linux-kernel - Re: [PATCH v4 1/2] rust: add abstraction for struct device

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Message-ID: <20240620143741.3d03ff0b@eugeo>
Date: Thu, 20 Jun 2024 14:37:41 +0100
From: Gary Guo <gary@...yguo.net>
To: Danilo Krummrich <dakr@...hat.com>
Cc: gregkh@...uxfoundation.org, rafael@...nel.org, mcgrof@...nel.org,
 russ.weight@...ux.dev, ojeda@...nel.org, alex.gaynor@...il.com,
 wedsonaf@...il.com, boqun.feng@...il.com, bjorn3_gh@...tonmail.com,
 benno.lossin@...ton.me, a.hindborg@...sung.com, aliceryhl@...gle.com,
 airlied@...il.com, fujita.tomonori@...il.com, pstanner@...hat.com,
 ajanulgu@...hat.com, lyude@...hat.com, rust-for-linux@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/2] rust: add abstraction for struct device

On Tue, 18 Jun 2024 17:48:34 +0200
Danilo Krummrich <dakr@...hat.com> wrote:

> Add an (always) reference-counted abstraction for a generic C `struct
> device`. This abstraction encapsulates existing `struct device` instances
> and manages its reference count.
> 
> Subsystems may use this abstraction as a base to abstract subsystem
> specific device instances based on a generic `struct device`, such as
> `struct pci_dev`.
> 
> Co-developed-by: Wedson Almeida Filho <wedsonaf@...il.com>
> Signed-off-by: Wedson Almeida Filho <wedsonaf@...il.com>
> Signed-off-by: Danilo Krummrich <dakr@...hat.com>

Reviewed-by: Gary Guo <gary@...yguo.net>

> ---
>  rust/helpers.c        |   1 +
>  rust/kernel/device.rs | 102 ++++++++++++++++++++++++++++++++++++++++++
>  rust/kernel/lib.rs    |   1 +
>  3 files changed, 104 insertions(+)
>  create mode 100644 rust/kernel/device.rs