linux-kernel - Re: [PATCH v2] rust: alloc: allow coercion from `Box<T>` to `Box<dyn U>` if T implements U

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Message-ID: <CAH5fLggyQNrrMuN9RO9r1joXJZwyAKYZCr0_oWK9evn72gKsug@mail.gmail.com>
Date: Fri, 11 Apr 2025 14:24:45 +0200
From: Alice Ryhl <aliceryhl@...gle.com>
To: Alexandre Courbot <acourbot@...dia.com>
Cc: Danilo Krummrich <dakr@...nel.org>, 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>, 
	Trevor Gross <tmgross@...ch.edu>, rust-for-linux@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] rust: alloc: allow coercion from `Box<T>` to `Box<dyn
 U>` if T implements U

On Fri, Apr 11, 2025 at 2:07 PM Alexandre Courbot <acourbot@...dia.com> wrote:
>
> This enables the creation of trait objects backed by a Box, similarly to
> what can be done with the standard library.
>
> Suggested-by: Benno Lossin <benno.lossin@...ton.me>
> Signed-off-by: Alexandre Courbot <acourbot@...dia.com>

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>