Why should we have the same standard for two fundamentally different languages with distinct design philosophies and features?
Even if the C coding standard was used, it fundamentally will not make Rust more legible to C-only kernel devs. Imposing the C coding standard on Rust would be fundamentally counterproductive, as it would undermine Rust’s safety and productivity features. Rust’s coding guidelines align with its design principles, promoting idiomatic Rust code that leverages language features like ownership, borrowing, and lifetimes.
This ensures that Rust code in the kernel is safe, concurrent, and maintainable, while adhering to the language’s best practices. While the C coding standard served its purpose well for the procedural C language, it is ill-suited for a modern language like Rust, which has different priorities and language constructs. Having separate coding standards allows each language to shine in its respective domain within the kernel, leveraging their strengths while adhering to their respective design philosophies. Having separate coding standards for C and Rust within the kernel codebase is the sensible approach.