mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-08-05 16:54:27 +00:00
833 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Onur Özkan
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2a7b4b228c
|
rust: replace literals with constants in clk::Hertz
Replaces repeated numeric literals in `Hertz` conversions with named constants. Signed-off-by: Onur Özkan <work@onurozkan.dev> Link: https://lore.kernel.org/r/20250618092810.29370-1-work@onurozkan.dev Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Onur Özkan
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b112dfc74b
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rust: shorten con_ids in get methods in clk module
Converts `if-else` blocks into one line code using `map_or` for simplicity. Signed-off-by: Onur Özkan <work@onurozkan.dev> Link: https://lore.kernel.org/r/20250618093508.16343-1-work@onurozkan.dev Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Onur Özkan
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bbbaea850e
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rust: make clk::Hertz methods const
Marks `Hertz` methods as `const` to make them available for `const` contexts. This can be useful when defining static/compile-time frequency parameters in drivers/subsystems. Signed-off-by: Onur Özkan <work@onurozkan.dev> Link: https://lore.kernel.org/r/20250618091442.29104-1-work@onurozkan.dev Reviewed-by: Alice Ryhl <aliceryhl@google.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org> |
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Abhinav Ananthu
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10bb7f09e3 |
rust: cpufreq: Ensure C ABI compatibility in all unsafe
Update all `unsafe extern "C"` callback functions in the cpufreq module to use `kernel::ffi` types (`c_int`, `c_uint`, etc.) instead of Rust-native types like `i32`, `u32`, or `usize`. This change ensures that all Rust callbacks have signatures that are ABI-compatible with their corresponding C counterparts, which is critical for FFI correctness and safety. Suggested-by: Miguel Ojeda <ojeda@kernel.org> Link: https://github.com/Rust-for-Linux/linux/issues/1170 Signed-off-by: Abhinav Ananthu <abhinav.ogl@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> |
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Linus Torvalds
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229f135e06 |
Driver core fixes for 6.16-rc3
- Fix a race condition in Devres::drop(). This depends on two other
patches:
- (Minimal) Rust abstractions for struct completion.
- Let Revocable indicate whether its data is already being revoked.
- Fix Devres to avoid exposing the internal Revocable.
- Add .mailmap entry for Danilo Krummrich.
- Add Madhavan Srinivasan to embargoed-hardware-issues.rst.
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Merge tag 'driver-core-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core
Pull driver core fixes from Danilo Krummrich:
- Fix a race condition in Devres::drop(). This depends on two other
patches:
- (Minimal) Rust abstractions for struct completion
- Let Revocable indicate whether its data is already being revoked
- Fix Devres to avoid exposing the internal Revocable
- Add .mailmap entry for Danilo Krummrich
- Add Madhavan Srinivasan to embargoed-hardware-issues.rst
* tag 'driver-core-6.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core:
Documentation: embargoed-hardware-issues.rst: Add myself for Power
mailmap: add entry for Danilo Krummrich
rust: devres: do not dereference to the internal Revocable
rust: devres: fix race in Devres::drop()
rust: revocable: indicate whether `data` has been revoked already
rust: completion: implement initial abstraction
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Alexandre Courbot
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f86c0036c7 |
rust: alloc: implement Borrow and BorrowMut for KBox
Implement `Borrow<T>` and `BorrowMut<T>` for `KBox<T>`. This allows `KBox<T>` to be used in generic APIs asking for types implementing those traits. `T` and `&mut T` also implement those traits allowing users to use either owned, borrowed and heap-owned values. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Link: https://lore.kernel.org/r/20250616-borrow_impls-v4-3-36f9beb3fe6a@nvidia.com Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Alexandre Courbot
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c09a8ac1cd |
rust: alloc: implement Borrow and BorrowMut for Vec
Implement `Borrow<[T]>` and `BorrowMut<[T]>` for `Vec<T>`. This allows `Vec<T>` to be used in generic APIs asking for types implementing those traits. `[T; N]` and `&mut [T]` also implement those traits allowing users to use either owned, borrowed and heap-owned values. The implementation leverages `as_slice` and `as_mut_slice`. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Link: https://lore.kernel.org/r/20250616-borrow_impls-v4-1-36f9beb3fe6a@nvidia.com Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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FUJITA Tomonori
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cc6d1098b4 |
rust: time: Add ktime_get() to ClockSource trait
Introduce the ktime_get() associated function to the ClockSource trait, allowing each clock source to specify how it retrieves the current time. This enables Instant::now() to be implemented generically using the type-level ClockSource abstraction. This change enhances the type safety and extensibility of timekeeping by statically associating time retrieval mechanisms with their respective clock types. It also reduces the reliance on hardcoded clock logic within Instant. Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com> Link: https://lore.kernel.org/r/20250610093258.3435874-4-fujita.tomonori@gmail.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> |
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FUJITA Tomonori
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768dfbfc98 |
rust: time: Make Instant generic over ClockSource
Refactor the Instant type to be generic over a ClockSource type parameter, enabling static enforcement of clock correctness across APIs that deal with time. Previously, the clock source was implicitly fixed (typically CLOCK_MONOTONIC), and developers had to ensure compatibility manually. This design eliminates runtime mismatches between clock sources, and enables stronger type-level guarantees throughout the timer subsystem. Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com> Link: https://lore.kernel.org/r/20250610093258.3435874-3-fujita.tomonori@gmail.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> |
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FUJITA Tomonori
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1664a671be |
rust: time: Replace ClockId enum with ClockSource trait
Replace the ClockId enum with a trait-based abstraction called ClockSource. This change enables expressing clock sources as types and leveraging the Rust type system to enforce clock correctness at compile time. This also sets the stage for future generic abstractions over Instant types such as Instant<C>. Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com> Link: https://lore.kernel.org/r/20250610093258.3435874-2-fujita.tomonori@gmail.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> |
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FUJITA Tomonori
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1b7bbd5975 |
rust: time: Avoid 64-bit integer division on 32-bit architectures
Avoid 64-bit integer division that 32-bit architectures don't implement generally. This uses ktime_to_us() and ktime_to_ms() instead. The time abstraction needs i64 / u32 division so C's div_s64() can be used but ktime_to_us() and ktime_to_ms() provide a simpler solution for this time abstraction problem on 32-bit architectures. 32-bit ARM is the only 32-bit architecture currently supported by Rust. Using the cfg attribute, only 32-bit architectures will call ktime_to_us() and ktime_to_ms(), while the other 64-bit architectures will continue to use the current code as-is to avoid the overhead. One downside of calling the C's functions is that the as_micros/millis methods can no longer be const fn. We stick with the simpler approach unless there's a compelling need for a const fn. Suggested-by: Arnd Bergmann <arnd@arndb.de> Suggested-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250502004524.230553-1-fujita.tomonori@gmail.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> |
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Linus Torvalds
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588adb24b7 |
Rust fixes for v6.16
'kernel' crate:
- 'hrtimer': fix future compile error when the 'impl_has_hr_timer!'
macro starts to get called.
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Merge tag 'rust-fixes-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull Rust fix from Miguel Ojeda:
- 'hrtimer': fix future compile error when the 'impl_has_hr_timer!'
macro starts to get called
* tag 'rust-fixes-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
rust: time: Fix compile error in impl_has_hr_timer macro
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Danilo Krummrich
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20c96ed278 |
rust: devres: do not dereference to the internal Revocable
We can't expose direct access to the internal Revocable, since this
allows users to directly revoke the internal Revocable without Devres
having the chance to synchronize with the devres callback -- we have to
guarantee that the internal Revocable has been fully revoked before
the device is fully unbound.
Hence, remove the corresponding Deref implementation and, instead,
provide indirect accessors for the internal Revocable.
Note that we can still support Devres::revoke() by implementing the
required synchronization (which would be almost identical to the
synchronization in Devres::drop()).
Fixes:
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Danilo Krummrich
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f744201c61 |
rust: devres: fix race in Devres::drop()
In Devres::drop() we first remove the devres action and then drop the wrapped device resource. The design goal is to give the owner of a Devres object control over when the device resource is dropped, but limit the overall scope to the corresponding device being bound to a driver. However, there's a race that was introduced with commit |
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Danilo Krummrich
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4b76fafb20 |
rust: revocable: indicate whether data has been revoked already
Return a boolean from Revocable::revoke() and Revocable::revoke_nosync() to indicate whether the data has been revoked already. Return true if the data hasn't been revoked yet (i.e. this call revoked the data), false otherwise. This is required by Devres in order to synchronize the completion of the revoke process. Reviewed-by: Benno Lossin <lossin@kernel.org> Acked-by: Miguel Ojeda <ojeda@kernel.org> Link: https://lore.kernel.org/r/20250612121817.1621-3-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Danilo Krummrich
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1b56e765bf |
rust: completion: implement initial abstraction
Implement a minimal abstraction for the completion synchronization primitive. This initial abstraction only adds complete_all() and wait_for_completion(), since that is what is required for the subsequent Devres patch. Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Juri Lelli <juri.lelli@redhat.com> Cc: Vincent Guittot <vincent.guittot@linaro.org> Cc: Dietmar Eggemann <dietmar.eggemann@arm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ben Segall <bsegall@google.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Valentin Schneider <vschneid@redhat.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Acked-by: Miguel Ojeda <ojeda@kernel.org> Link: https://lore.kernel.org/r/20250612121817.1621-2-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Remo Senekowitsch
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2db611374c |
rust: device: Implement accessors for firmware properties
Add methods to FwNode for reading several firmware property types like strings, integers and arrays. Most types are read with the generic `property_read` method. There are two exceptions: * `property_read_bool` cannot fail, so the fallible function signature of `property_read` would not make sense for reading booleans. * `property_read_array_vec` can fail because of a dynamic memory allocation. This error must be handled separately, leading to a different function signature than `property_read`. The traits `Property` and `PropertyInt` drive the generic behavior of `property_read`. `PropertyInt` is necessary to associate specific integer types with the C functions to read them. While there is a C function to read integers of generic sizes called `fwnode_property_read_int_array`, it was preferred not to make this public. Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Co-developed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Remo Senekowitsch <remo@buenzli.dev> Link: https://lore.kernel.org/r/20250611102908.212514-7-remo@buenzli.dev [ Properly include kernel::device::private::Sealed; add explicit type annotations for core::mem::transmute(). - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Remo Senekowitsch
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9bd791d941 |
rust: device: Introduce PropertyGuard
This abstraction is a way to force users to specify whether a property is supposed to be required or not. This allows us to move error logging of missing required properties into core, preventing a lot of boilerplate in drivers. It will be used by upcoming methods for reading device properties. Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Remo Senekowitsch <remo@buenzli.dev> Link: https://lore.kernel.org/r/20250611102908.212514-6-remo@buenzli.dev [ Use prelude::* to avoid build failure; move PropertyGuard below Display impl of FwNode. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Remo Senekowitsch
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ecea245981 |
rust: device: Enable printing fwnode name and path
Add two new public methods `display_name` and `display_path` to `FwNode`. They can be used by driver authors for logging purposes. In addition, they will be used by core property abstractions for automatic logging, for example when a driver attempts to read a required but missing property. Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Remo Senekowitsch <remo@buenzli.dev> Link: https://lore.kernel.org/r/20250611102908.212514-5-remo@buenzli.dev [ Remove #[expect(dead_code)] from FwNode::from_raw(). - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Remo Senekowitsch
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d3393e8450 |
rust: device: Move property_present() to FwNode
The new FwNode abstraction will be used for accessing all device properties. It would be possible to duplicate the methods on the device itself, but since some of the methods on Device would have different type sigatures as the ones on FwNode, this would only lead to inconsistency and confusion. For this reason, property_present is removed from Device and existing users are updated. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Remo Senekowitsch <remo@buenzli.dev> Link: https://lore.kernel.org/r/20250611102908.212514-4-remo@buenzli.dev Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Remo Senekowitsch
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658f23b592 |
rust: device: Enable accessing the FwNode of a Device
Subsequent patches will add methods for reading properties to FwNode. The first step to accessing these methods will be to access the "root" FwNode of a Device. Add the method `fwnode` to `Device`. Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Remo Senekowitsch <remo@buenzli.dev> Link: https://lore.kernel.org/r/20250611102908.212514-3-remo@buenzli.dev Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Remo Senekowitsch
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a2801affa7 |
rust: device: Create FwNode abstraction for accessing device properties
Accessing device properties is currently done via methods on `Device` itself, using bindings to device_property_* functions. This is sufficient for the existing method property_present. However, it's not sufficient for other device properties we want to access. For example, iterating over child nodes of a device will yield a fwnode_handle. That's not a device, so it wouldn't be possible to read the properties of that child node. Thus, we need an abstraction over fwnode_handle and methods for reading its properties. Add a struct FwNode which abstracts over the C struct fwnode_handle. Implement its reference counting analogous to other Rust abstractions over reference-counted C structs. Subsequent patches will add functionality to access FwNode and read properties with it. Tested-by: Dirk Behme <dirk.behme@de.bosch.com> Signed-off-by: Remo Senekowitsch <remo@buenzli.dev> Link: https://lore.kernel.org/r/20250611102908.212514-2-remo@buenzli.dev [ Add temporary #[expect(dead_code)] to avoid a warning. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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Viresh Kumar
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c7f005f70d |
rust: cpu: Add CpuId::current() to retrieve current CPU ID
Introduce `CpuId::current()`, a constructor that wraps the C function `raw_smp_processor_id()` to retrieve the current CPU identifier without guaranteeing stability. This function should be used only when the caller can ensure that the CPU ID won't change unexpectedly due to preemption or migration. Suggested-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> |
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Viresh Kumar
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33db8c97b4 |
rust: Use CpuId in place of raw CPU numbers
Use the newly defined `CpuId` abstraction instead of raw CPU numbers.
This also fixes a doctest failure for configurations where `nr_cpu_ids <
4`.
The C `cpumask_{set|clear}_cpu()` APIs emit a warning when given an
invalid CPU number — but only if `CONFIG_DEBUG_PER_CPU_MAPS=y` is set.
Meanwhile, `cpumask_weight()` only considers CPUs up to `nr_cpu_ids`,
which can cause inconsistencies: a CPU number greater than `nr_cpu_ids`
may be set in the mask, yet the weight calculation won't reflect it.
This leads to doctest failures when `nr_cpu_ids < 4`, as the test tries
to set CPUs 2 and 3:
rust_doctest_kernel_cpumask_rs_0.location: rust/kernel/cpumask.rs:180
rust_doctest_kernel_cpumask_rs_0: ASSERTION FAILED at rust/kernel/cpumask.rs:190
Fixes:
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Viresh Kumar
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ebf2e500e0 |
rust: cpu: Introduce CpuId abstraction
This adds abstraction for representing a CPU identifier. Suggested-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> |
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Miguel Ojeda
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f744a5b68e |
rust: init: remove doctest's Error::from_errno workaround
Since commit |
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Miguel Ojeda
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d2b7313fa2 |
rust: init: re-enable doctests
Commit |
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Benno Lossin
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e832374cca |
rust: pin-init: change blanket impls for [Pin]Init and add one for Result<T, E>
Remove the error from the blanket implementations `impl<T, E> Init<T, E>
for T` (and also for `PinInit`). Add implementations for `Result<T, E>`.
This allows one to easily construct (un)conditional failing
initializers. It also improves the compatibility with APIs that do not
use pin-init, because users can supply a `Result<T, E>` to a function
taking an `impl PinInit<T, E>`.
Suggested-by: Alice Ryhl <aliceryhl@google.com>
Link:
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Benno Lossin
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101b7cf006 |
rust: pin-init: rename zeroed to init_zeroed
The name `zeroed` is a much better fit for a function that returns the
type by-value.
Link:
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Alice Ryhl
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47d8101924 |
rust: vec: impl Default for Vec with any allocator
The implementation of Default is restricted to only work with kmalloc vectors for no good reason. This means I have to use mem::replace(&mut my_vec, KVVec::new()) in Rust Binder instead of `mem::take(&mut my_vec)`. Thus, expand the impl of Default to work with any allocator including kvmalloc. Signed-off-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Link: https://lore.kernel.org/r/20250610-vec-default-v1-1-7bb2c97d75a0@google.com Signed-off-by: Danilo Krummrich <dakr@kernel.org> |
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FUJITA Tomonori
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5b2d595efb |
rust: time: Fix compile error in impl_has_hr_timer macro
Fix a compile error in the `impl_has_hr_timer!` macro as follows:
error[E0599]: no method named cast_mut found for raw pointer *mut Foo in the current scope
The `container_of!` macro already returns a mutable pointer when used
in a `*mut T` context so the `.cast_mut()` method is not available.
[ We missed this one because there is no caller yet and it is
a macro. - Miguel ]
Fixes:
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Viresh Kumar
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4823a58093 |
cpufreq: Convert /// SAFETY lines to # Safety sections
Replace `/// SAFETY` comments in doc comments with proper `# Safety` sections, as per rustdoc conventions. Also mark the C FFI callbacks as `unsafe` to correctly reflect their safety requirements. Reported-by: Miguel Ojeda <ojeda@kernel.org> Closes: https://github.com/Rust-for-Linux/linux/issues/1169 Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> |
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Linus Torvalds
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c26f4fbd58 |
Char/Misc/IIO pull request for 6.16-rc1
Here is the big char/misc/iio and other small driver subsystem pull
request for 6.16-rc1.
Overall, a lot of individual changes, but nothing major, just the normal
constant forward progress of new device support and cleanups to existing
subsystems. Highlights in here are:
- Large IIO driver updates and additions and device tree changes
- Android binder bugfixes and logfile fixes
- mhi driver updates
- comedi driver updates
- counter driver updates and additions
- coresight driver updates and additions
- echo driver removal as there are no in-kernel users of it
- nvmem driver updates
- spmi driver updates
- new amd-sbi driver "subsystem" and drivers added
- rust miscdriver binding documentation fix
- other small driver fixes and updates (uio, w1, acrn, hpet, xillybus,
cardreader drivers, fastrpc and others.)
All of these have been in linux-next for quite a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char / misc / iio driver updates from Greg KH:
"Here is the big char/misc/iio and other small driver subsystem pull
request for 6.16-rc1.
Overall, a lot of individual changes, but nothing major, just the
normal constant forward progress of new device support and cleanups to
existing subsystems. Highlights in here are:
- Large IIO driver updates and additions and device tree changes
- Android binder bugfixes and logfile fixes
- mhi driver updates
- comedi driver updates
- counter driver updates and additions
- coresight driver updates and additions
- echo driver removal as there are no in-kernel users of it
- nvmem driver updates
- spmi driver updates
- new amd-sbi driver "subsystem" and drivers added
- rust miscdriver binding documentation fix
- other small driver fixes and updates (uio, w1, acrn, hpet,
xillybus, cardreader drivers, fastrpc and others)
All of these have been in linux-next for quite a while with no
reported problems"
* tag 'char-misc-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (390 commits)
binder: fix yet another UAF in binder_devices
counter: microchip-tcb-capture: Add watch validation support
dt-bindings: iio: adc: Add ROHM BD79100G
iio: adc: add support for Nuvoton NCT7201
dt-bindings: iio: adc: add NCT7201 ADCs
iio: chemical: Add driver for SEN0322
dt-bindings: trivial-devices: Document SEN0322
iio: adc: ad7768-1: reorganize driver headers
iio: bmp280: zero-init buffer
iio: ssp_sensors: optimalize -> optimize
HID: sensor-hub: Fix typo and improve documentation
iio: admv1013: replace redundant ternary operator with just len
iio: chemical: mhz19b: Fix error code in probe()
iio: adc: at91-sama5d2: use IIO_DECLARE_BUFFER_WITH_TS
iio: accel: sca3300: use IIO_DECLARE_BUFFER_WITH_TS
iio: adc: ad7380: use IIO_DECLARE_DMA_BUFFER_WITH_TS
iio: adc: ad4695: rename AD4695_MAX_VIN_CHANNELS
iio: adc: ad4695: use IIO_DECLARE_DMA_BUFFER_WITH_TS
iio: introduce IIO_DECLARE_BUFFER_WITH_TS macros
iio: make IIO_DMA_MINALIGN minimum of 8 bytes
...
|
||
|
Linus Torvalds
|
ec7714e494 |
Rust changes for v6.16
Toolchain and infrastructure:
- KUnit '#[test]'s:
- Support KUnit-mapped 'assert!' macros.
The support that landed last cycle was very basic, and the
'assert!' macros panicked since they were the standard library
ones. Now, they are mapped to the KUnit ones in a similar way to
how is done for doctests, reusing the infrastructure there.
With this, a failing test like:
#[test]
fn my_first_test() {
assert_eq!(42, 43);
}
will report:
# my_first_test: ASSERTION FAILED at rust/kernel/lib.rs:251
Expected 42 == 43 to be true, but is false
# my_first_test.speed: normal
not ok 1 my_first_test
- Support tests with checked 'Result' return types.
The return value of test functions that return a 'Result' will be
checked, thus one can now easily catch errors when e.g. using the
'?' operator in tests.
With this, a failing test like:
#[test]
fn my_test() -> Result {
f()?;
Ok(())
}
will report:
# my_test: ASSERTION FAILED at rust/kernel/lib.rs:321
Expected is_test_result_ok(my_test()) to be true, but is false
# my_test.speed: normal
not ok 1 my_test
- Add 'kunit_tests' to the prelude.
- Clarify the remaining language unstable features in use.
- Compile 'core' with edition 2024 for Rust >= 1.87.
- Workaround 'bindgen' issue with forward references to 'enum' types.
- objtool: relax slice condition to cover more 'noreturn' functions.
- Use absolute paths in macros referencing 'core' and 'kernel' crates.
- Skip '-mno-fdpic' flag for bindgen in GCC 32-bit arm builds.
- Clean some 'doc_markdown' lint hits -- we may enable it later on.
'kernel' crate:
- 'alloc' module:
- 'Box': support for type coercion, e.g. 'Box<T>' to 'Box<dyn U>' if
'T' implements 'U'.
- 'Vec': implement new methods (prerequisites for nova-core and
binder): 'truncate', 'resize', 'clear', 'pop',
'push_within_capacity' (with new error type 'PushError'),
'drain_all', 'retain', 'remove' (with new error type
'RemoveError'), insert_within_capacity' (with new error type
'InsertError').
In addition, simplify 'push' using 'spare_capacity_mut', split
'set_len' into 'inc_len' and 'dec_len', add type invariant
'len <= capacity' and simplify 'truncate' using 'dec_len'.
- 'time' module:
- Morph the Rust hrtimer subsystem into the Rust timekeeping
subsystem, covering delay, sleep, timekeeping, timers. This new
subsystem has all the relevant timekeeping C maintainers listed in
the entry.
- Replace 'Ktime' with 'Delta' and 'Instant' types to represent a
duration of time and a point in time.
- Temporarily add 'Ktime' to 'hrtimer' module to allow 'hrtimer' to
delay converting to 'Instant' and 'Delta'.
- 'xarray' module:
- Add a Rust abstraction for the 'xarray' data structure. This
abstraction allows Rust code to leverage the 'xarray' to store
types that implement 'ForeignOwnable'. This support is a dependency
for memory backing feature of the Rust null block driver, which is
waiting to be merged.
- Set up an entry in 'MAINTAINERS' for the XArray Rust support.
Patches will go to the new Rust XArray tree and then via the Rust
subsystem tree for now.
- Allow 'ForeignOwnable' to carry information about the pointed-to
type. This helps asserting alignment requirements for the pointer
passed to the foreign language.
- 'container_of!': retain pointer mut-ness and add a compile-time check
of the type of the first parameter ('$field_ptr').
- Support optional message in 'static_assert!'.
- Add C FFI types (e.g. 'c_int') to the prelude.
- 'str' module: simplify KUnit tests 'format!' macro, convert
'rusttest' tests into KUnit, take advantage of the '-> Result'
support in KUnit '#[test]'s.
- 'list' module: add examples for 'List', fix path of 'assert_pinned!'
(so far unused macro rule).
- 'workqueue' module: remove 'HasWork::OFFSET'.
- 'page' module: add 'inline' attribute.
'macros' crate:
- 'module' macro: place 'cleanup_module()' in '.exit.text' section.
'pin-init' crate:
- Add 'Wrapper<T>' trait for creating pin-initializers for wrapper
structs with a structurally pinned value such as 'UnsafeCell<T>' or
'MaybeUninit<T>'.
- Add 'MaybeZeroable' derive macro to try to derive 'Zeroable', but
not error if not all fields implement it. This is needed to derive
'Zeroable' for all bindgen-generated structs.
- Add 'unsafe fn cast_[pin_]init()' functions to unsafely change the
initialized type of an initializer. These are utilized by the
'Wrapper<T>' implementations.
- Add support for visibility in 'Zeroable' derive macro.
- Add support for 'union's in 'Zeroable' derive macro.
- Upstream dev news: streamline CI, fix some bugs. Add new workflows
to check if the user-space version and the one in the kernel tree
have diverged. Use the issues tab [1] to track them, which should
help folks report and diagnose issues w.r.t. 'pin-init' better.
[1] https://github.com/rust-for-linux/pin-init/issues
Documentation:
- Testing: add docs on the new KUnit '#[test]' tests.
- Coding guidelines: explain that '///' vs. '//' applies to private
items too. Add section on C FFI types.
- Quick Start guide: update Ubuntu instructions and split them into
"25.04" and "24.04 LTS and older".
And a few other cleanups and improvements.
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Merge tag 'rust-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull Rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- KUnit '#[test]'s:
- Support KUnit-mapped 'assert!' macros.
The support that landed last cycle was very basic, and the
'assert!' macros panicked since they were the standard library
ones. Now, they are mapped to the KUnit ones in a similar way to
how is done for doctests, reusing the infrastructure there.
With this, a failing test like:
#[test]
fn my_first_test() {
assert_eq!(42, 43);
}
will report:
# my_first_test: ASSERTION FAILED at rust/kernel/lib.rs:251
Expected 42 == 43 to be true, but is false
# my_first_test.speed: normal
not ok 1 my_first_test
- Support tests with checked 'Result' return types.
The return value of test functions that return a 'Result' will
be checked, thus one can now easily catch errors when e.g. using
the '?' operator in tests.
With this, a failing test like:
#[test]
fn my_test() -> Result {
f()?;
Ok(())
}
will report:
# my_test: ASSERTION FAILED at rust/kernel/lib.rs:321
Expected is_test_result_ok(my_test()) to be true, but is false
# my_test.speed: normal
not ok 1 my_test
- Add 'kunit_tests' to the prelude.
- Clarify the remaining language unstable features in use.
- Compile 'core' with edition 2024 for Rust >= 1.87.
- Workaround 'bindgen' issue with forward references to 'enum' types.
- objtool: relax slice condition to cover more 'noreturn' functions.
- Use absolute paths in macros referencing 'core' and 'kernel'
crates.
- Skip '-mno-fdpic' flag for bindgen in GCC 32-bit arm builds.
- Clean some 'doc_markdown' lint hits -- we may enable it later on.
'kernel' crate:
- 'alloc' module:
- 'Box': support for type coercion, e.g. 'Box<T>' to 'Box<dyn U>'
if 'T' implements 'U'.
- 'Vec': implement new methods (prerequisites for nova-core and
binder): 'truncate', 'resize', 'clear', 'pop',
'push_within_capacity' (with new error type 'PushError'),
'drain_all', 'retain', 'remove' (with new error type
'RemoveError'), insert_within_capacity' (with new error type
'InsertError').
In addition, simplify 'push' using 'spare_capacity_mut', split
'set_len' into 'inc_len' and 'dec_len', add type invariant 'len
<= capacity' and simplify 'truncate' using 'dec_len'.
- 'time' module:
- Morph the Rust hrtimer subsystem into the Rust timekeeping
subsystem, covering delay, sleep, timekeeping, timers. This new
subsystem has all the relevant timekeeping C maintainers listed
in the entry.
- Replace 'Ktime' with 'Delta' and 'Instant' types to represent a
duration of time and a point in time.
- Temporarily add 'Ktime' to 'hrtimer' module to allow 'hrtimer'
to delay converting to 'Instant' and 'Delta'.
- 'xarray' module:
- Add a Rust abstraction for the 'xarray' data structure. This
abstraction allows Rust code to leverage the 'xarray' to store
types that implement 'ForeignOwnable'. This support is a
dependency for memory backing feature of the Rust null block
driver, which is waiting to be merged.
- Set up an entry in 'MAINTAINERS' for the XArray Rust support.
Patches will go to the new Rust XArray tree and then via the
Rust subsystem tree for now.
- Allow 'ForeignOwnable' to carry information about the pointed-to
type. This helps asserting alignment requirements for the
pointer passed to the foreign language.
- 'container_of!': retain pointer mut-ness and add a compile-time
check of the type of the first parameter ('$field_ptr').
- Support optional message in 'static_assert!'.
- Add C FFI types (e.g. 'c_int') to the prelude.
- 'str' module: simplify KUnit tests 'format!' macro, convert
'rusttest' tests into KUnit, take advantage of the '-> Result'
support in KUnit '#[test]'s.
- 'list' module: add examples for 'List', fix path of
'assert_pinned!' (so far unused macro rule).
- 'workqueue' module: remove 'HasWork::OFFSET'.
- 'page' module: add 'inline' attribute.
'macros' crate:
- 'module' macro: place 'cleanup_module()' in '.exit.text' section.
'pin-init' crate:
- Add 'Wrapper<T>' trait for creating pin-initializers for wrapper
structs with a structurally pinned value such as 'UnsafeCell<T>' or
'MaybeUninit<T>'.
- Add 'MaybeZeroable' derive macro to try to derive 'Zeroable', but
not error if not all fields implement it. This is needed to derive
'Zeroable' for all bindgen-generated structs.
- Add 'unsafe fn cast_[pin_]init()' functions to unsafely change the
initialized type of an initializer. These are utilized by the
'Wrapper<T>' implementations.
- Add support for visibility in 'Zeroable' derive macro.
- Add support for 'union's in 'Zeroable' derive macro.
- Upstream dev news: streamline CI, fix some bugs. Add new workflows
to check if the user-space version and the one in the kernel tree
have diverged. Use the issues tab [1] to track them, which should
help folks report and diagnose issues w.r.t. 'pin-init' better.
[1] https://github.com/rust-for-linux/pin-init/issues
Documentation:
- Testing: add docs on the new KUnit '#[test]' tests.
- Coding guidelines: explain that '///' vs. '//' applies to private
items too. Add section on C FFI types.
- Quick Start guide: update Ubuntu instructions and split them into
"25.04" and "24.04 LTS and older".
And a few other cleanups and improvements"
* tag 'rust-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (78 commits)
rust: list: Fix typo `much` in arc.rs
rust: check type of `$ptr` in `container_of!`
rust: workqueue: remove HasWork::OFFSET
rust: retain pointer mut-ness in `container_of!`
Documentation: rust: testing: add docs on the new KUnit `#[test]` tests
Documentation: rust: rename `#[test]`s to "`rusttest` host tests"
rust: str: take advantage of the `-> Result` support in KUnit `#[test]`'s
rust: str: simplify KUnit tests `format!` macro
rust: str: convert `rusttest` tests into KUnit
rust: add `kunit_tests` to the prelude
rust: kunit: support checked `-> Result`s in KUnit `#[test]`s
rust: kunit: support KUnit-mapped `assert!` macros in `#[test]`s
rust: make section names plural
rust: list: fix path of `assert_pinned!`
rust: compile libcore with edition 2024 for 1.87+
rust: dma: add missing Markdown code span
rust: task: add missing Markdown code spans and intra-doc links
rust: pci: fix docs related to missing Markdown code spans
rust: alloc: add missing Markdown code span
rust: alloc: add missing Markdown code spans
...
|
||
|
Linus Torvalds
|
fd1f847350 |
- The 2 patch series "zram: support algorithm-specific parameters" from
Sergey Senozhatsky adds infrastructure for passing algorithm-specific parameters into zram. A single parameter `winbits' is implemented at this time. - The 5 patch series "memcg: nmi-safe kmem charging" from Shakeel Butt makes memcg charging nmi-safe, which is required by BFP, which can operate in NMI context. - The 5 patch series "Some random fixes and cleanup to shmem" from Kemeng Shi implements small fixes and cleanups in the shmem code. - The 2 patch series "Skip mm selftests instead when kernel features are not present" from Zi Yan fixes some issues in the MM selftest code. - The 2 patch series "mm/damon: build-enable essential DAMON components by default" from SeongJae Park reworks DAMON Kconfig to make it easier to enable CONFIG_DAMON. - The 2 patch series "sched/numa: add statistics of numa balance task migration" from Libo Chen adds more info into sysfs and procfs files to improve visibility into the NUMA balancer's task migration activity. - The 4 patch series "selftests/mm: cow and gup_longterm cleanups" from Mark Brown provides various updates to some of the MM selftests to make them play better with the overall containing framework. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaDzA9wAKCRDdBJ7gKXxA js8sAP9V3COg+vzTmimzP3ocTkkbbIJzDfM6nXpE2EQ4BR3ejwD+NsIT2ZLtTF6O LqAZpgO7ju6wMjR/lM30ebCq5qFbZAw= =oruw -----END PGP SIGNATURE----- Merge tag 'mm-stable-2025-06-01-14-06' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull more MM updates from Andrew Morton: - "zram: support algorithm-specific parameters" from Sergey Senozhatsky adds infrastructure for passing algorithm-specific parameters into zram. A single parameter `winbits' is implemented at this time. - "memcg: nmi-safe kmem charging" from Shakeel Butt makes memcg charging nmi-safe, which is required by BFP, which can operate in NMI context. - "Some random fixes and cleanup to shmem" from Kemeng Shi implements small fixes and cleanups in the shmem code. - "Skip mm selftests instead when kernel features are not present" from Zi Yan fixes some issues in the MM selftest code. - "mm/damon: build-enable essential DAMON components by default" from SeongJae Park reworks DAMON Kconfig to make it easier to enable CONFIG_DAMON. - "sched/numa: add statistics of numa balance task migration" from Libo Chen adds more info into sysfs and procfs files to improve visibility into the NUMA balancer's task migration activity. - "selftests/mm: cow and gup_longterm cleanups" from Mark Brown provides various updates to some of the MM selftests to make them play better with the overall containing framework. * tag 'mm-stable-2025-06-01-14-06' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (43 commits) mm/khugepaged: clean up refcount check using folio_expected_ref_count() selftests/mm: fix test result reporting in gup_longterm selftests/mm: report unique test names for each cow test selftests/mm: add helper for logging test start and results selftests/mm: use standard ksft_finished() in cow and gup_longterm selftests/damon/_damon_sysfs: skip testcases if CONFIG_DAMON_SYSFS is disabled sched/numa: add statistics of numa balance task sched/numa: fix task swap by skipping kernel threads tools/testing: check correct variable in open_procmap() tools/testing/vma: add missing function stub mm/gup: update comment explaining why gup_fast() disables IRQs selftests/mm: two fixes for the pfnmap test mm/khugepaged: fix race with folio split/free using temporary reference mm: add CONFIG_PAGE_BLOCK_ORDER to select page block order mmu_notifiers: remove leftover stub macros selftests/mm: deduplicate test names in madv_populate kcov: rust: add flags for KCOV with Rust mm: rust: make CONFIG_MMU ifdefs more narrow mmu_gather: move tlb flush for VM_PFNMAP/VM_MIXEDMAP vmas into free_pgtables() mm/damon/Kconfig: enable CONFIG_DAMON by default ... |
||
|
Linus Torvalds
|
fcd0bb8e99 |
vfs-6.16-rc2.fixes
-----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCaD1hUAAKCRCRxhvAZXjc ohIBAQCJQYP7bzg+A7C7K6cA+5LwC1u4aZ424B5puIZrLiEEDQEAxQli95/rTIeE m2DWBDl5rMrKlfmpqGvjbbJldU75swo= =2EhD -----END PGP SIGNATURE----- Merge tag 'vfs-6.16-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs fixes from Christian Brauner: - Fix the AT_HANDLE_CONNECTABLE option so filesystems that don't know how to decode a connected non-dir dentry fail the request - Use repr(transparent) to ensure identical layout between the C and Rust implementation of struct file - Add a missing xas_pause() into the dax code employing wait_entry_unlocked_exclusive() - Fix FOP_DONTCACHE which we disabled for v6.15. A folio could get redirtied and/or scheduled for writeback after the initial dropbehind test. Change the test accordingly to handle these cases so we can re-enable FOP_DONTCACHE again * tag 'vfs-6.16-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: exportfs: require ->fh_to_parent() to encode connectable file handles rust: file: improve safety comments rust: file: mark `LocalFile` as `repr(transparent)` fs/dax: Fix "don't skip locked entries when scanning entries" iomap: don't lose folio dropbehind state for overwrites mm/filemap: unify dropbehind flag testing and clearing mm/filemap: unify read/write dropbehind naming Revert "Disable FOP_DONTCACHE for now due to bugs" mm/filemap: use filemap_end_dropbehind() for read invalidation mm/filemap: gate dropbehind invalidate on folio !dirty && !writeback |
||
|
Alice Ryhl
|
5a78977262 |
mm: rust: make CONFIG_MMU ifdefs more narrow
Currently the entire kernel::mm module is ifdef'd out when CONFIG_MMU=n.
However, there are some downstream users of the module in
rust/kernel/task.rs and rust/kernel/miscdevice.rs. Thus, update the cfgs
so that only MmWithUserAsync is removed with CONFIG_MMU=n.
The code is moved into a new file, since the #[cfg()] annotation
otherwise has to be duplicated several times.
Link: https://lkml.kernel.org/r/20250516193219.2987032-1-aliceryhl@google.com
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202505071753.kldNHYVQ-lkp@intel.com/
Closes: https://lore.kernel.org/oe-kbuild-all/202505072116.eSYC8igT-lkp@intel.com/
Fixes:
|
||
|
Linus Torvalds
|
00c010e130 |
- The 11 patch series "Add folio_mk_pte()" from Matthew Wilcox
simplifies the act of creating a pte which addresses the first page in a folio and reduces the amount of plumbing which architecture must implement to provide this. - The 8 patch series "Misc folio patches for 6.16" from Matthew Wilcox is a shower of largely unrelated folio infrastructure changes which clean things up and better prepare us for future work. - The 3 patch series "memory,x86,acpi: hotplug memory alignment advisement" from Gregory Price adds early-init code to prevent x86 from leaving physical memory unused when physical address regions are not aligned to memory block size. - The 2 patch series "mm/compaction: allow more aggressive proactive compaction" from Michal Clapinski provides some tuning of the (sadly, hard-coded (more sadly, not auto-tuned)) thresholds for our invokation of proactive compaction. In a simple test case, the reduction of a guest VM's memory consumption was dramatic. - The 8 patch series "Minor cleanups and improvements to swap freeing code" from Kemeng Shi provides some code cleaups and a small efficiency improvement to this part of our swap handling code. - The 6 patch series "ptrace: introduce PTRACE_SET_SYSCALL_INFO API" from Dmitry Levin adds the ability for a ptracer to modify syscalls arguments. At this time we can alter only "system call information that are used by strace system call tampering, namely, syscall number, syscall arguments, and syscall return value. This series should have been incorporated into mm.git's "non-MM" branch, but I goofed. - The 3 patch series "fs/proc: extend the PAGEMAP_SCAN ioctl to report guard regions" from Andrei Vagin extends the info returned by the PAGEMAP_SCAN ioctl against /proc/pid/pagemap. This permits CRIU to more efficiently get at the info about guard regions. - The 2 patch series "Fix parameter passed to page_mapcount_is_type()" from Gavin Shan implements that fix. No runtime effect is expected because validate_page_before_insert() happens to fix up this error. - The 3 patch series "kernel/events/uprobes: uprobe_write_opcode() rewrite" from David Hildenbrand basically brings uprobe text poking into the current decade. Remove a bunch of hand-rolled implementation in favor of using more current facilities. - The 3 patch series "mm/ptdump: Drop assumption that pxd_val() is u64" from Anshuman Khandual provides enhancements and generalizations to the pte dumping code. This might be needed when 128-bit Page Table Descriptors are enabled for ARM. - The 12 patch series "Always call constructor for kernel page tables" from Kevin Brodsky "ensures that the ctor/dtor is always called for kernel pgtables, as it already is for user pgtables". This permits the addition of more functionality such as "insert hooks to protect page tables". This change does result in various architectures performing unnecesary work, but this is fixed up where it is anticipated to occur. - The 9 patch series "Rust support for mm_struct, vm_area_struct, and mmap" from Alice Ryhl adds plumbing to permit Rust access to core MM structures. - The 3 patch series "fix incorrectly disallowed anonymous VMA merges" from Lorenzo Stoakes takes advantage of some VMA merging opportunities which we've been missing for 15 years. - The 4 patch series "mm/madvise: batch tlb flushes for MADV_DONTNEED and MADV_FREE" from SeongJae Park optimizes process_madvise()'s TLB flushing. Instead of flushing each address range in the provided iovec, we batch the flushing across all the iovec entries. The syscall's cost was approximately halved with a microbenchmark which was designed to load this particular operation. - The 6 patch series "Track node vacancy to reduce worst case allocation counts" from Sidhartha Kumar makes the maple tree smarter about its node preallocation. stress-ng mmap performance increased by single-digit percentages and the amount of unnecessarily preallocated memory was dramaticelly reduced. - The 3 patch series "mm/gup: Minor fix, cleanup and improvements" from Baoquan He removes a few unnecessary things which Baoquan noted when reading the code. - The 3 patch series ""Enhance sysfs handling for memory hotplug in weighted interleave" from Rakie Kim "enhances the weighted interleave policy in the memory management subsystem by improving sysfs handling, fixing memory leaks, and introducing dynamic sysfs updates for memory hotplug support". Fixes things on error paths which we are unlikely to hit. - The 7 patch series "mm/damon: auto-tune DAMOS for NUMA setups including tiered memory" from SeongJae Park introduces new DAMOS quota goal metrics which eliminate the manual tuning which is required when utilizing DAMON for memory tiering. - The 5 patch series "mm/vmalloc.c: code cleanup and improvements" from Baoquan He provides cleanups and small efficiency improvements which Baoquan found via code inspection. - The 2 patch series "vmscan: enforce mems_effective during demotion" from Gregory Price "changes reclaim to respect cpuset.mems_effective during demotion when possible". because "presently, reclaim explicitly ignores cpuset.mems_effective when demoting, which may cause the cpuset settings to violated." "This is useful for isolating workloads on a multi-tenant system from certain classes of memory more consistently." - The 2 patch series ""Clean up split_huge_pmd_locked() and remove unnecessary folio pointers" from Gavin Guo provides minor cleanups and efficiency gains in in the huge page splitting and migrating code. - The 3 patch series "Use kmem_cache for memcg alloc" from Huan Yang creates a slab cache for `struct mem_cgroup', yielding improved memory utilization. - The 4 patch series "add max arg to swappiness in memory.reclaim and lru_gen" from Zhongkun He adds a new "max" argument to the "swappiness=" argument for memory.reclaim MGLRU's lru_gen. This directs proactive reclaim to reclaim from only anon folios rather than file-backed folios. - The 17 patch series "kexec: introduce Kexec HandOver (KHO)" from Mike Rapoport is the first step on the path to permitting the kernel to maintain existing VMs while replacing the host kernel via file-based kexec. At this time only memblock's reserve_mem is preserved. - The 7 patch series "mm: Introduce for_each_valid_pfn()" from David Woodhouse provides and uses a smarter way of looping over a pfn range. By skipping ranges of invalid pfns. - The 2 patch series "sched/numa: Skip VMA scanning on memory pinned to one NUMA node via cpuset.mems" from Libo Chen removes a lot of pointless VMA scanning when a task is pinned a single NUMA mode. Dramatic performance benefits were seen in some real world cases. - The 2 patch series "JFS: Implement migrate_folio for jfs_metapage_aops" from Shivank Garg addresses a warning which occurs during memory compaction when using JFS. - The 4 patch series "move all VMA allocation, freeing and duplication logic to mm" from Lorenzo Stoakes moves some VMA code from kernel/fork.c into the more appropriate mm/vma.c. - The 6 patch series "mm, swap: clean up swap cache mapping helper" from Kairui Song provides code consolidation and cleanups related to the folio_index() function. - The 2 patch series "mm/gup: Cleanup memfd_pin_folios()" from Vishal Moola does that. - The 8 patch series "memcg: Fix test_memcg_min/low test failures" from Waiman Long addresses some bogus failures which are being reported by the test_memcontrol selftest. - The 3 patch series "eliminate mmap() retry merge, add .mmap_prepare hook" from Lorenzo Stoakes commences the deprecation of file_operations.mmap() in favor of the new file_operations.mmap_prepare(). The latter is more restrictive and prevents drivers from messing with things in ways which, amongst other problems, may defeat VMA merging. - The 4 patch series "memcg: decouple memcg and objcg stocks"" from Shakeel Butt decouples the per-cpu memcg charge cache from the objcg's one. This is a step along the way to making memcg and objcg charging NMI-safe, which is a BPF requirement. - The 6 patch series "mm/damon: minor fixups and improvements for code, tests, and documents" from SeongJae Park is "yet another batch of miscellaneous DAMON changes. Fix and improve minor problems in code, tests and documents." - The 7 patch series "memcg: make memcg stats irq safe" from Shakeel Butt converts memcg stats to be irq safe. Another step along the way to making memcg charging and stats updates NMI-safe, a BPF requirement. - The 4 patch series "Let unmap_hugepage_range() and several related functions take folio instead of page" from Fan Ni provides folio conversions in the hugetlb code. -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTTMBEPP41GrTpTJgfdBJ7gKXxAjgUCaDt5qgAKCRDdBJ7gKXxA ju6XAP9nTiSfRz8Cz1n5LJZpFKEGzLpSihCYyR6P3o1L9oe3mwEAlZ5+XAwk2I5x Qqb/UGMEpilyre1PayQqOnct3aSL9Ao= =tYYm -----END PGP SIGNATURE----- Merge tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: - "Add folio_mk_pte()" from Matthew Wilcox simplifies the act of creating a pte which addresses the first page in a folio and reduces the amount of plumbing which architecture must implement to provide this. - "Misc folio patches for 6.16" from Matthew Wilcox is a shower of largely unrelated folio infrastructure changes which clean things up and better prepare us for future work. - "memory,x86,acpi: hotplug memory alignment advisement" from Gregory Price adds early-init code to prevent x86 from leaving physical memory unused when physical address regions are not aligned to memory block size. - "mm/compaction: allow more aggressive proactive compaction" from Michal Clapinski provides some tuning of the (sadly, hard-coded (more sadly, not auto-tuned)) thresholds for our invokation of proactive compaction. In a simple test case, the reduction of a guest VM's memory consumption was dramatic. - "Minor cleanups and improvements to swap freeing code" from Kemeng Shi provides some code cleaups and a small efficiency improvement to this part of our swap handling code. - "ptrace: introduce PTRACE_SET_SYSCALL_INFO API" from Dmitry Levin adds the ability for a ptracer to modify syscalls arguments. At this time we can alter only "system call information that are used by strace system call tampering, namely, syscall number, syscall arguments, and syscall return value. This series should have been incorporated into mm.git's "non-MM" branch, but I goofed. - "fs/proc: extend the PAGEMAP_SCAN ioctl to report guard regions" from Andrei Vagin extends the info returned by the PAGEMAP_SCAN ioctl against /proc/pid/pagemap. This permits CRIU to more efficiently get at the info about guard regions. - "Fix parameter passed to page_mapcount_is_type()" from Gavin Shan implements that fix. No runtime effect is expected because validate_page_before_insert() happens to fix up this error. - "kernel/events/uprobes: uprobe_write_opcode() rewrite" from David Hildenbrand basically brings uprobe text poking into the current decade. Remove a bunch of hand-rolled implementation in favor of using more current facilities. - "mm/ptdump: Drop assumption that pxd_val() is u64" from Anshuman Khandual provides enhancements and generalizations to the pte dumping code. This might be needed when 128-bit Page Table Descriptors are enabled for ARM. - "Always call constructor for kernel page tables" from Kevin Brodsky ensures that the ctor/dtor is always called for kernel pgtables, as it already is for user pgtables. This permits the addition of more functionality such as "insert hooks to protect page tables". This change does result in various architectures performing unnecesary work, but this is fixed up where it is anticipated to occur. - "Rust support for mm_struct, vm_area_struct, and mmap" from Alice Ryhl adds plumbing to permit Rust access to core MM structures. - "fix incorrectly disallowed anonymous VMA merges" from Lorenzo Stoakes takes advantage of some VMA merging opportunities which we've been missing for 15 years. - "mm/madvise: batch tlb flushes for MADV_DONTNEED and MADV_FREE" from SeongJae Park optimizes process_madvise()'s TLB flushing. Instead of flushing each address range in the provided iovec, we batch the flushing across all the iovec entries. The syscall's cost was approximately halved with a microbenchmark which was designed to load this particular operation. - "Track node vacancy to reduce worst case allocation counts" from Sidhartha Kumar makes the maple tree smarter about its node preallocation. stress-ng mmap performance increased by single-digit percentages and the amount of unnecessarily preallocated memory was dramaticelly reduced. - "mm/gup: Minor fix, cleanup and improvements" from Baoquan He removes a few unnecessary things which Baoquan noted when reading the code. - ""Enhance sysfs handling for memory hotplug in weighted interleave" from Rakie Kim "enhances the weighted interleave policy in the memory management subsystem by improving sysfs handling, fixing memory leaks, and introducing dynamic sysfs updates for memory hotplug support". Fixes things on error paths which we are unlikely to hit. - "mm/damon: auto-tune DAMOS for NUMA setups including tiered memory" from SeongJae Park introduces new DAMOS quota goal metrics which eliminate the manual tuning which is required when utilizing DAMON for memory tiering. - "mm/vmalloc.c: code cleanup and improvements" from Baoquan He provides cleanups and small efficiency improvements which Baoquan found via code inspection. - "vmscan: enforce mems_effective during demotion" from Gregory Price changes reclaim to respect cpuset.mems_effective during demotion when possible. because presently, reclaim explicitly ignores cpuset.mems_effective when demoting, which may cause the cpuset settings to violated. This is useful for isolating workloads on a multi-tenant system from certain classes of memory more consistently. - "Clean up split_huge_pmd_locked() and remove unnecessary folio pointers" from Gavin Guo provides minor cleanups and efficiency gains in in the huge page splitting and migrating code. - "Use kmem_cache for memcg alloc" from Huan Yang creates a slab cache for `struct mem_cgroup', yielding improved memory utilization. - "add max arg to swappiness in memory.reclaim and lru_gen" from Zhongkun He adds a new "max" argument to the "swappiness=" argument for memory.reclaim MGLRU's lru_gen. This directs proactive reclaim to reclaim from only anon folios rather than file-backed folios. - "kexec: introduce Kexec HandOver (KHO)" from Mike Rapoport is the first step on the path to permitting the kernel to maintain existing VMs while replacing the host kernel via file-based kexec. At this time only memblock's reserve_mem is preserved. - "mm: Introduce for_each_valid_pfn()" from David Woodhouse provides and uses a smarter way of looping over a pfn range. By skipping ranges of invalid pfns. - "sched/numa: Skip VMA scanning on memory pinned to one NUMA node via cpuset.mems" from Libo Chen removes a lot of pointless VMA scanning when a task is pinned a single NUMA mode. Dramatic performance benefits were seen in some real world cases. - "JFS: Implement migrate_folio for jfs_metapage_aops" from Shivank Garg addresses a warning which occurs during memory compaction when using JFS. - "move all VMA allocation, freeing and duplication logic to mm" from Lorenzo Stoakes moves some VMA code from kernel/fork.c into the more appropriate mm/vma.c. - "mm, swap: clean up swap cache mapping helper" from Kairui Song provides code consolidation and cleanups related to the folio_index() function. - "mm/gup: Cleanup memfd_pin_folios()" from Vishal Moola does that. - "memcg: Fix test_memcg_min/low test failures" from Waiman Long addresses some bogus failures which are being reported by the test_memcontrol selftest. - "eliminate mmap() retry merge, add .mmap_prepare hook" from Lorenzo Stoakes commences the deprecation of file_operations.mmap() in favor of the new file_operations.mmap_prepare(). The latter is more restrictive and prevents drivers from messing with things in ways which, amongst other problems, may defeat VMA merging. - "memcg: decouple memcg and objcg stocks"" from Shakeel Butt decouples the per-cpu memcg charge cache from the objcg's one. This is a step along the way to making memcg and objcg charging NMI-safe, which is a BPF requirement. - "mm/damon: minor fixups and improvements for code, tests, and documents" from SeongJae Park is yet another batch of miscellaneous DAMON changes. Fix and improve minor problems in code, tests and documents. - "memcg: make memcg stats irq safe" from Shakeel Butt converts memcg stats to be irq safe. Another step along the way to making memcg charging and stats updates NMI-safe, a BPF requirement. - "Let unmap_hugepage_range() and several related functions take folio instead of page" from Fan Ni provides folio conversions in the hugetlb code. * tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (285 commits) mm: pcp: increase pcp->free_count threshold to trigger free_high mm/hugetlb: convert use of struct page to folio in __unmap_hugepage_range() mm/hugetlb: refactor __unmap_hugepage_range() to take folio instead of page mm/hugetlb: refactor unmap_hugepage_range() to take folio instead of page mm/hugetlb: pass folio instead of page to unmap_ref_private() memcg: objcg stock trylock without irq disabling memcg: no stock lock for cpu hot-unplug memcg: make __mod_memcg_lruvec_state re-entrant safe against irqs memcg: make count_memcg_events re-entrant safe against irqs memcg: make mod_memcg_state re-entrant safe against irqs memcg: move preempt disable to callers of memcg_rstat_updated memcg: memcg_rstat_updated re-entrant safe against irqs mm: khugepaged: decouple SHMEM and file folios' collapse selftests/eventfd: correct test name and improve messages alloc_tag: check mem_profiling_support in alloc_tag_init Docs/damon: update titles and brief introductions to explain DAMOS selftests/damon/_damon_sysfs: read tried regions directories in order mm/damon/tests/core-kunit: add a test for damos_set_filters_default_reject() mm/damon/paddr: remove unused variable, folio_list, in damon_pa_stat() mm/damon/sysfs-schemes: fix wrong comment on damons_sysfs_quota_goal_metric_strs ... |
||
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Rafael J. Wysocki
|
25961ae6c8 |
Merge branch 'pm-cpufreq'
Merge Rust support for cpufreq and OPP, a new Rust-based cpufreq-dt driver, an SCMI cpufreq driver cleanup, and an ACPI cpufreq driver regression fix: - Add Rust abstractions for CPUFreq framework (Viresh Kumar). - Add Rust abstractions for OPP framework (Viresh Kumar). - Add basic Rust abstractions for Clk and Cpumask frameworks (Viresh Kumar). - Clean up the SCMI cpufreq driver somewhat (Mike Tipton). - Use KHz as the nominal_freq units in get_max_boost_ratio() in the ACPI cpufreq driver (iGautham Shenoy). * pm-cpufreq: acpi-cpufreq: Fix nominal_freq units to KHz in get_max_boost_ratio() rust: opp: Move `cfg(CONFIG_OF)` attribute to the top of doc test rust: opp: Make the doctest example depend on CONFIG_OF cpufreq: scmi: Skip SCMI devices that aren't used by the CPUs cpufreq: Add Rust-based cpufreq-dt driver rust: opp: Extend OPP abstractions with cpufreq support rust: cpufreq: Extend abstractions for driver registration rust: cpufreq: Extend abstractions for policy and driver ops rust: cpufreq: Add initial abstractions for cpufreq framework rust: opp: Add abstractions for the configuration options rust: opp: Add abstractions for the OPP table rust: opp: Add initial abstractions for OPP framework rust: cpu: Add from_cpu() rust: macros: enable use of hyphens in module names rust: clk: Add initial abstractions rust: clk: Add helpers for Rust code MAINTAINERS: Add entry for Rust cpumask API rust: cpumask: Add initial abstractions rust: cpumask: Add few more helpers |
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Pekka Ristola
|
946026ba42
|
rust: file: improve safety comments
Some of the safety comments in `LocalFile`'s methods incorrectly refer to the `File` type instead of `LocalFile`, so fix them to use the correct type. Also add missing Markdown code spans around lifetimes in the safety comments, i.e. change 'a to `'a`. Link: https://github.com/Rust-for-Linux/linux/issues/1165 Signed-off-by: Pekka Ristola <pekkarr@protonmail.com> Link: https://lore.kernel.org/20250527204636.12573-2-pekkarr@protonmail.com Reviewed-by: Benno Lossin <lossin@kernel.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Signed-off-by: Christian Brauner <brauner@kernel.org> |
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Pekka Ristola
|
15ecd83dc0
|
rust: file: mark LocalFile as repr(transparent)
Unsafe code in `LocalFile`'s methods assumes that the type has the same
layout as the inner `bindings::file`. This is not guaranteed by the default
struct representation in Rust, but requires specifying the `transparent`
representation.
The `File` struct (which also wraps `bindings::file`) is already marked as
`repr(transparent)`, so this change makes their layouts equivalent.
Fixes:
|
||
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Sylvan Smit
|
7a17bbc1d9 |
rust: list: Fix typo much in arc.rs
Correct the typo (s/much/must) in the ListArc documentation.
Reported-by: Miguel Ojeda <ojeda@kernel.org>
Closes: https://github.com/Rust-for-Linux/linux/issues/1166
Fixes:
|
||
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Tamir Duberstein
|
b20fbbc08a |
rust: check type of $ptr in container_of!
Add a compile-time check that `*$ptr` is of the type of `$type->$($f)*`.
Rename those placeholders for clarity.
Given the incorrect usage:
> diff --git a/rust/kernel/rbtree.rs b/rust/kernel/rbtree.rs
> index 8d978c896747..6a7089149878 100644
> --- a/rust/kernel/rbtree.rs
> +++ b/rust/kernel/rbtree.rs
> @@ -329,7 +329,7 @@ fn raw_entry(&mut self, key: &K) -> RawEntry<'_, K, V> {
> while !(*child_field_of_parent).is_null() {
> let curr = *child_field_of_parent;
> // SAFETY: All links fields we create are in a `Node<K, V>`.
> - let node = unsafe { container_of!(curr, Node<K, V>, links) };
> + let node = unsafe { container_of!(curr, Node<K, V>, key) };
>
> // SAFETY: `node` is a non-null node so it is valid by the type invariants.
> match key.cmp(unsafe { &(*node).key }) {
this patch produces the compilation error:
> error[E0308]: mismatched types
> --> rust/kernel/lib.rs:220:45
> |
> 220 | $crate::assert_same_type(field_ptr, (&raw const (*container_ptr).$($fields)*).cast_mut());
> | ------------------------ --------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `*mut rb_node`, found `*mut K`
> | | |
> | | expected all arguments to be this `*mut bindings::rb_node` type because they need to match the type of this parameter
> | arguments to this function are incorrect
> |
> ::: rust/kernel/rbtree.rs:270:6
> |
> 270 | impl<K, V> RBTree<K, V>
> | - found this type parameter
> ...
> 332 | let node = unsafe { container_of!(curr, Node<K, V>, key) };
> | ------------------------------------ in this macro invocation
> |
> = note: expected raw pointer `*mut bindings::rb_node`
> found raw pointer `*mut K`
> note: function defined here
> --> rust/kernel/lib.rs:227:8
> |
> 227 | pub fn assert_same_type<T>(_: T, _: T) {}
> | ^^^^^^^^^^^^^^^^ - ---- ---- this parameter needs to match the `*mut bindings::rb_node` type of parameter #1
> | | |
> | | parameter #2 needs to match the `*mut bindings::rb_node` type of this parameter
> | parameter #1 and parameter #2 both reference this parameter `T`
> = note: this error originates in the macro `container_of` (in Nightly builds, run with -Z macro-backtrace for more info)
[ We decided to go with a variation of v1 [1] that became v4, since it
seems like the obvious approach, the error messages seem good enough
and the debug performance should be fine, given the kernel is always
built with -O2.
In the future, we may want to make the helper non-hidden, with
proper documentation, for others to use.
[1] https://lore.kernel.org/rust-for-linux/CANiq72kQWNfSV0KK6qs6oJt+aGdgY=hXg=wJcmK3zYcokY1LNw@mail.gmail.com/
- Miguel ]
Suggested-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/all/CAH5fLgh6gmqGBhPMi2SKn7mCmMWfOSiS0WP5wBuGPYh9ZTAiww@mail.gmail.com/
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Link: https://lore.kernel.org/r/20250529-b4-container-of-type-check-v4-1-bf3a7ad73cec@gmail.com
[ Added intra-doc link. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
|
||
|
Tamir Duberstein
|
1ce98bb2bb |
rust: workqueue: remove HasWork::OFFSET
Implement `HasWork::work_container_of` in `impl_has_work!`, narrowing the interface of `HasWork` and replacing pointer arithmetic with `container_of!`. Remove the provided implementation of `HasWork::get_work_offset` without replacement; an implementation is already generated in `impl_has_work!`. Remove the `Self: Sized` bound on `HasWork::work_container_of` which was apparently necessary to access `OFFSET` as `OFFSET` no longer exists. A similar API change was discussed on the hrtimer series[1]. Link: https://lore.kernel.org/all/20250224-hrtimer-v3-v6-12-rc2-v9-1-5bd3bf0ce6cc@kernel.org/ [1] Reviewed-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Tested-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Acked-by: Tejun Heo <tj@kernel.org> Link: https://lore.kernel.org/r/20250411-no-offset-v3-1-c0b174640ec3@gmail.com Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
||
|
Linus Torvalds
|
1b98f357da |
Networking changes for 6.16.
Core
----
- Implement the Device Memory TCP transmit path, allowing zero-copy
data transmission on top of TCP from e.g. GPU memory to the wire.
- Move all the IPv6 routing tables management outside the RTNL scope,
under its own lock and RCU. The route control path is now 3x times
faster.
- Convert queue related netlink ops to instance lock, reducing
again the scope of the RTNL lock. This improves the control plane
scalability.
- Refactor the software crc32c implementation, removing unneeded
abstraction layers and improving significantly the related
micro-benchmarks.
- Optimize the GRO engine for UDP-tunneled traffic, for a 10%
performance improvement in related stream tests.
- Cover more per-CPU storage with local nested BH locking; this is a
prep work to remove the current per-CPU lock in local_bh_disable()
on PREMPT_RT.
- Introduce and use nlmsg_payload helper, combining buffer bounds
verification with accessing payload carried by netlink messages.
Netfilter
---------
- Rewrite the procfs conntrack table implementation, improving
considerably the dump performance. A lot of user-space tools
still use this interface.
- Implement support for wildcard netdevice in netdev basechain
and flowtables.
- Integrate conntrack information into nft trace infrastructure.
- Export set count and backend name to userspace, for better
introspection.
BPF
---
- BPF qdisc support: BPF-qdisc can be implemented with BPF struct_ops
programs and can be controlled in similar way to traditional qdiscs
using the "tc qdisc" command.
- Refactor the UDP socket iterator, addressing long standing issues
WRT duplicate hits or missed sockets.
Protocols
---------
- Improve TCP receive buffer auto-tuning and increase the default
upper bound for the receive buffer; overall this improves the single
flow maximum thoughput on 200Gbs link by over 60%.
- Add AFS GSSAPI security class to AF_RXRPC; it provides transport
security for connections to the AFS fileserver and VL server.
- Improve TCP multipath routing, so that the sources address always
matches the nexthop device.
- Introduce SO_PASSRIGHTS for AF_UNIX, to allow disabling SCM_RIGHTS,
and thus preventing DoS caused by passing around problematic FDs.
- Retire DCCP socket. DCCP only receives updates for bugs, and major
distros disable it by default. Its removal allows for better
organisation of TCP fields to reduce the number of cache lines hit
in the fast path.
- Extend TCP drop-reason support to cover PAWS checks.
Driver API
----------
- Reorganize PTP ioctl flag support to require an explicit opt-in for
the drivers, avoiding the problem of drivers not rejecting new
unsupported flags.
- Converted several device drivers to timestamping APIs.
- Introduce per-PHY ethtool dump helpers, improving the support for
dump operations targeting PHYs.
Tests and tooling
-----------------
- Add support for classic netlink in user space C codegen, so that
ynl-c can now read, create and modify links, routes addresses and
qdisc layer configuration.
- Add ynl sub-types for binary attributes, allowing ynl-c to output
known struct instead of raw binary data, clarifying the classic
netlink output.
- Extend MPTCP selftests to improve the code-coverage.
- Add tests for XDP tail adjustment in AF_XDP.
New hardware / drivers
----------------------
- OpenVPN virtual driver: offload OpenVPN data channels processing
to the kernel-space, increasing the data transfer throughput WRT
the user-space implementation.
- Renesas glue driver for the gigabit ethernet RZ/V2H(P) SoC.
- Broadcom asp-v3.0 ethernet driver.
- AMD Renoir ethernet device.
- ReakTek MT9888 2.5G ethernet PHY driver.
- Aeonsemi 10G C45 PHYs driver.
Drivers
-------
- Ethernet high-speed NICs:
- nVidia/Mellanox (mlx5):
- refactor the stearing table handling to reduce significantly
the amount of memory used
- add support for complex matches in H/W flow steering
- improve flow streeing error handling
- convert to netdev instance locking
- Intel (100G, ice, igb, ixgbe, idpf):
- ice: add switchdev support for LLDP traffic over VF
- ixgbe: add firmware manipulation and regions devlink support
- igb: introduce support for frame transmission premption
- igb: adds persistent NAPI configuration
- idpf: introduce RDMA support
- idpf: add initial PTP support
- Meta (fbnic):
- extend hardware stats coverage
- add devlink dev flash support
- Broadcom (bnxt):
- add support for RX-side device memory TCP
- Wangxun (txgbe):
- implement support for udp tunnel offload
- complete PTP and SRIOV support for AML 25G/10G devices
- Ethernet NICs embedded and virtual:
- Google (gve):
- add device memory TCP TX support
- Amazon (ena):
- support persistent per-NAPI config
- Airoha:
- add H/W support for L2 traffic offload
- add per flow stats for flow offloading
- RealTek (rtl8211): add support for WoL magic packet
- Synopsys (stmmac):
- dwmac-socfpga 1000BaseX support
- add Loongson-2K3000 support
- introduce support for hardware-accelerated VLAN stripping
- Broadcom (bcmgenet):
- expose more H/W stats
- Freescale (enetc, dpaa2-eth):
- enetc: add MAC filter, VLAN filter RSS and loopback support
- dpaa2-eth: convert to H/W timestamping APIs
- vxlan: convert FDB table to rhashtable, for better scalabilty
- veth: apply qdisc backpressure on full ring to reduce TX drops
- Ethernet switches:
- Microchip (kzZ88x3): add ETS scheduler support
- Ethernet PHYs:
- RealTek (rtl8211):
- add support for WoL magic packet
- add support for PHY LEDs
- CAN:
- Adds RZ/G3E CANFD support to the rcar_canfd driver.
- Preparatory work for CAN-XL support.
- Add self-tests framework with support for CAN physical interfaces.
- WiFi:
- mac80211:
- scan improvements with multi-link operation (MLO)
- Qualcomm (ath12k):
- enable AHB support for IPQ5332
- add monitor interface support to QCN9274
- add multi-link operation support to WCN7850
- add 802.11d scan offload support to WCN7850
- monitor mode for WCN7850, better 6 GHz regulatory
- Qualcomm (ath11k):
- restore hibernation support
- MediaTek (mt76):
- WiFi-7 improvements
- implement support for mt7990
- Intel (iwlwifi):
- enhanced multi-link single-radio (EMLSR) support on 5 GHz links
- rework device configuration
- RealTek (rtw88):
- improve throughput for RTL8814AU
- RealTek (rtw89):
- add multi-link operation support
- STA/P2P concurrency improvements
- support different SAR configs by antenna
- Bluetooth:
- introduce HCI Driver protocol
- btintel_pcie: do not generate coredump for diagnostic events
- btusb: add HCI Drv commands for configuring altsetting
- btusb: add RTL8851BE device 0x0bda:0xb850
- btusb: add new VID/PID 13d3/3584 for MT7922
- btusb: add new VID/PID 13d3/3630 and 13d3/3613 for MT7925
- btnxpuart: implement host-wakeup feature
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"Core:
- Implement the Device Memory TCP transmit path, allowing zero-copy
data transmission on top of TCP from e.g. GPU memory to the wire.
- Move all the IPv6 routing tables management outside the RTNL scope,
under its own lock and RCU. The route control path is now 3x times
faster.
- Convert queue related netlink ops to instance lock, reducing again
the scope of the RTNL lock. This improves the control plane
scalability.
- Refactor the software crc32c implementation, removing unneeded
abstraction layers and improving significantly the related
micro-benchmarks.
- Optimize the GRO engine for UDP-tunneled traffic, for a 10%
performance improvement in related stream tests.
- Cover more per-CPU storage with local nested BH locking; this is a
prep work to remove the current per-CPU lock in local_bh_disable()
on PREMPT_RT.
- Introduce and use nlmsg_payload helper, combining buffer bounds
verification with accessing payload carried by netlink messages.
Netfilter:
- Rewrite the procfs conntrack table implementation, improving
considerably the dump performance. A lot of user-space tools still
use this interface.
- Implement support for wildcard netdevice in netdev basechain and
flowtables.
- Integrate conntrack information into nft trace infrastructure.
- Export set count and backend name to userspace, for better
introspection.
BPF:
- BPF qdisc support: BPF-qdisc can be implemented with BPF struct_ops
programs and can be controlled in similar way to traditional qdiscs
using the "tc qdisc" command.
- Refactor the UDP socket iterator, addressing long standing issues
WRT duplicate hits or missed sockets.
Protocols:
- Improve TCP receive buffer auto-tuning and increase the default
upper bound for the receive buffer; overall this improves the
single flow maximum thoughput on 200Gbs link by over 60%.
- Add AFS GSSAPI security class to AF_RXRPC; it provides transport
security for connections to the AFS fileserver and VL server.
- Improve TCP multipath routing, so that the sources address always
matches the nexthop device.
- Introduce SO_PASSRIGHTS for AF_UNIX, to allow disabling SCM_RIGHTS,
and thus preventing DoS caused by passing around problematic FDs.
- Retire DCCP socket. DCCP only receives updates for bugs, and major
distros disable it by default. Its removal allows for better
organisation of TCP fields to reduce the number of cache lines hit
in the fast path.
- Extend TCP drop-reason support to cover PAWS checks.
Driver API:
- Reorganize PTP ioctl flag support to require an explicit opt-in for
the drivers, avoiding the problem of drivers not rejecting new
unsupported flags.
- Converted several device drivers to timestamping APIs.
- Introduce per-PHY ethtool dump helpers, improving the support for
dump operations targeting PHYs.
Tests and tooling:
- Add support for classic netlink in user space C codegen, so that
ynl-c can now read, create and modify links, routes addresses and
qdisc layer configuration.
- Add ynl sub-types for binary attributes, allowing ynl-c to output
known struct instead of raw binary data, clarifying the classic
netlink output.
- Extend MPTCP selftests to improve the code-coverage.
- Add tests for XDP tail adjustment in AF_XDP.
New hardware / drivers:
- OpenVPN virtual driver: offload OpenVPN data channels processing to
the kernel-space, increasing the data transfer throughput WRT the
user-space implementation.
- Renesas glue driver for the gigabit ethernet RZ/V2H(P) SoC.
- Broadcom asp-v3.0 ethernet driver.
- AMD Renoir ethernet device.
- ReakTek MT9888 2.5G ethernet PHY driver.
- Aeonsemi 10G C45 PHYs driver.
Drivers:
- Ethernet high-speed NICs:
- nVidia/Mellanox (mlx5):
- refactor the steering table handling to significantly
reduce the amount of memory used
- add support for complex matches in H/W flow steering
- improve flow streeing error handling
- convert to netdev instance locking
- Intel (100G, ice, igb, ixgbe, idpf):
- ice: add switchdev support for LLDP traffic over VF
- ixgbe: add firmware manipulation and regions devlink support
- igb: introduce support for frame transmission premption
- igb: adds persistent NAPI configuration
- idpf: introduce RDMA support
- idpf: add initial PTP support
- Meta (fbnic):
- extend hardware stats coverage
- add devlink dev flash support
- Broadcom (bnxt):
- add support for RX-side device memory TCP
- Wangxun (txgbe):
- implement support for udp tunnel offload
- complete PTP and SRIOV support for AML 25G/10G devices
- Ethernet NICs embedded and virtual:
- Google (gve):
- add device memory TCP TX support
- Amazon (ena):
- support persistent per-NAPI config
- Airoha:
- add H/W support for L2 traffic offload
- add per flow stats for flow offloading
- RealTek (rtl8211): add support for WoL magic packet
- Synopsys (stmmac):
- dwmac-socfpga 1000BaseX support
- add Loongson-2K3000 support
- introduce support for hardware-accelerated VLAN stripping
- Broadcom (bcmgenet):
- expose more H/W stats
- Freescale (enetc, dpaa2-eth):
- enetc: add MAC filter, VLAN filter RSS and loopback support
- dpaa2-eth: convert to H/W timestamping APIs
- vxlan: convert FDB table to rhashtable, for better scalabilty
- veth: apply qdisc backpressure on full ring to reduce TX drops
- Ethernet switches:
- Microchip (kzZ88x3): add ETS scheduler support
- Ethernet PHYs:
- RealTek (rtl8211):
- add support for WoL magic packet
- add support for PHY LEDs
- CAN:
- Adds RZ/G3E CANFD support to the rcar_canfd driver.
- Preparatory work for CAN-XL support.
- Add self-tests framework with support for CAN physical interfaces.
- WiFi:
- mac80211:
- scan improvements with multi-link operation (MLO)
- Qualcomm (ath12k):
- enable AHB support for IPQ5332
- add monitor interface support to QCN9274
- add multi-link operation support to WCN7850
- add 802.11d scan offload support to WCN7850
- monitor mode for WCN7850, better 6 GHz regulatory
- Qualcomm (ath11k):
- restore hibernation support
- MediaTek (mt76):
- WiFi-7 improvements
- implement support for mt7990
- Intel (iwlwifi):
- enhanced multi-link single-radio (EMLSR) support on 5 GHz links
- rework device configuration
- RealTek (rtw88):
- improve throughput for RTL8814AU
- RealTek (rtw89):
- add multi-link operation support
- STA/P2P concurrency improvements
- support different SAR configs by antenna
- Bluetooth:
- introduce HCI Driver protocol
- btintel_pcie: do not generate coredump for diagnostic events
- btusb: add HCI Drv commands for configuring altsetting
- btusb: add RTL8851BE device 0x0bda:0xb850
- btusb: add new VID/PID 13d3/3584 for MT7922
- btusb: add new VID/PID 13d3/3630 and 13d3/3613 for MT7925
- btnxpuart: implement host-wakeup feature"
* tag 'net-next-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1611 commits)
selftests/bpf: Fix bpf selftest build warning
selftests: netfilter: Fix skip of wildcard interface test
net: phy: mscc: Stop clearing the the UDPv4 checksum for L2 frames
net: openvswitch: Fix the dead loop of MPLS parse
calipso: Don't call calipso functions for AF_INET sk.
selftests/tc-testing: Add a test for HFSC eltree double add with reentrant enqueue behaviour on netem
net_sched: hfsc: Address reentrant enqueue adding class to eltree twice
octeontx2-pf: QOS: Refactor TC_HTB_LEAF_DEL_LAST callback
octeontx2-pf: QOS: Perform cache sync on send queue teardown
net: mana: Add support for Multi Vports on Bare metal
net: devmem: ncdevmem: remove unused variable
net: devmem: ksft: upgrade rx test to send 1K data
net: devmem: ksft: add 5 tuple FS support
net: devmem: ksft: add exit_wait to make rx test pass
net: devmem: ksft: add ipv4 support
net: devmem: preserve sockc_err
page_pool: fix ugly page_pool formatting
net: devmem: move list_add to net_devmem_bind_dmabuf.
selftests: netfilter: nft_queue.sh: include file transfer duration in log message
net: phy: mscc: Fix memory leak when using one step timestamping
...
|
||
|
Tamir Duberstein
|
74d6a606c2 |
rust: retain pointer mut-ness in container_of!
Avoid casting the input pointer to `*const _`, allowing the output pointer to be `*mut` if the input is `*mut`. This allows a number of `*const` to `*mut` conversions to be removed at the cost of slightly worse ergonomics when the macro is used with a reference rather than a pointer; the only example of this was in the macro's own doctest. Reviewed-by: Benno Lossin <benno.lossin@proton.me> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Signed-off-by: Tamir Duberstein <tamird@gmail.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250409-container-of-mutness-v1-1-64f472b94534@gmail.com Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
||
|
Linus Torvalds
|
b08494a8f7 |
drm for 6.16-rc1
new drivers: - bring in the asahi uapi header standalone - nova-drm: stub driver rust dependencies (for nova-core): - auxiliary - bus abstractions - driver registration - sample driver - devres changes from driver-core - revocable changes core: - add Apple fourcc modifiers - add virtio capset definitions - extend EXPORT_SYNC_FILE for timeline syncobjs - convert to devm_platform_ioremap_resource - refactor shmem helper page pinning - DP powerup/down link helpers - remove disgusting turds - extended %p4cc in vsprintf.c to support fourcc prints - change vsprintf %p4cn to %p4chR, remove %p4cn - Add drm_file_err function - IN_FORMATS_ASYNC property - move sitronix from tiny to their own subdir rust: - add drm core infrastructure rust abstractions (device/driver, ioctl, file, gem) dma-buf: - adjust sg handling to not cache map on attach - allow setting dma-device for import - Add a helper to sort and deduplicate dma_fence arrays docs: - updated drm scheduler docs - fbdev todo update - fb rendering - actual brightness ttm: - fix delayed destroy resv object bridge: - add kunit tests - convert tc358775 to atomic - convert drivers to devm_drm_bridge_alloc - convert rk3066_hdmi to bridge driver scheduler: - add kunit tests panel: - refcount panels to improve lifetime handling - Powertip PH128800T004-ZZA01 - NLT NL13676BC25-03F, Tianma TM070JDHG34-00 - Himax HX8279/HX8279-D DDIC - Visionox G2647FB105 - Sitronix ST7571 - ZOTAC rotation quirk vkms: - allow attaching more displays i915: - xe3lpd display updates - vrr refactor - intel_display struct conversions - xe2hpd memory type identification - add link rate/count to i915_display_info - cleanup VGA plane handling - refactor HDCP GSC - fix SLPC wait boosting reference counting - add 20ms delay to engine reset - fix fence release on early probe errors xe: - SRIOV updates - BMG PCI ID update - support separate firmware for each GT - SVM fix, prelim SVM multi-device work - export fan speed - temp disable d3cold on BMG - backup VRAM in PM notifier instead of suspend/freeze - update xe_ttm_access_memory to use GPU for non-visible access - fix guc_info debugfs for VFs - use copy_from_user instead of __copy_from_user - append PCIe gen5 limitations to xe_firmware document amdgpu: - DSC cleanup - DC Scaling updates - Fused I2C-over-AUX updates - DMUB updates - Use drm_file_err in amdgpu - Enforce isolation updates - Use new dma_fence helpers - USERQ fixes - Documentation updates - SR-IOV updates - RAS updates - PSP 12 cleanups - GC 9.5 updates - SMU 13.x updates - VCN / JPEG SR-IOV updates amdkfd: - Update error messages for SDMA - Userptr updates - XNACK fixes radeon: - CIK doorbell cleanup nouveau: - add support for NVIDIA r570 GSP firmware - enable Hopper/Blackwell support nova-core: - fix task list - register definition infrastructure - move firmware into own rust module - register auxiliary device for nova-drm nova-drm: - initial driver skeleton msm: - GPU: - ACD (adaptive clock distribution) for X1-85 - drop fictional address_space_size - improve GMU HFI response time out robustness - fix crash when throttling during boot - DPU: - use single CTL path for flushing on DPU 5.x+ - improve SSPP allocation code for better sharing - Enabled SmartDMA on SM8150, SC8180X, SC8280XP, SM8550 - Added SAR2130P support - Disabled DSC support on MSM8937, MSM8917, MSM8953, SDM660 - DP: - switch to new audio helpers - better LTTPR handling - DSI: - Added support for SA8775P - Added SAR2130P support - HDMI: - Switched to use new helpers for ACR data - Fixed old standing issue of HPD not working in some cases amdxdna: - add dma-buf support - allow empty command submits renesas: - add dma-buf support - add zpos, alpha, blend support panthor: - fail properly for NO_MMAP bos - add SET_LABEL ioctl - debugfs BO dumping support imagination: - update DT bindings - support TI AM68 GPU hibmc: - improve interrupt handling and HPD support virtio: - add panic handler support rockchip: - add RK3588 support - add DP AUX bus panel support ivpu: - add heartbeat based hangcheck mediatek: - prepares support for MT8195/99 HDMIv2/DDCv2 anx7625: - improve HPD tegra: - speed up firmware loading -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmg2aVAACgkQDHTzWXnE hr6DjhAApr2fZjugU3EmpsARdcIWgEd+X65R97ef7RlUGqBKm2joSwZGOhH0oBsG 9WyO92Qzu6XMe8OibKqY4D2hir9UPz5v+uEWe3q9CzZGbNyAwyVRjVkaKpnI9upv 1dmHFI7HgPu6qbz6RfPIfgALBLXvVXMaQ4+ZgN/cLtZFa+OLAV5ByqWsRPPXZFb0 F/pQGQ4ursglfA+LH3SVPfnTN53lu93IlM5/Os9OQQGj+44w94zQ6DCm7CY1AugH n+RM/0Yv7WaoF1ByeOtq4FcrmLRrd+ozsvITbRZqhOx7zS/mhP8LRzAwgKWOYzSh puKunyQiSdHR7FSqSi8uyY3YumcLWNa/17LMKoTf+KqweJbKGE7RVBuFBn6WUdPb AYHZrSB4USAeyahdrrsU+q7ltu5urs5ckpbXsRurMiaUz/BLim1PIm3N5FDLPY7B PD1n1FcMUv3CmJT5Y+aNIQgmf1/dETESRTSAgSoOo3gNp6jdRCYqSuWIBsppibWT 26+tyz0/FGhE50QviHzg0Sv+jd/g93fN6snNlV8wNFMviq3bC69Toa+y3qJ5e7UC /42R7nCWdkCZJfr6E67rOaahe9TDV/LXLqPErwptOkdK8sMchaIgF+deybgTtTi/ zGRBfjLvb5ocYBmPbeGX4mtXNRpyZ3o9I0QUyGUO4zMwFXmFwn0= =jpVr -----END PGP SIGNATURE----- Merge tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel Pull drm updates from Dave Airlie: "As part of building up nova-core/nova-drm pieces we've brought in some rust abstractions through this tree, aux bus being the main one, with devres changes also in the driver-core tree. Along with the drm core abstractions and enough nova-core/nova-drm to use them. This is still all stub work under construction, to build the nova driver upstream. The other big NVIDIA related one is nouveau adds support for Hopper/Blackwell GPUs, this required a new GSP firmware update to 570.144, and a bunch of rework in order to support multiple fw interfaces. There is also the introduction of an asahi uapi header file as a precursor to getting the real driver in later, but to unblock userspace mesa packages while the driver is trapped behind rust enablement. Otherwise it's the usual mixture of stuff all over, amdgpu, i915/xe, and msm being the main ones, and some changes to vsprintf. new drivers: - bring in the asahi uapi header standalone - nova-drm: stub driver rust dependencies (for nova-core): - auxiliary - bus abstractions - driver registration - sample driver - devres changes from driver-core - revocable changes core: - add Apple fourcc modifiers - add virtio capset definitions - extend EXPORT_SYNC_FILE for timeline syncobjs - convert to devm_platform_ioremap_resource - refactor shmem helper page pinning - DP powerup/down link helpers - extended %p4cc in vsprintf.c to support fourcc prints - change vsprintf %p4cn to %p4chR, remove %p4cn - Add drm_file_err function - IN_FORMATS_ASYNC property - move sitronix from tiny to their own subdir rust: - add drm core infrastructure rust abstractions (device/driver, ioctl, file, gem) dma-buf: - adjust sg handling to not cache map on attach - allow setting dma-device for import - Add a helper to sort and deduplicate dma_fence arrays docs: - updated drm scheduler docs - fbdev todo update - fb rendering - actual brightness ttm: - fix delayed destroy resv object bridge: - add kunit tests - convert tc358775 to atomic - convert drivers to devm_drm_bridge_alloc - convert rk3066_hdmi to bridge driver scheduler: - add kunit tests panel: - refcount panels to improve lifetime handling - Powertip PH128800T004-ZZA01 - NLT NL13676BC25-03F, Tianma TM070JDHG34-00 - Himax HX8279/HX8279-D DDIC - Visionox G2647FB105 - Sitronix ST7571 - ZOTAC rotation quirk vkms: - allow attaching more displays i915: - xe3lpd display updates - vrr refactor - intel_display struct conversions - xe2hpd memory type identification - add link rate/count to i915_display_info - cleanup VGA plane handling - refactor HDCP GSC - fix SLPC wait boosting reference counting - add 20ms delay to engine reset - fix fence release on early probe errors xe: - SRIOV updates - BMG PCI ID update - support separate firmware for each GT - SVM fix, prelim SVM multi-device work - export fan speed - temp disable d3cold on BMG - backup VRAM in PM notifier instead of suspend/freeze - update xe_ttm_access_memory to use GPU for non-visible access - fix guc_info debugfs for VFs - use copy_from_user instead of __copy_from_user - append PCIe gen5 limitations to xe_firmware document amdgpu: - DSC cleanup - DC Scaling updates - Fused I2C-over-AUX updates - DMUB updates - Use drm_file_err in amdgpu - Enforce isolation updates - Use new dma_fence helpers - USERQ fixes - Documentation updates - SR-IOV updates - RAS updates - PSP 12 cleanups - GC 9.5 updates - SMU 13.x updates - VCN / JPEG SR-IOV updates amdkfd: - Update error messages for SDMA - Userptr updates - XNACK fixes radeon: - CIK doorbell cleanup nouveau: - add support for NVIDIA r570 GSP firmware - enable Hopper/Blackwell support nova-core: - fix task list - register definition infrastructure - move firmware into own rust module - register auxiliary device for nova-drm nova-drm: - initial driver skeleton msm: - GPU: - ACD (adaptive clock distribution) for X1-85 - drop fictional address_space_size - improve GMU HFI response time out robustness - fix crash when throttling during boot - DPU: - use single CTL path for flushing on DPU 5.x+ - improve SSPP allocation code for better sharing - Enabled SmartDMA on SM8150, SC8180X, SC8280XP, SM8550 - Added SAR2130P support - Disabled DSC support on MSM8937, MSM8917, MSM8953, SDM660 - DP: - switch to new audio helpers - better LTTPR handling - DSI: - Added support for SA8775P - Added SAR2130P support - HDMI: - Switched to use new helpers for ACR data - Fixed old standing issue of HPD not working in some cases amdxdna: - add dma-buf support - allow empty command submits renesas: - add dma-buf support - add zpos, alpha, blend support panthor: - fail properly for NO_MMAP bos - add SET_LABEL ioctl - debugfs BO dumping support imagination: - update DT bindings - support TI AM68 GPU hibmc: - improve interrupt handling and HPD support virtio: - add panic handler support rockchip: - add RK3588 support - add DP AUX bus panel support ivpu: - add heartbeat based hangcheck mediatek: - prepares support for MT8195/99 HDMIv2/DDCv2 anx7625: - improve HPD tegra: - speed up firmware loading * tag 'drm-next-2025-05-28' of https://gitlab.freedesktop.org/drm/kernel: (1627 commits) drm/nouveau/tegra: Fix error pointer vs NULL return in nvkm_device_tegra_resource_addr() drm/xe: Default auto_link_downgrade status to false drm/xe/guc: Make creation of SLPC debugfs files conditional drm/i915/display: Add check for alloc_ordered_workqueue() and alloc_workqueue() drm/i915/dp_mst: Work around Thunderbolt sink disconnect after SINK_COUNT_ESI read drm/i915/ptl: Use everywhere the correct DDI port clock select mask drm/nouveau/kms: add support for GB20x drm/dp: add option to disable zero sized address only transactions. drm/nouveau: add support for GB20x drm/nouveau/gsp: add hal for fifo.chan.doorbell_handle drm/nouveau: add support for GB10x drm/nouveau/gf100-: track chan progress with non-WFI semaphore release drm/nouveau/nv50-: separate CHANNEL_GPFIFO handling out from CHANNEL_DMA drm/nouveau: add helper functions for allocating pinned/cpu-mapped bos drm/nouveau: add support for GH100 drm/nouveau: improve handling of 64-bit BARs drm/nouveau/gv100-: switch to volta semaphore methods drm/nouveau/gsp: support deeper page tables in COPY_SERVER_RESERVED_PDES drm/nouveau/gsp: init client VMMs with NV0080_CTRL_DMA_SET_PAGE_DIRECTORY drm/nouveau/gsp: fetch level shift and PDE from BAR2 VMM ... |
||
|
Miguel Ojeda
|
2d6c87d0d6 |
rust: str: take advantage of the -> Result support in KUnit #[test]'s
Since now we have support for returning `-> Result`s, we can convert some of these tests to use the feature, and serve as a first user for it too. Thus convert them, which allows us to remove some `unwrap()`s. We keep the actual assertions we want to make as explicit ones with `assert*!`s. Reviewed-by: David Gow <davidgow@google.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250502215133.1923676-6-ojeda@kernel.org [ Split the `CString` simplification into a new commit. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
||
|
Miguel Ojeda
|
1486554392 |
rust: str: simplify KUnit tests format! macro
Simplify the `format!` macro used in the tests by using `CString::try_from_fmt` and directly `unwrap()`ing. This will allow us to change both `unwrap()`s here in order to showcase the `?` operator support now that the tests are KUnit ones. Reviewed-by: David Gow <davidgow@google.com> Acked-by: Danilo Krummrich <dakr@kernel.org> [ Split from the next commit as suggested by Tamir. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
||
|
Miguel Ojeda
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028df914e5 |
rust: str: convert rusttest tests into KUnit
In general, we should aim to test as much as possible within the actual kernel, and not in the build host. Thus convert these `rusttest` tests into KUnit tests. Reviewed-by: David Gow <davidgow@google.com> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250502215133.1923676-5-ojeda@kernel.org Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |