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2025-09-06Merge tag 'rust-fixes-6.17-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux Pull rust fixes from Miguel Ojeda: - Two changes to prepare for the future Rust 1.91.0 release (expected 2025-10-30, currently in nightly): a target specification format change and a renamed, soon-to-be-stabilized 'core' function. * tag 'rust-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: rust: support Rust >= 1.91.0 target spec rust: use the new name Location::file_as_c_str() in Rust >= 1.91.0
2025-09-05regulator: pf530x: NXP PF530x regulator driverMark Brown
Merge series from Woodrow Douglass <wdouglass@carnegierobotics.com>: I wrote this driver to read settings and state from the nxp pf530x regulator. Please consider it for inclusion, any criticism is welcome.
2025-09-04rust: scatterlist: Add abstraction for sg_tableDanilo Krummrich
Add a safe Rust abstraction for the kernel's scatter-gather list facilities (`struct scatterlist` and `struct sg_table`). This commit introduces `SGTable<T>`, a wrapper that uses a generic parameter to provide compile-time guarantees about ownership and lifetime. The abstraction provides two primary states: - `SGTable<Owned<P>>`: Represents a table whose resources are fully managed by Rust. It takes ownership of a page provider `P`, allocates the underlying `struct sg_table`, maps it for DMA, and handles all cleanup automatically upon drop. The DMA mapping's lifetime is tied to the associated device using `Devres`, ensuring it is correctly unmapped before the device is unbound. - `SGTable<Borrowed>` (or just `SGTable`): A zero-cost representation of an externally managed `struct sg_table`. It is created from a raw pointer using `SGTable::from_raw()` and provides a lifetime-bound reference (`&'a SGTable`) for operations like iteration. The API exposes a safe iterator that yields `&SGEntry` references, allowing drivers to easily access the DMA address and length of each segment in the list. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Co-developed-by: Abdiel Janulgue <abdiel.janulgue@gmail.com> Signed-off-by: Abdiel Janulgue <abdiel.janulgue@gmail.com> Link: https://lore.kernel.org/r/20250828133323.53311-4-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-04rust: dma: add type alias for bindings::dma_addr_tDanilo Krummrich
Add a type alias for bindings::dma_addr_t (DmaAddress), such that we do not have to access bindings directly. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Suggested-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20250828133323.53311-3-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-04rust: dma: implement DataDirectionDanilo Krummrich
Add the `DataDirection` struct, a newtype wrapper around the C `enum dma_data_direction`. This provides a type-safe Rust interface for specifying the direction of DMA transfers. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Lyude Paul <lyude@redhat.com> Link: https://lore.kernel.org/r/20250828133323.53311-2-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-04rust: alloc: kvec: implement AsPageIter for VVecDanilo Krummrich
Implement AsPageIter for VVec; this allows to iterate and borrow the backing pages of a VVec. This, for instance, is useful in combination with VVec backing a scatterlist. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250820145434.94745-8-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-04rust: alloc: layout: implement ArrayLayout::size()Danilo Krummrich
Provide a convenience method for ArrayLayout to calculate the size of the ArrayLayout in bytes. Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Abdiel Janulgue <abdiel.janulgue@gmail.com> Link: https://lore.kernel.org/r/20250820145434.94745-7-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-04rust: alloc: kbox: implement AsPageIter for VBoxDanilo Krummrich
Implement AsPageIter for VBox; this allows to iterate and borrow the backing pages of a VBox. This, for instance, is useful in combination with VBox backing a scatterlist. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Alexandre Courbot <acourbot@nvidia.com> Link: https://lore.kernel.org/r/20250820145434.94745-6-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-04rust: page: define trait AsPageIterDanilo Krummrich
The AsPageIter trait provides a common interface for types that provide a page iterator, such as VmallocPageIter. Subsequent patches will leverage this to let VBox and VVec provide a VmallocPageIter though this trait. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250820145434.94745-5-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-04rust: alloc: implement VmallocPageIterDanilo Krummrich
Introduce the VmallocPageIter type; an instance of VmallocPageIter may be exposed by owners of vmalloc allocations to provide borrowed access to its backing pages. For instance, this is useful to access and borrow the backing pages of allocation primitives, such as Box and Vec, backing a scatterlist. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Suggested-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20250820145434.94745-4-dakr@kernel.org [ Drop VmallocPageIter::base_address(), move to allocator/iter.rs and stub VmallocPageIter for allocator_test.rs. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.17-rc5). No conflicts. Adjacent changes: include/net/sock.h c51613fa276f ("net: add sk->sk_drop_counters") 5d6b58c932ec ("net: lockless sock_i_ino()") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-04Merge tag 'opp-updates-6.18' of ↵Rafael J. Wysocki
git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Merge OPP (operating performance points) updates for 6.18 from Viresh Kumar: "- Add support to find OPP for a set of keys (Krishna Chaitanya Chundru). - Minor optimization to OPP Rust implementation (Onur Özkan)." * tag 'opp-updates-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: OPP: Add support to find OPP for a set of keys rust: opp: use to_result for error handling
2025-09-04rust: alloc: vmalloc: implement Vmalloc::to_page()Danilo Krummrich
Implement an abstraction of vmalloc_to_page() for subsequent use in the AsPageIter implementation of VBox and VVec. Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250820145434.94745-3-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-04rust: page: implement BorrowedPageDanilo Krummrich
Currently, a Page always owns the underlying struct page. However, sometimes a struct page may be owned by some other entity, e.g. a vmalloc allocation. Hence, introduce BorrowedPage to support such cases, until the Ownable solution [1] lands. This is required by the scatterlist abstractions. Acked-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Tested-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/rust-for-linux/ZnCzLIly3DRK2eab@boqun-archlinux/ [1] Link: https://lore.kernel.org/r/20250820145434.94745-2-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-04rust: time: Implement basic arithmetic operations for DeltaLyude Paul
While rvkms is only going to be using a few of these, since Deltas are basically the same as i64 it's easy enough to just implement all of the basic arithmetic operations for Delta types. Keep in mind there's one quirk here - the kernel has no support for i64 % i64 on 32 bit platforms, the closest we have is i64 % i32 through div_s64_rem(). So, instead of implementing ops::Rem or ops::RemAssign we simply provide Delta::rem_nanos(). Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: FUJITA Tomonori <fujita.tomonori@gmail.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250820203704.731588-3-lyude@redhat.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
2025-09-04rust: time: Implement Add<Delta>/Sub<Delta> for InstantLyude Paul
In order to copy the behavior rust currently follows for basic arithmetic operations and panic if the result of an addition or subtraction results in a value that would violate the invariants of Instant, but only if the kernel has overflow checking for rust enabled. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: FUJITA Tomonori <fujita.tomonori@gmail.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250820203704.731588-2-lyude@redhat.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
2025-09-04rust: hrtimer: Add HrTimer::expires()Lyude Paul
Add a simple callback for retrieving the current expiry time for an HrTimer. In rvkms, we use the HrTimer expiry value in order to calculate the approximate vblank timestamp during each emulated vblank interrupt. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250821193259.964504-8-lyude@redhat.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
2025-09-04rust: time: Add Instant::from_ktime()Lyude Paul
For implementing Rust bindings which can return a point in time. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: FUJITA Tomonori <fujita.tomonori@gmail.com> Link: https://lore.kernel.org/r/20250821193259.964504-7-lyude@redhat.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
2025-09-04rust: hrtimer: Add forward_now() to HrTimer and HrTimerCallbackContextLyude Paul
Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250821193259.964504-6-lyude@redhat.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
2025-09-04rust: hrtimer: Add HrTimerCallbackContext and ::forward()Lyude Paul
With Linux's hrtimer API, there's a number of methods that can only be called in two situations: * When we have exclusive access to the hrtimer and it is not currently active * When we're within the context of an hrtimer callback context This commit handles the second situation and implements hrtimer_forward() support in the context of a timer callback. We do this by introducing a HrTimerCallbackContext type which is provided to users during the RawHrTimerCallback::run() callback, and then add a forward() function to the type. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250821193259.964504-5-lyude@redhat.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
2025-09-04rust: hrtimer: Add HrTimer::raw_forward() and forward()Lyude Paul
Within the hrtimer API there are quite a number of functions that can only be safely called from one of two contexts: * When we have exclusive access to the hrtimer and the timer is not active. * When we're within the hrtimer's callback context as it is being executed. This commit adds bindings for hrtimer_forward() for the first such context, along with HrTimer::raw_forward() for later use in implementing the hrtimer_forward() in the latter context. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250821193259.964504-4-lyude@redhat.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
2025-09-04rust: hrtimer: Add HrTimerInstantLyude Paul
Since we want to add HrTimer methods that can accept Instants, we will want to make sure that for each method we are using the correct Clocksource for the given HrTimer. This would get a bit overly-verbose, so add a simple HrTimerInstant type-alias to handle this for us. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250821193259.964504-3-lyude@redhat.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
2025-09-04rust: hrtimer: Document the return value for HrTimerHandle::cancel()Lyude Paul
Just a drive-by fix I noticed: we don't actually document what the return value from cancel() does, so do that. Signed-off-by: Lyude Paul <lyude@redhat.com> Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Link: https://lore.kernel.org/r/20250821193259.964504-2-lyude@redhat.com Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org>
2025-09-03rust: phy: use to_result for error handlingOnur Özkan
Simplifies error handling by replacing the manual check of the return value with the `to_result` helper. Signed-off-by: Onur Özkan <work@onurozkan.dev> Reviewed-by: Elle Rhumsaa <elle@weathered-steel.dev> Reviewed-by: Trevor Gross <tmgross@umich.edu> Link: https://patch.msgid.link/20250821091235.800-1-work@onurozkan.dev Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-02rust: block: add remote completion to `Request`Andreas Hindborg
Allow users of rust block device driver API to schedule completion of requests via `blk_mq_complete_request_remote`. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-16-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: block: mq: fix spelling in a safety commentAndreas Hindborg
Add code block quotes to a safety comment. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-15-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: block: add `GenDisk` private data supportAndreas Hindborg
Allow users of the rust block device driver API to install private data in the `GenDisk` structure. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-14-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rnull: enable configuration via `configfs`Andreas Hindborg
Allow rust null block devices to be configured and instantiated via `configfs`. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-13-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: block: add block related constantsAndreas Hindborg
Add a few block subsystem constants to the rust `kernel::block` name space. This makes it easier to access the constants from rust code. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-11-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: block: remove trait bound from `mq::Request` definitionAndreas Hindborg
Remove the trait bound `T:Operations` from `mq::Request`. The bound is not required, so remove it to reduce complexity. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-10-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: block: remove `RawWriter`Andreas Hindborg
`RawWriter` is now dead code, so remove it. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-9-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: block: use `NullTerminatedFormatter`Andreas Hindborg
Use the new `NullTerminatedFormatter` to write the name of a `GenDisk` to the name buffer. This new formatter automatically adds a trailing null marker after the written characters, so we don't need to append that at the call site any longer. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-8-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: block: normalize imports for `gen_disk.rs`Andreas Hindborg
Clean up the import statements in `gen_disk.rs` to make the code easier to maintain. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-7-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: configfs: re-export `configfs_attrs` from `configfs` moduleAndreas Hindborg
Re-export `configfs_attrs` from `configfs` module, so that users can import the macro from the `configfs` module rather than the root of the `kernel` crate. Also update users to import from the new path. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-6-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: str: introduce `kstrtobool` functionAndreas Hindborg
Add a Rust wrapper for the kernel's `kstrtobool` function that converts common user inputs into boolean values. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-5-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: str: introduce `NullTerminatedFormatter`Andreas Hindborg
Add `NullTerminatedFormatter`, a formatter that writes a null terminated string to an array or slice buffer. Because this type needs to manage the trailing null marker, the existing formatters cannot be used to implement this type. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-4-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: str: expose `str::{Formatter, RawFormatter}` publicly.Andreas Hindborg
rnull is going to make use of `str::Formatter` and `str::RawFormatter`, so expose them with public visibility. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-3-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: str: allow `str::Formatter` to format into `&mut [u8]`.Andreas Hindborg
Improve `Formatter` so that it can write to an array or slice buffer. Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Reviewed-by: Alice Ryhl <aliceryhl@google.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-2-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: str: normalize imports in `str.rs`Andreas Hindborg
Clean up imports in `str.rs`. This makes future code manipulation more manageable. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Signed-off-by: Andreas Hindborg <a.hindborg@kernel.org> Link: https://lore.kernel.org/r/20250902-rnull-up-v6-16-v7-1-b5212cc89b98@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2025-09-02rust: device: fix unresolved link to drm::DeviceDanilo Krummrich
drm::Device is only available when CONFIG_DRM=y, which we have to consider for intra-doc links, otherwise the rustdoc make target produces the following warning. >> warning: unresolved link to `kernel::drm::Device` --> rust/kernel/device.rs:154:22 | 154 | /// [`drm::Device`]: kernel::drm::Device | ^^^^^^^^^^^^^^^^^^^ no item named `drm` in module `kernel` | = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default Fix this by making the intra-doc link conditional on CONFIG_DRM being enabled. Fixes: d6e26c1ae4a6 ("device: rust: expand documentation for Device") Suggested-by: Alice Ryhl <aliceryhl@google.com> Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202508261644.9LclwUgt-lkp@intel.com/ Reviewed-by: Alice Ryhl <aliceryhl@google.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20250829195745.31174-1-dakr@kernel.org Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-01rust: pci: inline several tiny functionsJohn Hubbard
Several previous commits added Vendor and Class functionality. As part of that, the new functions were inlined where appropriate. But that left this file with inconsistent use of inlining. Fix that by inlining the remaining items that should be. Cc: Danilo Krummrich <dakr@kernel.org> Cc: Elle Rhumsaa <elle@weathered-steel.dev> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: John Hubbard <jhubbard@nvidia.com> Link: https://lore.kernel.org/r/20250829223632.144030-7-jhubbard@nvidia.com Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-01rust: pci: use pci::Vendor instead of bindings::PCI_VENDOR_ID_*John Hubbard
Change Device::vendor_id() to return a Vendor type, and change DeviceId::from_id() to accept a Vendor type. Use the new pci::Vendor in the various Rust for Linux callers who were previously using bindings::PCI_VENDOR_ID_*. Doing so also allows removing "use kernel::bindings" entirely from most of the affected files here. Also, mark vendor_id() as inline. Cc: Danilo Krummrich <dakr@kernel.org> Cc: Elle Rhumsaa <elle@weathered-steel.dev> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: John Hubbard <jhubbard@nvidia.com> Link: https://lore.kernel.org/r/20250829223632.144030-6-jhubbard@nvidia.com [ Replace "as a validated vendor" with "as [`Vendor`]". - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-01rust: pci: add DeviceId::from_class_and_vendor() methodJohn Hubbard
Add a new method to create PCI DeviceIds that match both a specific vendor and PCI class. This is more targeted than the existing from_class() method as it filters on both vendor and class criteria. Cc: Danilo Krummrich <dakr@kernel.org> Cc: Elle Rhumsaa <elle@weathered-steel.dev> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: John Hubbard <jhubbard@nvidia.com> Link: https://lore.kernel.org/r/20250829223632.144030-4-jhubbard@nvidia.com [ Minor doc-comment improvements. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-01rust: pci: provide access to PCI Vendor valuesJohn Hubbard
This allows callers to write Vendor::SOME_COMPANY instead of bindings::PCI_VENDOR_ID_SOME_COMPANY. New APIs: Vendor::SOME_COMPANY Vendor::from_raw() -- Only accessible from the pci (parent) module. Vendor::as_raw() Vendor: fmt::Display for Vendor Cc: Danilo Krummrich <dakr@kernel.org> Cc: Elle Rhumsaa <elle@weathered-steel.dev> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: John Hubbard <jhubbard@nvidia.com> Link: https://lore.kernel.org/r/20250829223632.144030-3-jhubbard@nvidia.com [ Minor doc-comment improvements, align Debug and Display. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-01rust: pci: provide access to PCI Class and Class-related itemsJohn Hubbard
Allow callers to write Class::STORAGE_SCSI instead of bindings::PCI_CLASS_STORAGE_SCSI, for example. New APIs: Class::STORAGE_SCSI, Class::NETWORK_ETHERNET, etc. Class::from_raw() -- Only callable from pci module. Class::as_raw() ClassMask: Full, ClassSubclass Device::pci_class() Cc: Danilo Krummrich <dakr@kernel.org> Cc: Elle Rhumsaa <elle@weathered-steel.dev> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: John Hubbard <jhubbard@nvidia.com> Link: https://lore.kernel.org/r/20250829223632.144030-2-jhubbard@nvidia.com [ Minor doc-comment improvements, align Debug and Display. - Danilo ] Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2025-09-01rust: file: use to_result for error handlingOnur Özkan
Simplifies error handling by replacing the manual check of the return value with the `to_result` helper. Signed-off-by: Onur Özkan <work@onurozkan.dev> Link: https://lore.kernel.org/20250821091001.28563-1-work@onurozkan.dev Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-08-31rust: use the new name Location::file_as_c_str() in Rust >= 1.91.0Alice Ryhl
As part of the stabilization of Location::file_with_nul(), it was brought up that the with_nul() suffix usually means something else in Rust APIs, so the API is being renamed prior to stabilization [1]. Thus, use the new name on new rustc versions. Link: https://www.github.com/rust-lang/rust/pull/145928 [1] Signed-off-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Boqun Feng <boqun.feng@gmail.com> Link: https://lore.kernel.org/r/20250827-file_as_c_str-v1-1-d3f5a3916a9c@google.com [ Kept `cfg` separation. Reworded slightly. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
2025-08-28rust: transmute: add `from_bytes_copy` method to `FromBytes` traitAlexandre Courbot
`FromBytes::from_bytes` comes with a few practical limitations: - It requires the bytes slice to have the same alignment as the returned type, which might not be guaranteed in the case of a byte stream, - It returns a reference, requiring the returned type to implement `Clone` if one wants to keep the value for longer than the lifetime of the slice. To overcome these when needed, add a `from_bytes_copy` with a default implementation in the trait. `from_bytes_copy` returns an owned value that is populated using an unaligned read, removing the lifetime constraint and making it usable even on non-aligned byte slices. Reviewed-by: Alice Ryhl <aliceryhl@google.com> Acked-by: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Reviewed-by: Benno Lossin <lossin@kernel.org> Link: https://lore.kernel.org/r/20250826-nova_firmware-v2-1-93566252fe3a@nvidia.com Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2025-08-28rust: transmute: Add methods for FromBytes traitChristian S. Lima
The two methods added take a slice of bytes and return those bytes in a specific type. These methods are useful when we need to transform the stream of bytes into specific type. Since the `is_aligned` method for pointer types has been stabilized in `1.79` version and is being used in this patch, I'm enabling the feature. In this case, using this method is useful to check the alignment and avoid a giant boilerplate, such as `(foo.as_ptr() as usize) % core::mem::align_of::<T>() == 0`. Also add `#[allow(clippy::incompatible_msrv)]` where needed until the MSRV is updated to `1.79`. Suggested-by: Benno Lossin <benno.lossin@proton.me> Link: https://github.com/Rust-for-Linux/linux/issues/1119 Reviewed-by: Alice Ryhl <aliceryhl@google.com> Tested-by: Alexandre Courbot <acourbot@nvidia.com> Reviewed-by: Alexandre Courbot <acourbot@nvidia.com> Signed-off-by: Christian S. Lima <christiansantoslima21@gmail.com> Link: https://lore.kernel.org/r/20250824213134.27079-1-christiansantoslima21@gmail.com Acked-by: Miguel Ojeda <ojeda@kernel.org> [acourbot@nvidia.com: minor rewording of commit messages and doccomments] [acourbot@nvidia.com: revert slice implementation removal] [acourbot@nvidia.com: move incompatible_msrv clippy allow closer to site of need] [acourbot@nvidia.com: call the doctest method] Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
2025-08-28rust: regulator: use `to_result` for error handlingOnur Özkan
Simplifies error handling by replacing the manual check of the return value with the `to_result` helper. Signed-off-by: Onur Özkan <work@onurozkan.dev> Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com> Message-ID: <20250821090720.23939-1-work@onurozkan.dev> Signed-off-by: Mark Brown <broonie@kernel.org>
generated by cgit (git 2.34.1) at 2025-10-04 01:57:07 +0000