Re: [PATCH] rust: kernel: use strict provenance APIs

["Gary Guo" <gary@garyguo.net>]

On Fri May 22, 2026 at 6:19 PM BST, Tamir Duberstein wrote:
> Replace existing pointer-to-integer and integer-to-pointer conversions
> with calls to the strict provenance APIs.
> 
> The strict provenance APIs were stabilized in Rust 1.84.0 [1]. Since
> commit f32fb9c58a5b ("rust: bump Rust minimum supported version to
> 1.85.0 (Debian Trixie)"), the minimum supported Rust version is 1.85.0,
> so no polyfills are needed.
> 
> Link: https://blog.rust-lang.org/2025/01/09/Rust-1.84.0.html#strict-provenance-apis [1]
> Suggested-by: Benno Lossin <benno.lossin@proton.me>
> Link: https://lore.kernel.org/all/D8EIXDMRXMJP.36TFCGWZBRS3Y@proton.me/
> Signed-off-by: Tamir Duberstein <tamird@kernel.org>
> ---
>  rust/kernel/alloc.rs           |  2 +-
>  rust/kernel/alloc/allocator.rs |  2 +-
>  rust/kernel/devres.rs          |  4 ++--
>  rust/kernel/error.rs           |  2 +-
>  rust/kernel/io.rs              | 10 ++++++----
>  rust/kernel/io/mem.rs          |  4 ++--
>  rust/kernel/of.rs              |  2 +-
>  rust/kernel/pci/io.rs          |  4 ++--
>  rust/kernel/str.rs             | 16 ++++++----------
>  rust/kernel/uaccess.rs         |  2 +-

This touches many subsystems, so you'd need to break this up.

I'm also refactoring in my I/O projection series which I've already
converted most stuff that I touched to strict provenance:
https://lore.kernel.org/rust-for-linux/20260421-io_projection-v2-0-4c251c692ef4@garyguo.net/

Best,
Gary