diff options
| author | Alexandre Courbot <acourbot@nvidia.com> | 2025-09-08 22:25:54 +0900 |
|---|---|---|
| committer | Miguel Ojeda <ojeda@kernel.org> | 2025-09-22 23:55:41 +0200 |
| commit | ea60cea07d8c632e8e593bb9de804abb0f6aee99 (patch) | |
| tree | 9cd1d9a4c85c9a6d4df4872cbab86fe7fd43c96b /rust/kernel/lib.rs | |
| parent | cfe872eba9071efe4292caeceaa65d130e4d3974 (diff) | |
rust: add `Alignment` type
Alignment operations are very common in the kernel. Since they are
always performed using a power-of-two value, enforcing this invariant
through a dedicated type leads to fewer bugs and can improve the
generated code.
Introduce the `Alignment` type, inspired by the nightly Rust type of the
same name and providing the same interface, and a new `Alignable` trait
allowing unsigned integers to be aligned up or down.
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
[ Used `build_assert!`, added intra-doc link, `allow`ed
`clippy::incompatible_msrv`, added `feature(const_option)`, capitalized
safety comment. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'rust/kernel/lib.rs')
| -rw-r--r-- | rust/kernel/lib.rs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/rust/kernel/lib.rs b/rust/kernel/lib.rs index 733f4d4e9bae..f910a5ab80ba 100644 --- a/rust/kernel/lib.rs +++ b/rust/kernel/lib.rs @@ -17,6 +17,7 @@ // the unstable features in use. // // Stable since Rust 1.79.0. +#![feature(generic_nonzero)] #![feature(inline_const)] // // Stable since Rust 1.81.0. @@ -28,6 +29,7 @@ // Stable since Rust 1.83.0. #![feature(const_maybe_uninit_as_mut_ptr)] #![feature(const_mut_refs)] +#![feature(const_option)] #![feature(const_ptr_write)] #![feature(const_refs_to_cell)] // @@ -110,6 +112,7 @@ pub mod pid_namespace; pub mod platform; pub mod prelude; pub mod print; +pub mod ptr; pub mod rbtree; pub mod regulator; pub mod revocable; |