RPC_PIPE_WAIT_FOR_OPEN
cn->cn_pipe = rpc_mkpipe_data(&cld_upcall_ops, RPC_PIPE_WAIT_FOR_OPEN);
p->pipe = rpc_mkpipe_data(upcall_ops, RPC_PIPE_WAIT_FOR_OPEN);
} else if (pipe->flags & RPC_PIPE_WAIT_FOR_OPEN) {