From ea60cea07d8c632e8e593bb9de804abb0f6aee99 Mon Sep 17 00:00:00 2001 From: Alexandre Courbot Date: Mon, 8 Sep 2025 22:25:54 +0900 Subject: 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 Reviewed-by: Danilo Krummrich Signed-off-by: Alexandre Courbot [ 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 --- rust/kernel/lib.rs | 3 +++ 1 file changed, 3 insertions(+) (limited to 'rust/kernel/lib.rs') 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; -- cgit v1.2.3