346 	uint16_t seq_zero = tx->seq_auth & TRANS_SEQ_ZERO_MASK;  in seg_tx_buf_build()  local
350 	net_buf_simple_add_u8(buf, (tx->aszmic << 7) | seq_zero >> 6);  in seg_tx_buf_build()
351 	net_buf_simple_add_u8(buf, (((seq_zero & 0x3f) << 2) | (seg_o >> 3)));  in seg_tx_buf_build()
816 static struct seg_tx *seg_tx_lookup(uint16_t seq_zero, uint8_t obo, uint16_t addr)  in seg_tx_lookup()  argument
824 		if ((tx->seq_auth & TRANS_SEQ_ZERO_MASK) != seq_zero) {  in seg_tx_lookup()
853 	uint16_t seq_zero;  in trans_ack()  local
861 	seq_zero = net_buf_simple_pull_be16(buf);  in trans_ack()
862 	obo = seq_zero >> 15;  in trans_ack()
863 	seq_zero = (seq_zero >> 2) & TRANS_SEQ_ZERO_MASK;  in trans_ack()
868 		*seq_auth = SEQ_AUTH(BT_MESH_NET_IVI_RX(rx), seq_zero);  in trans_ack()
876 	LOG_DBG("OBO %u seq_zero 0x%04x ack 0x%08x", obo, seq_zero, ack);  in trans_ack()
878 	tx = seg_tx_lookup(seq_zero, obo, rx->ctx.addr);  in trans_ack()
1118 	uint16_t seq_zero = *seq_auth & TRANS_SEQ_ZERO_MASK;  in send_ack()  local
1121 	LOG_DBG("SeqZero 0x%04x Block 0x%08x OBO %u", seq_zero, block, obo);  in send_ack()
1136 	sys_put_be16(((seq_zero << 2) & 0x7ffc) | (obo << 15), buf);  in send_ack()
1341 	uint16_t seq_zero;  in trans_seg()  local
1362 	seq_zero = net_buf_simple_pull_be16(buf);  in trans_seg()
1363 	seg_o = (seq_zero & 0x03) << 3;  in trans_seg()
1364 	seq_zero = (seq_zero >> 2) & TRANS_SEQ_ZERO_MASK;  in trans_seg()
1369 	LOG_DBG("SeqZero 0x%04x SegO %u SegN %u", seq_zero, seg_o, seg_n);  in trans_seg()
1391 			      ((((net_rx->seq & BIT_MASK(14)) - seq_zero)) &  in trans_seg()