linux-kernel - Re: [PATCH v15 1/7] rust: sync: add `SetOnce`

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Message-Id: <DB6QM8WOX9FS.2W36R3YF2VS0F@kernel.org>
Date: Tue, 08 Jul 2025 16:19:04 +0200
From: "Benno Lossin" <lossin@...nel.org>
To: "Andreas Hindborg" <a.hindborg@...nel.org>
Cc: "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>, "Alice Ryhl" <aliceryhl@...gle.com>, "Masahiro
 Yamada" <masahiroy@...nel.org>, "Nathan Chancellor" <nathan@...nel.org>,
 "Luis Chamberlain" <mcgrof@...nel.org>, "Danilo Krummrich"
 <dakr@...nel.org>, "Nicolas Schier" <nicolas.schier@...ux.dev>, "Trevor
 Gross" <tmgross@...ch.edu>, "Adam Bratschi-Kaye" <ark.email@...il.com>,
 <rust-for-linux@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
 <linux-kbuild@...r.kernel.org>, "Petr Pavlu" <petr.pavlu@...e.com>, "Sami
 Tolvanen" <samitolvanen@...gle.com>, "Daniel Gomez" <da.gomez@...sung.com>,
 "Simona Vetter" <simona.vetter@...ll.ch>, "Greg KH"
 <gregkh@...uxfoundation.org>, "Fiona Behrens" <me@...enk.dev>, "Daniel
 Almeida" <daniel.almeida@...labora.com>, <linux-modules@...r.kernel.org>
Subject: Re: [PATCH v15 1/7] rust: sync: add `SetOnce`

On Tue Jul 8, 2025 at 3:06 PM CEST, Andreas Hindborg wrote:
> "Benno Lossin" <lossin@...nel.org> writes:
>> On Mon Jul 7, 2025 at 3:29 PM CEST, Andreas Hindborg wrote:
>>> diff --git a/rust/kernel/sync.rs b/rust/kernel/sync.rs
>>> index 81e3a806e57e2..13e6bc7fa87ac 100644
>>> --- a/rust/kernel/sync.rs
>>> +++ b/rust/kernel/sync.rs
>>> @@ -18,6 +18,7 @@
>>>  mod locked_by;
>>>  pub mod poll;
>>>  pub mod rcu;
>>> +mod set_once;
>>
>> I would have named this `once`.
>
> So module `once` and struct `SetOnce`? Struct name `Once` would lead
> thoughts to `std::sync::Once`, which is a different thing.

Hmm I thought that `Once` and `SetOnce` would live in the same module,
but if they don't then I think it's better to keep the `set_once`
module as-is.

---
Cheers,
Benno