[PATCH v4 3/3] rust: error: Replace pr_warn by pr_warn_once

[Jens Korinth via B4 Relay]

From: Jens Korinth <jens.korinth@xxxxxxx>

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

Signed-off-by: Jens Korinth <jens.korinth@xxxxxxx>
---
 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