smb_rq_new
error = smb_rq_new(rqp, t2p->t_name ?
error = smb_rq_new(rqp, SMB_COM_NT_TRANSACT_SECONDARY);
error = smb_rq_new(rqp, cmd);
static int smb_rq_new(struct smb_rq *rqp, uchar_t cmd);