389 			  struct nand_bbt_descr *td, struct nand_bbt_descr *md)  in read_abs_bbts()  argument
403 	if (md && (md->options & NAND_BBT_VERSION)) {  in read_abs_bbts()
404 		scan_read(mtd, buf, (loff_t)md->pages[0] << this->page_shift,  in read_abs_bbts()
405 			      mtd->writesize, md);  in read_abs_bbts()
406 		md->version[0] = buf[bbt_get_ver_offs(mtd, md)];  in read_abs_bbts()
408 			 md->pages[0], md->version[0]);  in read_abs_bbts()
597 			     struct nand_bbt_descr *md)  in search_read_bbts()  argument
603 	if (md)  in search_read_bbts()
604 		search_bbt(mtd, buf, md);  in search_read_bbts()
618 		     struct nand_bbt_descr *td, struct nand_bbt_descr *md,  in write_bbt()  argument
689 			if (!md || md->pages[chip] != page)  in write_bbt()
843 	struct nand_bbt_descr *md = this->bbt_md;  in check_create()  local
861 		if (md) {  in check_create()
862 			if (td->pages[i] == -1 && md->pages[i] == -1) {  in check_create()
866 				rd = md;  in check_create()
868 			} else if (md->pages[i] == -1) {  in check_create()
871 			} else if (td->version[i] == md->version[i]) {  in check_create()
874 					rd2 = md;  in check_create()
875 			} else if (((int8_t)(td->version[i] - md->version[i])) > 0) {  in check_create()
879 				rd = md;  in check_create()
901 			if (md)  in check_create()
902 				md->version[i] = 1;  in check_create()
933 		if (md) {  in check_create()
934 			td->version[i] = max(td->version[i], md->version[i]);  in check_create()
935 			md->version[i] = td->version[i];  in check_create()
940 			res = write_bbt(mtd, buf, td, md, chipsel);  in check_create()
946 		if ((writeops & 0x02) && md && (md->options & NAND_BBT_WRITE)) {  in check_create()
947 			res = write_bbt(mtd, buf, md, td, chipsel);  in check_create()
1081 	struct nand_bbt_descr *md = this->bbt_md;  in nand_scan_bbt()  local
1104 	verify_bbt_descr(mtd, md);  in nand_scan_bbt()
1117 		read_abs_bbts(mtd, buf, td, md);  in nand_scan_bbt()
1120 		search_read_bbts(mtd, buf, td, md);  in nand_scan_bbt()
1129 	if (md)  in nand_scan_bbt()
1130 		mark_bbt_region(mtd, md);  in nand_scan_bbt()
1155 	struct nand_bbt_descr *md = this->bbt_md;  in nand_update_bbt()  local
1177 	if (md)  in nand_update_bbt()
1178 		md->version[chip]++;  in nand_update_bbt()
1182 		res = write_bbt(mtd, buf, td, md, chipsel);  in nand_update_bbt()
1187 	if (md && (md->options & NAND_BBT_WRITE)) {  in nand_update_bbt()
1188 		res = write_bbt(mtd, buf, md, td, chipsel);  in nand_update_bbt()