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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance event updates from Ingo Molnar:
"x86 PMU driver updates:
- Add support for the core PMU for Intel Diamond Rapids (DMR) CPUs
(Dapeng Mi)
Compared to previous iterations of the Intel PMU code, there's been
a lot of changes, which center around three main areas:
- Introduce the OFF-MODULE RESPONSE (OMR) facility to replace the
Off-Core Response (OCR) facility
- New PEBS data source encoding layout
- Support the new "RDPMC user disable" feature
- Likewise, a large series adds uncore PMU support for Intel Diamond
Rapids (DMR) CPUs (Zide Chen)
This centers around these four main areas:
- DMR may have two Integrated I/O and Memory Hub (IMH) dies,
separate from the compute tile (CBB) dies. Each CBB and each IMH
die has its own discovery domain.
- Unlike prior CPUs that retrieve the global discovery table
portal exclusively via PCI or MSR, DMR uses PCI for IMH PMON
discovery and MSR for CBB PMON discovery.
- DMR introduces several new PMON types: SCA, HAMVF, D2D_ULA, UBR,
PCIE4, CRS, CPC, ITC, OTC, CMS, and PCIE6.
- IIO free-running counters in DMR are MMIO-based, unlike SPR.
- Also add support for Add missing PMON units for Intel Panther Lake,
and support Nova Lake (NVL), which largely maps to Panther Lake.
(Zide Chen)
- KVM integration: Add support for mediated vPMUs (by Kan Liang and
Sean Christopherson, with fixes and cleanups by Peter Zijlstra,
Sandipan Das and Mingwei Zhang)
- Add Intel cstate driver to support for Wildcat Lake (WCL) CPUs,
which are a low-power variant of Panther Lake (Zide Chen)
- Add core, cstate and MSR PMU support for the Airmont NP Intel CPU
(aka MaxLinear Lightning Mountain), which maps to the existing
Airmont code (Martin Schiller)
Performance enhancements:
- Speed up kexec shutdown by avoiding unnecessary cross CPU calls
(Jan H. Schönherr)
- Fix slow perf_event_task_exit() with LBR callstacks (Namhyung Kim)
User-space stack unwinding support:
- Various cleanups and refactorings in preparation to generalize the
unwinding code for other architectures (Jens Remus)
Uprobes updates:
- Transition from kmap_atomic to kmap_local_page (Keke Ming)
- Fix incorrect lockdep condition in filter_chain() (Breno Leitao)
- Fix XOL allocation failure for 32-bit tasks (Oleg Nesterov)
Misc fixes and cleanups:
- s390: Remove kvm_types.h from Kbuild (Randy Dunlap)
- x86/intel/uncore: Convert comma to semicolon (Chen Ni)
- x86/uncore: Clean up const mismatch (Greg Kroah-Hartman)
- x86/ibs: Fix typo in dc_l2tlb_miss comment (Xiang-Bin Shi)"
* tag 'perf-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
s390: remove kvm_types.h from Kbuild
uprobes: Fix incorrect lockdep condition in filter_chain()
x86/ibs: Fix typo in dc_l2tlb_miss comment
x86/uprobes: Fix XOL allocation failure for 32-bit tasks
perf/x86/intel/uncore: Convert comma to semicolon
perf/x86/intel: Add support for rdpmc user disable feature
perf/x86: Use macros to replace magic numbers in attr_rdpmc
perf/x86/intel: Add core PMU support for Novalake
perf/x86/intel: Add support for PEBS memory auxiliary info field in NVL
perf/x86/intel: Add core PMU support for DMR
perf/x86/intel: Add support for PEBS memory auxiliary info field in DMR
perf/x86/intel: Support the 4 new OMR MSRs introduced in DMR and NVL
perf/core: Fix slow perf_event_task_exit() with LBR callstacks
perf/core: Speed up kexec shutdown by avoiding unnecessary cross CPU calls
uprobes: use kmap_local_page() for temporary page mappings
arm/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
mips/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
arm64/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
riscv/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol()
perf/x86/intel/uncore: Add Nova Lake support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- Add '__rust_helper' annotation to the C helpers
This is needed to inline these helpers into Rust code
- Remove imports available via the prelude, treewide
This was possible thanks to a new lint in Klint that Gary has
implemented -- more Klint-related changes, including initial
upstream support, are coming
- Deduplicate pin-init flags
'kernel' crate:
- Add support for calling a function exactly once with the new
'do_once_lite!' macro (and 'OnceLite' type)
Based on this, add 'pr_*_once!' macros to print only once
- Add 'impl_flags!' macro for defining common bitflags operations:
impl_flags!(
/// Represents multiple permissions.
#[derive(Debug, Clone, Default, Copy, PartialEq, Eq)]
pub struct Permissions(u32);
/// Represents a single permission.
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub enum Permission {
/// Read permission.
Read = 1 << 0,
/// Write permission.
Write = 1 << 1,
/// Execute permission.
Execute = 1 << 2,
}
);
let mut f: Permissions = Permission::Read | Permission::Write;
assert!(f.contains(Permission::Read));
assert!(!f.contains(Permission::Execute));
f |= Permission::Execute;
assert!(f.contains(Permission::Execute));
let f2: Permissions = Permission::Write | Permission::Execute;
assert!((f ^ f2).contains(Permission::Read));
assert!(!(f ^ f2).contains(Permission::Write));
- 'bug' module: support 'CONFIG_DEBUG_BUGVERBOSE_DETAILED' in the
'warn_on!' macro in order to show the evaluated condition alongside
the file path:
------------[ cut here ]------------
WARNING: [val == 1] linux/samples/rust/rust_minimal.rs:27 at ...
Modules linked in: rust_minimal(+)
- Add safety module with 'unsafe_precondition_assert!' macro,
currently a wrapper for 'debug_assert!', intended to mark the
validation of safety preconditions where possible:
/// # Safety
///
/// The caller must ensure that `index` is less than `N`.
unsafe fn set_unchecked(&mut self, index: usize, value: T) {
unsafe_precondition_assert!(
index < N,
"set_unchecked() requires index ({index}) < N ({N})"
);
...
}
- Add instructions to 'build_assert!' documentation requesting to
always inline functions when used with function arguments
- 'ptr' module: replace 'build_assert!' with a 'const' one
- 'rbtree' module: reduce unsafe blocks on pointer derefs
- 'transmute' module: implement 'FromBytes' and 'AsBytes' for
inhabited ZSTs, and use it in Nova
- More treewide replacements of 'c_str!' with C string literals
'macros' crate:
- Rewrite most procedural macros ('module!', 'concat_idents!',
'#[export]', '#[vtable]', '#[kunit_tests]') to use the 'syn'
parsing library which we introduced last cycle, with better
diagnostics
This also allows to support '#[cfg]' properly in the '#[vtable]'
macro, to support arbitrary types in 'module!' macro (not just an
identifier) and to remove several custom parsing helpers we had
- Use 'quote!' from the recently vendored 'quote' library and remove
our custom one
The vendored one also allows us to avoid quoting '"' and '{}'
inside the template anymore and editors can now highlight it. In
addition, it improves robustness as it eliminates the need for
string quoting and escaping
- Use 'pin_init::zeroed()' to simplify KUnit code
'pin-init' crate:
- Rewrite all procedural macros ('[pin_]init!', '#[pin_data]',
'#[pinned_drop]', 'derive([Maybe]Zeroable)') to use the 'syn'
parsing library which we introduced last cycle, with better
diagnostics
- Implement 'InPlaceWrite' for '&'static mut MaybeUninit<T>'. This
enables users to use external allocation mechanisms such as
'static_cell'
- Support tuple structs in 'derive([Maybe]Zeroable)'
- Support attributes on fields in '[pin_]init!' (such as
'#[cfg(...)]')
- Add a '#[default_error(<type>)]' attribute to '[pin_]init!' to
override the default error (when no '? Error' is specified)
- Support packed structs in '[pin_]init!' with
'#[disable_initialized_field_access]'
- Remove 'try_[pin_]init!' in favor of merging their feature with
'[pin_]init!'. Update the kernel's own 'try_[pin_]init!' macros to
use the 'default_error' attribute
- Correct 'T: Sized' bounds to 'T: ?Sized' in the generated
'PinnedDrop' check by '#[pin_data]'
Documentation:
- Conclude the Rust experiment
MAINTAINERS:
- Add "RUST [RUST-ANALYZER]" entry for the rust-analyzer support.
Tamir and Jesung will take care of it. They have both been active
around it for a while. The new tree will flow through the Rust one
- Add Gary as maintainer for "RUST [PIN-INIT]"
- Update Boqun and Tamir emails to their kernel.org accounts
And a few other cleanups and improvements"
* tag 'rust-6.20-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (59 commits)
rust: safety: introduce `unsafe_precondition_assert!` macro
rust: add `impl_flags!` macro for defining common bitflag operations
rust: print: Add pr_*_once macros
rust: bug: Support DEBUG_BUGVERBOSE_DETAILED option
rust: print: Add support for calling a function exactly once
rust: kbuild: deduplicate pin-init flags
gpu: nova-core: remove imports available via prelude
rust: clk: replace `kernel::c_str!` with C-Strings
MAINTAINERS: Update my email address to @kernel.org
rust: macros: support `#[cfg]` properly in `#[vtable]` macro.
rust: kunit: use `pin_init::zeroed` instead of custom null value
rust: macros: rearrange `#[doc(hidden)]` in `module!` macro
rust: macros: allow arbitrary types to be used in `module!` macro
rust: macros: convert `#[kunit_tests]` macro to use `syn`
rust: macros: convert `concat_idents!` to use `syn`
rust: macros: convert `#[export]` to use `syn`
rust: macros: use `quote!` for `module!` macro
rust: macros: use `syn` to parse `module!` macro
rust: macros: convert `#[vtable]` macro to use `syn`
rust: macros: use `quote!` from vendored crate
...
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git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Alexei Starovoitov:
- Support associating BPF program with struct_ops (Amery Hung)
- Switch BPF local storage to rqspinlock and remove recursion detection
counters which were causing false positives (Amery Hung)
- Fix live registers marking for indirect jumps (Anton Protopopov)
- Introduce execution context detection BPF helpers (Changwoo Min)
- Improve verifier precision for 32bit sign extension pattern
(Cupertino Miranda)
- Optimize BTF type lookup by sorting vmlinux BTF and doing binary
search (Donglin Peng)
- Allow states pruning for misc/invalid slots in iterator loops (Eduard
Zingerman)
- In preparation for ASAN support in BPF arenas teach libbpf to move
global BPF variables to the end of the region and enable arena kfuncs
while holding locks (Emil Tsalapatis)
- Introduce support for implicit arguments in kfuncs and migrate a
number of them to new API. This is a prerequisite for cgroup
sub-schedulers in sched-ext (Ihor Solodrai)
- Fix incorrect copied_seq calculation in sockmap (Jiayuan Chen)
- Fix ORC stack unwind from kprobe_multi (Jiri Olsa)
- Speed up fentry attach by using single ftrace direct ops in BPF
trampolines (Jiri Olsa)
- Require frozen map for calculating map hash (KP Singh)
- Fix lock entry creation in TAS fallback in rqspinlock (Kumar
Kartikeya Dwivedi)
- Allow user space to select cpu in lookup/update operations on per-cpu
array and hash maps (Leon Hwang)
- Make kfuncs return trusted pointers by default (Matt Bobrowski)
- Introduce "fsession" support where single BPF program is executed
upon entry and exit from traced kernel function (Menglong Dong)
- Allow bpf_timer and bpf_wq use in all programs types (Mykyta
Yatsenko, Andrii Nakryiko, Kumar Kartikeya Dwivedi, Alexei
Starovoitov)
- Make KF_TRUSTED_ARGS the default for all kfuncs and clean up their
definition across the tree (Puranjay Mohan)
- Allow BPF arena calls from non-sleepable context (Puranjay Mohan)
- Improve register id comparison logic in the verifier and extend
linked registers with negative offsets (Puranjay Mohan)
- In preparation for BPF-OOM introduce kfuncs to access memcg events
(Roman Gushchin)
- Use CFI compatible destructor kfunc type (Sami Tolvanen)
- Add bitwise tracking for BPF_END in the verifier (Tianci Cao)
- Add range tracking for BPF_DIV and BPF_MOD in the verifier (Yazhou
Tang)
- Make BPF selftests work with 64k page size (Yonghong Song)
* tag 'bpf-next-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (268 commits)
selftests/bpf: Fix outdated test on storage->smap
selftests/bpf: Choose another percpu variable in bpf for btf_dump test
selftests/bpf: Remove test_task_storage_map_stress_lookup
selftests/bpf: Update task_local_storage/task_storage_nodeadlock test
selftests/bpf: Update task_local_storage/recursion test
selftests/bpf: Update sk_storage_omem_uncharge test
bpf: Switch to bpf_selem_unlink_nofail in bpf_local_storage_{map_free, destroy}
bpf: Support lockless unlink when freeing map or local storage
bpf: Prepare for bpf_selem_unlink_nofail()
bpf: Remove unused percpu counter from bpf_local_storage_map_free
bpf: Remove cgroup local storage percpu counter
bpf: Remove task local storage percpu counter
bpf: Change local_storage->lock and b->lock to rqspinlock
bpf: Convert bpf_selem_unlink to failable
bpf: Convert bpf_selem_link_map to failable
bpf: Convert bpf_selem_unlink_map to failable
bpf: Select bpf_local_storage_map_bucket based on bpf_local_storage
selftests/xsk: fix number of Tx frags in invalid packet
selftests/xsk: properly handle batch ending in the middle of a packet
bpf: Prevent reentrance into call_rcu_tasks_trace()
...
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We need to fix some commits that went into the final release.
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git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull keys update from David Howells:
"This adds support for ML-DSA signatures in X.509 certificates and
PKCS#7/CMS messages, thereby allowing this algorithm to be used for
signing modules, kexec'able binaries, wifi regulatory data, etc..
This requires OpenSSL-3.5 at a minimum and preferably OpenSSL-4 (so
that it can avoid the use of CMS signedAttrs - but that version is not
cut yet). certs/Kconfig does a check to hide the signing options if
OpenSSL does not list the algorithm as being available"
* tag 'keys-next-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
pkcs7: Change a pr_warn() to pr_warn_once()
pkcs7: Allow authenticatedAttributes for ML-DSA
modsign: Enable ML-DSA module signing
pkcs7, x509: Add ML-DSA support
pkcs7: Allow the signing algo to do whatever digestion it wants itself
pkcs7, x509: Rename ->digest to ->m
x509: Separately calculate sha256 for blacklist
crypto: Add ML-DSA crypto_sig support
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kmalloc_obj updates from Kees Cook:
"Introduce the kmalloc_obj* family of APIs for switching to type-based
kmalloc allocations, away from purely size-based allocations.
Discussed on lkml, with you, and at Linux Plumbers. It's been in -next
for the entire dev cycle.
Before the merge window closes, I'd like to send the treewide
change (generated from the Coccinelle script included here), which
mechanically converts almost 20k callsites from kmalloc* to
kmalloc_obj*:
8007 files changed, 19980 insertions(+), 20838 deletions(-)
This change needed fixes for mismatched types (since now the return
type from allocations is a pointer to the requested type, not "void
*"), and I've been fixing these over the last 4 releases.
These fixes have mostly been trivial mismatches with const qualifiers
or accidentally identical sizes (e.g. same object size: "struct kvec"
vs "struct iovec", or differing pointers to pointers), but I did catch
one case of too-small allocation.
Summary:
- Introduce kmalloc_obj*() family of type-based allocator APIs
- checkpatch: Suggest kmalloc_obj family for sizeof allocations
- coccinelle: Add kmalloc_objs conversion script"
* tag 'kmalloc_obj-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
coccinelle: Add kmalloc_objs conversion script
slab: Introduce kmalloc_flex() and family
compiler_types: Introduce __flex_counter() and family
checkpatch: Suggest kmalloc_obj family for sizeof allocations
slab: Introduce kmalloc_obj() and family
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
"API:
- Fix race condition in hwrng core by using RCU
Algorithms:
- Allow authenc(sha224,rfc3686) in fips mode
- Add test vectors for authenc(hmac(sha384),cbc(aes))
- Add test vectors for authenc(hmac(sha224),cbc(aes))
- Add test vectors for authenc(hmac(md5),cbc(des3_ede))
- Add lz4 support in hisi_zip
- Only allow clear key use during self-test in s390/{phmac,paes}
Drivers:
- Set rng quality to 900 in airoha
- Add gcm(aes) support for AMD/Xilinx Versal device
- Allow tfms to share device in hisilicon/trng"
* tag 'v7.0-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (100 commits)
crypto: img-hash - Use unregister_ahashes in img_{un}register_algs
crypto: testmgr - Add test vectors for authenc(hmac(md5),cbc(des3_ede))
crypto: cesa - Simplify return statement in mv_cesa_dequeue_req_locked
crypto: testmgr - Add test vectors for authenc(hmac(sha224),cbc(aes))
crypto: testmgr - Add test vectors for authenc(hmac(sha384),cbc(aes))
hwrng: core - use RCU and work_struct to fix race condition
crypto: starfive - Fix memory leak in starfive_aes_aead_do_one_req()
crypto: xilinx - Fix inconsistant indentation
crypto: rng - Use unregister_rngs in register_rngs
crypto: atmel - Use unregister_{aeads,ahashes,skciphers}
hwrng: optee - simplify OP-TEE context match
crypto: ccp - Add sysfs attribute for boot integrity
dt-bindings: crypto: atmel,at91sam9g46-sha: add microchip,lan9691-sha
dt-bindings: crypto: atmel,at91sam9g46-aes: add microchip,lan9691-aes
dt-bindings: crypto: qcom,inline-crypto-engine: document the Milos ICE
crypto: caam - fix netdev memory leak in dpaa2_caam_probe
crypto: hisilicon/qm - increase wait time for mailbox
crypto: hisilicon/qm - obtain the mailbox configuration at one time
crypto: hisilicon/qm - remove unnecessary code in qm_mb_write()
crypto: hisilicon/qm - move the barrier before writing to the mailbox register
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library updates from Eric Biggers:
- Add support for verifying ML-DSA signatures.
ML-DSA (Module-Lattice-Based Digital Signature Algorithm) is a
recently-standardized post-quantum (quantum-resistant) signature
algorithm. It was known as Dilithium pre-standardization.
The first use case in the kernel will be module signing. But there
are also other users of RSA and ECDSA signatures in the kernel that
might want to upgrade to ML-DSA eventually.
- Improve the AES library:
- Make the AES key expansion and single block encryption and
decryption functions use the architecture-optimized AES code.
Enable these optimizations by default.
- Support preparing an AES key for encryption-only, using about
half as much memory as a bidirectional key.
- Replace the existing two generic implementations of AES with a
single one.
- Simplify how Adiantum message hashing is implemented. Remove the
"nhpoly1305" crypto_shash in favor of direct lib/crypto/ support for
NH hashing, and enable optimizations by default.
* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (53 commits)
lib/crypto: mldsa: Clarify the documentation for mldsa_verify() slightly
lib/crypto: aes: Drop 'volatile' from aes_sbox and aes_inv_sbox
lib/crypto: aes: Remove old AES en/decryption functions
lib/crypto: aesgcm: Use new AES library API
lib/crypto: aescfb: Use new AES library API
crypto: omap - Use new AES library API
crypto: inside-secure - Use new AES library API
crypto: drbg - Use new AES library API
crypto: crypto4xx - Use new AES library API
crypto: chelsio - Use new AES library API
crypto: ccp - Use new AES library API
crypto: x86/aes-gcm - Use new AES library API
crypto: arm64/ghash - Use new AES library API
crypto: arm/ghash - Use new AES library API
staging: rtl8723bs: core: Use new AES library API
net: phy: mscc: macsec: Use new AES library API
chelsio: Use new AES library API
Bluetooth: SMP: Use new AES library API
crypto: x86/aes - Remove the superseded AES-NI crypto_cipher
lib/crypto: x86/aes: Add AES-NI optimization
...
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For benchmarking or debugging purpose, we usually want to control SMT
via boot parameter and sysfs knobs. So add HOTPLUG_SMT implementation.
1. Boot parameters:
nosmt: Disable SMT, can be enabled via sysfs knobs.
nosmt=force: Disable SMT, cannot be enabled via sysfs knobs.
2. Runtime sysfs controls:
Write "on", "off", "forceoff" or the number of SMT threads (1, 2, ...)
to /sys/devices/system/cpu/smt/control.
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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Reference the common PHY properties so RX and TX SerDes lane polarity
of the SGMII/1000Base-X/2500Base-X port can be configured.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/f556ef8be75e37a2f864b9d905a78962bbe76d18.1769916962.git.daniel@makrotopia.org
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add compatible strings for PMM8654AU power key and resin support.
These blocks are compatible with PMK8350, so use that as the
fallback.
Signed-off-by: Rakesh Kota <rakesh.kota@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260209-add_pwrkey_and_resin-v2-2-f944d87b9a93@oss.qualcomm.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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Pull documentation updates from Jonathan Corbet:
"A slightly calmer cycle for docs this time around, though there is
still a fair amount going on, including:
- Some signs of life on the long-moribund Japanese translation
- Documentation on policies around the use of generative tools for
patch submissions, and a separate document intended for consumption
by generative tools
- The completion of the move of the documentation tools to
tools/docs. For now we're leaving a /scripts/kernel-doc symlink
behind to avoid breaking scripts
- Ongoing build-system work includes the incorporation of
documentation in Python code, better support for documenting
variables, and lots of improvements and fixes
- Automatic linking of man-page references -- cat(1), for example --
to the online pages in the HTML build
...and the usual array of typo fixes and such"
* tag 'docs-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux: (107 commits)
doc: development-process: add notice on testing
tools: sphinx-build-wrapper: improve its help message
docs: sphinx-build-wrapper: allow -v override -q
docs: kdoc: Fix pdfdocs build for tools
docs: ja_JP: process: translate 'Obtain a current source tree'
docs: fix 're-use' -> 'reuse' in documentation
docs: ioctl-number: fix a typo in ioctl-number.rst
docs: filesystems: ensure proc pid substitutable is complete
docs: automarkup.py: Skip common English words as C identifiers
Documentation: use a source-read extension for the index link boilerplate
docs: parse_features: make documentation more consistent
docs: add parse_features module documentation
docs: jobserver: do some documentation improvements
docs: add jobserver module documentation
docs: kabi: helpers: add documentation for each "enum" value
docs: kabi: helpers: add helper for debug bits 7 and 8
docs: kabi: system_symbols: end docstring phrases with a dot
docs: python: abi_regex: do some improvements at documentation
docs: python: abi_parser: do some improvements at documentation
docs: add kabi modules documentation
...
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- fix running as Xen PVH guest in 32-bit mode without PAE
- fix PV device handling for suspend/resume when running as
a Xen guest
- clean up workqueue usage
- fix the Xen balloon driver for PVH dom0
- introduce the possibility to use hypercalls for console
messages in unprivileged guests
- enable Xen dom0 use of virtio devices in nested virtualization
setups
- simplify the xen-mcelog driver
* tag 'for-linus-7.0-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xenbus: Rename helpers to freeze/thaw/restore
xenbus: Use .freeze/.thaw to handle xenbus devices
xen/mcelog: simplify MCE_GETCLEAR_FLAGS using xchg()
xen/balloon: improve accuracy of initial balloon target for dom0
Partial revert "x86/xen: fix balloon target initialization for PVH dom0"
xen: introduce xen_console_io option
xen/virtio: Don't use grant-dma-ops when running as Dom0
x86/xen/pvh: Enable PAE mode for 32-bit guest only when CONFIG_X86_PAE is set
xen: privcmd: WQ_PERCPU added to alloc_workqueue users
xen/events: replace use of system_wq with system_percpu_wq
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"There's a little less than normal, probably due to LPC & Christmas/New
Year meaning that a few series weren't quite ready or reviewed in
time. It's still useful across the board, despite the only real
feature being support for the LS64 feature enabling 64-byte atomic
accesses to endpoints that support it.
ACPI:
- Add interrupt signalling support to the AGDI handler
- Add Catalin and myself to the arm64 ACPI MAINTAINERS entry
CPU features:
- Drop Kconfig options for PAN and LSE (these are detected at runtime)
- Add support for 64-byte single-copy atomic instructions (LS64/LS64V)
- Reduce MTE overhead when executing in the kernel on Ampere CPUs
- Ensure POR_EL0 value exposed via ptrace is up-to-date
- Fix error handling on GCS allocation failure
CPU frequency:
- Add CPU hotplug support to the FIE setup in the AMU driver
Entry code:
- Minor optimisations and cleanups to the syscall entry path
- Preparatory rework for moving to the generic syscall entry code
Hardware errata:
- Work around Spectre-BHB on TSV110 processors
- Work around broken CMO propagation on some systems with the SI-L1
interconnect
Miscellaneous:
- Disable branch profiling for arch/arm64/ to avoid issues with
noinstr
- Minor fixes and cleanups (kexec + ubsan, WARN_ONCE() instead of
WARN_ON(), reduction of boolean expression)
- Fix custom __READ_ONCE() implementation for LTO builds when
operating on non-atomic types
Perf and PMUs:
- Support for CMN-600AE
- Be stricter about supported hardware in the CMN driver
- Support for DSU-110 and DSU-120
- Support for the cycles event in the DSU driver (alongside the
dedicated cycles counter)
- Use IRQF_NO_THREAD instead of IRQF_ONESHOT in the cxlpmu driver
- Use !bitmap_empty() as a faster alternative to bitmap_weight()
- Fix SPE error handling when failing to resume profiling
Selftests:
- Add support for the FORCE_TARGETS option to the arm64 kselftests
- Avoid nolibc-specific my_syscall() function
- Add basic test for the LS64 HWCAP
- Extend fp-pidbench to cover additional workload patterns"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (43 commits)
perf/arm-cmn: Reject unsupported hardware configurations
perf: arm_spe: Properly set hw.state on failures
arm64/gcs: Fix error handling in arch_set_shadow_stack_status()
arm64: Fix non-atomic __READ_ONCE() with CONFIG_LTO=y
arm64: poe: fix stale POR_EL0 values for ptrace
kselftest/arm64: Raise default number of loops in fp-pidbench
kselftest/arm64: Add a no-SVE loop after SVE in fp-pidbench
perf/cxlpmu: Replace IRQF_ONESHOT with IRQF_NO_THREAD
arm64: mte: Set TCMA1 whenever MTE is present in the kernel
arm64/ptrace: Return early for ptrace_report_syscall_entry() error
arm64/ptrace: Split report_syscall()
arm64: Remove unused _TIF_WORK_MASK
kselftest/arm64: Add missing file in .gitignore
arm64: errata: Workaround for SI L1 downstream coherency issue
kselftest/arm64: Add HWCAP test for FEAT_LS64
arm64: Add support for FEAT_{LS64, LS64_V}
KVM: arm64: Enable FEAT_{LS64, LS64_V} in the supported guest
arm64: Provide basic EL2 setup for FEAT_{LS64, LS64_V} usage at EL0/1
KVM: arm64: Handle DABT caused by LS64* instructions on unsupported memory
KVM: arm64: Add documentation for KVM_EXIT_ARM_LDST64B
...
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Heiko Carstens:
- Drop support for outdated 3590/3592 and 3480 tape devices, and limit
support to virtualized 3490E types devices
- Implement exception based WARN() and WARN_ONCE() similar to x86
- Slightly optimize preempt primitives like __preempt_count_add() and
__preempt_count_dec_and_test()
- A couple of small fixes and improvements
* tag 's390-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (35 commits)
s390/tape: Consolidate tape config options and modules
s390/cio: Fix device lifecycle handling in css_alloc_subchannel()
s390/tape: Rename tape_34xx.c to tape_3490.c
s390/tape: Cleanup sense data analysis and error handling
s390/tape: Remove 3480 tape device type
s390/tape: Remove unused command definitions
s390/tape: Remove special block id handling
s390/tape: Remove tape load display support
s390/tape: Remove support for 3590/3592 models
s390/kexec: Emit an error message when cmdline is too long
s390/configs: Enable BLK_DEV_NULL_BLK as module
s390: Document s390 stackprotector support
s390/perf: Disable register readout on sampling events
s390/Kconfig: Define non-zero ILLEGAL_POINTER_VALUE
s390/bug: Prevent tail-call optimization
s390/bug: Skip __WARN_trap() in call traces
s390/bug: Implement WARN_ONCE()
s390/bug: Implement __WARN_printf()
s390/traps: Copy monitor code to pt_regs
s390/bug: Introduce and use monitor code macro
...
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git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks
Pull kthread updates from Frederic Weisbecker:
"The kthread code provides an infrastructure which manages the
preferred affinity of unbound kthreads (node or custom cpumask)
against housekeeping (CPU isolation) constraints and CPU hotplug
events.
One crucial missing piece is the handling of cpuset: when an isolated
partition is created, deleted, or its CPUs updated, all the unbound
kthreads in the top cpuset become indifferently affine to _all_ the
non-isolated CPUs, possibly breaking their preferred affinity along
the way.
Solve this with performing the kthreads affinity update from cpuset to
the kthreads consolidated relevant code instead so that preferred
affinities are honoured and applied against the updated cpuset
isolated partitions.
The dispatch of the new isolated cpumasks to timers, workqueues and
kthreads is performed by housekeeping, as per the nice Tejun's
suggestion.
As a welcome side effect, HK_TYPE_DOMAIN then integrates both the set
from boot defined domain isolation (through isolcpus=) and cpuset
isolated partitions. Housekeeping cpumasks are now modifiable with a
specific RCU based synchronization. A big step toward making
nohz_full= also mutable through cpuset in the future"
* tag 'kthread-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks: (33 commits)
doc: Add housekeeping documentation
kthread: Document kthread_affine_preferred()
kthread: Comment on the purpose and placement of kthread_affine_node() call
kthread: Honour kthreads preferred affinity after cpuset changes
sched/arm64: Move fallback task cpumask to HK_TYPE_DOMAIN
sched: Switch the fallback task allowed cpumask to HK_TYPE_DOMAIN
kthread: Rely on HK_TYPE_DOMAIN for preferred affinity management
kthread: Include kthreadd to the managed affinity list
kthread: Include unbound kthreads in the managed affinity list
kthread: Refine naming of affinity related fields
PCI: Remove superfluous HK_TYPE_WQ check
sched/isolation: Remove HK_TYPE_TICK test from cpu_is_isolated()
cpuset: Remove cpuset_cpu_is_isolated()
timers/migration: Remove superfluous cpuset isolation test
cpuset: Propagate cpuset isolation update to timers through housekeeping
cpuset: Propagate cpuset isolation update to workqueue through housekeeping
PCI: Flush PCI probe workqueue on cpuset isolated partition change
sched/isolation: Flush vmstat workqueues on cpuset isolated partition change
sched/isolation: Flush memcg workqueues on cpuset isolated partition change
cpuset: Update HK_TYPE_DOMAIN cpumask from cpuset
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These add support for "slow" (long-term trend) workload type hints to
the Intel int340x thermal driver and selftests (and enable it for
Panther Lake), add support for MT8196 along with DT bindings and for
MT7987 to the Mediatek LVTS thermal driver, add support for RZ/T2H and
RZ/N2H along with DT bindings to the Renesas rzg3e thermal driver, add
support for the Panther Lake, Wildcat Lake and Nova Lake processors to
the intel_tcc_cooling driver, fix bugs, make some cosmetic changes
including code cleanups and library function substitutions, and update
documentation.
Specifics:
- Add Panther Lake, Wildcat Lake and Nova Lake processor IDs to the
list of supported processors in the intel_tcc_cooling thermal
driver (Srinivas Pandruvada)
- Drop unnecessary explicit driver data clearing on removal from the
intel_pch_thermal driver (Kaushlendra Kumar)
- Add support for "slow" workload type hints to the int340x
processor_thermal driver and enable it on the Panther Lake platform
(Srinivas Pandruvada)
- Use sysfs_emit{_at}() in sysfs show functions in Intel thermal
drivers (Thorsten Blum)
- Update the x86_pkg_temp_thermal driver to handle
THERMAL_TEMP_INVALID that can be passed to it via sysfs as expected
(Rafael Wysocki)
- Drop a redundant local variable from the intel_tcc_cooling thermal
driver and fix a kerneldoc comment typo in the TCC library (Sumeet
Pawnikar)
- Fix CFLAGS and LDFLAGS in the pkg-config libthermal template
(Romain Gantois)
- Support multiple temp to raw conversion functions in the Mediatek
LVTS thermal driver and add MT8196 and MT6991 support to it (Laura
Nao)
- Add Mediatek LVTS driver support for MT7987 (Frank Wunderlich)
- Use the existing HZ_PER_MHZ macro on STM32 (Andy Shevchenko)
- Use the existing clamp() macro on BCM2835 (Thorsten Blum)
- Make the reset line optional in order to support new Renesas SoCs
where it is not available and add support for RZ/T2H and RZ/N2H to
the rzg3e thermal driver (Cosmin Tanislav)
- Document RZ/V2N TSU in the r9a09g047-tsu DT bindings (Ovidiu
Panait)
- Fix all kernel-doc warnings in the internal thermal core header
file (Randy Dunlap)
- Fix a device node reference leak in thermal_of_cm_lookup() (Felix
Gu)
- Replace some old-style library function calls with ones that are
currently recommended in several places in the thermal core and
debugfs code (Sumeet Pawnikar, Thorsten Blum)
* tag 'thermal-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (34 commits)
drivers: thermal: intel: tcc_cooling: Drop redundant local variable
thermal/of: Fix reference leak in thermal_of_cm_lookup()
thermal: core: thermal_core.h: fix all kernel-doc warnings
thermal: intel: x86_pkg_temp_thermal: Handle invalid temperature
thermal: renesas: rzg3e: add support for RZ/T2H and RZ/N2H
dt-bindings: thermal: r9a09g047-tsu: document RZ/T2H and RZ/N2H
thermal: renesas: rzg3e: make calibration value retrieval per-chip
thermal: renesas: rzg3e: make min and max temperature per-chip
thermal: renesas: rzg3e: make reset optional
dt-bindings: thermal: r9a09g047-tsu: Document RZ/V2N TSU
thermal/drivers/broadcom: Use clamp to simplify bcm2835_thermal_temp2adc
thermal/drivers/stm32: Use predefined HZ_PER_MHZ instead of a custom one
thermal/drivers/mediatek/lvts_thermal: Add mt7987 support
dt-bindings: thermal: mediatek: Add LVTS thermal controller definition for MT7987
dt-bindings: nvmem: mediatek: efuse: Add support for MT8196
thermal/drivers/mediatek/lvts_thermal: Add MT8196 support
thermal/drivers/mediatek/lvts: Support MSR offset for 16-bit calibration data
thermal/drivers/mediatek/lvts: Add support for ATP mode
thermal/drivers/mediatek/lvts: Add lvts_temp_to_raw variant
thermal/drivers/mediatek/lvts: Add platform ops to support alternative conversion logic
...
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Add the fsl,aips and fsl,emi compatible strings for legacy i.MX3 SoCs
(over 15 years old).
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260201011913.2419626-1-Frank.Li@nxp.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Drop the gpio reset from the list of required properties. The bridge works
fine with a reset not managed by Linux. In the driver itself the gpio is
already flagged as optional.
Signed-off-by: Dominik Haller <d.haller@phytec.de>
Link: https://patch.msgid.link/20260130205820.83189-6-d.haller@phytec.de
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"By the number of commits, cpufreq is the leading party (again) and the
most visible change there is the removal of the omap-cpufreq driver
that has not been used for a long time (good riddance). There are also
quite a few changes in the cppc_cpufreq driver, mostly related to
fixing its frequency invariance engine in the case when the CPPC
registers used by it are not in PCC. In addition to that, support for
AM62L3 is added to the ti-cpufreq driver and the cpufreq-dt-platdev
list is updated for some platforms. The remaining cpufreq changes are
assorted fixes and cleanups.
Next up is cpuidle and the changes there are dominated by intel_idle
driver updates, mostly related to the new command line facility
allowing users to adjust the list of C-states used by the driver.
There are also a few updates of cpuidle governors, including two menu
governor fixes and some refinements of the teo governor, and a
MAINTAINERS update adding Christian Loehle as a cpuidle reviewer.
[Thanks for stepping up Christian!]
The most significant update related to system suspend and hibernation
is the one to stop freezing the PM runtime workqueue during system PM
transitions which allows some deadlocks to be avoided. There is also a
fix for possible concurrent bit field updates in the core device
suspend code and a few other minor fixes.
Apart from the above, several drivers are updated to discard the
return value of pm_runtime_put() which is going to be converted to a
void function as soon as everybody stops using its return value, PL4
support for Ice Lake is added to the Intel RAPL power capping driver,
and there are assorted cleanups, documentation fixes, and some
cpupower utility improvements.
Specifics:
- Remove the unused omap-cpufreq driver (Andreas Kemnade)
- Optimize error handling code in cpufreq_boost_trigger_state() and
make cpufreq_boost_trigger_state() return -EOPNOTSUPP if no policy
supports boost (Lifeng Zheng)
- Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling,
Dhruva Gole, and Konrad Dybcio)
- Minor improvements to the cpufreq and cpumask rust implementation
(Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen)
- Add support for AM62L3 SoC to the ti-cpufreq driver (Dhruva Gole)
- Update arch_freq_scale in the CPPC cpufreq driver's frequency
invariance engine (FIE) in scheduler ticks if the related CPPC
registers are not in PCC (Jie Zhan)
- Assorted minor cleanups and improvements in ARM cpufreq drivers
(Juan Martinez, Felix Gu, Luca Weiss, and Sergey Shtylyov)
- Add generic helpers for sysfs show/store to cppc_cpufreq (Sumit
Gupta)
- Make the scaling_setspeed cpufreq sysfs attribute return the actual
requested frequency to avoid confusion (Pengjie Zhang)
- Simplify the idle CPU time granularity test in the ondemand cpufreq
governor (Frederic Weisbecker)
- Enable asym capacity in intel_pstate only when CPU SMT is not
possible (Yaxiong Tian)
- Update the description of rate_limit_us default value in cpufreq
documentation (Yaxiong Tian)
- Add a command line option to adjust the C-states table in the
intel_idle driver, remove the 'preferred_cstates' module parameter
from it, add C-states validation to it and clean it up (Artem
Bityutskiy)
- Make the menu cpuidle governor always check the time till the
closest timer event when the scheduler tick has been stopped to
prevent it from mistakenly selecting the deepest available idle
state (Rafael Wysocki)
- Update the teo cpuidle governor to avoid making suboptimal
decisions in certain corner cases and generally improve idle state
selection accuracy (Rafael Wysocki)
- Remove an unlikely() annotation on the early-return condition in
menu_select() that leads to branch misprediction 100% of the time
on systems with only 1 idle state enabled, like ARM64 servers
(Breno Leitao)
- Add Christian Loehle to MAINTAINERS as a cpuidle reviewer
(Christian Loehle)
- Stop flagging the PM runtime workqueue as freezable to avoid system
suspend and resume deadlocks in subsystems that assume asynchronous
runtime PM to work during system-wide PM transitions (Rafael
Wysocki)
- Drop redundant NULL pointer checks before acomp_request_free() from
the hibernation code handling image saving (Rafael Wysocki)
- Update wakeup_sources_walk_start() to handle empty lists of wakeup
sources as appropriate (Samuel Wu)
- Make dev_pm_clear_wake_irq() check the power.wakeirq value under
power.lock to avoid race conditions (Gui-Dong Han)
- Avoid bit field races related to power.work_in_progress in the core
device suspend code (Xuewen Yan)
- Make several drivers discard pm_runtime_put() return value in
preparation for converting that function to a void one (Rafael
Wysocki)
- Add PL4 support for Ice Lake to the Intel RAPL power capping driver
(Daniel Tang)
- Replace sprintf() with sysfs_emit() in power capping sysfs show
functions (Sumeet Pawnikar)
- Make dev_pm_opp_get_level() return value match the documentation
after a previous update of the latter (Aleks Todorov)
- Use scoped for each OF child loop in the OPP code (Krzysztof
Kozlowski)
- Fix a bug in an example code snippet and correct typos in the
energy model management documentation (Patrick Little)
- Fix miscellaneous problems in cpupower (Kaushlendra Kumar):
* idle_monitor: Fix incorrect value logged after stop
* Fix inverted APERF capability check
* Use strcspn() to strip trailing newline
* Reset errno before strtoull()
* Show C0 in idle-info dump
- Improve cpupower installation procedure by making the systemd step
optional and allowing users to disable the installation of
systemd's unit file (João Marcos Costa)"
* tag 'pm-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits)
PM: sleep: core: Avoid bit field races related to work_in_progress
PM: sleep: wakeirq: harden dev_pm_clear_wake_irq() against races
cpufreq: Documentation: Update description of rate_limit_us default value
cpufreq: intel_pstate: Enable asym capacity only when CPU SMT is not possible
PM: wakeup: Handle empty list in wakeup_sources_walk_start()
PM: EM: Documentation: Fix bug in example code snippet
Documentation: Fix typos in energy model documentation
cpuidle: governors: teo: Refine intercepts-based idle state lookup
cpuidle: governors: teo: Adjust the classification of wakeup events
cpufreq: ondemand: Simplify idle cputime granularity test
cpufreq: userspace: make scaling_setspeed return the actual requested frequency
PM: hibernate: Drop NULL pointer checks before acomp_request_free()
cpufreq: CPPC: Add generic helpers for sysfs show/store
cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id()
cpufreq: ti-cpufreq: add support for AM62L3 SoC
cpufreq: dt-platdev: Add ti,am62l3 to blocklist
cpufreq/amd-pstate: Add comment explaining nominal_perf usage for performance policy
cpufreq: scmi: correct SCMI explanation
cpufreq: dt-platdev: Block the driver from probing on more QC platforms
rust: cpumask: rename methods of Cpumask for clarity and consistency
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"This one is significantly larger than previous ACPI support pull
requests because several significant updates have coincided in it.
First, there is a routine ACPICA code update, to upstream version
20251212, but this time it covers new ACPI 6.6 material that has not
been covered yet. Among other things, it includes definitions of a few
new ACPI tables and updates of some others, like the GICv5 MADT
structures and ARM IORT IWB node definitions that are used for adding
GICv5 ACPI probing on ARM (that technically is IRQ subsystem material,
but it depends on the ACPICA changes, so it is included here). The
latter alone adds a few hundred lines of new code.
Second, there is an update of ACPI _OSC handling including a fix that
prevents failures from occurring in some corner cases due to careless
handling of _OSC error bits.
On top of that, the "system resource" ACPI device objects with the
PNP0C01 and PNP0C02 are now going to be handled by the ACPI core
device enumeration code instead of handing them over to the legacy PNP
system driver which causes device enumeration issues to occur. Some of
those issues have been worked around in device drivers and elsewhere
and those workarounds should not be necessary any more, so they are
going away.
Moreover, the time has come to convert all "core ACPI" device drivers
that were still using struct acpi_driver objects for device binding
into proper platform drivers that use struct platform_driver for this
purpose. These updates are accompanied by some requisite core ACPI
device enumeration code changes.
Next, there are ACPI APEI updates, including changes to avoid excess
overhead in the NMI handler and in SEA on the ARM side, changes to
unify ACPI-based HW error tracing and logging, and changes to prevent
APEI code from reaching out of its allocated memory.
There are also some ACPI power management updates, mostly related to
the ACPI cpuidle support in the processor driver, suspend-to-idle
handling on systems with ACPI support and to ACPI PM of devices.
In addition to the above, bugs are fixed and the code is cleaned up in
assorted places all over.
Specifics:
- Update the ACPICA code in the kernel to upstream version 20251212
which includes the following changes:
* Add support for new ACPI table DTPR (Michal Camacho Romero)
* Release objects with acpi_ut_delete_object_desc() (Zilin Guan)
* Add UUIDs for Microsoft fan extensions and UUIDs associated with
TPM 2.0 devices (Armin Wolf)
* Fix NULL pointer dereference in acpi_ev_address_space_dispatch()
(Alexey Simakov)
* Add KEYP ACPI table definition (Dave Jiang)
* Add support for the Microsoft display mux _OSI string (Armin
Wolf)
* Add definitions for the IOVT ACPI table (Xianglai Li)
* Abort AML bytecode execution on AML_FATAL_OP (Armin Wolf)
* Include all fields in subtable type1 for PPTT (Ben Horgan)
* Add GICv5 MADT structures and Arm IORT IWB node definitions
(Jose Marinho)
* Update Parameter Block structure for RAS2 and add a new flag in
Memory Affinity Structure for SRAT (Pawel Chmielewski)
* Add _VDM (Voltage Domain) object (Pawel Chmielewski)
- Add support for GICv5 ACPI probing on ARM which is based on the
GICv5 MADT structures and ARM IORT IWB node definitions recently
added to ACPICA (Lorenzo Pieralisi)
- Rework ACPI PM notification setup for PCI root buses and modify the
ACPI PM setup for devices to register wakeup source objects under
physical (that is, PCI, platform, etc.) devices instead of doing
that under their ACPI companions (Rafael Wysocki)
- Adjust debug messages regarding postponed ACPI PM printed during
system resume to be more accurate (Rafael Wysocki)
- Remove dead code from lps0_device_attach() (Gergo Koteles)
- Start to invoke Microsoft Function 9 (Turn On Display) of the Low-
Power S0 Idle (LPS0) _DSM in the suspend-to-idle resume flow on
systems with ACPI LPS0 support to address a functional issue on
Lenovo Yoga Slim 7i Aura (15ILL9), where system fans and keyboard
backlights fail to resume after suspend (Jakob Riemenschneider)
- Add sysfs attribute cid for exposing _CID lists under ACPI device
objects (Rafael Wysocki)
- Replace sprintf() with sysfs_emit() in all of the core ACPI sysfs
interface code (Sumeet Pawnikar)
- Use acpi_get_local_u64_address() in the code implementing ACPI
support for PCI to evaluate _ADR instead of evaluating that object
directly (Andy Shevchenko)
- Add JWIPC JVC9100 to irq1_level_low_skip_override[] to unbreak
serial IRQs on that system (Ai Chao)
- Fix handling of _OSC errors in acpi_run_osc() to avoid failures on
systems where _OSC error bits are set even though the _OSC return
buffer contains acknowledged feature bits (Rafael Wysocki)
- Clean up and rearrange \_SB._OSC handling for general platform
features and USB4 features to avoid code duplication and
unnecessary memory management overhead (Rafael Wysocki)
- Make the ACPI core device enumeration code handle PNP0C01 and
PNP0C02 ("system resource") device objects directly instead of
letting the legacy PNP system driver handle them to avoid device
enumeration issues on systems where PNP0C02 is present in the _CID
list under ACPI device objects with a _HID matching a proper device
driver in Linux (Rafael Wysocki)
- Drop workarounds for the known device enumeration issues related to
_CID lists containing PNP0C02 (Rafael Wysocki)
- Drop outdated comment regarding removed function in the ACPI-based
device enumeration code (Julia Lawall)
- Make PRP0001 device matching work as expected for ACPI device
objects using it as a _HID for board development and similar
purposes (Kartik Rajput)
- Use async schedule function in acpi_scan_clear_dep_fn() to avoid
races with user space initialization on some systems (Yicong Yang)
- Add a piece of documentation explaining why binding drivers
directly to ACPI device objects is not a good idea in general and
why it is desirable to convert drivers doing so into proper
platform drivers that use struct platform_driver for device binding
(Rafael Wysocki)
- Convert multiple "core ACPI" drivers, including the NFIT ACPI
device driver, the generic ACPI button drivers, the generic ACPI
thermal zone driver, the ACPI hardware event device (HED) driver,
the ACPI EC driver, the ACPI SMBUS HC driver, the ACPI Smart
Battery Subsystem (SBS) driver, and the ACPI backlight (video)
driver to proper platform drivers that use struct platform_driver
for device binding (Rafael Wysocki)
- Use acpi_get_local_u64_address() in the ACPI backlight (video)
driver to evaluate _ADR instead of evaluating that object directly
(Andy Shevchenko)
- Convert the generic ACPI battery driver to a proper platform driver
using struct platform_driver for device binding (Rafael Wysocki)
- Fix incorrect charging status when current is zero in the generic
ACPI battery driver (Ata İlhan Köktürk)
- Use LIST_HEAD() for initializing a stack-allocated list in the
generic ACPI watchdog device driver (Can Peng)
- Rework the ACPI idle driver initialization to register it directly
from the common initialization code instead of doing that from a
CPU hotplug "online" callback and clean it up (Huisong Li, Rafael
Wysocki)
- Fix a possible NULL pointer dereference in
acpi_processor_errata_piix4() (Tuo Li)
- Make read-only array non_mmio_desc[] static const (Colin Ian King)
- Prevent the APEI GHES support code on ARM from accessing memory out
of bounds or going past the ARM processor CPER record buffer (Mauro
Carvalho Chehab)
- Prevent cper_print_fw_err() from dumping the entire memory on
systems with defective firmware (Mauro Carvalho Chehab)
- Improve ghes_notify_nmi() status check to avoid unnecessary
overhead in the NMI handler by carrying out all of the requisite
preparations and the NMI registration time (Tony Luck)
- Refactor the GHES driver by extracting common functionality into
reusable helper functions to reduce code duplication and improve
the ghes_notify_sea() status check in analogy with the previous
ghes_notify_nmi() status check improvement (Shuai Xue)
- Make ELOG and GHES log and trace consistently and support the CPER
CXL protocol analogously (Fabio De Francesco)
- Disable KASAN instrumentation in the APEI GHES driver when compile
testing with clang < 18 (Nathan Chancellor)
- Let ghes_edac be the preferred driver to load on __ZX__ and _BYO_
systems by extending the platform detection list in the APEI GHES
driver (Tony W Wang-oc)
- Clean up cppc_perf_caps and cppc_perf_ctrls structs and rename EPP
constants for clarity in the ACPI CPPC library (Sumit Gupta)"
* tag 'acpi-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (117 commits)
ACPI: battery: fix incorrect charging status when current is zero
ACPI: scan: Use async schedule function in acpi_scan_clear_dep_fn()
ACPI: x86: s2idle: Invoke Microsoft _DSM Function 9 (Turn On Display)
ACPI: APEI: GHES: Add ghes_edac support for __ZX__ and _BYO_ systems
ACPI: APEI: GHES: Disable KASAN instrumentation when compile testing with clang < 18
ACPI: sysfs: Replace sprintf() with sysfs_emit()
ACPI: CPPC: Rename EPP constants for clarity
ACPI: CPPC: Clean up cppc_perf_caps and cppc_perf_ctrls structs
ACPI: processor: idle: Rework the handling of acpi_processor_ffh_lpi_probe()
ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_dev() to void
ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_states() to void
irqchip/gic-v5: Add ACPI IWB probing
irqchip/gic-v5: Add ACPI ITS probing
irqchip/gic-v5: Add ACPI IRS probing
irqchip/gic-v5: Split IRS probing into OF and generic portions
PCI/MSI: Make the pci_msi_map_rid_ctlr_node() interface firmware agnostic
irqdomain: Add parent field to struct irqchip_fwid
ACPI: PCI: simplify code with acpi_get_local_u64_address()
ACPI: video: simplify code with acpi_get_local_u64_address()
ACPI: PM: Adjust messages regarding postponed ACPI PM
...
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git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:
- Support for batch request processing for ublk, improving the
efficiency of the kernel/ublk server communication. This can yield
nice 7-12% performance improvements
- Support for integrity data for ublk
- Various other ublk improvements and additions, including a ton of
selftests additions and updated
- Move the handling of blk-crypto software fallback from below the
block layer to above it. This reduces the complexity of dealing with
bio splitting
- Series fixing a number of potential deadlocks in blk-mq related to
the queue usage counter and writeback throttling and rq-qos debugfs
handling
- Add an async_depth queue attribute, to resolve a performance
regression that's been around for a qhilw related to the scheduler
depth handling
- Only use task_work for IOPOLL completions on NVMe, if it is necessary
to do so. An earlier fix for an issue resulted in all these
completions being punted to task_work, to guarantee that completions
were only run for a given io_uring ring when it was local to that
ring. With the new changes, we can detect if it's necessary to use
task_work or not, and avoid it if possible.
- rnbd fixes:
- Fix refcount underflow in device unmap path
- Handle PREFLUSH and NOUNMAP flags properly in protocol
- Fix server-side bi_size for special IOs
- Zero response buffer before use
- Fix trace format for flags
- Add .release to rnbd_dev_ktype
- MD pull requests via Yu Kuai
- Fix raid5_run() to return error when log_init() fails
- Fix IO hang with degraded array with llbitmap
- Fix percpu_ref not resurrected on suspend timeout in llbitmap
- Fix GPF in write_page caused by resize race
- Fix NULL pointer dereference in process_metadata_update
- Fix hang when stopping arrays with metadata through dm-raid
- Fix any_working flag handling in raid10_sync_request
- Refactor sync/recovery code path, improve error handling for
badblocks, and remove unused recovery_disabled field
- Consolidate mddev boolean fields into mddev_flags
- Use mempool to allocate stripe_request_ctx and make sure
max_sectors is not less than io_opt in raid5
- Fix return value of mddev_trylock
- Fix memory leak in raid1_run()
- Add Li Nan as mdraid reviewer
- Move phys_vec definitions to the kernel types, mostly in preparation
for some VFIO and RDMA changes
- Improve the speed for secure erase for some devices
- Various little rust updates
- Various other minor fixes, improvements, and cleanups
* tag 'for-7.0/block-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (162 commits)
blk-mq: ABI/sysfs-block: fix docs build warnings
selftests: ublk: organize test directories by test ID
block: decouple secure erase size limit from discard size limit
block: remove redundant kill_bdev() call in set_blocksize()
blk-mq: add documentation for new queue attribute async_dpeth
block, bfq: convert to use request_queue->async_depth
mq-deadline: covert to use request_queue->async_depth
kyber: covert to use request_queue->async_depth
blk-mq: add a new queue sysfs attribute async_depth
blk-mq: factor out a helper blk_mq_limit_depth()
blk-mq-sched: unify elevators checking for async requests
block: convert nr_requests to unsigned int
block: don't use strcpy to copy blockdev name
blk-mq-debugfs: warn about possible deadlock
blk-mq-debugfs: add missing debugfs_mutex in blk_mq_debugfs_register_hctxs()
blk-mq-debugfs: remove blk_mq_debugfs_unregister_rqos()
blk-mq-debugfs: make blk_mq_debugfs_register_rqos() static
blk-rq-qos: fix possible debugfs_mutex deadlock
blk-mq-debugfs: factor out a helper to register debugfs for all rq_qos
blk-wbt: fix possible deadlock to nest pcpu_alloc_mutex under q_usage_counter
...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs 'struct filename' updates from Al Viro:
"[Mostly] sanitize struct filename handling"
* tag 'pull-filename' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (68 commits)
sysfs(2): fs_index() argument is _not_ a pathname
alpha: switch osf_mount() to strndup_user()
ksmbd: use CLASS(filename_kernel)
mqueue: switch to CLASS(filename)
user_statfs(): switch to CLASS(filename)
statx: switch to CLASS(filename_maybe_null)
quotactl_block(): switch to CLASS(filename)
chroot(2): switch to CLASS(filename)
move_mount(2): switch to CLASS(filename_maybe_null)
namei.c: switch user pathname imports to CLASS(filename{,_flags})
namei.c: convert getname_kernel() callers to CLASS(filename_kernel)
do_f{chmod,chown,access}at(): use CLASS(filename_uflags)
do_readlinkat(): switch to CLASS(filename_flags)
do_sys_truncate(): switch to CLASS(filename)
do_utimes_path(): switch to CLASS(filename_uflags)
chdir(2): unspaghettify a bit...
do_fchownat(): unspaghettify a bit...
fspick(2): use CLASS(filename_flags)
name_to_handle_at(): use CLASS(filename_uflags)
vfs_open_tree(): use CLASS(filename_uflags)
...
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Pull xfs updates from Carlos Maiolino:
"This contains several improvements to zoned device support,
performance improvements for the parent pointers, and a new health
monitoring feature. There are some improvements in the journaling code
too but no behavior change expected.
Last but not least, some code refactoring and bug fixes are also
included in this series"
* tag 'xfs-merge-7.0' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (67 commits)
xfs: add sysfs stats for zoned GC
xfs: give the defer_relog stat a xs_ prefix
xfs: add zone reset error injection
xfs: refactor zone reset handling
xfs: don't mark all discard issued by zoned GC as sync
xfs: allow setting errortags at mount time
xfs: use WRITE_ONCE/READ_ONCE for m_errortag
xfs: move the guts of XFS_ERRORTAG_DELAY out of line
xfs: don't validate error tags in the I/O path
xfs: allocate m_errortag early
xfs: fix the errno sign for the xfs_errortag_{add,clearall} stubs
xfs: validate log record version against superblock log version
xfs: fix spacing style issues in xfs_alloc.c
xfs: remove xfs_zone_gc_space_available
xfs: use a seprate member to track space availabe in the GC scatch buffer
xfs: check for deleted cursors when revalidating two btrees
xfs: fix UAF in xchk_btree_check_block_owner
xfs: check return value of xchk_scrub_create_subord
xfs: only call xf{array,blob}_destroy if we have a valid pointer
xfs: get rid of the xchk_xfile_*_descr calls
...
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git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs
Pull erofs updates from Gao Xiang:
"In this cycle, inode page cache sharing among filesystems on the same
machine is now supported, which is particularly useful for
high-density hosts running tens of thousands of containers.
In addition, we fully isolate the EROFS core on-disk format from other
optional encoded layouts since the core on-disk part is designed to be
simple, effective, and secure. Users can use the core format to build
unique golden immutable images and import their filesystem trees
directly from raw block devices via DMA, page-mapped DAX devices,
and/or file-backed mounts without having to worry about unnecessary
intrinsic consistency issues found in other generic filesystems by
design. However, the full vision is still working in progress and will
spend more time to achieve final goals.
There are other improvements and bug fixes as usual, as listed below:
- Support inode page cache sharing among filesystems
- Formally separate optional encoded (aka compressed) inode layouts
(and the implementations) from the EROFS core on-disk aligned plain
format for future zero-trust security usage
- Improve performance by caching the fact that an inode does not have
a POSIX ACL
- Improve LZ4 decompression error reporting
- Enable LZMA by default and promote DEFLATE and Zstandard algorithms
out of EXPERIMENTAL status
- Switch to inode_set_cached_link() to cache symlink lengths
- random bugfixes and minor cleanups"
* tag 'erofs-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: (31 commits)
erofs: fix UAF issue for file-backed mounts w/ directio option
erofs: update compression algorithm status
erofs: fix inline data read failure for ztailpacking pclusters
erofs: avoid some unnecessary #ifdefs
erofs: handle end of filesystem properly for file-backed mounts
erofs: separate plain and compressed filesystems formally
erofs: use inode_set_cached_link()
erofs: mark inodes without acls in erofs_read_inode()
erofs: implement .fadvise for page cache share
erofs: support compressed inodes for page cache share
erofs: support unencoded inodes for page cache share
erofs: pass inode to trace_erofs_read_folio
erofs: introduce the page cache share feature
erofs: using domain_id in the safer way
erofs: add erofs_inode_set_aops helper to set the aops
erofs: support user-defined fingerprint name
erofs: decouple `struct erofs_anon_fs_type`
fs: Export alloc_empty_backing_file
erofs: tidy up erofs_init_inode_xattrs()
erofs: add missing documentation about `directio` mount option
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
"This contains a mix of VFS cleanups, performance improvements, API
fixes, documentation, and a deprecation notice.
Scalability and performance:
- Rework pid allocation to only take pidmap_lock once instead of
twice during alloc_pid(), improving thread creation/teardown
throughput by 10-16% depending on false-sharing luck. Pad the
namespace refcount to reduce false-sharing
- Track file lock presence via a flag in ->i_opflags instead of
reading ->i_flctx, avoiding false-sharing with ->i_readcount on
open/close hot paths. Measured 4-16% improvement on 24-core
open-in-a-loop benchmarks
- Use a consume fence in locks_inode_context() to match the
store-release/load-consume idiom, eliminating a hardware fence on
some architectures
- Annotate cdev_lock with __cacheline_aligned_in_smp to prevent
false-sharing
- Remove a redundant DCACHE_MANAGED_DENTRY check in
__follow_mount_rcu() that never fires since the caller already
verifies it, eliminating a 100% mispredicted branch
- Fix a 100% mispredicted likely() in devcgroup_inode_permission()
that became wrong after a prior code reorder
Bug fixes and correctness:
- Make insert_inode_locked() wait for inode destruction instead of
skipping, fixing a corner case where two matching inodes could
exist in the hash
- Move f_mode initialization before file_ref_init() in alloc_file()
to respect the SLAB_TYPESAFE_BY_RCU ordering contract
- Add a WARN_ON_ONCE guard in try_to_free_buffers() for folios with
no buffers attached, preventing a null pointer dereference when
AS_RELEASE_ALWAYS is set but no release_folio op exists
- Fix select restart_block to store end_time as timespec64, avoiding
truncation of tv_sec on 32-bit architectures
- Make dump_inode() use get_kernel_nofault() to safely access inode
and superblock fields, matching the dump_mapping() pattern
API modernization:
- Make posix_acl_to_xattr() allocate the buffer internally since
every single caller was doing it anyway. Reduces boilerplate and
unnecessary error checking across ~15 filesystems
- Replace deprecated simple_strtoul() with kstrtoul() for the
ihash_entries, dhash_entries, mhash_entries, and mphash_entries
boot parameters, adding proper error handling
- Convert chardev code to use guard(mutex) and __free(kfree) cleanup
patterns
- Replace min_t() with min() or umin() in VFS code to avoid silently
truncating unsigned long to unsigned int
- Gate LOOKUP_RCU assertions behind CONFIG_DEBUG_VFS since callers
already check the flag
Deprecation:
- Begin deprecating legacy BSD process accounting (acct(2)). The
interface has numerous footguns and better alternatives exist
(eBPF)
Documentation:
- Fix and complete kernel-doc for struct export_operations, removing
duplicated documentation between ReST and source
- Fix kernel-doc warnings for __start_dirop() and ilookup5_nowait()
Testing:
- Add a kunit test for initramfs cpio handling of entries with
filesize > PATH_MAX
Misc:
- Add missing <linux/init_task.h> include in fs_struct.c"
* tag 'vfs-7.0-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (28 commits)
posix_acl: make posix_acl_to_xattr() alloc the buffer
fs: make insert_inode_locked() wait for inode destruction
initramfs_test: kunit test for cpio.filesize > PATH_MAX
fs: improve dump_inode() to safely access inode fields
fs: add <linux/init_task.h> for 'init_fs'
docs: exportfs: Use source code struct documentation
fs: move initializing f_mode before file_ref_init()
exportfs: Complete kernel-doc for struct export_operations
exportfs: Mark struct export_operations functions at kernel-doc
exportfs: Fix kernel-doc output for get_name()
acct(2): begin the deprecation of legacy BSD process accounting
device_cgroup: remove branch hint after code refactor
VFS: fix __start_dirop() kernel-doc warnings
fs: Describe @isnew parameter in ilookup5_nowait()
fs/namei: Remove redundant DCACHE_MANAGED_DENTRY check in __follow_mount_rcu
fs: only assert on LOOKUP_RCU when built with CONFIG_DEBUG_VFS
select: store end_time as timespec64 in restart block
chardev: Switch to guard(mutex) and __free(kfree)
namespace: Replace simple_strtoul with kstrtoul to parse boot params
dcache: Replace simple_strtoul with kstrtoul in set_dhash_entries
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs mount updates from Christian Brauner:
- statmount: accept fd as a parameter
Extend struct mnt_id_req with a file descriptor field and a new
STATMOUNT_BY_FD flag. When set, statmount() returns mount information
for the mount the fd resides on — including detached mounts
(unmounted via umount2(MNT_DETACH)).
For detached mounts the STATMOUNT_MNT_POINT and STATMOUNT_MNT_NS_ID
mask bits are cleared since neither is meaningful. The capability
check is skipped for STATMOUNT_BY_FD since holding an fd already
implies prior access to the mount and equivalent information is
available through fstatfs() and /proc/pid/mountinfo without
privilege. Includes comprehensive selftests covering both attached
and detached mount cases.
- fs: Remove internal old mount API code (1 patch)
Now that every in-tree filesystem has been converted to the new
mount API, remove all the legacy shim code in fs_context.c that
handled unconverted filesystems. This deletes ~280 lines including
legacy_init_fs_context(), the legacy_fs_context struct, and
associated wrappers. The mount(2) syscall path for userspace remains
untouched. Documentation references to the legacy callbacks are
cleaned up.
- mount: add OPEN_TREE_NAMESPACE to open_tree()
Container runtimes currently use CLONE_NEWNS to copy the caller's
entire mount namespace — only to then pivot_root() and recursively
unmount everything they just copied. With large mount tables and
thousands of parallel container launches this creates significant
contention on the namespace semaphore.
OPEN_TREE_NAMESPACE copies only the specified mount tree (like
OPEN_TREE_CLONE) but returns a mount namespace fd instead of a
detached mount fd. The new namespace contains the copied tree mounted
on top of a clone of the real rootfs.
This functions as a combined unshare(CLONE_NEWNS) + pivot_root() in a
single syscall. Works with user namespaces: an unshare(CLONE_NEWUSER)
followed by OPEN_TREE_NAMESPACE creates a mount namespace owned by
the new user namespace. Mount namespace file mounts are excluded from
the copy to prevent cycles. Includes ~1000 lines of selftests"
* tag 'vfs-7.0-rc1.namespace' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
selftests/open_tree: add OPEN_TREE_NAMESPACE tests
mount: add OPEN_TREE_NAMESPACE
fs: Remove internal old mount API code
selftests: statmount: tests for STATMOUNT_BY_FD
statmount: accept fd as a parameter
statmount: permission check should return EPERM
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs nullfs update from Christian Brauner:
"Add a completely catatonic minimal pseudo filesystem called "nullfs"
and make pivot_root() work in the initramfs.
Currently pivot_root() does not work on the real rootfs because it
cannot be unmounted. Userspace has to recursively delete initramfs
contents manually before continuing boot, using the fragile
switch_root sequence (overmount + chroot).
Add nullfs, a minimal immutable filesystem that serves as the true
root of the mount hierarchy. The mutable rootfs (tmpfs/ramfs) is
mounted on top of it. This allows userspace to simply:
chdir(new_root);
pivot_root(".", ".");
umount2(".", MNT_DETACH);
without the traditional switch_root workarounds. systemd already
handles this correctly. It tries pivot_root() first and falls back
to MS_MOVE only when that fails.
This also means rootfs mounts in unprivileged namespaces no longer
need MNT_LOCKED, since the immutable nullfs guarantees nothing can be
revealed by unmounting the covering mount.
nullfs is a single-instance filesystem (get_tree_single()) marked
SB_NOUSER | SB_I_NOEXEC | SB_I_NODEV with an immutable empty root
directory. This means sooner or later it can be used to overmount
other directories to hide their contents without any additional
protection needed.
We enable it unconditionally. If we see any real regression we'll
hide it behind a boot option.
nullfs has extensions beyond this in the future. It will serve as a
concept to support the creation of completely empty mount namespaces -
which is work coming up in the next cycle"
* tag 'vfs-7.0-rc1.nullfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: use nullfs unconditionally as the real rootfs
docs: mention nullfs
fs: add immutable rootfs
fs: add init_pivot_root()
fs: ensure that internal tmpfs mount gets mount id zero
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs lease updates from Christian Brauner:
"This contains updates for lease support to require filesystems to
explicitly opt-in to lease support
Currently kernel_setlease() falls through to generic_setlease() when a
a filesystem does not define ->setlease(), silently granting lease
support to every filesystem regardless of whether it is prepared for
it.
This is a poor default: most filesystems never intended to support
leases, and the silent fallthrough makes it impossible to distinguish
"supports leases" from "never thought about it".
This inverts the default. It adds explicit
.setlease = generic_setlease;
assignments to every in-tree filesystem that should retain lease
support, then changes kernel_setlease() to return -EINVAL when
->setlease is NULL.
With the new default in place, simple_nosetlease() is redundant and
is removed along with all references to it"
* tag 'vfs-7.0-rc1.leases' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (25 commits)
fuse: add setlease file operation
fs: remove simple_nosetlease()
filelock: default to returning -EINVAL when ->setlease operation is NULL
xfs: add setlease file operation
ufs: add setlease file operation
udf: add setlease file operation
tmpfs: add setlease file operation
squashfs: add setlease file operation
overlayfs: add setlease file operation
orangefs: add setlease file operation
ocfs2: add setlease file operation
ntfs3: add setlease file operation
nilfs2: add setlease file operation
jfs: add setlease file operation
jffs2: add setlease file operation
gfs2: add a setlease file operation
fat: add setlease file operation
f2fs: add setlease file operation
exfat: add setlease file operation
ext4: add setlease file operation
...
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Update http link to the documentation about how to add a kernel.org UID to
the maintainer's key. Add missing SPDX-License-Identifier to fix a
checkpatch warning.
Signed-off-by: Amitabh Srivastava <amitabh@amidevlab.com>
Reviewed-by: Konstantin Ryabitsev <konstantin@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260205115554.7795-1-amitabh@amidevlab.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs timestamp updates from Christian Brauner:
"This contains the changes to support non-blocking timestamp updates.
Since commit 66fa3cedf16a ("fs: Add async write file modification
handling") file_update_time_flags() unconditionally returns -EAGAIN
when any timestamp needs updating and IOCB_NOWAIT is set. This makes
non-blocking direct writes impossible on file systems with granular
enough timestamps, which in practice means all of them.
This reworks the timestamp update path to propagate IOCB_NOWAIT
through ->update_time so that file systems which can update timestamps
without blocking are no longer penalized.
With that groundwork in place, the core change passes IOCB_NOWAIT into
->update_time and returns -EAGAIN only when the file system indicates
it would block.
XFS implements non-blocking timestamp updates by using the new
->sync_lazytime and open-coding generic_update_time without the
S_NOWAIT check, since the lazytime path through the generic helpers
can never block in XFS"
* tag 'vfs-7.0-rc1.nonblocking_timestamps' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
xfs: enable non-blocking timestamp updates
xfs: implement ->sync_lazytime
fs: refactor file_update_time_flags
fs: add support for non-blocking timestamp updates
fs: add a ->sync_lazytime method
fs: factor out a sync_lazytime helper
fs: refactor ->update_time handling
fat: cleanup the flags for fat_truncate_time
nfs: split nfs_update_timestamps
fs: allow error returns from generic_update_time
fs: remove inode_update_time
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs initrd removal from Christian Brauner:
"Remove the deprecated linuxrc-based initrd code path and related dead
code. The linuxrc initrd path was deprecated in 2020 and this series
completes its removal. If we see real-life regressions we'll revert.
The core change removes handle_initrd() and init_linuxrc() — the
entire flow that ran /linuxrc from an initrd, pivoted roots, and
handed off to the real root filesystem. With that gone, initrd_load()
becomes void (no longer short-circuits prepare_namespace()),
rd_load_image() is simplified to always load /initrd.image instead of
taking a path, and rd_load_disk() is deleted.
The /proc/sys/kernel/real-root-dev sysctl and its backing variable are
removed since they only existed for linuxrc to communicate the real
root device back to the kernel.
The no-op load_ramdisk= and prompt_ramdisk= parameters are dropped,
and noinitrd and ramdisk_start= gain deprecation warnings.
Initramfs is entirely unaffected. The non-linuxrc initrd path
(root=/dev/ram0) is preserved but now carries a deprecation warning
targeting January 2027 removal"
* tag 'vfs-7.0-rc1.initrd' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
init: remove /proc/sys/kernel/real-root-dev
initrd: remove deprecated code path (linuxrc)
init: remove deprecated "load_ramdisk" and "prompt_ramdisk" command line parameters
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git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull i3c updates from Alexandre Belloni:
"Subsystem:
- add sysfs entry and attribute for Device NACK Retry count
Drivers:
- dw: Device NACK Retry configuration knob
- mipi-i3c-hci: support multi-bus instances, runtime PM, and suspend
- renesas: suspend/resume support"
* tag 'i3c/for-6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (52 commits)
i3c: dw-i3c-master: fix SIR reject bit mapping for dynamic addresses
i3c: dw-i3c-master: convert spinlock usage to scoped guards
i3c: dw: Fix memory leak in dw_i3c_master_i2c_xfers()
i3c: mipi-i3c-hci-pci: Add System Suspend support
i3c: mipi-i3c-hci: Add optional System Suspend support
i3c: master: Add i3c_master_do_daa_ext() for post-hibernation address recovery
i3c: dw: Initialize spinlock to avoid upsetting lockdep
i3c: mipi-i3c-hci-pci: Add Runtime PM support
i3c: mipi-i3c-hci: Add optional Runtime PM support
i3c: master: Introduce optional Runtime PM support
i3c: mipi-i3c-hci: Factor out master dynamic address setting into helper
i3c: mipi-i3c-hci: Allow core re-initialization for Runtime PM support
i3c: mipi-i3c-hci: Factor out core initialization into helper
i3c: mipi-i3c-hci: Factor out IO mode setting into helper
i3c: mipi-i3c-hci: Factor out software reset into helper
i3c: mipi-i3c-hci: Add PIO suspend and resume support
i3c: mipi-i3c-hci: Refactor PIO register initialization
i3c: mipi-i3c-hci: Add DMA suspend and resume support
i3c: mipi-i3c-hci: Extract ring initialization from hci_dma_init()
i3c: mipi-i3c-hci: Introduce helper to restore DAT
...
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KVM x86 misc changes for 6.20
- Disallow changing the virtual CPU model if L2 is active, for all the same
reasons KVM disallows change the model after the first KVM_RUN.
- Fix a bug where KVM would incorrectly reject host accesses to PV MSRs that
were advertised as supported to userspace when running with
KVM_CAP_ENFORCE_PV_FEATURE_CPUID enabled.
- Fix a bug where KVM would attempt to read protect guest state (CR3) when
configuring an async #PF entry.
- Fail the build if EXPORT_SYMBOL_GPL or EXPORT_SYMBOL is used in KVM (for x86
only) to enforce usage of EXPORT_SYMBOL_FOR_KVM_INTERNAL. Explicitly allow
the few exports that are intended for external usage.
- Ignore -EBUSY when checking nested events after a vCPU exits blocking as
the WARN is user-triggerable, and because exiting to userspace on -EBUSY
does more harm than good in pretty much every situation.
- Throw in the towel and drop the WARN on INIT/SIPI being blocked when vCPU is
in Wait-For-SIPI, as playing whack-a-mole with syzkaller turned out to be an
unwinnable game.
- Add support for new Intel instructions that don't require anything beyond
enumerating feature flags to userspace.
- Grab SRCU when reading PDPTRs in KVM_GET_SREGS2.
- Add WARNs to guard against modifying KVM's CPU caps outside of the intended
setup flow, as nested VMX in particular is sensitive to unexpected changes
in KVM's golden configuration.
- Add a quirk to allow userspace to opt-in to actually suppress EOI broadcasts
when the suppression feature is enabled by the guest (currently limited to
split IRQCHIP, i.e. userspace I/O APIC). Sadly, simply fixing KVM to honor
Suppress EOI Broadcasts isn't an option as some userspaces have come to rely
on KVM's buggy behavior (KVM advertises Supress EOI Broadcast irrespective
of whether or not userspace I/O APIC supports Directed EOIs).
- Minor cleanups.
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KVM SVM changes for 6.20
- Drop a user-triggerable WARN on nested_svm_load_cr3() failure.
- Add support for virtualizing ERAPS. Note, correct virtualization of ERAPS
relies on an upcoming, publicly announced change in the APM to reduce the
set of conditions where hardware (i.e. KVM) *must* flush the RAP.
- Ignore nSVM intercepts for instructions that are not supported according to
L1's virtual CPU model.
- Add support for expedited writes to the fast MMIO bus, a la VMX's fastpath
for EPT Misconfig.
- Don't set GIF when clearing EFER.SVME, as GIF exists independently of SVM,
and allow userspace to restore nested state with GIF=0.
- Treat exit_code as an unsigned 64-bit value through all of KVM.
- Add support for fetching SNP certificates from userspace.
- Fix a bug where KVM would use vmcb02 instead of vmcb01 when emulating VMLOAD
or VMSAVE on behalf of L2.
- Misc fixes and cleanups.
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git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
Pull RCU updates from Boqun Feng:
- RCU Tasks Trace:
Re-implement RCU tasks trace in term of SRCU-fast, not only more than
500 lines of code are saved because of the reimplementation, a new
set of API, rcu_read_{,un}lock_tasks_trace(), becomes possible as
well. Compared to the previous rcu_read_{,un}lock_trace(), the new
API avoid the task_struct accesses thanks to the SRCU-fast semantics.
As a result, the old rcu_read{,un}lock_trace() API is now deprecated.
- RCU Torture Test:
- Multiple improvements on kvm-series.sh (parallel run and
progress showing metrics)
- Add context checks to rcu_torture_timer()
- Make config2csv.sh properly handle comments in .boot files
- Include commit discription in testid.txt
- Miscellaneous RCU changes:
- Reduce synchronize_rcu() latency by reporting GP kthread's
CPU QS early
- Use suitable gfp_flags for the init_srcu_struct_nodes()
- Fix rcu_read_unlock() deadloop due to softirq
- Correctly compute probability to invoke ->exp_current()
in rcutorture
- Make expedited RCU CPU stall warnings detect stall-end races
- RCU nocb:
- Remove unnecessary WakeOvfIsDeferred wake path and callback
overload handling
- Extract nocb_defer_wakeup_cancel() helper
* tag 'rcu.release.v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux: (25 commits)
rcu/nocb: Extract nocb_defer_wakeup_cancel() helper
rcu/nocb: Remove dead callback overload handling
rcu/nocb: Remove unnecessary WakeOvfIsDeferred wake path
rcu: Reduce synchronize_rcu() latency by reporting GP kthread's CPU QS early
srcu: Use suitable gfp_flags for the init_srcu_struct_nodes()
rcu: Fix rcu_read_unlock() deadloop due to softirq
rcutorture: Correctly compute probability to invoke ->exp_current()
rcu: Make expedited RCU CPU stall warnings detect stall-end races
rcutorture: Add --kill-previous option to terminate previous kvm.sh runs
rcutorture: Prevent concurrent kvm.sh runs on same source tree
torture: Include commit discription in testid.txt
torture: Make config2csv.sh properly handle comments in .boot files
torture: Make kvm-series.sh give run numbers and totals
torture: Make kvm-series.sh give build numbers and totals
torture: Parallelize kvm-series.sh guest-OS execution
rcutorture: Add context checks to rcu_torture_timer()
rcutorture: Test rcu_tasks_trace_expedite_current()
srcu: Create an rcu_tasks_trace_expedite_current() function
checkpatch: Deprecate rcu_read_{,un}lock_trace()
rcu: Update Requirements.rst for RCU Tasks Trace
...
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kunit updates from Shuah Khan:
"kunit:
- add __rust_helper to helpers
- fix up const mismatch in many assert functions
- fix up const mismatch in test_list_sort
- protect KUNIT_BINARY_STR_ASSERTION against ERR_PTR values
- respect KBUILD_OUTPUT env variable by default
- add bash completion
kunit tool:
- add test for nested test result reporting
- do not overwrite test status based on subtest counts
- add 32-bit big endian ARM configuration to qemu_configs
- rename test_data_path() to _test_data_path()
- do not rely on implicit working directory change"
* tag 'linux_kselftest-kunit-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
kunit: add bash completion
kunit: tool: test: Don't rely on implicit working directory change
kunit: tool: test: Rename test_data_path() to _test_data_path()
kunit: qemu_configs: Add 32-bit big endian ARM configuration
kunit: tool: Don't overwrite test status based on subtest counts
kunit: tool: Add test for nested test result reporting
kunit: respect KBUILD_OUTPUT env variable by default
kunit: Protect KUNIT_BINARY_STR_ASSERTION against ERR_PTR values
test_list_sort: fix up const mismatch
kunit: fix up const mis-match in many assert functions
rust: kunit: add __rust_helper to helpers
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 updates for 7.0
- Add support for FEAT_IDST, allowing ID registers that are not
implemented to be reported as a normal trap rather than as an UNDEF
exception.
- Add sanitisation of the VTCR_EL2 register, fixing a number of
UXN/PXN/XN bugs in the process.
- Full handling of RESx bits, instead of only RES0, and resulting in
SCTLR_EL2 being added to the list of sanitised registers.
- More pKVM fixes for features that are not supposed to be exposed to
guests.
- Make sure that MTE being disabled on the pKVM host doesn't give it
the ability to attack the hypervisor.
- Allow pKVM's host stage-2 mappings to use the Force Write Back
version of the memory attributes by using the "pass-through'
encoding.
- Fix trapping of ICC_DIR_EL1 on GICv5 hosts emulating GICv3 for the
guest.
- Preliminary work for guest GICv5 support.
- A bunch of debugfs fixes, removing pointless custom iterators stored
in guest data structures.
- A small set of FPSIMD cleanups.
- Selftest fixes addressing the incorrect alignment of page
allocation.
- Other assorted low-impact fixes and spelling fixes.
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v7.0
This release is almost all abut driers, there's very little core work
here, although some of that driver work is in more generic areas like
SDCA and SOF:
- Generic SDCA support for reporting jack events.
- Continuing platform support, cleanup and feature improements for the
AMD, Intel, Qualcomm and SOF code.
- Platform description improvements for the Cirrus drivers.
- Support for NXP i.MX952, Realtek RT1320 and RT5575, and Sophogo
CV1800B.
We also pulled in one small SPI API update and some more substantial
regmap work (cache description improvements) for use in drivers.
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- support for new firmware handling in intel-ish-hid (Vishnu Sankar)
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Introduce a mechanism for managing global kernel state whose lifecycle is
tied to the preservation of one or more files. This is necessary for
subsystems where multiple preserved file descriptors depend on a single,
shared underlying resource.
An example is HugeTLB, where multiple file descriptors such as memfd and
guest_memfd may rely on the state of a single HugeTLB subsystem.
Preserving this state for each individual file would be redundant and
incorrect. The state should be preserved only once when the first file is
preserved, and restored/finished only once the last file is handled.
This patch introduces File-Lifecycle-Bound (FLB) objects to solve this
problem. An FLB is a global, reference-counted object with a defined set
of operations:
- A file handler (struct liveupdate_file_handler) declares a dependency
on one or more FLBs via a new registration function,
liveupdate_register_flb().
- When the first file depending on an FLB is preserved, the FLB's
.preserve() callback is invoked to save the shared global state. The
reference count is then incremented for each subsequent file.
- Conversely, when the last file is unpreserved (before reboot) or
finished (after reboot), the FLB's .unpreserve() or .finish() callback
is invoked to clean up the global resource.
The implementation includes:
- A new set of ABI definitions (luo_flb_ser, luo_flb_head_ser) and a
corresponding FDT node (luo-flb) to serialize the state of all active
FLBs and pass them via Kexec Handover.
- Core logic in luo_flb.c to manage FLB registration, reference
counting, and the invocation of lifecycle callbacks.
- An API (liveupdate_flb_get/_incoming/_outgoing) for other kernel
subsystems to safely access the live object managed by an FLB, both
before and after the live update.
This framework provides the necessary infrastructure for more complex
subsystems like IOMMU, VFIO, and KVM to integrate with the Live Update
Orchestrator.
Link: https://lkml.kernel.org/r/20251218155752.3045808-5-pasha.tatashin@soleen.com
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: David Gow <davidgow@google.com>
Cc: David Matlack <dmatlack@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kees Cook <kees@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Pratyush Yadav <pratyush@kernel.org>
Cc: Samiullah Khawaja <skhawaja@google.com>
Cc: Tamir Duberstein <tamird@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Patch series "list private v2 & luo flb", v9.
This series introduces two connected infrastructure improvements: a new
API for handling private linked lists, and the "File-Lifecycle-Bound"
(FLB) mechanism for the Live Update Orchestrator.
1. Private List Primitives (patches 1-3)
Recently, Linux introduced the ability to mark structure members as
__private and access them via ACCESS_PRIVATE(). This enforces better
encapsulation by ensuring internal details are only accessible by the
owning subsystem.
However, struct list_head is frequently used as an internal linkage
mechanism within these private sections. The standard macros in
<linux/list.h> do not support ACCESS_PRIVATE() natively. Consequently,
subsystems using private lists are forced to implement ad-hoc
workarounds or local iterator macros.
This series adds <linux/list_private.h>, providing a set of
primitives identical to those in <linux/list.h> but designed for
private list heads. It also includes a KUnit test suite to verify that
the macros correctly handle pointer offsets and qualifiers.
2. This series adds FLB (patches 4-5) support to Live Update that also
internally uses private lists.
FLB allows global kernel state (such as IOMMU domains or HugeTLB
state) to be preserved once, shared across multiple file descriptors,
and restored when needed. This is necessary for subsystems where
multiple preserved file descriptors depend on a single, shared
underlying resource. Preserving this state for each individual file
would be redundant and incorrect.
FLB uses reference counting tied to the lifecycle of preserved
files. The state is preserved when the first file depending on it is
preserved, and restored or cleaned up only when the last file is
handled.
This patch (of 5):
Linux recently added an ability to add private members to structs (i.e.
__private) and access them via ACCESS_PRIVATE(). This ensures that those
members are only accessible by the subsystem which owns the struct type,
and not to the object owner.
However, struct list_head often needs to be placed into the private
section to be manipulated privately by the subsystem.
Add macros to support private list manipulations in
<linux/list_private.h>.
[akpm@linux-foundation.org: fix kerneldoc]
Link: https://lkml.kernel.org/r/20251218155752.3045808-1-pasha.tatashin@soleen.com
Link: https://lkml.kernel.org/r/20251218155752.3045808-2-pasha.tatashin@soleen.com
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Alexander Graf <graf@amazon.com>
Cc: David Gow <davidgow@google.com>
Cc: David Matlack <dmatlack@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kees Cook <kees@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Pratyush Yadav <pratyush@kernel.org>
Cc: Samiullah Khawaja <skhawaja@google.com>
Cc: Tamir Duberstein <tamird@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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"make htmldocs" reports build errors/warnings:
Documentation/hwmon/stef48h28.rst:45: ERROR: Missing matching underline for section title overline.
=========================================================
in1_label "vin".
in1_input Measured voltage. From READ_VIN register. [docutils]
Documentation/hwmon/stef48h28.rst:73: WARNING: Title underline too short.
temp2_input Measured temperature. From READ_TEMPERATURE_2 register.
========================================================= [docutils]
Fix the table overline/underline line lengths and convert it to
a 2-column table.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20260128002200.1665941-1-rdunlap@infradead.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add Support for HiTRON HAC300S PSU. This is a AC/DC hot-swappable
CompactPCI Serial Dual output active current sharing switching power
supply with a 312W rating.
Signed-off-by: Vasileios Amoiridis <vasileios.amoiridis@cern.ch>
Link: https://lore.kernel.org/r/20260119190806.35276-3-vassilisamir@gmail.com
[groeck: Fix whitespace / alignment problems; return -ENODATA from
hac300s_read_byte_data() if the PMBus core can handle the operation]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add HiTRON HAC300S PSU to trivial devices since it is simple PMBUS
capable device.
Since this is the first supported device from this vendor, document its
name to the vendor-prefixes.yaml file as well.
Signed-off-by: Vasileios Amoiridis <vasileios.amoiridis@cern.ch>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260119190806.35276-2-vassilisamir@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Implement reading temperature thresholds through
EC_CMD_THERMAL_GET_THRESHOLD/EC_CMD_THERMAL_SET_THRESHOLD.
Thresholds are mapped as follows between the EC and hwmon:
hwmon_temp_max - EC_TEMP_THRESH_WARN
hwmon_temp_crit - EC_TEMP_THRESH_HIGH
hwmon_temp_emergency - EC_TEMP_THRESH_HALT
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20260118-cros_ec-hwmon-pwm-v2-4-77eb1709b031@weissschuh.net
[groeck: Rearrange code to no longer use unreachable() since that causes
a hiccup with some versions of gcc and objtool]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Add a new module parameter 'panic_on_stall_time' that triggers a panic
when a workqueue stall persists for longer than the specified duration
in seconds.
Unlike 'panic_on_stall' which counts accumulated stall events, this
parameter triggers based on the duration of a single continuous stall.
This is useful for catching truly stuck workqueues rather than
accumulating transient stalls.
Usage:
workqueue.panic_on_stall_time=120
This would panic if any workqueue pool has been stalled for 120 seconds
or more.
The stall duration is measured from the workqueue last progress
(poll_ts) which accounts for legitimate system stalls.
Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
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The following warnings were visible:
$ ./scripts/kernel-doc -Wall -none \
net/mptcp/ include/net/mptcp.h include/uapi/linux/mptcp*.h \
include/trace/events/mptcp.h
Warning: net/mptcp/token.c:108 No description found for return value of 'mptcp_token_new_request'
Warning: net/mptcp/token.c:151 No description found for return value of 'mptcp_token_new_connect'
Warning: net/mptcp/token.c:246 No description found for return value of 'mptcp_token_get_sock'
Warning: net/mptcp/token.c:298 No description found for return value of 'mptcp_token_iter_next'
Warning: net/mptcp/protocol.c:4431 No description found for return value of 'mptcp_splice_read'
Warning: include/uapi/linux/mptcp_pm.h:13 missing initial short description on line:
* enum mptcp_event_type
Address all of them: either by using the 'Return:' keyword, or by adding
a missing initial short description.
The MPTCP CI will soon report issues with kdoc to avoid introducing new
issues and being flagged by the Netdev CI.
Reviewed-by: Geliang Tang <geliang@kernel.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260205-net-mptcp-misc-fixes-6-19-rc8-v2-3-c2720ce75c34@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This is a USB HID device which includes an I2C controller and 8 GPIO pins.
The binding allows describing the chip's gpio and i2c controller in DT,
with the i2c controller being bound to a subnode named "i2c". This is
intended to be used in configurations where the CP2112 is permanently
connected in hardware.
Signed-off-by: Danny Kaehn <danny.kaehn@plexus.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260127-cp2112-dt-v13-1-6448ddd4bf22@plexus.com
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- Fix documentation typos (Shawn Lin)
- Add struct p2pdma_provider kernel doc (Leon Romanovsky)
- Remove useless devres WARN_ON() (Philipp Stanner)
* pci/misc:
PCI: Remove useless WARN_ON() from devres
PCI/P2PDMA: Add missing struct p2pdma_provider documentation
Documentation: PCI: Fix typos in msi-howto.rst
|
