linux-kernel - Re: [PATCH] rust: devres: initialize Devres::inner::data last

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Message-Id: <DBCWVO6JLS7R.2U9HD1LH0JNO@kernel.org>
Date: Tue, 15 Jul 2025 22:29:29 +0200
From: "Danilo Krummrich" <dakr@...nel.org>
To: <gregkh@...uxfoundation.org>, <rafael@...nel.org>, <ojeda@...nel.org>,
 <alex.gaynor@...il.com>, <boqun.feng@...il.com>, <gary@...yguo.net>,
 <bjorn3_gh@...tonmail.com>, <lossin@...nel.org>, <a.hindborg@...nel.org>,
 <aliceryhl@...gle.com>, <tmgross@...ch.edu>,
 <daniel.almeida@...labora.com>, <m.wilczynski@...sung.com>
Cc: <rust-for-linux@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] rust: devres: initialize Devres::inner::data last

On Mon Jul 14, 2025 at 1:32 PM CEST, Danilo Krummrich wrote:
> Users may want to access the Devres object from callbacks registered
> through the initialization of Devres::inner::data.
>
> For those accesses to be valid, Devres::inner::data must be initialized
> last [1].
>
> Credit to Boqun for spotting this [2].
>
> Link: https://lore.kernel.org/lkml/DBBPHO26CPBS.2OVI1OERCB2J5@kernel.org/ [1]
> Link: https://lore.kernel.org/lkml/aHSmxWeIy3L-AKIV@Mac.home/ [2]
> Signed-off-by: Danilo Krummrich <dakr@...nel.org>

Applied to driver-core-testing, thanks!