linux-kernel - [PATCH 0/8] rust: DebugFS Bindings

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Message-ID: <20250429-debugfs-rust-v1-0-6b6e7cb7929f@google.com>
Date: Tue, 29 Apr 2025 23:15:54 +0000
From: Matthew Maurer <mmaurer@...gle.com>
To: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
	Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
	"Björn Roy Baron" <bjorn3_gh@...tonmail.com>, Benno Lossin <benno.lossin@...ton.me>, 
	Andreas Hindborg <a.hindborg@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>, 
	Trevor Gross <tmgross@...ch.edu>, Danilo Krummrich <dakr@...nel.org>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>, 
	Sami Tolvanen <samitolvanen@...gle.com>
Cc: linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, 
	Matthew Maurer <mmaurer@...gle.com>
Subject: [PATCH 0/8] rust: DebugFS Bindings

This series provides safe DebugFS bindings for Rust, with a sample
driver using them.

The primary intended way to use these bindings is to attach a data
object to a DebugFS directory handle, and use the contents of that
attached object to serve what's inside the directory. Through a
combination of pinning and equivariance, we can ensure that the pointers
in the attached object will remain valid until after the DebugFS
directory is made inaccessible.

Signed-off-by: Matthew Maurer <mmaurer@...gle.com>
---
Matthew Maurer (8):
      rust: debugfs: Bind DebugFS directory creation
      rust: debugfs: Bind file creation for long-lived Display
      rust: debugfs: Add scoped builder interface
      rust: debugfs: Allow subdir creation in builder interface
      rust: debugfs: Support format hooks
      rust: debugfs: Implement display_file in terms of fmt_file
      rust: debugfs: Helper macro for common case implementations
      rust: samples: Add debugfs sample

 MAINTAINERS                     |   2 +
 rust/bindings/bindings_helper.h |   1 +
 rust/helpers/dcache.c           |  12 +
 rust/helpers/helpers.c          |   1 +
 rust/kernel/debugfs.rs          | 514 ++++++++++++++++++++++++++++++++++++++++
 rust/kernel/lib.rs              |   1 +
 samples/rust/Kconfig            |  11 +
 samples/rust/Makefile           |   1 +
 samples/rust/rust_debugfs.rs    | 120 ++++++++++
 9 files changed, 663 insertions(+)
---
base-commit: b6a7783d306baf3150ac54cd5124f6e85dd375b0
change-id: 20250428-debugfs-rust-3cd5c97eb7d1

Best regards,
-- 
Matthew Maurer <mmaurer@...gle.com>