diff --git a/sys/external/bsd/drm2/include/linux/atomic.h b/sys/external/bsd/drm2/include/linux/atomic.h
index 447f21196486..3fbd4b96a924 100644
--- a/sys/external/bsd/drm2/include/linux/atomic.h
+++ b/sys/external/bsd/drm2/include/linux/atomic.h
@@ -84,6 +84,12 @@ atomic_set(atomic_t *atomic, int value)
 	atomic->a_u.au_int = value;
 }
 
+static inline void
+atomic_set_release(atomic_t *atomic, int value)
+{
+	atomic_store_release(&atomic->a_u.au_int, value);
+}
+
 static inline void
 atomic_add(int addend, atomic_t *atomic)
 {