ubifs_scan
sleb = ubifs_scan(c, UBIFS_SB_LNUM, UBIFS_SB_NODE_SZ, c->sbuf, 0);
sleb = ubifs_scan(c, lnum, 0, buf, 0);
sleb = ubifs_scan(c, lnum, 0, c->sbuf, 0);
sleb = ubifs_scan(c, lnum, 0, c->sbuf, 0);
sleb = ubifs_scan(c, lnum, 0, buf, 0);
sleb = ubifs_scan(c, lnum, 0, c->sbuf, 1);
sleb = ubifs_scan(c, lnum, 0, c->sbuf, 1);
sleb = ubifs_scan(c, lnum, 0, c->sbuf, 1);
sleb = ubifs_scan(c, lnum, 0, buf, 0);
sleb = ubifs_scan(c, next_lnum, 0, sbuf, 0);
sleb = ubifs_scan(c, lnum, offs, c->sbuf, 0);
sleb = ubifs_scan(c, lnum, offs, sbuf, c->need_recovery);
sleb = ubifs_scan(c, lnum, 0, c->ileb_buf, 0);
struct ubifs_scan_leb *ubifs_scan(const struct ubifs_info *c, int lnum,