[PATCH v3 7/7] rust: num: bounded: add missing comment for always inlined function

[Alexandre Courbot <acourbot@nvidia.com>]

This code is always inlined to avoid a build error if the error path of
`build_assert` cannot be optimized out. Add a comment justifying the
`#[inline(always)]` property to avoid it being taken away by mistake.

Reviewed-by: Daniel Almeida <daniel.almeida@collabora.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
---
 rust/kernel/num/bounded.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rust/kernel/num/bounded.rs b/rust/kernel/num/bounded.rs
index f870080af8ac..6dfcf9c1a55a 100644
--- a/rust/kernel/num/bounded.rs
+++ b/rust/kernel/num/bounded.rs
@@ -363,6 +363,7 @@ pub fn try_new(value: T) -> Option<Self> {
     /// assert_eq!(Bounded::<u8, 1>::from_expr(1).get(), 1);
     /// assert_eq!(Bounded::<u16, 8>::from_expr(0xff).get(), 0xff);
     /// ```
+    // Always inline to optimize out error path of `build_assert`.
     #[inline(always)]
     pub fn from_expr(expr: T) -> Self {
         crate::build_assert!(

-- 
2.52.0