359  * oob = | BBM | M | ECC_0 | ... | ECC_N |
366 static void raw_read(struct nand_chip *chip, u8 *buf, u8 *oob)  in raw_read()  argument
369 	u8 *oob_orig = oob;  in raw_read()
376 	if (oob)  in raw_read()
377 		oob += BBM_SIZE;  in raw_read()
379 	aux_read(chip, &oob, METADATA_SIZE, &pos);  in raw_read()
383 		aux_read(chip, &oob, ecc_size, &pos);  in raw_read()
390 	aux_read(chip, &oob, ecc_size, &pos);  in raw_read()
393 static void raw_write(struct nand_chip *chip, const u8 *buf, const u8 *oob)  in raw_write()  argument
396 	const u8 *oob_orig = oob;  in raw_write()
403 	if (oob)  in raw_write()
404 		oob += BBM_SIZE;  in raw_write()
406 	aux_write(chip, &oob, METADATA_SIZE, &pos);  in raw_write()
410 		aux_write(chip, &oob, ecc_size, &pos);  in raw_write()
417 	aux_write(chip, &oob, ecc_size, &pos);  in raw_write()