Pull tracing updates from Steven Rostedt:

 - Remove a redundant IS_ERR() check

   trace_pipe_open() already checks for IS_ERR() and does it again in
   the return path. Remove the return check.

 - Export seq_buf_putmem_hex() to allow kunit tests against them

   To add Kunit tests on seq_buf_putmem_hex(), it needs to be exported.

 - Replace strcat() and strcpy() with seq_buf() logic

   The code for synthetic events uses a series of strcat() and strcpy()
   which can be error prone. Replace them with seq_buf() logic that does
   all the necessary bound checking.

 - Add a lockdep rcu_is_watching() to trace_##event##_enabled() call

   The trace_##event##_enabled() is a static branch that is true if the
   "event" is enabled. But this can hide bugs if this logic is in a
   location where RCU is disabled and not "watching". It would only
   trigger if lockdep is enabled and the event is enabled.

   Add a "rcu_is_watching()" warning if lockdep is enabled in that
   helper function to trigger regardless if the event is enabled or not.

 - Remove the local variable in the trace_printk() macro

   For name space integrity, remove the _______STR variable in the
   trace_printk() macro for using the sizeof() macro directly.

 - Use guard()s for the trace_recursion_record.c file

 - Fix typo in a comment of eventfs_callback() kerneldoc

 - Use trace_call__##event() in events within trace_##event##_enabled()

   A couple of events are called within an if block guarded by
   trace_##event##_enabled(). That is a static key that is only enabled
   when the event is enabled. The trace_call_##event() calls the
   tracepoint code directly without adding a redundant static key for
   that check.

 - Allow perf to read synthetic events

   Currently, perf does not have the ability to enable a synthetic
   event. If it does, it will either cause a kernel warning or error
   with "No such device". Synthetic events are not much different than
   kprobes and perf can handle fine with a few modifications.

 - Replace printk(KERN_WARNING ...) with pr_warn()

 - Replace krealloc() on an array with krealloc_array()

 - Fix README file path name for synthetic events

 - Change tracing_map tracing_map_array to use a flexible array

   Instead of allocating a separate pointer to hold the pages field of
   tracing_map_array, allocate the pages field as a flexible array when
   allocating the structure.

 - Fold trace_iterator_increment() into trace_find_next_entry_inc()

   The function trace_iterator_increment() was only used by
   trace_find_next_entry_inc(). It's not big enough to be a helper
   function for one user. Fold it into its caller.

 - Make field_var_str field a flexible array of hist_elt_data

   Instead of allocating a separate pointer for the field_var_str array
   of the hist_elt_data structure, allocate it as a flexible array when
   allocating the structure.

 - Disable KCOV for trace_irqsoff.c

   Like trace_preemptirq.c, trace_irqsoff.c has code that will crash
   when KCOV is enabled on ARM. The irqsoff tracing can be called on ARM
   because the irqsoff tracing code can be run from early interrupt code
   and produce coverage unrelated to syscall inputs.

 - Fix warning in __unregister_ftrace_function() called by perf

   Perf calls unregister_ftrace_function() without checking if its
   ftrace_ops has already been unregistered. There's an error path where
   on clean up it will unregister the ftrace_ops even if it wasn't
   registered and causes a warning.

* tag 'trace-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  perf/ftrace: Fix WARNING in __unregister_ftrace_function
  tracing: Disable KCOV instrumentation for trace_irqsoff.o
  tracing: Turn hist_elt_data field_var_str into a flexible array
  tracing: Move trace_iterator_increment() into trace_find_next_entry_inc()
  tracing: Simplify pages allocation for tracing_map logic
  tracing: Fix README path for synthetic_events
  tracing: Use krealloc_array() for trace option array growth
  tracing/branch: Use pr_warn() instead of printk(KERN_WARNING)
  tracing: Allow perf to read synthetic events
  HID: Use trace_call__##name() at guarded tracepoint call sites
  cpufreq: amd-pstate: Use trace_call__##name() at guarded tracepoint call site
  tracefs: Fix typo in a comment of eventfs_callback() kerneldoc
  tracing: Switch trace_recursion_record.c code over to use guard()
  tracing: Remove local variable for argument detection from trace_printk()
  tracepoint: Add lockdep rcu_is_watching() check to trace_##name##_enabled()
  tracing: Bound synthetic-field strings with seq_buf
  seq_buf: Export seq_buf_putmem_hex() and add KUnit tests
  tracing: Remove redundant IS_ERR() check in trace_pipe_open()

Pull x86 cpuid updates from Ingo Molnar:

 - CPUID API updates (Ahmed S. Darwish):
    - Introduce a centralized CPUID parser
    - Introduce a centralized CPUID data model
    - Introduce <asm/cpuid/leaf_types.h>
    - Rename cpuid_leaf()/cpuid_subleaf() APIs
    - treewide: Explicitly include the x86 CPUID headers

 - Update to x86-cpuid-db v3.1 (Maciej Wieczor-Retman)

 - Continued removal of pre-i586 support and related simplifications
   (Ingo Molnar)

 - Add Intel CPU model number for rugged Panther Lake (Tony Luck)

 - Misc fixes, updates and cleanups by Arnd Bergmann, Chao Gao, Lukas
   Bulwahn, Sohil Mehta, Maciej Wieczor-Retman.

* tag 'x86-cpu-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (25 commits)
  x86/cpu: Make CONFIG_X86_CX8 unconditional
  x86/cpu: Remove unused !CONFIG_X86_TSC code
  x86/cpuid: Update bitfields to x86-cpuid-db v3.1
  tools/x86/kcpuid: Update bitfields to x86-cpuid-db v3.1
  x86/cpu: Make CONFIG_X86_TSC unconditional
  MAINTAINERS: Drop obsolete FPU EMULATOR section
  x86/cpu: Fix a F00F bug warning and clean up surrounding code
  x86/cpu: Add Intel CPU model number for rugged Panther Lake
  x86/cpuid: Introduce a centralized CPUID parser
  x86/cpu: Introduce a centralized CPUID data model
  x86/cpuid: Introduce <asm/cpuid/leaf_types.h>
  x86/cpuid: Rename cpuid_leaf()/cpuid_subleaf() APIs
  x86/cpu: Do not include the CPUID API header in asm/processor.h
  Documentation: core-api/cpu_hotplug: Remove stale cpu0_hotplug docs
  x86/cpu, cpufreq: Remove AMD ELAN support
  x86/fpu: Remove the math-emu/ FPU emulation library
  x86/fpu: Remove the 'no387' boot option
  x86/fpu: Remove MATH_EMULATION and related glue code
  treewide: Explicitly include the x86 CPUID headers
  x86/cpu: Remove the CONFIG_X86_INVD_BUG quirk
  ...

Pull x86/msr updates from Ingo Molnar:

 - Large series to reorganize the rdmsr/wrmsr APIs to remove
   32-bit variants and convert to 64-bit variants (Juergen Gross)

 - Fix W=1 warning (HyeongJun An)

* tag 'x86-msr-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip:
  x86/msr: Remove wrmsrl()
  x86/msr: Switch wrmsrl() users to wrmsrq()
  x86/msr: Remove rdmsrl()
  x86/msr: Switch rdmsrl() users to rdmsrq()
  x86/msr: Remove wrmsr_safe_on_cpu()
  x86/msr: Switch wrmsr_safe_on_cpu() users to wrmsrq_safe_on_cpu()
  x86/msr: Remove rdmsr_safe_on_cpu()
  x86/msr: Switch rdmsr_safe_on_cpu() users to rdmsrq_safe_on_cpu()
  x86/msr: Don't use rdmsr_safe_on_cpu() in rdmsrq_safe_on_cpu()
  x86/msr: Remove wrmsr_on_cpu()
  x86/msr: Switch wrmsr_on_cpu() users to wrmsrq_on_cpu()
  x86/msr: Remove rdmsr_on_cpu()
  x86/msr: Switch rdmsr_on_cpu() users to rdmsrq_on_cpu()
  x86/msr: Remove rdmsrl_on_cpu()
  x86/msr: Switch rdmsrl_on_cpu() user to rdmsrq_on_cpu()
  x86/process: Convert rdmsr() to rdmsrq() in arch_post_acpi_subsys_init() to address W=1 warning

Pull NOHZ updates from Thomas Gleixner:

 - Fix a long standing TOCTOU in get_cpu_sleep_time_us()

 - Make the CPU offline NOHZ handling more robust by disabling NOHZ on
   the outgoing CPU early instead of creating unneeded state which needs
   to be undone.

 - Unify idle CPU time accounting instead of having two different
   accounting mechanisms. These two different mechanisms are not really
   independent, but the different properties can in the worst case cause
   that gloabl idle time can be observed going backwards.

 - Consolidate the idle/iowait time retrieval interfaces instead of
   converting back and forth between them.

 - Make idle interrupt time accounting more robust. The original code
   assumes that interrupt time accouting is enabled and therefore stops
   elapsing idle time while an interrupt is handled in NOHZ dyntick
   state. That assumption is not correct as interrupt time accounting
   can be disabled at compile and runtime.

 - Fix an accounting error between dyntick idle time and dyntick idle
   steal time. The stolen time is not accounted and therefore idle time
   becomes inaccurate. The stolen time is now accounted after the fact
   as there is no way to predict the steal time upfront.

* tag 'timers-nohz-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip:
  sched/cputime: Handle dyntick-idle steal time correctly
  sched/cputime: Handle idle irqtime gracefully
  sched/cputime: Provide get_cpu_[idle|iowait]_time_us() off-case
  tick/sched: Consolidate idle time fetching APIs
  tick/sched: Account tickless idle cputime only when tick is stopped
  tick/sched: Remove unused fields
  tick/sched: Move dyntick-idle cputime accounting to cputime code
  tick/sched: Remove nohz disabled special case in cputime fetch
  tick/sched: Unify idle cputime accounting
  s390/time: Prepare to stop elapsing in dynticks-idle
  powerpc/time: Prepare to stop elapsing in dynticks-idle
  sched/cputime: Correctly support generic vtime idle time
  sched/cputime: Remove superfluous and error prone kcpustat_field() parameter
  sched/idle: Handle offlining first in idle loop
  tick/sched: Fix TOCTOU in nohz idle time fetch

Pull driver core updates from Danilo Krummrich:
 "Deferred probe:
   - Fix race where deferred probe timeout work could be permanently
     canceled by using mod_delayed_work()
   - Fix missing jiffies conversion in deferred_probe_extend_timeout()
   - Guard timeout extension with delayed_work_pending() to prevent
     premature firing
   - Use system_percpu_wq instead of the deprecated system_wq
   - Update deferred_probe_timeout documentation

  device:
   - Replace direct struct device bitfield access (can_match, dma_iommu,
     dma_skip_sync, dma_ops_bypass, state_synced, dma_coherent,
     of_node_reused, offline, offline_disabled) with flag-based
     accessors using bit operations
   - Reject devices with unregistered buses
   - Delete unused DEVICE_ATTR_PREALLOC()
   - Add low-level device attribute macros with const show/store
     callbacks, allowing device attributes to reside in read-only memory
   - Move core device attributes to read-only memory
   - Constify group array pointers in driver_add_groups() /
     driver_remove_groups(), struct bus_type, and struct device_driver

  device property:
   - Fix fwnode reference leak in fwnode_graph_get_endpoint_by_id()
   - Initialize all fields of fwnode_handle in fwnode_init()
   - Provide swnode_get()/swnode_put() wrappers around kobject_get/put()
   - Allow passing struct software_node_ref_args pointers directly to
     PROPERTY_ENTRY_REF()

  driver_override:
   - Migrate amba, cdx, vmbus, and rpmsg to the generic driver_override
     infrastructure, fixing a UAF from unsynchronized access to
     driver_override in bus match() callbacks
   - Remove the now-unused driver_set_override()

  firmware loader:
   - Fix recursive lock deadlock in device_cache_fw_images() when async
     work falls back to synchronous execution
   - Fix device reference leak in firmware_upload_register()

  platform:
   - Pass KBUILD_MODNAME through the platform driver registration macro
     to create module symlinks in sysfs for built-in drivers; move
     module_kset initialization to a pure_initcall and tegra cbb
     registration to core_initcall to ensure correct ordering
   - Pass THIS_MODULE implicitly through a coresight_init_driver() macro

  sysfs:
   - Upgrade OOB write detection in sysfs_kf_seq_show() from printk to
     WARN
   - Add return value clamping to sysfs_kf_read()

  Rust:
   - ACPI:

     Fix missing match data for PRP0001 by exporting
     acpi_of_match_device()

   - Auxiliary:

     Replace drvdata() with dedicated registration data on
     auxiliary_device. drvdata() exposed the driver's bus device private
     data beyond the driver's own scope, creating ordering constraints
     and forcing the data to outlive all registrations that access it.
     Registration data is instead scoped structurally to the
     Registration object, making lifecycle ordering enforced by
     construction rather than convention.

   - Rust-native device driver lifetimes (HRT):

     Allow Rust device drivers to carry a lifetime parameter on their
     bus device private data, tied to the device binding scope -- the
     interval during which a bus device is bound to a driver. Device
     resources like pci::Bar<'a> and IoMem<'a> can be stored directly in
     the driver's bus device private data with a lifetime bounded by the
     binding scope, so the compiler enforces at build time that they do
     not outlive the binding. This removes Devres indirection from every
     access site and eliminates try_access() failure paths in
     destructors.

     Bus driver traits use a Generic Associated Type (GAT) Data<'bound>
     to introduce the lifetime on the private data, rather than
     parameterizing the Driver trait itself. Auxiliary registration
     data, where the lifetime is not introduced by a trait callback but
     must be threaded through Registration, uses the ForLt trait (a
     type-level abstraction for types generic over a lifetime).

  Misc:
   - Fix DT overlayed devices not probing by reverting the broken
     treewide overlay fix and re-running fw_devlink consumer pickup when
     an overlay is applied to a bound device
   - Use root_device_register() for faux bus root device; add sanity
     check for failed bus init
   - Fix dev_has_sync_state() data race with READ_ONCE() and move it to
     base.h
   - Avoid spurious device_links warning when removing a device while
     its supplier is unbinding
   - Switch ISA bus to dynamic root device
   - Fix suspicious RCU usage in kernfs_put()
   - Remove devcoredump exit callback
   - Constify devfreq_event_class"

* tag 'driver-core-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/driver-core/driver-core: (81 commits)
  software node: allow passing reference args to PROPERTY_ENTRY_REF()
  driver core: platform: set mod_name in driver registration
  coresight: pass THIS_MODULE implicitly through a macro
  kernel: param: initialize module_kset in a pure_initcall
  soc/tegra: cbb: Move driver registration from pure_initcall to core_initcall
  firmware_loader: Fix recursive lock in device_cache_fw_images()
  driver core: Use system_percpu_wq instead of system_wq
  driver core: remove driver_set_override()
  rpmsg: use generic driver_override infrastructure
  Drivers: hv: vmbus: use generic driver_override infrastructure
  cdx: use generic driver_override infrastructure
  amba: use generic driver_override infrastructure
  rust: devres: add 'static bound to Devres<T>
  samples: rust: rust_driver_auxiliary: showcase lifetime-bound registration data
  rust: auxiliary: generalize Registration over ForLt
  rust: types: add `ForLt` trait for higher-ranked lifetime support
  gpu: nova-core: separate driver type from driver data
  samples: rust: rust_driver_pci: use HRT lifetime for Bar
  rust: io: make IoMem and ExclusiveIoMem lifetime-parameterized
  rust: pci: make Bar lifetime-parameterized
  ...

Merge cpufreq updates for 7.2:

 - Fix a race between cpufreq suspend and CPU hotplug during system
   shutdown (Tianxiang Chen)

 - Avoid redundant target() calls for unchanged limits and fix a typo
   in a comment in the cpufreq core (Viresh Kumar)

 - Fix concurrency issues related to sysfs attributes access that affect
   cpufreq governors using the common governor code (Zhongqiu Han)

 - Simplify frequency limit handling in the conservative cpufreq
   governor (Lifeng Zheng)

 - Fix descriptions of the conservative governor freq_step tunable and
   the ondemand governor sampling_down_factor tunable in the cpufreq
   documentation (Pengjie Zhang)

 - Fix use-after-free and double free during _OSC evaluation in the PCC
   cpufreq driver (Yuho Choi)

 - Rework the handling of policy min and max frequency values in the
   cpufreq core to allow drivers to specify special initial values for
   the scaling_min_freq and scaling_max_freq sysfs attributes (Pierre
   Gondois)

 - Add cpufreq scaling support for Qualcomm Shikra SoC (Taniya Das,
   Imran Shaik).

 - Improve the warning message on HWP-disabled hybrid processors printed
   by the intel_pstate driver and sync policy->cur during CPU offline in
   it (Yohei Kojima, Fushuai Wang)

 - Drop cpufreq support for AMD Elan SC4* (Sean Young)

 - Minor fixes for cpufreq drivers (Krzysztof Kozlowski, Akashdeep Kaur,
   Hans Zhang, Guangshuo Li, Xueqin Luo)

 - Clean up dead dependencies on X86 in the cpufreq Kconfig (Julian
   Braha)

* pm-cpufreq: (25 commits)
  cpufreq: Use policy->min/max init as QoS request
  cpufreq: Remove driver default policy->min/max init
  cpufreq: Set default policy->min/max values for all drivers
  cpufreq: Extract cpufreq_policy_init_qos() function
  cpufreq: Documentation: fix conservative governor freq_step description
  cpufreq: ti: Add EPROBE_DEFER for K3 SoCs
  cpufreq: qcom: Add cpufreq scaling support for Qualcomm Shikra SoC
  dt-bindings: cpufreq: Document Qualcomm Shikra SoC EPSS
  cpufreq: governor: Fix stale prev_cpu_nice spike when enabling ignore_nice_load
  cpufreq: governor: Fix data races on per-CPU idle/nice baselines
  cpufreq: intel_pstate: Improve warning message on HWP-disabled hybrid CPUs
  cpufreq: elanfreq: Drop support for AMD Elan SC4*
  cpufreq: clean up dead dependencies on X86 in Kconfig
  cpufreq: conservative: Simplify frequency limit handling
  cpufreq: Avoid redundant target() calls for unchanged limits
  cpufreq: Fix typo in comment
  cpufreq: intel_pstate: Sync policy->cur during CPU offline
  cpufreq: Documentation: fix sampling_down_factor range
  cpufreq: Fix hotplug-suspend race during reboot
  cpufreq: pcc: fix use-after-free and double free in _OSC evaluation
  ...

Modify cpufreq_policy_init_qos() introduced previously to use
policy->min/max set in the driver .init() callback as the initial
values for the policy min/max frequency QoS requests, respectively,
so long as they are different from 0 (which means that they have
been updated by the driver). Update the documentation in accordance
with that code change.

This only affects the following drivers:

 - gx-suspmod (min)
 - cppc-cpufreq (min)
 - longrun (min/max)

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
[ rjw: Changelog rewrite ]
Link: https://patch.msgid.link/20260528090913.2759118-5-pierre.gondois@arm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Prior to commit 521223d8b3ec ("cpufreq: Fix initialization of min and
max frequency QoS requests"), drivers were setting policy->min/max and
these values were used as initial policy QoS constraints.

After the above commit, these values are only used temporarily, as
cpufreq_set_policy() ultimately overrides them through:

cpufreq_policy_online()
\-cpufreq_init_policy()
  \-cpufreq_set_policy()
    \-/* Set policy->min/max */

A subsequent change will restore the previous behavior allowing
drivers to request special min/max QoS frequencies instead of
FREQ_QOS_MIN_DEFAULT_VALUE and FREQ_QOS_MAX_DEFAULT_VALUE, respectively,
if desired. For instance, the CPPC driver wants to advertise the lowest
non-linear frequency that should be used as the initial minimum
frequency QoS request.

However, for this purpose, all drivers setting policy->min/max to
policy->cpuinfo.min/max_freq, respectively, need to be updated so
their initial policy->min/max settings don't limit the frequency
scaling unnecessarily going forward (which would defeat the purpose
of commit 521223d8b3ec), so do that.

This does not actually alter the observed behavior of all of
the drivers in question because setting policy->min/max to
policy->cpuinfo.min/max_freq, respectively, is not necessary or
even useful any more after a previous change ("cpufreq: Set default
policy->min/max values for all drivers").

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Acked-by: Jie Zhan <zhanjie9@hisilicon.com>
[ rjw: Changelog rewrite ]
Link: https://patch.msgid.link/20260528090913.2759118-4-pierre.gondois@arm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Some drivers set policy->min/max in their .init() callback, but
cpufreq_set_policy() will ultimately override them through:

cpufreq_policy_online()
\-cpufreq_init_policy()
  \-cpufreq_set_policy()
    \-/* Set policy->min/max */

Thus the policy min/max values set by the drivers are only temporary.

There is an exception if CPUFREQ_NEED_INITIAL_FREQ_CHECK is set and
cpufreq_policy_online() calls __cpufreq_driver_target() which invokes
cpufreq_driver->target().

To prepare for a subsequent change that will remove all initialization
of policy->min/max in driver .init() callbacks if the min/max value is
equal to the corresponding cpuinfo.min/max_freq, set default
policy->min/max values in the core for all drivers.

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Jie Zhan <zhanjie9@hisilicon.com>
[ rjw: Edits of the new comment and changelog ]
Link: https://patch.msgid.link/20260528090913.2759118-3-pierre.gondois@arm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Extract the QoS-related logic from cpufreq_policy_online()
to make that function shorter/simpler.

The logic is placed in cpufreq_policy_init_qos() and is
now executed right after the following calls:

 - cpufreq_driver->init()
 - cpufreq_table_validate_and_sort()

This facilitats subsequent changes that will, in
cpufreq_policy_init_qos():

 - Set a default policy->min/max value for all policies.
 - Use the policy->min/max values set by drivers as initial request
   values for policy frequency QoS requests.

No functional change.

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com>
Reviewed-by: Jie Zhan <zhanjie9@hisilicon.com>
[ rjw: Changelog edits ]
Link: https://patch.msgid.link/20260528090913.2759118-2-pierre.gondois@arm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>