diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h
index 5675b1f09bc5..e081b56f1c1d 100644
--- a/include/linux/ceph/osdmap.h
+++ b/include/linux/ceph/osdmap.h
@@ -110,17 +110,16 @@ struct ceph_object_id {
 	int name_len;
 };
 
+#define __CEPH_OID_INITIALIZER(oid) { .name = (oid).inline_name }
+
+#define CEPH_DEFINE_OID_ONSTACK(oid)				\
+	struct ceph_object_id oid = __CEPH_OID_INITIALIZER(oid)
+
 static inline void ceph_oid_init(struct ceph_object_id *oid)
 {
-	oid->name = oid->inline_name;
-	oid->name_len = 0;
+	*oid = (struct ceph_object_id) __CEPH_OID_INITIALIZER(*oid);
 }
 
-#define CEPH_OID_INIT_ONSTACK(oid)					\
-    ({ ceph_oid_init(&oid); oid; })
-#define CEPH_DEFINE_OID_ONSTACK(oid)					\
-	struct ceph_object_id oid = CEPH_OID_INIT_ONSTACK(oid)
-
 static inline bool ceph_oid_empty(const struct ceph_object_id *oid)
 {
 	return oid->name == oid->inline_name && !oid->name_len;