[$] DebugFS on Rust

DebugFS is the kernel's anything-goes, no-rules interface: whenever a kerneldeveloper needs quick access to internal details of the kernel to debug aproblem, or to implement an experimental control interface,they can expose them via DebugFS. This is possible because DebugFS is not subjectto the normal rules for user-space-interface stability, nor to the rules aboutexposing sensitive kernel information. Supporting DebugFS in Rust drivers is animportant step toward being able to debug real drivers on real hardware. MatthewMaurer spoke atKangrejos2025 about his recently mergedDebugFS bindings for Rust.