user/sven/linux.git/rust/kernel, branch v6.17

Merge tag 'driver-core-6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

2025-09-13T17:36:06Z

Pull driver core fixes from Danilo Krummrich: - Fix UAF in cgroup pressure polling by using kernfs_get_active_of() to prevent operations on released file descriptors - Fix unresolved intra-doc link in the documentation of struct Device when CONFIG_DRM != y - Update the DMA Rust MAINTAINERS entry * tag 'driver-core-6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: MAINTAINERS: Update the DMA Rust entry kernfs: Fix UAF in polling when open file is released rust: device: fix unresolved link to drm::Device

Merge tag 'rust-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

2025-09-06T19:33:09Z

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

rust: device: fix unresolved link to drm::Device

2025-09-02T09:16:36Z

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 Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202508261644.9LclwUgt-lkp@intel.com/ Reviewed-by: Alice Ryhl Acked-by: Greg Kroah-Hartman Link: https://lore.kernel.org/r/20250829195745.31174-1-dakr@kernel.org Signed-off-by: Danilo Krummrich

rust: use the new name Location::file_as_c_str() in Rust >= 1.91.0

2025-08-31T21:34:34Z

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 Reviewed-by: Boqun Feng 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

rust: mm: mark VmaNew as transparent

2025-08-28T05:45:41Z

Unsafe code in VmaNew's methods assumes that the type has the same layout as the inner `bindings::vm_area_struct`. This is not guaranteed by the default struct representation in Rust, but requires specifying the `transparent` representation. Link: https://lkml.kernel.org/r/20250812132712.61007-1-baptiste.lepers@gmail.com Fixes: dcb81aeab406 ("mm: rust: add VmaNew for f_ops->mmap()") Signed-off-by: Baptiste Lepers Reviewed-by: Alice Ryhl Cc: Alex Gaynor Cc: Andreas Hindborg Cc: Björn Roy Baron Cc: Boqun Feng Cc: Danilo Krummrich Cc: Gary Guo Cc: Jann Horn Cc: Liam Howlett Cc: Lorenzo Stoakes Cc: Miguel Ojeda Cc: Trevor Gross Cc: Signed-off-by: Andrew Morton

Merge tag 'driver-core-6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

2025-08-23T13:04:32Z

Pull driver core fixes from Danilo Krummrich: - Fix swapped handling of lru_gen and lru_gen_full debugfs files in vmscan - Fix debugfs mount options (uid, gid, mode) being silently ignored - Fix leak of devres action in the unwind path of Devres::new() - Documentation: - Expand and fix documentation of (outdated) Device, DeviceContext and generic driver infrastructure - Fix C header link of faux device abstractions - Clarify expected interaction with the security team - Smooth text flow in the security bug reporting process documentation * tag 'driver-core-6.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: Documentation: smooth the text flow in the security bug reporting process Documentation: clarify the expected collaboration with security bugs reporters debugfs: fix mount options not being applied rust: devres: fix leaking call to devm_add_action() rust: faux: fix C header link driver: rust: expand documentation for driver infrastructure device: rust: expand documentation for Device device: rust: expand documentation for DeviceContext mm/vmscan: fix inverted polarity in lru_gen_seq_show()

rust: alloc: fix `rusttest` by providing `Cmalloc::aligned_layout` too

2025-08-16T23:29:21Z

Commit fde578c86281 ("rust: alloc: replace aligned_size() with Kmalloc::aligned_layout()") provides a public `aligned_layout` function in `Kamlloc`, but not in `Cmalloc`, and thus uses of it will trigger an error in `rusttest`. Such a user appeared in the following commit 22ab0641b939 ("rust: drm: ensure kmalloc() compatible Layout"): error[E0599]: no function or associated item named `aligned_layout` found for struct `alloc::allocator_test::Cmalloc` in the current scope --> rust/kernel/drm/device.rs:100:31 | 100 | let layout = Kmalloc::aligned_layout(Layout::new::()); | ^^^^^^^^^^^^^^ function or associated item not found in `Cmalloc` | ::: rust/kernel/alloc/allocator_test.rs:19:1 | 19 | pub struct Cmalloc; | ------------------ function or associated item `aligned_layout` not found for this struct Thus add an equivalent one for `Cmalloc`. Fixes: fde578c86281 ("rust: alloc: replace aligned_size() with Kmalloc::aligned_layout()") Signed-off-by: Miguel Ojeda Link: https://lore.kernel.org/r/20250816204215.2719559-1-ojeda@kernel.org Signed-off-by: Danilo Krummrich

rust: devres: fix leaking call to devm_add_action()

2025-08-13T23:52:15Z

When the data argument of Devres::new() is Err(), we leak the preceding call to devm_add_action(). In order to fix this, call devm_add_action() in a unit type initializer in try_pin_init!() after the initializers of all other fields. Fixes: f5d3ef25d238 ("rust: devres: get rid of Devres' inner Arc") Reviewed-by: Alice Ryhl Reviewed-by: Benno Lossin Link: https://lore.kernel.org/r/20250812130928.11075-1-dakr@kernel.org Signed-off-by: Danilo Krummrich

rust: faux: fix C header link

2025-08-13T15:40:28Z

Starting with Rust 1.91.0 (expected 2025-10-30), `rustdoc` has improved some false negatives around intra-doc links [1], and it found a broken intra-doc link we currently have: error: unresolved link to `include/linux/device/faux.h` --> rust/kernel/faux.rs:7:17 | 7 | //! C header: [`include/linux/device/faux.h`] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ no item named `include/linux/device/faux.h` in scope | = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` = note: `-D rustdoc::broken-intra-doc-links` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(rustdoc::broken_intra_doc_links)]` Our `srctree/` C header links are not intra-doc links, thus they need the link destination. Thus fix it. Cc: stable Link: https://github.com/rust-lang/rust/pull/132748 [1] Fixes: 78418f300d39 ("rust/kernel: Add faux device bindings") Signed-off-by: Miguel Ojeda Reviewed-by: Benno Lossin Reviewed-by: Alice Ryhl Link: https://lore.kernel.org/r/20250804171311.1186538-1-ojeda@kernel.org Signed-off-by: Greg Kroah-Hartman

driver: rust: expand documentation for driver infrastructure

2025-08-12T13:23:49Z

Add documentation about generic driver infrastructure, representing a guideline on how the generic driver infrastructure is intended to be used to implement bus specific driver APIs. This covers aspects such as the bus specific driver trait, adapter implementation, driver registration and custom device ID types. Reviewed-by: Daniel Almeida Reviewed-by: Greg Kroah-Hartman Reviewed-by: Alexandre Courbot Reviewed-by: Alice Ryhl Link: https://lore.kernel.org/r/20250722150110.23565-4-dakr@kernel.org Signed-off-by: Danilo Krummrich