rust: add missing const markers for MSRV==1.83.0

Rust 1.83 allows more functions to be marked const.
Fix clippy with bumped minimum supported Rust version.

Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250908105005.2119297-5-pbonzini@redhat.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/rust/qemu-api/src/uninit.rs b/rust/qemu-api/src/uninit.rs
index 04123b4ae9..b0a829729d 100644
--- a/rust/qemu-api/src/uninit.rs
+++ b/rust/qemu-api/src/uninit.rs
@@ -12,7 +12,7 @@ pub struct MaybeUninitField<'a, T, U> {
 
 impl<'a, T, U> MaybeUninitField<'a, T, U> {
     #[doc(hidden)]
-    pub fn new(parent: &'a mut MaybeUninit<T>, child: *mut U) -> Self {
+    pub const fn new(parent: &'a mut MaybeUninit<T>, child: *mut U) -> Self {
         MaybeUninitField { parent, child }
     }
 
@@ -21,7 +21,7 @@ impl<'a, T, U> MaybeUninitField<'a, T, U> {
     /// Because the `MaybeUninitField` remembers the containing object,
     /// it is possible to use it in foreign APIs that initialize the
     /// child.
-    pub fn parent(f: &Self) -> *const T {
+    pub const fn parent(f: &Self) -> *const T {
         f.parent.as_ptr()
     }
 
@@ -30,7 +30,7 @@ impl<'a, T, U> MaybeUninitField<'a, T, U> {
     /// Because the `MaybeUninitField` remembers the containing object,
     /// it is possible to use it in foreign APIs that initialize the
     /// child.
-    pub fn parent_mut(f: &mut Self) -> *mut T {
+    pub const fn parent_mut(f: &mut Self) -> *mut T {
         f.parent.as_mut_ptr()
     }
 }