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Date: Sat, 14 Feb 2026 11:23:39 +0100
Message-Id: <DGEM0E00MCEP.130GP2WIISA3V@kernel.org>
Cc: "Alice Ryhl" <aliceryhl@google.com>, "Daniel Almeida"
 <daniel.almeida@collabora.com>, "Miguel Ojeda" <ojeda@kernel.org>, "Boqun
 Feng" <boqun.feng@gmail.com>, "Gary Guo" <gary@garyguo.net>,
 =?utf-8?q?Bj=C3=B6rn_Roy_Baron?= <bjorn3_gh@protonmail.com>, "Andreas
 Hindborg" <a.hindborg@kernel.org>, "Trevor Gross" <tmgross@umich.edu>,
 <rust-for-linux@vger.kernel.org>, <linux-kernel@vger.kernel.org>
To: "Benno Lossin" <lossin@kernel.org>
From: "Danilo Krummrich" <dakr@kernel.org>
Subject: Re: [PATCH] rust: irq: add `'static` bounds to irq callbacks
References: <20260214092740.3201946-1-lossin@kernel.org>
In-Reply-To: <20260214092740.3201946-1-lossin@kernel.org>

On Sat Feb 14, 2026 at 10:27 AM CET, Benno Lossin wrote:
> These callback functions take a generic `T` that is used in the body as
> the generic argument in `Registration` and `ThreadedRegistration`. Those
> types require `T: 'static`, but due to a compiler bug this requirement
> isn't propagated to the function. Thus add the bound. This was caught in
> the upstream Rust CI [1].
>
> Signed-off-by: Benno Lossin <lossin@kernel.org>
> Link: https://github.com/rust-lang/rust/pull/149389 [1]

IIUC, the current code will not compile with a fixed compiler, right?

If this is correct, this needs to be backported; I can add the Fixes: tag a=
nd
Cc: stable when I apply the patch.

- Danilo