+static const struct nla_policy patch_policy[OVS_PATCH_ATTR_MAX + 1] = {
+#ifdef HAVE_NLA_NUL_STRING
+ [OVS_PATCH_ATTR_PEER] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ - 1 },
+#endif
+};
+
+static int patch_set_config(struct vport *vport, const struct nlattr *options,
+ struct patch_config *patchconf)