Building Rust-for-Linux on stable Rust

Posted Sep 25, 2024 16:56 UTC (Wed) by ojeda (subscriber, #143370)
In reply to: Building Rust-for-Linux on stable Rust by admalledd
Parent article: Committing to Rust in the kernel

To clarify: we have never recommended nightly or beta compilers (specific or not). We have always supported stable (released) compilers only, until v6.11.

Since v6.11, we support a minimum Rust version, currently 1.78.0. Thus 1.79, 1.80 and 1.81 work too. Beta and nightly compilers should also generally work now.

The Rust project and bindgen have now the kernel in their pre-merge CI. This means that unintentional changes to unstable features in Rust that break Linux do not get merged into Rust.

The #2 issue (and the sublists) definitely helps as you say (and it is one of the reasons why I started it in GitHub, since it cross-references issues), but having the CI is even better. Upstream Rust also has a tag for us, A-rust-for-linux, that we are starting to use.

This has also allowed us to cover the toolchains of a few Linux distributions too.

Please see https://rust-for-linux.com/rust-version-policy, as well as the Kernel Summit talk from LPC a few days ago (the stream/video is not available yet, as far as I understand).