SN_EQUAL
if (SN_EQUAL(seq_num, preorder_ctrl->indicate_seq)) {
else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num))
if (SN_EQUAL(preorder_ctrl->indicate_seq, pattrib->seq_num))
} else if (SN_EQUAL(pattrib->seqnum, tx_seq)) {