TRACE_SEQ_BUFFER_SIZE
char buffer[TRACE_SEQ_BUFFER_SIZE];
seq_buf_init(&s->seq, s->buffer, TRACE_SEQ_BUFFER_SIZE);
(addr < (unsigned long)iter->tmp_seq.buffer + TRACE_SEQ_BUFFER_SIZE))
if (cnt >= TRACE_SEQ_BUFFER_SIZE)
cnt = TRACE_SEQ_BUFFER_SIZE - 1;