rust: module: move module types into `module.rs`

Move `Module`, `InPlaceModule`, `ModuleMetadata` and `ThisModule` from
`lib.rs` into a new `rust/kernel/module.rs`. Re-export them from `lib.rs`
to avoid tree-wide changes.

Switch six bus driver registrations from `module.0` to the public
`ThisModule::as_ptr()` accessor, since the field is no longer visible
outside the new `module` submodule.

No functional change.

Assisted-by: opencode:glm-5.2
Suggested-by: Gary Guo <gary@garyguo.net>
Link: https://lore.kernel.org/all/DJFIQPLOVO4T.1K8T0VZM30LDA@garyguo.net/
Reviewed-by: Gary Guo <gary@garyguo.net>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Petr Pavlu <petr.pavlu@suse.com>
Signed-off-by: Alvin Sun <alvin.sun@linux.dev>
Link: https://patch.msgid.link/20260811-fix-fops-owner-v10-1-7e71776f9dbe@linux.dev
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/rust/kernel/platform.rs b/rust/kernel/platform.rs
index 9b362e0495d3..5c1d2b8c0c42 100644
--- a/rust/kernel/platform.rs
+++ b/rust/kernel/platform.rs
@@ -83,7 +83,7 @@ unsafe impl<T: Driver> driver::RegistrationOps for Adapter<T> {
 
         // SAFETY: `pdrv` is guaranteed to be a valid `DriverType`.
         to_result(unsafe {
-            bindings::__platform_driver_register(pdrv.get(), module.0, name.as_char_ptr())
+            bindings::__platform_driver_register(pdrv.get(), module.as_ptr(), name.as_char_ptr())
         })
     }