linux-kernel - Re: [PATCH v3] rust: clist: Add support to interface with C linked lists

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Message-ID: <1933c83d-7692-431b-b2b8-9c9a637ebed2@nvidia.com>
Date: Mon, 1 Dec 2025 15:06:26 -0500
From: Joel Fernandes <joelagnelf@...dia.com>
To: John Hubbard <jhubbard@...dia.com>,
 Daniel Almeida <daniel.almeida@...labora.com>
Cc: linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
 Danilo Krummrich <dakr@...nel.org>, Dave Airlie <airlied@...il.com>,
 Alexandre Courbot <acourbot@...dia.com>, Alistair Popple
 <apopple@...dia.com>, Miguel Ojeda <ojeda@...nel.org>,
 Alex Gaynor <alex.gaynor@...il.com>, Boqun Feng <boqun.feng@...il.com>,
 Gary Guo <gary@...yguo.net>, bjorn3_gh@...tonmail.com,
 Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>,
 Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>,
 Simona Vetter <simona@...ll.ch>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 Timur Tabi <ttabi@...dia.com>, Joel Fernandes <joel@...lfernandes.org>,
 Lyude Paul <elle@...thered-steel.dev>, Andrea Righi <arighi@...dia.com>,
 Philipp Stanner <phasta@...nel.org>
Subject: Re: [PATCH v3] rust: clist: Add support to interface with C linked
 lists



On 12/1/2025 2:35 PM, John Hubbard wrote:
> On 12/1/25 8:51 AM, Daniel Almeida wrote:
>>> On 29 Nov 2025, at 18:30, Joel Fernandes <joelagnelf@...dia.com> wrote:
> ...
>>> +#[repr(transparent)]
>>> +pub struct ClistHead(Opaque<bindings::list_head>);
>>
>> I still think we should call this CList. IMHO, it does not make sense to have a
> 
> I am guessing you meant to place this comment after Clist, rather than here
> (after ClistHead)? Otherwise I don't know what you are actually suggesting?
> 
>> Clist, and a ClistHead (notice the capitalization). CList and CListHead are
>> easier to read and reason about.
>>
>> Did anyone push back on this?
>  
> If you are simply recommending renaming:
>     Clist     --> CList
>     ClistHead --> CListHead
> 
> ...then I'd say "+1" for that suggestion.

I am not fond of the suggestion but I don't oppose it either. I honestly don't
like the triple capitalization with CListHead though. Lets see where all of us
stand and then take a call on it. Opinions?

Thanks.