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-rw-r--r--rust/kernel/bits.rs6
1 files changed, 4 insertions, 2 deletions
diff --git a/rust/kernel/bits.rs b/rust/kernel/bits.rs
index 553d50265883..2daead125626 100644
--- a/rust/kernel/bits.rs
+++ b/rust/kernel/bits.rs
@@ -27,7 +27,8 @@ macro_rules! impl_bit_fn {
///
/// This version is the default and should be used if `n` is known at
/// compile time.
- #[inline]
+ // Always inline to optimize out error path of `build_assert`.
+ #[inline(always)]
pub const fn [<bit_ $ty>](n: u32) -> $ty {
build_assert!(n < <$ty>::BITS);
(1 as $ty) << n
@@ -75,7 +76,8 @@ macro_rules! impl_genmask_fn {
/// This version is the default and should be used if the range is known
/// at compile time.
$(#[$genmask_ex])*
- #[inline]
+ // Always inline to optimize out error path of `build_assert`.
+ #[inline(always)]
pub const fn [<genmask_ $ty>](range: RangeInclusive<u32>) -> $ty {
let start = *range.start();
let end = *range.end();