From: Alexandre Courbot <acourbot@nvidia.com>
Date: Mon, 8 Dec 2025 02:47:05 +0000 (+0900)
Subject: rust: num: bounded: add missing comment for always inlined function
X-Git-Tag: v6.19-rc8~13^2~6
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2af6ad09fc7dfe9b3610100983cccf16998bf34d;p=thirdparty%2Flinux.git

rust: num: bounded: add missing comment for always inlined function

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>
Link: https://patch.msgid.link/20251208-io-build-assert-v3-7-98aded02c1ea@nvidia.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
---

diff --git a/rust/kernel/num/bounded.rs b/rust/kernel/num/bounded.rs
index c9a44e12c19b..5ef8361cf5d5 100644
--- a/rust/kernel/num/bounded.rs
+++ b/rust/kernel/num/bounded.rs
@@ -367,6 +367,7 @@ where
     /// 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!(