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Date: Sat, 24 Jan 2026 01:37:52 +0100
Message-Id: <DFWEEG2O31LK.1OM4B3RVINEJO@kernel.org>
To: "Gary Guo" <gary@kernel.org>
From: "Danilo Krummrich" <dakr@kernel.org>
Subject: Re: [PATCH v2 1/8] rust: device: support `dev_printk` on all
 devices
Cc: "Gary Guo" <gary@garyguo.net>, "Greg Kroah-Hartman"
 <gregkh@linuxfoundation.org>, "Rafael J. Wysocki" <rafael@kernel.org>,
 "Miguel Ojeda" <ojeda@kernel.org>, "Boqun Feng" <boqun.feng@gmail.com>,
 =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= <bjorn3_gh@protonmail.com>, "Benno Lossin"
 <lossin@kernel.org>, "Andreas Hindborg" <a.hindborg@kernel.org>, "Alice
 Ryhl" <aliceryhl@google.com>, "Trevor Gross" <tmgross@umich.edu>,
 <rust-for-linux@vger.kernel.org>, <linux-kernel@vger.kernel.org>
References: <20260123175854.176735-1-gary@kernel.org>
In-Reply-To: <20260123175854.176735-1-gary@kernel.org>

On Fri Jan 23, 2026 at 6:58 PM CET, Gary Guo wrote:
> From: Gary Guo <gary@garyguo.net>
>
> Currently, `dev_*` only works on the core `Device`, but not on any other
> bus or class device objects. This causes a pattern of
> `dev_info!(pdev.as_ref())` which is not ideal.
>
> This adds support of using these devices directly with `dev_*` macros, by
> adding `AsRef` call inside the macro. To make sure we can still use just
> `kernel::device::Device`, as `AsRef` implementation is added for it; this
> is typical for types that is designed to use with `AsRef` anyway, for
> example, `str` implements `AsRef<str>` and `Path` implements `AsRef<Path>=
`.
>
> Signed-off-by: Gary Guo <gary@garyguo.net>

Applied to driver-core-testing, thanks!