linux-kernel - [PATCH v4 3/3] rust: error: Replace pr_warn by pr_warn

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Message-Id: <20241126-pr_once_macros-v4-3-410b8ca9643e@tuta.io>
Date: Tue, 26 Nov 2024 17:40:59 +0100
From: Jens Korinth via B4 Relay <devnull+jens.korinth.tuta.io@...nel.org>
To: Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
 Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
 Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
 Benno Lossin <benno.lossin@...ton.me>, 
 Andreas Hindborg <a.hindborg@...nel.org>, Alice Ryhl <aliceryhl@...gle.com>, 
 Trevor Gross <tmgross@...ch.edu>
Cc: rust-for-linux@...r.kernel.org, 
 FUJITA Tomonori <fujita.tomonori@...il.com>, 
 Dirk Behme <dirk.behme@...il.com>, linux-kernel@...r.kernel.org, 
 Jens Korinth <jens.korinth@...a.io>
Subject: [PATCH v4 3/3] rust: error: Replace pr_warn by pr_warn_once

From: Jens Korinth <jens.korinth@...a.io>

Use new pr_warn_once macro to resolve TODO in error.rs.

Signed-off-by: Jens Korinth <jens.korinth@...a.io>
---
 rust/kernel/error.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/rust/kernel/error.rs b/rust/kernel/error.rs
index 52c5024324474fc1306047f3fd7516f0023d0313..f6813dace1128b7ef91f64e79cd83bb64995bf97 100644
--- a/rust/kernel/error.rs
+++ b/rust/kernel/error.rs
@@ -102,8 +102,7 @@ impl Error {
     /// be returned in such a case.
     pub fn from_errno(errno: crate::ffi::c_int) -> Error {
         if errno < -(bindings::MAX_ERRNO as i32) || errno >= 0 {
-            // TODO: Make it a `WARN_ONCE` once available.
-            crate::pr_warn!(
+            crate::pr_warn_once!(
                 "attempted to create `Error` with out of range `errno`: {}",
                 errno
             );

-- 
2.47.0