482 		*seq_out = info->seq; /* also part of desc_read:C */  in desc_read()
1493 	u64 seq;  in prb_reserve()  local
1521 	seq = info->seq;  in prb_reserve()
1542 	if (seq == 0 && DESC_INDEX(desc_ring, id) != 0)  in prb_reserve()
1543 		info->seq = DESC_INDEX(desc_ring, id);  in prb_reserve()
1545 		info->seq = seq + DESCS_COUNT(desc_ring);  in prb_reserve()
1553 	if (info->seq > 0)  in prb_reserve()
1758 				   unsigned long id, u64 seq,  in desc_read_finalized_seq()  argument
1775 	    s != seq) {  in desc_read_finalized_seq()
1798 static int prb_read(struct printk_ringbuffer *rb, u64 seq,  in prb_read()  argument
1802 	struct printk_info *info = to_info(desc_ring, seq);  in prb_read()
1803 	struct prb_desc *rdesc = to_desc(desc_ring, seq);  in prb_read()
1813 	err = desc_read_finalized_seq(desc_ring, id, seq, &desc);  in prb_read()
1833 	return desc_read_finalized_seq(desc_ring, id, seq, &desc);  in prb_read()
1843 	u64 seq;  in prb_first_seq()  local
1848 		d_state = desc_read(desc_ring, id, &desc, &seq, NULL); /* LMM(prb_first_seq:B) */  in prb_first_seq()
1877 	return seq;  in prb_first_seq()
1887 static bool _prb_read_valid(struct printk_ringbuffer *rb, u64 *seq,  in _prb_read_valid()  argument
1893 	while ((err = prb_read(rb, *seq, r, line_count))) {  in _prb_read_valid()
1896 		if (*seq < tail_seq) {  in _prb_read_valid()
1901 			*seq = tail_seq;  in _prb_read_valid()
1905 			(*seq)++;  in _prb_read_valid()
1939 bool prb_read_valid(struct printk_ringbuffer *rb, u64 seq,  in prb_read_valid()  argument
1942 	return _prb_read_valid(rb, &seq, r, NULL);  in prb_read_valid()
1969 bool prb_read_valid_info(struct printk_ringbuffer *rb, u64 seq,  in prb_read_valid_info()  argument
1976 	return _prb_read_valid(rb, &seq, &r, line_count);  in prb_read_valid_info()
1996 	u64 seq = 0;  in prb_first_valid_seq()  local
1998 	if (!_prb_read_valid(rb, &seq, NULL, NULL))  in prb_first_valid_seq()
2001 	return seq;  in prb_first_valid_seq()
2024 	u64 seq;  in prb_next_seq()  local
2028 	d_state = desc_read(desc_ring, id, NULL, &seq, NULL);  in prb_next_seq()
2038 		if (seq != 0)  in prb_next_seq()
2039 			seq++;  in prb_next_seq()
2047 		seq = 0;  in prb_next_seq()
2054 	while (_prb_read_valid(rb, &seq, NULL, NULL))  in prb_next_seq()
2055 		seq++;  in prb_next_seq()
2057 	return seq;  in prb_next_seq()
2103 	infos[0].seq = -(u64)_DESCS_COUNT(descbits);  in prb_init()
2104 	infos[_DESCS_COUNT(descbits) - 1].seq = 0;  in prb_init()