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From: Alice Ryhl <aliceryhl@google.com>
To: Markus Probst <markus.probst@posteo.de>
Cc: Lee Jones <lee@kernel.org>, Pavel Machek <pavel@kernel.org>,
	Danilo Krummrich <dakr@kernel.org>,
	 Miguel Ojeda <ojeda@kernel.org>,
	Alex Gaynor <alex.gaynor@gmail.com>,
	 Igor Korotin <igor.korotin.linux@gmail.com>,
	Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
	 Vlastimil Babka <vbabka@suse.cz>,
	"Liam R. Howlett" <Liam.Howlett@oracle.com>,
	 Uladzislau Rezki <urezki@gmail.com>,
	Boqun Feng <boqun.feng@gmail.com>, Gary Guo <gary@garyguo.net>,
	 bjorn3_gh@protonmail.com, Benno Lossin <lossin@kernel.org>,
	 Andreas Hindborg <a.hindborg@kernel.org>,
	Trevor Gross <tmgross@umich.edu>,
	 Daniel Almeida <daniel.almeida@collabora.com>,
	linux-leds@vger.kernel.org,  rust-for-linux@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4] rust: add pinned wrapper of Vec
Date: Thu, 9 Oct 2025 11:23:36 +0000	[thread overview]
Message-ID: <aOebOPvpi1sYKOuM@google.com> (raw)
In-Reply-To: <20251008181027.662616-3-markus.probst@posteo.de>

On Wed, Oct 08, 2025 at 06:10:45PM +0000, Markus Probst wrote:
> Implement a wrapper of Vec that guarantees that its content will never be
> moved, unless the item implements Unpin, allowing PinInit to be
> initialized on the Vec.

> +/// A pinned wrapper of the [`Vec`] type.
> +///
> +/// It is guaranteed that the contents will never be moved, unless T implements Unpin.
> +pub struct PinnedVec<T, A: Allocator>(Vec<T, A>);

Could we simply use `Pin<Vec<T>>` for this purpose? Why the new struct?

In fact, does the utility added by commit ac9eea3d08c2 ("rust: alloc:
implement Box::pin_slice()") not satisfy your needs?



Also, this thread seems mangled. Patches 2, 3, and 4 should all be
replies to patch 1. Right now the thread is deeply nested.

Alice

  parent reply	other threads:[~2025-10-09 11:23 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-08 18:10 [PATCH 0/4] Add first led driver written in Rust Markus Probst
2025-10-08 18:10 ` [PATCH 1/4] rust: i2c: add read and write byte data abstractions Markus Probst
2025-10-08 18:10   ` [PATCH 2/4] rust: add pinned wrapper of Vec Markus Probst
2025-10-08 18:10     ` [PATCH 3/4] rust: leds: add basic led classdev abstractions Markus Probst
2025-10-08 18:10       ` [PATCH 4/4] leds: add driver for synology atmega1608 controlled LEDs Markus Probst
2025-10-09 12:20         ` Danilo Krummrich
2025-10-09 12:30           ` Markus Probst
2025-10-09 12:41             ` Danilo Krummrich
2025-10-09 13:11               ` Alexandre Courbot
2025-11-23 20:00         ` Pavel Machek
2025-11-23 22:45           ` Markus Probst
2025-10-09 11:36       ` [PATCH 3/4] rust: leds: add basic led classdev abstractions Danilo Krummrich
2025-11-23 19:47       ` Pavel Machek
2025-10-09 11:23     ` Alice Ryhl [this message]
2025-10-09 12:06       ` [PATCH 2/4] rust: add pinned wrapper of Vec Markus Probst
2025-10-09 11:29   ` [PATCH 1/4] rust: i2c: add read and write byte data abstractions Alice Ryhl
2025-10-09 12:08   ` Danilo Krummrich
2025-11-23 19:44   ` Pavel Machek

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