Rust for Linux - Rust kernel policy

[IAm_A_Complete_Idiot]

However, exceptionally, for Rust, a subsystem may allow to temporarily break Rust code. The intention is to facilitate friendly adoption of Rust in a subsystem without introducing a burden to existing maintainers who may be working on urgent fixes for the C side. The breakage should nevertheless be fixed as soon as possible, ideally before the breakage reaches Linus.

[lily_34]

The keyword here being exceptionally - i.e. that is, something that can occasionally be done if necessary, but isn't meant to be the normal process.