MPTCP_SUBFLOW_ATTR_TOKEN_REM
if (nla_put_u32(skb, MPTCP_SUBFLOW_ATTR_TOKEN_REM, sf->remote_token) ||
if (tb[MPTCP_SUBFLOW_ATTR_TOKEN_REM] &&
rta_getattr(__u32, tb[MPTCP_SUBFLOW_ATTR_TOKEN_REM]),