-+/**
-+ * nand_markbad_bbt - [NAND Interface] Mark a block bad in the BBT
-+ * @mtd: MTD device structure
-+ * @offs: offset of the bad block
-+ */
-+int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs)
-+{
-+ struct nand_chip *this = mtd->priv;
-+ int block, ret = 0;
-+
-+ block = (int)(offs >> this->bbt_erase_shift);
-+
-+ /* Mark bad block in memory */
-+ bbt_mark_entry(this, block, BBT_BLOCK_WORN);
-+
-+ /* Update flash-based bad block table */
-+ if (this->bbt_options & NAND_BBT_USE_FLASH)
-+ ret = nand_update_bbt(mtd, offs);
-+
-+ return ret;
-+}
-+