From: FUJITA Tomonori <fujita.tomonori@gmail.com>
Date: Thu, 1 Jan 2026 03:49:22 +0000 (+0900)
Subject: rust: sync: atomic: Add atomic bool tests
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4bac28727a2b3f33e6375aeafdf31df67deff5d0;p=thirdparty%2Fkernel%2Flinux.git

rust: sync: atomic: Add atomic bool tests

Add tests for Atomic<bool> operations.

Atomic<bool> does not fit into the existing u8/16/32/64 tests so
introduce a dedicated test for it.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Link: https://patch.msgid.link/20260101034922.2020334-3-fujita.tomonori@gmail.com
---

diff --git a/rust/kernel/sync/atomic/predefine.rs b/rust/kernel/sync/atomic/predefine.rs
index 3fc99174b0869..42067c6a266cb 100644
--- a/rust/kernel/sync/atomic/predefine.rs
+++ b/rust/kernel/sync/atomic/predefine.rs
@@ -199,4 +199,20 @@ mod tests {
             assert_eq!(v + 25, x.load(Relaxed));
         });
     }
+
+    #[test]
+    fn atomic_bool_tests() {
+        let x = Atomic::new(false);
+
+        assert_eq!(false, x.load(Relaxed));
+        x.store(true, Relaxed);
+        assert_eq!(true, x.load(Relaxed));
+
+        assert_eq!(true, x.xchg(false, Relaxed));
+        assert_eq!(false, x.load(Relaxed));
+
+        assert_eq!(Err(false), x.cmpxchg(true, true, Relaxed));
+        assert_eq!(false, x.load(Relaxed));
+        assert_eq!(Ok(false), x.cmpxchg(false, true, Full));
+    }
 }