Re: [PATCH v2 3/4] rust: auxiliary: add auxiliary registration

[Danilo Krummrich <dakr@kernel.org>]

On Mon, Mar 17, 2025 at 09:42:51PM +0100, Benoît du Garreau wrote:
> On Thu, 13 Mar 2025 03:23:52 +0100 Danilo Krummrich <dakr@kernel.org> wrote:
> 
> > +impl Registration {
> > +    /// Create and register a new auxiliary device.
> > +    pub fn new(parent: &device::Device, name: &CStr, id: u32, modname: &CStr) -> Result<Self> {
> > +        let boxed = KBox::new(Opaque::<bindings::auxiliary_device>::zeroed(), GFP_KERNEL)?;
> 
> You can use `KBox::init(kernel::init::zeroed(), GFP_KERNEL)` here. It avoids
> the need for the first patch.

You're right, that works indeed, the full call looks like this.

	let boxed = KBox::init(kernel::init::zeroed::<Opaque::<bindings::auxiliary_device>>(), GFP_KERNEL)?;

However, I think Opaque::zeroed() reads a bit better. Unless anything speaks
against adding it, I think I prefer it as it is.