linux-kernel - [PATCH v3 0/2] rust: add support for request

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Message-Id: <20250514-topics-tyr-request_irq-v3-0-d6fcc2591a88@collabora.com>
Date: Wed, 14 May 2025 16:20:50 -0300
From: Daniel Almeida <daniel.almeida@...labora.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>, 
 Thomas Gleixner <tglx@...utronix.de>
Cc: linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org, 
 Daniel Almeida <daniel.almeida@...labora.com>
Subject: [PATCH v3 0/2] rust: add support for request_irq


---
Changes in v3:
- Rebased on driver-core-next
- Added patch to get the irq numbers from a platform device (thanks,
  Christian!)
- Split flags into its own file.
- Change iff to "if and only if"
- Implement PartialEq and Eq for Flags
- Fix some broken docs/markdown
- Reexport most things so users can elide ::request from the path
- Add a blanket implementation of ThreadedHandler and Handler for
  Arc/Box<T: Handler> that just forwards the call to the T. This lets us
  have Arc<Foo> and Box<Foo> as handlers if Foo: Handler.
- Rework the examples a bit.
- Remove "as _" casts in favor of "as u64" for flags. This is needed to
  cast the individual flags into u64.
- Use #[repr(u32)] for ThreadedIrqReturn and IrqReturn.
- Wrapped commit messages to < 75 characters

- Link to v2: https://lore.kernel.org/r/20250122163932.46697-1-daniel.almeida@collabora.com

Changes in v2:
- Added Co-developed-by tag to account for the work that Alice did in order to
figure out how to do this without Opaque<T> (Thanks!)
- Removed Opaque<T> in favor of plain T
- Fixed the examples
- Made sure that the invariants sections are the last entry in the docs
- Switched to slot.cast() where applicable,
- Mentioned in the safety comments that we require that T: Sync,
- Removed ThreadedFnReturn in favor of IrqReturn,
- Improved the commit message

Link to v1: https://lore.kernel.org/rust-for-linux/20241024-topic-panthor-rs-request_irq-v1-1-7cbc51c182ca@collabora.com/

---
Daniel Almeida (2):
      rust: irq: add support for request_irq()
      rust: platform: add irq accessors

 rust/bindings/bindings_helper.h |   1 +
 rust/helpers/helpers.c          |   1 +
 rust/helpers/irq.c              |   9 +
 rust/kernel/irq.rs              |  24 +++
 rust/kernel/irq/flags.rs        | 102 +++++++++
 rust/kernel/irq/request.rs      | 455 ++++++++++++++++++++++++++++++++++++++++
 rust/kernel/lib.rs              |   1 +
 rust/kernel/platform.rs         |  52 +++++
 8 files changed, 645 insertions(+)
---
base-commit: 0af2f6be1b4281385b618cb86ad946eded089ac8
change-id: 20250514-topics-tyr-request_irq-4f6a30837ea8

Best regards,
-- 
Daniel Almeida <daniel.almeida@...labora.com>