clock support
- Broadcom integrated MACs (bcmgenet, bcmasp):
- use napi_complete_done() return value to support NAPI polling
- add support for re-starting auto-negotiation
- Broadcom switches (b53):
- support BCM5325 switches
- add bcm63xx EPHY power control
- Synopsys (stmmac):
- lots of code refactoring and cleanups
- TI:
- icssg-prueth: read firmware-names from device tree
- icssg: PRP offload support
- Microchip:
- lan78xx: convert to PHYLINK for improved PHY and MAC management
- ksz: add KSZ8463 switch support
- Intel:
- support similar queue priority scheme in multi-queue and
time-sensitive networking (taprio)
- support packet pre-emption in both
- RealTek (r8169):
- enable EEE at 5Gbps on RTL8126
- Airoha:
- add PPPoE offload support
- MDIO bus controller for Airoha AN7583
- Ethernet PHYs:
- support for the IPQ5018 internal GE PHY
- micrel KSZ9477 switch-integrated PHYs:
- add MDI/MDI-X control support
- add RX error counters
- add cable test support
- add Signal Quality Indicator (SQI) reporting
- dp83tg720: improve reset handling and reduce link recovery time
- support bcm54811 (and its MII-Lite interface type)
- air_en8811h: support resume/suspend
- support PHY counters for QCA807x and QCA808x
- support WoL for QCA807x
- CAN drivers:
- rcar_canfd: support for Transceiver Delay Compensation
- kvaser: report FW versions via devlink dev info
- WiFi:
- extended regulatory info support (6 GHz)
- add statistics and beacon monitor for Multi-Link Operation (MLO)
- support S1G aggregation, improve S1G support
- add Radio Measurement action fields
- support per-radio RTS threshold
- some work around how FIPS affects wifi, which was wrong (RC4 is
used by TKIP, not only WEP)
- improvements for unsolicited probe response handling
- WiFi drivers:
- RealTek (rtw88):
- IBSS mode for SDIO devices
- RealTek (rtw89):
- BT coexistence for MLO/WiFi7
- concurrent station + P2P support
- support for USB devices RTL8851BU/RTL8852BU
- Intel (iwlwifi):
- use embedded PNVM in (to be released) FW images to fix
compatibility issues
- many cleanups (unused FW APIs, PCIe code, WoWLAN)
- some FIPS interoperability
- MediaTek (mt76):
- firmware recovery improvements
- more MLO work
- Qualcomm/Atheros (ath12k):
- fix scan on multi-radio devices
- more EHT/Wi-Fi 7 features
- encapsulation/decapsulation offload
- Broadcom (brcm80211):
- support SDIO 43751 device
- Bluetooth:
- hci_event: add support for handling LE BIG Sync Lost event
- ISO: add socket option to report packet seqnum via CMSG
- ISO: support SCM_TIMESTAMPING for ISO TS
- Bluetooth drivers:
- intel_pcie: support Function Level Reset
- nxpuart: add support for 4M baudrate
- nxpuart: implement powerup sequence, reset, FW dump, and FW loading"
* tag 'net-next-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1742 commits)
dpll: zl3073x: Fix build failure
selftests: bpf: fix legacy netfilter options
ipv6: annotate data-races around rt->fib6_nsiblings
ipv6: fix possible infinite loop in fib6_info_uses_dev()
ipv6: prevent infinite loop in rt6_nlmsg_size()
ipv6: add a retry logic in net6_rt_notify()
vrf: Drop existing dst reference in vrf_ip6_input_dst
net/sched: taprio: align entry index attr validation with mqprio
net: fsl_pq_mdio: use dev_err_probe
selftests: rtnetlink.sh: remove esp4_offload after test
vsock: remove unnecessary null check in vsock_getname()
igb: xsk: solve negative overflow of nb_pkts in zerocopy mode
stmmac: xsk: fix negative overflow of budget in zerocopy mode
dt-bindings: ieee802154: Convert at86rf230.txt yaml format
net: dsa: microchip: Disable PTP function of KSZ8463
net: dsa: microchip: Setup fiber ports for KSZ8463
net: dsa: microchip: Write switch MAC address differently for KSZ8463
net: dsa: microchip: Use different registers for KSZ8463
net: dsa: microchip: Add KSZ8463 switch support to KSZ DSA driver
dt-bindings: net: dsa: microchip: Add KSZ8463 switch support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl
Pull sysctl updates from Joel Granados:
- Move sysctls out of the kern_table array
This is the final move of ctl_tables into their respective
subsystems. Only 5 (out of the original 50) will remain in
kernel/sysctl.c file; these handle either sysctl or common arch
variables.
By decentralizing sysctl registrations, subsystem maintainers regain
control over their sysctl interfaces, improving maintainability and
reducing the likelihood of merge conflicts.
- docs: Remove false positives from check-sysctl-docs
Stopped falsely identifying sysctls as undocumented or unimplemented
in the check-sysctl-docs script. This script can now be used to
automatically identify if documentation is missing.
* tag 'sysctl-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl: (23 commits)
docs: Downgrade arm64 & riscv from titles to comment
docs: Replace spaces with tabs in check-sysctl-docs
docs: Remove colon from ctltable title in vm.rst
docs: Add awk section for ucount sysctl entries
docs: Use skiplist when checking sysctl admin-guide
docs: nixify check-sysctl-docs
sysctl: rename kern_table -> sysctl_subsys_table
kernel/sys.c: Move overflow{uid,gid} sysctl into kernel/sys.c
uevent: mv uevent_helper into kobject_uevent.c
sysctl: Removed unused variable
sysctl: Nixify sysctl.sh
sysctl: Remove superfluous includes from kernel/sysctl.c
sysctl: Remove (very) old file changelog
sysctl: Move sysctl_panic_on_stackoverflow to kernel/panic.c
sysctl: move cad_pid into kernel/pid.c
sysctl: Move tainted ctl_table into kernel/panic.c
Input: sysrq: mv sysrq into drivers/tty/sysrq.c
fork: mv threads-max into kernel/fork.c
parisc/power: Move soft-power into power.c
mm: move randomize_va_space into memory.c
...
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening fixes from Kees Cook:
"Notably, this contains the fix for for the GCC __init mess I created
with the kstack_erase annotations.
- staging: media: atomisp: Fix stack buffer overflow in
gmin_get_var_int().
I was asked to carry this fix, so here it is. :)
- fortify: Fix incorrect reporting of read buffer size
- kstack_erase: Fix missed export of renamed KSTACK_ERASE_CFLAGS
- compiler_types: Provide __no_kstack_erase to disable coverage only
on Clang"
* tag 'hardening-v6.17-rc1-fix1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
compiler_types: Provide __no_kstack_erase to disable coverage only on Clang
fortify: Fix incorrect reporting of read buffer size
kstack_erase: Fix missed export of renamed KSTACK_ERASE_CFLAGS
staging: media: atomisp: Fix stack buffer overflow in gmin_get_var_int()
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git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux
Pull uml updates from Johannes Berg:
"Mostly cleanups, except:
- dynamic addition of vfio passthrough devices
- implementation of HAVE_SYSCALL_TRACEPOINTS"
* tag 'uml-for-linux-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux:
um: Replace __ASSEMBLY__ with __ASSEMBLER__ in the usermode headers
um: Stop tracking stub's PID via userspace_pid[]
um: Remove the pid parameter of handle_trap()
um: Use err consistently in userspace()
um: vfio: Support adding devices via mconsole
um: rtc: Avoid shadowing err in uml_rtc_start()
um: Avoid redefining ARCH_HAS_CACHE_LINE_SIZE
um: Make mm_list and mm_list_lock static
um: Make unscheduled_userspace_iterations static
um: Re-evaluate thread flags repeatedly
um: simplify syscall header files
um/ptrace: Implement HAVE_SYSCALL_TRACEPOINTS
um/x86: Add system call table to header file
um: virt-pci: Switch to msi_create_parent_irq_domain()
um: virtio_pcidev: Rename UM_PCI_STAT_WAITING
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Madhavan Srinivasan:
- CONFIG_HZ changes to move the base_slice from 10ms to 1ms
- Patchset to move some of the mutex handling to lock guard
- Expose secvars relevant to the key management mode
- Misc cleanups and fixes
Thanks to Ankit Chauhan, Christophe Leroy, Donet Tom, Gautam Menghani,
Haren Myneni, Johan Korsnes, Madadi Vineeth Reddy, Paul Mackerras,
Shrikanth Hegde, Srish Srinivasan, Thomas Fourier, Thomas Huth, Thomas
Weißschuh, Souradeep, Amit Machhiwal, R Nageswara Sastry, Venkat Rao
Bagalkote, Andrew Donnellan, Greg Kroah-Hartman, Mimi Zohar, Mukesh
Kumar Chaurasiya, Nayna Jain, Ritesh Harjani (IBM), Sourabh Jain, Srikar
Dronamraju, Stefan Berger, Tyrel Datwyler, and Kowshik Jois.
* tag 'powerpc-6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (23 commits)
arch/powerpc: Remove .interp section in vmlinux
powerpc: Drop GPL boilerplate text with obsolete FSF address
powerpc: Don't use %pK through printk
arch: powerpc: defconfig: Drop obsolete CONFIG_NET_CLS_TCINDEX
misc: ocxl: Replace scnprintf() with sysfs_emit() in sysfs show functions
integrity/platform_certs: Allow loading of keys in the static key management mode
powerpc/secvar: Expose secvars relevant to the key management mode
powerpc/pseries: Correct secvar format representation for static key management
(powerpc/512) Fix possible `dma_unmap_single()` on uninitialized pointer
powerpc: floppy: Add missing checks after DMA map
book3s64/radix : Optimize vmemmap start alignment
book3s64/radix : Handle error conditions properly in radix_vmemmap_populate
powerpc/pseries/dlpar: Search DRC index from ibm,drc-indexes for IO add
KVM: PPC: Book3S HV: Add H_VIRT mapping for tracing exits
powerpc: sysdev: use lock guard for mutex
powerpc: powernv: ocxl: use lock guard for mutex
powerpc: book3s: vas: use lock guard for mutex
powerpc: fadump: use lock guard for mutex
powerpc: rtas: use lock guard for mutex
powerpc: eeh: use lock guard for mutex
...
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"A quick summary: perf support for Branch Record Buffer Extensions
(BRBE), typical PMU hardware updates, small additions to MTE for
store-only tag checking and exposing non-address bits to signal
handlers, HAVE_LIVEPATCH enabled on arm64, VMAP_STACK forced on.
There is also a TLBI optimisation on hardware that does not require
break-before-make when changing the user PTEs between contiguous and
non-contiguous.
More details:
Perf and PMU updates:
- Add support for new (v3) Hisilicon SLLC and DDRC PMUs
- Add support for Arm-NI PMU integrations that share interrupts
between clock domains within a given instance
- Allow SPE to be configured with a lower sample period than the
minimum recommendation advertised by PMSIDR_EL1.Interval
- Add suppport for Arm's "Branch Record Buffer Extension" (BRBE)
- Adjust the perf watchdog period according to cpu frequency changes
- Minor driver fixes and cleanups
Hardware features:
- Support for MTE store-only checking (FEAT_MTE_STORE_ONLY)
- Support for reporting the non-address bits during a synchronous MTE
tag check fault (FEAT_MTE_TAGGED_FAR)
- Optimise the TLBI when folding/unfolding contiguous PTEs on
hardware with FEAT_BBM (break-before-make) level 2 and no TLB
conflict aborts
Software features:
- Enable HAVE_LIVEPATCH after implementing arch_stack_walk_reliable()
and using the text-poke API for late module relocations
- Force VMAP_STACK always on and change arm64_efi_rt_init() to use
arch_alloc_vmap_stack() in order to avoid KASAN false positives
ACPI:
- Improve SPCR handling and messaging on systems lacking an SPCR
table
Debug:
- Simplify the debug exception entry path
- Drop redundant DBG_MDSCR_* macros
Kselftests:
- Cleanups and improvements for SME, SVE and FPSIMD tests
Miscellaneous:
- Optimise loop to reduce redundant operations in contpte_ptep_get()
- Remove ISB when resetting POR_EL0 during signal handling
- Mark the kernel as tainted on SEA and SError panic
- Remove redundant gcs_free() call"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (93 commits)
arm64/gcs: task_gcs_el0_enable() should use passed task
arm64: Kconfig: Keep selects somewhat alphabetically ordered
arm64: signal: Remove ISB when resetting POR_EL0
kselftest/arm64: Handle attempts to disable SM on SME only systems
kselftest/arm64: Fix SVE write data generation for SME only systems
kselftest/arm64: Test SME on SME only systems in fp-ptrace
kselftest/arm64: Test FPSIMD format data writes via NT_ARM_SVE in fp-ptrace
kselftest/arm64: Allow sve-ptrace to run on SME only systems
arm64/mm: Drop redundant addr increment in set_huge_pte_at()
kselftest/arm4: Provide local defines for AT_HWCAP3
arm64: Mark kernel as tainted on SAE and SError panic
arm64/gcs: Don't call gcs_free() when releasing task_struct
drivers/perf: hisi: Support PMUs with no interrupt
drivers/perf: hisi: Relax the event number check of v2 PMUs
drivers/perf: hisi: Add support for HiSilicon SLLC v3 PMU driver
drivers/perf: hisi: Use ACPI driver_data to retrieve SLLC PMU information
drivers/perf: hisi: Add support for HiSilicon DDRC v3 PMU driver
drivers/perf: hisi: Simplify the probe process for each DDRC version
perf/arm-ni: Support sharing IRQs within an NI instance
perf/arm-ni: Consolidate CPU affinity handling
...
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git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
Pull m68k updates from Geert Uytterhoeven:
- ptdescs conversions
- Fix lost column on the graphical debug console
- Replace __ASSEMBLY__ with __ASSEMBLER__ in headers
- Miscellaneous fixes and improvements
- defconfig updates
* tag 'm68k-for-v6.17-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: mac: Improve clocksource driver commentary
m68k: defconfig: Update defconfigs for v6.16-rc2
m68k: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
m68k: Replace __ASSEMBLY__ with __ASSEMBLER__ in uapi headers
m68k: Enable dead code elimination
m68k: Don't unregister boot console needlessly
m68k: Remove unused "cursor home" code from debug console
m68k: Avoid pointless recursion in debug console rendering
m68k: Fix lost column on framebuffer debug console
m68k: mm: Convert pointer table macros to use ptdescs
m68k: mm: Convert init_pointer_table() to use ptdescs
m68k: mm: Convert free_pointer_table() to use ptdescs
m68k: mm: Convert get_pointer_table() to use ptdescs
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Alexander Gordeev:
- Standardize on the __ASSEMBLER__ macro that is provided by GCC and
Clang compilers and replace __ASSEMBLY__ with __ASSEMBLER__ in both
uapi and non-uapi headers
- Explicitly include <linux/export.h> in architecture and driver files
which contain an EXPORT_SYMBOL() and remove the include from the
files which do not contain the EXPORT_SYMBOL()
- Use the full title of "z/Architecture Principles of Operation" manual
and the name of a section where facility bits are listed
- Use -D__DISABLE_EXPORTS for files in arch/s390/boot to avoid
unnecessary slowing down of the build and confusing external kABI
tools that process symtypes data
- Print additional unrecoverable machine check information to make the
root cause analysis easier
- Move cmpxchg_user_key() handling to uaccess library code, since the
generated code is large anyway and there is no benefit if it is
inlined
- Fix a problem when cmpxchg_user_key() is executing a code with a
non-default key: if a system is IPL-ed with "LOAD NORMAL", and the
previous system used storage keys where the fetch-protection bit was
set for some pages, and the cmpxchg_user_key() is located within such
page, a protection exception happens
- Either the external call or emergency signal order is used to send an
IPI to a remote CPU. Use the external order only, since it is at
least as good and sometimes even better, than the emergency signal
- In case of an early crash the early program check handler prints more
or less random value of the last breaking event address, since it is
not initialized properly. Copy the last breaking event address from
the lowcore to pt_regs to address this
- During STP synchronization check udelay() can not be used, since the
first CPU modifies tod_clock_base and get_tod_clock_monotonic() might
return a non-monotonic time. Instead, busy-loop on other CPUs, while
the the first CPU actually handles the synchronization operation
- When debugging the early kernel boot using QEMU with the -S flag and
GDB attached, skip the decompressor and start directly in kernel
- Rename PAI Crypto event 4210 according to z16 and z17 "z/Architecture
Principles of Operation" manual
- Remove the in-kernel time steering support in favour of the new s390
PTP driver, which allows the kernel clock steered more precisely
- Remove a possible false-positive warning in pte_free_defer(), which
could be triggered in a valid case KVM guest process is initializing
* tag 's390-6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (29 commits)
s390/mm: Remove possible false-positive warning in pte_free_defer()
s390/stp: Default to enabled
s390/stp: Remove leap second support
s390/time: Remove in-kernel time steering
s390/sclp: Use monotonic clock in sclp_sync_wait()
s390/smp: Use monotonic clock in smp_emergency_stop()
s390/time: Use monotonic clock in get_cycles()
s390/pai_crypto: Rename PAI Crypto event 4210
scripts/gdb/symbols: make lx-symbols skip the s390 decompressor
s390/boot: Introduce jump_to_kernel() function
s390/stp: Remove udelay from stp_sync_clock()
s390/early: Copy last breaking event address to pt_regs
s390/smp: Remove conditional emergency signal order code usage
s390/uaccess: Merge cmpxchg_user_key() inline assemblies
s390/uaccess: Prevent kprobes on cmpxchg_user_key() functions
s390/uaccess: Initialize code pages executed with non-default access key
s390/skey: Provide infrastructure for executing with non-default access key
s390/uaccess: Make cmpxchg_user_key() library code
s390/page: Add memory clobber to page_set_storage_key()
s390/page: Cleanup page_set_storage_key() inline assemblies
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Ingo Molnar:
"This adds support for the AMD hardware feedback interface (HFI), by
Perry Yuan"
* tag 'x86-platform-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/itmt: Add debugfs file to show core priorities
platform/x86/amd: hfi: Add debugfs support
platform/x86/amd: hfi: Set ITMT priority from ranking data
cpufreq/amd-pstate: Disable preferred cores on designs with workload classification
x86/process: Clear hardware feedback history for AMD processors
platform/x86: hfi: Add power management callback
platform/x86: hfi: Add online and offline callback support
platform/x86: hfi: Init per-cpu scores for each class
platform/x86: hfi: Parse CPU core ranking data from shared memory
platform/x86: hfi: Introduce AMD Hardware Feedback Interface Driver
x86/msr-index: Add AMD workload classification MSRs
MAINTAINERS: Add maintainer entry for AMD Hardware Feedback Driver
Documentation/x86: Add AMD Hardware Feedback Interface documentation
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 kconfig updates from Ingo Molnar:
- Emit standard build success messages in insn_sanity.c and
insn_decoder_test.c (Ingo Molnar)
- Refresh the x86-[64|32] defconfigs mechanically (Ingo Molnar)
* tag 'x86-kconfig-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/tools: insn_sanity.c: Emit standard build success messages
x86/tools: insn_decoder_test.c: Emit standard build success messages
x86/kconfig/32: Refresh defconfig
x86/kconfig/64: Refresh defconfig
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|
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 FPU updates from Ingo Molnar:
- Most of the changes are related to the implementation of CET
supervisor state support for guests, and its preparatory changes
(Chao Gao)
- Improve/fix the debug output for unexpected FPU exceptions (Dave
Hansen)
* tag 'x86-fpu-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/fpu: Delay instruction pointer fixup until after warning
x86/fpu/xstate: Add CET supervisor xfeature support as a guest-only feature
x86/fpu/xstate: Introduce "guest-only" supervisor xfeature set
x86/fpu: Remove xfd argument from __fpstate_reset()
x86/fpu: Initialize guest fpstate and FPU pseudo container from guest defaults
x86/fpu: Initialize guest FPU permissions from guest defaults
x86/fpu/xstate: Differentiate default features for host and guest FPUs
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu update from Ingo Molnar:
"Add user-space CPUID faulting support for AMD CPUs"
* tag 'x86-cpu-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/CPU/AMD: Add CPUID faulting support
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar:
"Miscellaneous x86 cleanups"
* tag 'x86-cleanups-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/apic: Move apic_update_irq_cfg() call to apic_update_vector()
x86/mm: Remove duplicated __PAGE_KERNEL(_EXEC) definitions
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 boot updates from Ingo Molnar:
- Implement support for embedding EFI SBAT data (Secure Boot Advanced
Targeting: a secure boot image revocation facility) on x86 (Vitaly
Kuznetsov)
- Move the efi_enter_virtual_mode() initialization call from the
generic init code to x86 init code (Alexander Shishkin)
* tag 'x86-boot-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/efi: Implement support for embedding SBAT data for x86
x86/efi: Move runtime service initialization to arch/x86
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Locking primitives:
- Mark devm_mutex_init() as __must_check and fix drivers that didn't
check the return code (Thomas Weißschuh)
- Reorganize <linux/local_lock.h> to better expose the internal APIs
to local variables (Sebastian Andrzej Siewior)
- Remove OWNER_SPINNABLE in rwsem (Jinliang Zheng)
- Remove redundant #ifdefs in the mutex code (Ran Xiaokai)
Lockdep:
- Avoid returning struct in lock_stats() (Arnd Bergmann)
- Change `static const` into enum for LOCKF_*_IRQ_* (Arnd Bergmann)
- Temporarily use synchronize_rcu_expedited() in
lockdep_unregister_key() to speed things up. (Breno Leitao)
Rust runtime:
- Add #[must_use] to Lock::try_lock() (Jason Devers)"
* tag 'locking-core-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
lockdep: Speed up lockdep_unregister_key() with expedited RCU synchronization
locking/mutex: Remove redundant #ifdefs
locking/lockdep: Change 'static const' variables to enum values
locking/lockdep: Avoid struct return in lock_stats()
locking/rwsem: Use OWNER_NONSPINNABLE directly instead of OWNER_SPINNABLE
rust: sync: Add #[must_use] to Lock::try_lock()
locking/mutex: Mark devm_mutex_init() as __must_check
leds: lp8860: Check return value of devm_mutex_init()
spi: spi-nxp-fspi: Check return value of devm_mutex_init()
local_lock: Move this_cpu_ptr() notation from internal to main header
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 performance events updates from Ingo Molnar:
"Intel uncore driver enhancements (Kan Liang):
- Support MSR portal for discovery tables
- Support customized MMIO map size
- Add Panther Lake support
- Add IMC freerunning support for Panther Lake"
* tag 'perf-core-2025-07-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/uncore: Add iMC freerunning for Panther Lake
perf/x86/intel/uncore: Add Panther Lake support
perf/x86/intel/uncore: Support customized MMIO map size
perf/x86/intel/uncore: Support MSR portal for discovery tables
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Core scheduler changes:
- Better tracking of maximum lag of tasks in presence of different
slices duration, for better handling of lag in the fair scheduler
(Vincent Guittot)
- Clean up and standardize #if/#else/#endif markers throughout the
entire scheduler code base (Ingo Molnar)
- Make SMP unconditional: build the SMP scheduler's data structures
and logic on UP kernel too, even though they are not used, to
simplify the scheduler and remove around 200 #ifdef/[#else]/#endif
blocks from the scheduler (Ingo Molnar)
- Reorganize cgroup bandwidth control interface handling for better
interfacing with sched_ext (Tejun Heo)
Balancing:
- Bump sd->max_newidle_lb_cost when newidle balance fails (Chris
Mason)
- Remove sched_domain_topology_level::flags to simplify the code
(Prateek Nayak)
- Simplify and clean up build_sched_topology() (Li Chen)
- Optimize build_sched_topology() on large machines (Li Chen)
Real-time scheduling:
- Add initial version of proxy execution: a mechanism for
mutex-owning tasks to inherit the scheduling context of higher
priority waiters.
Currently limited to a single runqueue and conditional on
CONFIG_EXPERT, and other limitations (John Stultz, Peter Zijlstra,
Valentin Schneider)
- Deadline scheduler (Juri Lelli):
- Fix dl_servers initialization order (Juri Lelli)
- Fix DL scheduler's root domain reinitialization logic (Juri
Lelli)
- Fix accounting bugs after global limits change (Juri Lelli)
- Fix scalability regression by implementing less agressive
dl_server handling (Peter Zijlstra)
PSI:
- Improve scalability by optimizing psi_group_change() cpu_clock()
usage (Peter Zijlstra)
Rust changes:
- Make Task, CondVar and PollCondVar methods inline to avoid
unnecessary function calls (Kunwu Chan, Panagiotis Foliadis)
- Add might_sleep() support for Rust code: Rust's "#[track_caller]"
mechanism is used so that Rust's might_sleep() doesn't need to be
defined as a macro (Fujita Tomonori)
- Introduce file_from_location() (Boqun Feng)
Debugging & instrumentation:
- Make clangd usable with scheduler source code files again (Peter
Zijlstra)
- tools: Add root_domains_dump.py which dumps root domains info (Juri
Lelli)
- tools: Add dl_bw_dump.py for printing bandwidth accounting info
(Juri Lelli)
Misc cleanups & fixes:
- Remove play_idle() (Feng Lee)
- Fix check_preemption_disabled() (Sebastian Andrzej Siewior)
- Do not call __put_task_struct() on RT if pi_blocked_on is set (Luis
Claudio R. Goncalves)
- Correct the comment in place_entity() (wang wei)"
* tag 'sched-core-2025-07-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (84 commits)
sched/idle: Remove play_idle()
sched: Do not call __put_task_struct() on rt if pi_blocked_on is set
sched: Start blocked_on chain processing in find_proxy_task()
sched: Fix proxy/current (push,pull)ability
sched: Add an initial sketch of the find_proxy_task() function
sched: Fix runtime accounting w/ split exec & sched contexts
sched: Move update_curr_task logic into update_curr_se
locking/mutex: Add p->blocked_on wrappers for correctness checks
locking/mutex: Rework task_struct::blocked_on
sched: Add CONFIG_SCHED_PROXY_EXEC & boot argument to enable/disable
sched/topology: Remove sched_domain_topology_level::flags
x86/smpboot: avoid SMT domain attach/destroy if SMT is not enabled
x86/smpboot: moves x86_topology to static initialize and truncate
x86/smpboot: remove redundant CONFIG_SCHED_SMT
smpboot: introduce SDTL_INIT() helper to tidy sched topology setup
tools/sched: Add dl_bw_dump.py for printing bandwidth accounting info
tools/sched: Add root_domains_dump.py which dumps root domains info
sched/deadline: Fix accounting after global limits change
sched/deadline: Reset extra_bw to max_bw when clearing root domains
sched/deadline: Initialize dl_servers after SMP
...
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In order to support Clang's stack depth tracking (for Linux's kstack_erase
feature), the coverage sanitizer needed to be disabled for __init (and
__head) section code. Doing this universally (i.e. for GCC too) created
a number of unexpected problems, ranging from changes to inlining logic
to failures to DCE code on earlier GCC versions.
Since this change is only needed for Clang, specialize it so that GCC
doesn't see the change as it isn't needed there (the GCC implementation
of kstack_erase uses a GCC plugin that removes stack depth tracking
instrumentation from __init sections during a late pass in the IR).
Successfully build and boot tested with GCC 12 and Clang 22.
Fixes: 381a38ea53d2 ("init.h: Disable sanitizer coverage for __init and __head")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202507270258.neWuiXLd-lkp@intel.com/
Reported-by: syzbot+5245cb609175fb6e8122@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/6888d004.a00a0220.26d0e1.0004.GAE@google.com/
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Marco Elver <elver@google.com>
Link: https://lore.kernel.org/r/20250729234055.it.233-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
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When FORTIFY_SOURCE reports about a run-time buffer overread, the wrong
buffer size was being shown in the error message. (The bounds checking
was correct.)
Fixes: 3d965b33e40d ("fortify: Improve buffer overflow reporting")
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20250729231817.work.023-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 SEV updates from Borislav Petkov:
- Map the SNP calling area pages too so that OVMF EFI fw can issue SVSM
calls properly with the goal of implementing EFI variable store in
the SVSM - a component which is trusted by the guest, vs in the
firmware, which is not
- Allow the kernel to handle #VC exceptions from EFI runtime services
properly when running as a SNP guest
- Rework and cleanup the SNP guest request issue glue code a bit
* tag 'x86_sev_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/sev: Let sev_es_efi_map_ghcbs() map the CA pages too
x86/sev/vc: Fix EFI runtime instruction emulation
x86/sev: Drop unnecessary parameter in snp_issue_guest_request()
x86/sev: Document requirement for linear mapping of guest request buffers
x86/sev: Allocate request in TSC_INFO_REQ on stack
virt: sev-guest: Contain snp_guest_request_ioctl in sev-guest
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Certain targets disable kstack_erase by filtering out KSTACK_ERASE_CFLAGS
rather than adding DISABLE_KSTACK_ERASE. The renaming to kstack_erase
missed the CFLAGS export, which broke those build targets (e.g. x86
vdso32).
Fixes: 76261fc7d1be ("stackleak: Split KSTACK_ERASE_CFLAGS from GCC_PLUGINS_CFLAGS")
Signed-off-by: Kees Cook <kees@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode loader update from Borislav Petkov:
- Switch the microcode loader from using the fake platform device to
the new simple faux bus
* tag 'x86_microcode_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/microcode: Move away from using a fake platform device
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cpu updates from Borislav Petkov:
- Add helpers for WB{NO,}INVD with the purpose of using them in KVM and
thus diminish the number of invalidations needed. With preceding
cleanups, as always
* tag 'x86_core_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/lib: Add WBINVD and WBNOINVD helpers to target multiple CPUs
x86/lib: Add WBNOINVD helper functions
x86/lib: Drop the unused return value from wbinvd_on_all_cpus()
drm/gpu: Remove dead checks on wbinvd_on_all_cpus()'s return value
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 CPU mitigation updates from Borislav Petkov:
- Untangle the Retbleed from the ITS mitigation on Intel. Allow for ITS
to enable stuffing independently from Retbleed, do some cleanups to
simplify and streamline the code
- Simplify SRSO and make mitigation types selection more versatile
depending on the Retbleed mitigation selection. Simplify code some
- Add the second part of the attack vector controls which provide a lot
friendlier user interface to the speculation mitigations than
selecting each one by one as it is now.
Instead, the selection of whole attack vectors which are relevant to
the system in use can be done and protection against only those
vectors is enabled, thus giving back some performance to the users
* tag 'x86_bugs_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
x86/bugs: Print enabled attack vectors
x86/bugs: Add attack vector controls for TSA
x86/pti: Add attack vector controls for PTI
x86/bugs: Add attack vector controls for ITS
x86/bugs: Add attack vector controls for SRSO
x86/bugs: Add attack vector controls for L1TF
x86/bugs: Add attack vector controls for spectre_v2
x86/bugs: Add attack vector controls for BHI
x86/bugs: Add attack vector controls for spectre_v2_user
x86/bugs: Add attack vector controls for retbleed
x86/bugs: Add attack vector controls for spectre_v1
x86/bugs: Add attack vector controls for GDS
x86/bugs: Add attack vector controls for SRBDS
x86/bugs: Add attack vector controls for RFDS
x86/bugs: Add attack vector controls for MMIO
x86/bugs: Add attack vector controls for TAA
x86/bugs: Add attack vector controls for MDS
x86/bugs: Define attack vectors relevant for each bug
x86/Kconfig: Add arch attack vector support
cpu: Define attack vectors
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull EDAC updates from Borislav Petkov:
- i10nm:
- switch to using scnprintf()
- Add Granite Rapids-D support
- synopsys: Make sure ECC error and counter registers are cleared
during init/probing to avoid reporting stale errors
- igen6: Add Wildcat Lake SoCs support
- Make sure scrub features sysfs attributes are initialized properly
- Allocate memory repair sysfs attributes statically to reduce stack
usage
- Fix DIMM module size computation for DIMMs with total capacity which
is a non power-of-two number, in amd64_edac
- Do not be too dramatic when reporting disabled memory controllers in
igen6_edac
- Add support to ie31200_edac for the following SoCs:
- Core i5-14[67]00
- Bartless Lake-S SoCs
- Raptor Lake-HX
* tag 'edac_updates_for_v6.17_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/{skx_common,i10nm}: Use scnprintf() for safer buffer handling
EDAC/synopsys: Clear the ECC counters on init
EDAC/ie31200: Add Intel Raptor Lake-HX SoCs support
EDAC/igen6: Add Intel Wildcat Lake SoCs support
EDAC/i10nm: Add Intel Granite Rapids-D support
EDAC/mem_repair: Reduce stack usage in edac_mem_repair_get_desc()
EDAC/igen6: Reduce log level to debug for absent memory controllers
EDAC/ie31200: Document which CPUs correspond to each Raptor Lake-S device ID
EDAC/ie31200: Enable support for Core i5-14600 and i7-14700
ie31200/EDAC: Add Intel Bartlett Lake-S SoCs support
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull stop-machine documentation updates from Paul McKenney:
- Improve kernel-doc function-header comments
- Document preemption and stop_machine() mutual exclusion (Joel
Fernandes)
* tag 'stop-machine.2025.07.23a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
smp: Document preemption and stop_machine() mutual exclusion
stop_machine: Improve kernel-doc function-header comments
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull ratelimit test updates from Paul McKenney:
"Add functional and stress tests:
- Add trivial kunit test for ratelimit
- Make the ratelimit test more reliable (Petr Mladek)
- Add stress test for ratelimit"
* tag 'ratelimit.2025.07.23a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
lib: Add stress test for ratelimit
lib: Make the ratelimit test more reliable
lib: Add trivial kunit test for ratelimit
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull lkmm documentation update from Paul McKenney:
- Add wait_event_cmd() and wait_event_exclusive_cmd() to the list of
wait primitives that provide the needed memory barriers (Håkon
Bugge)
* tag 'lkmm.2025.07.23a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
docs/memory-barriers.txt: Add wait_event_cmd() and wait_event_exclusive_cmd()
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git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc
Pull nolibc updates from Thomas Weißschuh:
"Highlights:
- New supported architectures: SuperH, x32, MIPS n32/n64
- Adopt general kernel architectures names
- Integrate the nolibc selftests into the kselftests framework
- Various fixes and new syscall wrappers
Two non-nolibc changes:
- New arm64 selftest which depends on nolibc changes
- General tools/ cross-compilation bugfix for s390 clang"
* tag 'nolibc-20250724-for-6.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc: (30 commits)
selftests/nolibc: add x32 test configuration
tools/nolibc: define time_t in terms of __kernel_old_time_t
selftests/nolibc: show failed run if test process crashes
tools/nolibc: drop s390 clang target override
tools/build: Fix s390(x) cross-compilation with clang
tools/nolibc: avoid false-positive -Wmaybe-uninitialized through waitpid()
selftests/nolibc: correctly report errors from printf() and friends
selftests/nolibc: create /dev/full when running as PID 1
tools/nolibc: add support for clock_nanosleep() and nanosleep()
kselftest/arm64: Add a test for vfork() with GCS
selftests/nolibc: Add coverage of vfork()
tools/nolibc: Provide vfork()
tools/nolibc: Replace ifdef with if defined() in sys.h
tools/nolibc: add support for SuperH
selftests/nolibc: use file driver for QEMU serial
selftests/nolibc: fix EXTRACONFIG variables ordering
tools/nolibc: MIPS: add support for N64 and N32 ABIs
tools/nolibc: MIPS: drop noreorder option
tools/nolibc: MIPS: drop manual stack pointer alignment
tools/nolibc: MIPS: drop $gp setup
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull generic entry code updates from Thomas Gleixner:
- Split the code into syscall and exception/interrupt parts to ease the
conversion of ARM[64] to the generic entry infrastructure
- Extend syscall user dispatching to support a single intercepted range
instead of the default single non-intercepted range. That allows
monitoring/analysis of a specific executable range, e.g. a library,
and also provides flexibility for sandboxing scenarios
- Cleanup and extend the user dispatch selftest
* tag 'core-entry-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
entry: Split generic entry into generic exception and syscall entry
selftests: Add tests for PR_SYS_DISPATCH_INCLUSIVE_ON
syscall_user_dispatch: Add PR_SYS_DISPATCH_INCLUSIVE_ON
selftests: Fix errno checking in syscall_user_dispatch test
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull VDSO selftest updates from Thomas Gleixner:
- Skip the chacha test when the architecture does not provide the
random infrastructure in the VDSO
- Switch back to a symlink for vdso_standalone_test_x86 to avoid code
duplication.
- Improve code quality and TAP output compliance
* tag 'timers-vdso-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests: vDSO: vdso_standalone_test_x86: Replace source file with symlink
selftests: vDSO: vdso_test_getrandom: Always print TAP header
selftests: vDSO: vdso_test_correctness: Fix -Wstrict-prototypes
selftests: vDSO: Enable -Wall
selftests: vDSO: vdso_config: Avoid -Wunused-variables
selftests: vDSO: vdso_test_getrandom: Avoid -Wunused
selftests: vDSO: vdso_test_getrandom: Drop unused include of linux/compiler.h
selftests: vDSO: clock_getres: Drop unused include of err.h
selftests: vDSO: chacha: Correctly skip test if necessary
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull futex updates from Thomas Gleixner:
- Switch the reference counting to a RCU based per-CPU reference to
address a performance bottleneck vs the single instance rcuref
variant
- Make the futex selftest build on 32-bit architectures which only
support 64-bit time_t, e.g. RISCV-32
- Cleanups and improvements in selftests and futex bench
* tag 'locking-futex-2025-07-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests/futex: Fix spelling mistake "Succeffuly" -> "Successfully"
selftests/futex: Define SYS_futex on 32-bit architectures with 64-bit time_t
perf bench futex: Remove support for IMMUTABLE
selftests/futex: Remove support for IMMUTABLE
futex: Remove support for IMMUTABLE
futex: Make futex_private_hash_get() static
futex: Use RCU-based per-CPU reference counting instead of rcuref_t
selftests/futex: Adapt the private hash test to RCU related changes
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timekeeping and VDSO updates from Thomas Gleixner:
- Introduce support for auxiliary timekeepers
PTP clocks can be disconnected from the universal CLOCK_TAI reality
for various reasons including regularatory requirements for
functional safety redundancy.
The kernel so far only supports a single notion of time, which means
that all clocks are correlated in frequency and only differ by offset
to each other.
Access to non-correlated PTP clocks has been available so far only
through the file descriptor based "POSIX clock IDs", which are
subject to locking and have to go all the way out to the hardware.
The access is not only horribly slow, as it has to go all the way out
to the NIC/PTP hardware, but that also prevents the kernel to read
the time of such clocks e.g. from the network stack, where it is
required for TSN networking both on the transmit and receive side
unless the hardware provides offloading.
The auxiliary clocks provide a mechanism to support arbitrary clocks
which are not correlated to the system clock. This is not restricted
to the PTP use case on purpose as there is no kernel side association
of these clocks to a particular PTP device because that's a pure user
space configuration decision. Having them independent allows to
utilize them for other purposes and also enables them to be tested
without hardware dependencies.
To avoid pointless overhead these clocks have to be enabled
individualy via a new sysfs interface to reduce the overhead to a
single compare in the hotpath if they are enabled at the Kconfig
level at all.
These clocks utilize the existing timekeeping/NTP infrastructures,
which has been made possible over the recent releases by incrementaly
converting these infrastructures over from a single static instance
to a multi-instance pointer based implementation without any
performance regression reported.
The auxiliary clocks provide the same "emulation" of a "correct"
clock as the existing CLOCK_* variants do with an independent
instance of data and provide the same steering mechanism through the
existing sys_clock_adjtime() interface, which has been confirmed to
work by the chronyd(8) maintainer.
That allows to provide lockless kernel internal and VDSO support so
that applications and kernel internal functionalities can access
these clocks without restrictions and at the same performance as the
existing system clocks.
- Avoid double notifications in the adjtimex() syscall. Not a big
issue, but a trivial to avoid latency source.
* tag 'timers-ptp-2025-07-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (39 commits)
vdso/gettimeofday: Add support for auxiliary clocks
vdso/vsyscall: Update auxiliary clock data in the datapage
vdso: Introduce aux_clock_resolution_ns()
vdso/gettimeofday: Introduce vdso_get_timestamp()
vdso/gettimeofday: Introduce vdso_set_timespec()
vdso/gettimeofday: Introduce vdso_clockid_valid()
vdso/gettimeofday: Return bool from clock_gettime() helpers
vdso/gettimeofday: Return bool from clock_getres() helpers
vdso/helpers: Add helpers for seqlocks of single vdso_clock
vdso/vsyscall: Split up __arch_update_vsyscall() into __arch_update_vdso_clock()
vdso/vsyscall: Introduce a helper to fill clock configurations
timekeeping: Remove the temporary CLOCK_AUX workaround
timekeeping: Provide ktime_get_clock_ts64()
timekeeping: Provide interface to control auxiliary clocks
timekeeping: Provide update for auxiliary timekeepers
timekeeping: Provide adjtimex() for auxiliary clocks
timekeeping: Prepare do_adtimex() for auxiliary clocks
timekeeping: Make do_adjtimex() reusable
timekeeping: Add auxiliary clock support to __timekeeping_inject_offset()
timekeeping: Make timekeeping_inject_offset() reusable
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer core updates from Thomas Gleixner:
- Simplify the logic in the timer migration code
- Simplify the clocksource code by utilizing the more modern
cpumask+*() interfaces
* tag 'timers-core-2025-07-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource: Use cpumask_next_wrap() in clocksource_watchdog()
clocksource: Use cpumask_any_but() in clocksource_verify_choose_cpus()
timers/migration: Clean up the loop in tmigr_quick_check()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer cleanups from Thomas Gleixner:
"A treewide cleanup of struct cycle_counter const annotations.
The initial idea of making them const was correct as they were
seperate instances. When they got embedded into larger data
structures, which are even modified by the callback this got moot. The
only reason why this went unnoticed is that the required
container_of() casts the const attribute forcefully away.
Stop pretending that it is const"
* tag 'timers-cleanups-2025-07-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
time/timecounter: Fix the lie that struct cyclecounter is const
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull interrupt chip driver updates from Thomas Gleixner:
- Add support of forced affinity setting to yet offline CPUs for the
MIPS-GIC to ensure that the affinity of per CPU interrupts can be set
during the early bringup phase of a secondary CPU in the hotplug code
before the CPU is set online and interrupts are enabled
- Add support for the MIPS (RISC-V !?!?) P8700 SoC in the ACLINT_SSWI
interrupt chip
- Make the interrupt routing to RISV-V harts specification compliant so
it supports arbitrary hart indices
- Add a command line parameter and related handling to disable the
generic RISCV IMSIC mechanism on platforms which use a trap-emulated
IMSIC. Unfortunatly this is required because there is no mechanism
available to discover this programatically.
- Enable wakeup sources on the Renesas RZV2H driver
- Convert interrupt chip drivers, which use a open coded variant of
msi_create_parent_irq_domain() to use the new functionality
- Convert interrupt chip drivers, which use the old style two level
implementation of MSI support over to the MSI parent mechanism to
prepare for removing at least one of the three PCI/MSI backend
variants.
- The usual cleanups and improvements all over the place
* tag 'irq-drivers-2025-07-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits)
irqchip/renesas-irqc: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
irqchip/renesas-intc-irqpin: Convert to DEFINE_SIMPLE_DEV_PM_OPS()
irqchip/riscv-imsic: Add kernel parameter to disable IPIs
irqchip/gic-v3: Fix GICD_CTLR register naming
irqchip/ls-scfg-msi: Fix NULL dereference in error handling
irqchip/ls-scfg-msi: Switch to use msi_create_parent_irq_domain()
irqchip/armada-370-xp: Switch to msi_create_parent_irq_domain()
irqchip/alpine-msi: Switch to msi_create_parent_irq_domain()
irqchip/alpine-msi: Convert to __free
irqchip/alpine-msi: Convert to lock guards
irqchip/alpine-msi: Clean up whitespace style
irqchip/sg2042-msi: Switch to msi_create_parent_irq_domain()
irqchip/loongson-pch-msi.c: Switch to msi_create_parent_irq_domain()
irqchip/imx-mu-msi: Convert to msi_create_parent_irq_domain() helper
irqchip/riscv-imsic: Convert to msi_create_parent_irq_domain() helper
irqchip/bcm2712-mip: Switch to msi_create_parent_irq_domain()
irqdomain: Add device pointer to irq_domain_info and msi_domain_info
irqchip/renesas-rzv2h: Remove unneeded includes
irqchip/renesas-rzv2h: Enable SKIP_SET_WAKE and MASK_ON_SUSPEND
irqchip/aslint-sswi: Resolve hart index
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull smp updates from Thomas Gleixner:
"A set of updates for SMP function calls:
- Improve locality of smp_call_function_any() by utilizing
sched_numa_find_nth_cpu() instead of picking a random CPU
- Wait for work completion in smp_call_function_many_cond() only when
there was actually work enqueued
- Simplify functions by unutlizing the appropriate cpumask_*()
interfaces
- Trivial cleanups"
* tag 'smp-core-2025-07-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
smp: Wait only if work was enqueued
smp: Defer check for local execution in smp_call_function_many_cond()
smp: Use cpumask_any_but() in smp_call_function_many_cond()
smp: Improve locality in smp_call_function_any()
smp: Fix typo in comment for raw_smp_processor_id()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
- Prevent a interrupt migration related live lock in handle_edge_irq()
If the interrupt affinity is moved to a new target CPU and the
interrupt is currently handled on the previous target CPU for edge
type interrupts the handler might get stuck on the previous target
for a long time, which causes both involved CPUs to waste cycles and
eventually run into a soft-lockup situation.
Solve this by checking whether the interrupt is redirected to a new
target CPU and if the interrupt is handled on that new target CPU,
busy wait for completion instead of masking it and sending the
pending but which would cause the old CPU to re-run the handler and
in the worst case repeating this excercise for a long time.
This only works on architectures which use single CPU interrupt
targets, but that's so far the only ones where this behaviour has
been observed.
- Add a kunit test for interrupt disable depth counts
The nested interrupt disable depth has been an issue in the past
especially vs. free_irq(), interrupt shutdown and CPU hotplug and
their interactions. The test exercises the combinations of these
scenarios and checks for correctness.
* tag 'irq-core-2025-07-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Prevent migration live lock in handle_edge_irq()
genirq: Split up irq_pm_check_wakeup()
genirq: Move irq_wait_for_poll() to call site
genirq: Remove pointless local variable
genirq: Add kunit tests for depth counts
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