linux-kernel - Re: [PATCH 2/3] rust: xarray: abstract `xa_alloc

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Message-ID: <20251008082649.1f9cacd0@nimda.home>
Date: Wed, 8 Oct 2025 08:26:49 +0300
From: Onur Özkan <work@...rozkan.dev>
To: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
Cc: Alice Ryhl <aliceryhl@...gle.com>, rust-for-linux@...r.kernel.org,
 ojeda@...nel.org, alex.gaynor@...il.com, boqun.feng@...il.com,
 gary@...yguo.net, bjorn3_gh@...tonmail.com, lossin@...nel.org,
 tmgross@...ch.edu, dakr@...nel.org, linux-kernel@...r.kernel.org,
 acourbot@...dia.com, airlied@...il.com, simona@...ll.ch,
 maarten.lankhorst@...ux.intel.com, mripard@...nel.org, tzimmermann@...e.de,
 corbet@....net, lyude@...hat.com, linux-doc@...r.kernel.org
Subject: Re: [PATCH 2/3] rust: xarray: abstract `xa_alloc_cyclic`

On Tue, 7 Oct 2025 19:28:31 +0200
Miguel Ojeda <miguel.ojeda.sandonis@...il.com> wrote:

> On Tue, Oct 7, 2025 at 7:19 PM Onur Özkan <work@...rozkan.dev> wrote:
> >
> > Why do we not like to use the bindings type directly?
> 
> For public APIs, we generally try to avoid exposing C types:
> 
>     https://docs.kernel.org/rust/general-information.html#abstractions-vs-bindings
> 
> Sometimes it still makes sense, of course, e.g. a method may return
> an inner type so that it gets used by other abstractions to call into
> C. But generally we want to avoid exposing those for drivers and other
> abstractions wherever possible.
> 
> Cheers,
> Miguel

Thank you for explaining it, I will drop the bindings type in the next
version.

Regards,
Onur