On Thu Jun 26, 2025 at 1:15 PM CEST, Danilo Krummrich wrote:
> On Thu, Jun 26, 2025 at 12:36:23PM +0200, Benno Lossin wrote:
>> Or, we could change `Release` to be:
>>
>> pub trait Release {
>> type Ptr: ForeignOwnable;
>>
>> fn release(this: Self::Ptr);
>> }
>>
>> and then `register_release` is:
>>
>> pub fn register_release<T: Release>(dev: &Device<Bound>, data: T::Ptr) -> Result
>>
>> This way, one can store a `Box<T>` and get access to the `T` at the end.
>
> I think this was also the case before? Well, it was P::Borrowed instead.
Well you had access to a `&T`, but not the `T` directly.
>> Related questions:
>>
>> * should we implement `ForeignOwnable` for `&'static T`?
>
> There's already a patch on the list doing this in the context of DebugFS [1].
>
> [1] https://lore.kernel.org/lkml/20250624-debugfs-rust-v7-3-9c8835a7a20f@xxxxxxxxxx/
Ah, I'm not following that series at the moment.
---
Cheers,
Benno
