diff --git a/rust/kernel/alloc/kvec/errors.rs b/rust/kernel/alloc/kvec/errors.rs
index e7de5049ee47..985c5f2c3962 100644
--- a/rust/kernel/alloc/kvec/errors.rs
+++ b/rust/kernel/alloc/kvec/errors.rs
@@ -15,6 +15,7 @@ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 }
 
 impl<T> From<PushError<T>> for Error {
+    #[inline]
     fn from(_: PushError<T>) -> Error {
         // Returning ENOMEM isn't appropriate because the system is not out of memory. The vector
         // is just full and we are refusing to resize it.
@@ -32,6 +33,7 @@ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 }
 
 impl From<RemoveError> for Error {
+    #[inline]
     fn from(_: RemoveError) -> Error {
         EINVAL
     }
@@ -55,6 +57,7 @@ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 }
 
 impl<T> From<InsertError<T>> for Error {
+    #[inline]
     fn from(_: InsertError<T>) -> Error {
         EINVAL
     }
diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs
index 258b12afdcba..935787c2a91c 100644
--- a/rust/kernel/error.rs
+++ b/rust/kernel/error.rs
@@ -216,36 +216,42 @@ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 }
 
 impl From<AllocError> for Error {
+    #[inline]
     fn from(_: AllocError) -> Error {
         code::ENOMEM
     }
 }
 
 impl From<TryFromIntError> for Error {
+    #[inline]
     fn from(_: TryFromIntError) -> Error {
         code::EINVAL
     }
 }
 
 impl From<Utf8Error> for Error {
+    #[inline]
     fn from(_: Utf8Error) -> Error {
         code::EINVAL
     }
 }
 
 impl From<LayoutError> for Error {
+    #[inline]
     fn from(_: LayoutError) -> Error {
         code::ENOMEM
     }
 }
 
 impl From<fmt::Error> for Error {
+    #[inline]
     fn from(_: fmt::Error) -> Error {
         code::EINVAL
     }
 }
 
 impl From<core::convert::Infallible> for Error {
+    #[inline]
     fn from(e: core::convert::Infallible) -> Error {
         match e {}
     }
diff --git a/rust/kernel/xarray.rs b/rust/kernel/xarray.rs
index a49d6db28845..46e5f43223fe 100644
--- a/rust/kernel/xarray.rs
+++ b/rust/kernel/xarray.rs
@@ -172,6 +172,7 @@ pub struct StoreError<T> {
 }
 
 impl<T> From<StoreError<T>> for Error {
+    #[inline]
     fn from(value: StoreError<T>) -> Self {
         value.error
     }