Alice Ryhl 8802e16843 rust: types: add Opaque::cast_from ... Since commit b20fbbc08a ("rust: check type of `$ptr` in `container_of!`") we have enforced that the field pointer passed to container_of! must match the declared field. This caused mismatches when using a pointer to bindings::x for fields of type Opaque<bindings::x>. This situation encourages the user to simply pass field.cast() to the container_of! macro, but this is not great because you might accidentally pass a *mut bindings::y when the field type is Opaque<bindings::x>, which would be wrong. To help catch this kind of mistake, add a new Opaque::cast_from that wraps a raw pointer in Opaque without changing the inner type. Also update the docs to reflect this as well as some existing users. Signed-off-by: Alice Ryhl <aliceryhl@google.com> Acked-by: Andreas Hindborg <a.hindborg@kernel.org> Acked-by: Boqun Feng <boqun.feng@gmail.com> Reviewed-by: Danilo Krummrich <dakr@kernel.org> Acked-by: Danilo Krummrich <dakr@kernel.org> Link: https://lore.kernel.org/r/20250624-opaque-from-raw-v2-1-e4da40bdc59c@google.com Signed-off-by: Miguel Ojeda <ojeda@kernel.org>		2025-07-15 21:01:48 +02:00
..
gem	rust: types: add Opaque::cast_from	2025-07-15 21:01:48 +02:00
device.rs	rust: types: add Opaque::cast_from	2025-07-15 21:01:48 +02:00
driver.rs	rust: drm: gem: Add GEM object abstraction	2025-04-28 10:08:23 +02:00
file.rs	rust: drm: file: Add File abstraction	2025-04-24 14:11:58 +02:00
ioctl.rs
mod.rs	rust: drm: gem: Add GEM object abstraction	2025-04-28 10:08:23 +02:00