393  * oob = | BBM | M | ECC_0 | ... | ECC_N |
400 static void raw_read(struct nand_chip *chip, u8 *buf, u8 *oob)  in raw_read()  argument
403 	u8 *oob_orig = oob;  in raw_read()
410 	if (oob)  in raw_read()
411 		oob += BBM_SIZE;  in raw_read()
413 	aux_read(chip, &oob, METADATA_SIZE, &pos);  in raw_read()
417 		aux_read(chip, &oob, ecc_size, &pos);  in raw_read()
424 	aux_read(chip, &oob, ecc_size, &pos);  in raw_read()
427 static void raw_write(struct nand_chip *chip, const u8 *buf, const u8 *oob)  in raw_write()  argument
430 	const u8 *oob_orig = oob;  in raw_write()
437 	if (oob)  in raw_write()
438 		oob += BBM_SIZE;  in raw_write()
440 	aux_write(chip, &oob, METADATA_SIZE, &pos);  in raw_write()
444 		aux_write(chip, &oob, ecc_size, &pos);  in raw_write()
451 	aux_write(chip, &oob, ecc_size, &pos);  in raw_write()