[PATCH v5] rust: drm: Drop the use of Opaque for ioctl arguments

[Danilo Krummrich]

On Thu Jun 26, 2025 at 6:23 PM CEST, Beata Michalska wrote:
> With the Opaque<T>, the expectations are that Rust should not
> make any assumptions on the layout or invariants of the wrapped
> C types. That runs rather counter to ioctl arguments, which must
> adhere to certain data-layout constraints. By using Opaque<T>,
> ioctl handlers are forced to use unsafe code where none is actually
> needed. This adds needless complexity and maintenance overhead,
> brining no safety benefits.
> Drop the use of Opaque for ioctl arguments as that is not the best
> fit here.
>
> Signed-off-by: Beata Michalska <beata.michalska at arm.com>
> Acked-by: Danilo Krummrich <dakr at kernel.org>
> Reviewed-by: Boqun Feng <boqun.feng at gmail.com>

The patch does not apply on top of drm-misc-next and does not have a base
revision.

Can you please let me know which commit this patch applies on top of or resend?

- Danilo