[PATCH RFC 01/11] rust: types: Add Opaque::zeroed()

[Asahi Lina <lina@xxxxxxxxxxxxx>]

Opaque types are internally MaybeUninit, so it's safe to actually
zero-initialize them as long as we don't claim they are initialized.
This is useful for many FFI types that are expected to be zero-inited by
the user.

Signed-off-by: Asahi Lina <lina@xxxxxxxxxxxxx>
---
 rust/kernel/types.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/rust/kernel/types.rs b/rust/kernel/types.rs
index 1e5380b16ed5..185d3493857e 100644
--- a/rust/kernel/types.rs
+++ b/rust/kernel/types.rs
@@ -237,6 +237,11 @@ pub const fn uninit() -> Self {
         Self(MaybeUninit::uninit())
     }
 
+    /// Creates a zeroed value.
+    pub fn zeroed() -> Self {
+        Self(MaybeUninit::zeroed())
+    }
+
     /// Creates a pin-initializer from the given initializer closure.
     ///
     /// The returned initializer calls the given closure with the pointer to the inner `T` of this

-- 
2.40.1