RXRPC_CONN_PROBING_FOR_UPGRADE
set_bit(RXRPC_CONN_PROBING_FOR_UPGRADE, &conn->flags);
if (test_and_clear_bit(RXRPC_CONN_PROBING_FOR_UPGRADE, &conn->flags)) {
if (!test_bit(RXRPC_CONN_PROBING_FOR_UPGRADE, &conn->flags))
if (test_bit(RXRPC_CONN_PROBING_FOR_UPGRADE, &conn->flags) &&