15 struct seqbuf {  struct
21 static void seqbuf_init(struct seqbuf *seqbuf, void *buf, size_t size)  in seqbuf_init()  argument
23 	seqbuf->buf = buf;  in seqbuf_init()
24 	seqbuf->size = size;  in seqbuf_init()
25 	seqbuf->pos = 0;  in seqbuf_init()
28 static size_t seqbuf_avail(struct seqbuf *seqbuf)  in seqbuf_avail()  argument
30 	return seqbuf->pos < seqbuf->size ? seqbuf->size - seqbuf->pos : 0;  in seqbuf_avail()
33 static size_t seqbuf_status(struct seqbuf *seqbuf)  in seqbuf_status()  argument
35 	return seqbuf->pos <= seqbuf->size ? 0 : -EOVERFLOW;  in seqbuf_status()
38 static int seqbuf_eof(struct seqbuf *seqbuf)  in seqbuf_eof()  argument
40 	return seqbuf->pos >= seqbuf->size;  in seqbuf_eof()
43 static int seqbuf_read(struct seqbuf *seqbuf, void *buf, size_t nbyte)  in seqbuf_read()  argument
45 	nbyte = min(nbyte, seqbuf_avail(seqbuf));  in seqbuf_read()
46 	memcpy(buf, seqbuf->buf + seqbuf->pos, nbyte);  in seqbuf_read()
47 	seqbuf->pos += nbyte;  in seqbuf_read()
48 	return seqbuf_status(seqbuf);  in seqbuf_read()
51 static int seqbuf_read_u32(struct seqbuf *seqbuf, uint32_t *v)  in seqbuf_read_u32()  argument
55 	err = seqbuf_read(seqbuf, v, 4);  in seqbuf_read_u32()
60 static int seqbuf_read_str(struct seqbuf *seqbuf, const char **str)  in seqbuf_read_str()  argument
62 	*str = seqbuf->buf + seqbuf->pos;  in seqbuf_read_str()
63 	seqbuf->pos += strnlen(*str, seqbuf_avail(seqbuf));  in seqbuf_read_str()
64 	seqbuf->pos++;  in seqbuf_read_str()
65 	return seqbuf_status(seqbuf);  in seqbuf_read_str()
68 static void seqbuf_seek(struct seqbuf *seqbuf, ssize_t offset)  in seqbuf_seek()  argument
70 	seqbuf->pos += offset;  in seqbuf_seek()
382 	struct seqbuf seqbuf;  in bpmp_populate_debugfs_inband()  local
404 	seqbuf_init(&seqbuf, buf, dsize);  in bpmp_populate_debugfs_inband()
406 	while (!seqbuf_eof(&seqbuf)) {  in bpmp_populate_debugfs_inband()
407 		err = seqbuf_read_u32(&seqbuf, &attrs);  in bpmp_populate_debugfs_inband()
411 		err = seqbuf_read_str(&seqbuf, &name);  in bpmp_populate_debugfs_inband()
661 static int bpmp_populate_dir(struct tegra_bpmp *bpmp, struct seqbuf *seqbuf,  in bpmp_populate_dir()  argument
669 	while (!seqbuf_eof(seqbuf)) {  in bpmp_populate_dir()
670 		err = seqbuf_read_u32(seqbuf, &d);  in bpmp_populate_dir()
675 			seqbuf_seek(seqbuf, -4);  in bpmp_populate_dir()
683 		err = seqbuf_read_u32(seqbuf, &t);  in bpmp_populate_dir()
686 		err = seqbuf_read_str(seqbuf, &name);  in bpmp_populate_dir()
694 			err = bpmp_populate_dir(bpmp, seqbuf, dentry, depth+1);  in bpmp_populate_dir()
715 	struct seqbuf seqbuf;  in bpmp_populate_debugfs_shmem()  local
735 	seqbuf_init(&seqbuf, virt, nbytes);  in bpmp_populate_debugfs_shmem()
736 	err = bpmp_populate_dir(bpmp, &seqbuf, bpmp->debugfs_mirror, 0);  in bpmp_populate_debugfs_shmem()