rust: driver: move 'static bounds to constructor

With the ForeignOwnable lifetime change, the 'static bound is no longer
necessary on the drvdata methods or bus adapter impls. Move it to the
Registration constructor instead.

Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260525202921.124698-4-dakr@kernel.org
Co-developed-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/rust/kernel/driver.rs b/rust/kernel/driver.rs
index 36de8098754d..c8406dc4da60 100644
--- a/rust/kernel/driver.rs
+++ b/rust/kernel/driver.rs
@@ -181,7 +181,7 @@ unsafe impl<T: RegistrationOps> Sync for Registration<T> {}
 // any thread, so `Registration` is `Send`.
 unsafe impl<T: RegistrationOps> Send for Registration<T> {}
 
-impl<T: RegistrationOps + 'static> Registration<T> {
+impl<T: RegistrationOps> Registration<T> {
     extern "C" fn post_unbind_callback(dev: *mut bindings::device) {
         // SAFETY: The driver core only ever calls the post unbind callback with a valid pointer to
         // a `struct device`.
@@ -215,7 +215,10 @@ impl<T: RegistrationOps + 'static> Registration<T> {
     }
 
     /// Creates a new instance of the registration object.
-    pub fn new(name: &'static CStr, module: &'static ThisModule) -> impl PinInit<Self, Error> {
+    pub fn new(name: &'static CStr, module: &'static ThisModule) -> impl PinInit<Self, Error>
+    where
+        T: 'static,
+    {
         try_pin_init!(Self {
             reg <- Opaque::try_ffi_init(|ptr: *mut T::DriverType| {
                 // SAFETY: `try_ffi_init` guarantees that `ptr` is valid for write.