[PATCH v2 3/3] mtd: nand: omap2: Support for hardware BCH error correction
Artem Bityutskiy
artem.bityutskiy at linux.intel.com
Fri Nov 30 07:28:00 EST 2012
On Wed, 2012-10-31 at 12:38 +0530, Philip, Avinash wrote:
> +static int erased_sector_bitflips(u_char *data, u_char *oob,
> + struct omap_nand_info *info)
> +{
> + int flip_bits = 0, i;
> +
> + for (i = 0; i < info->nand.ecc.size; i++) {
> + flip_bits += hweight8(~data[i]);
> + if (flip_bits > info->nand.ecc.strength)
> + return 0;
> + }
> +
> + for (i = 0; i < info->nand.ecc.bytes - 1; i++) {
> + flip_bits += hweight8(~oob[i]);
> + if (flip_bits > info->nand.ecc.strength)
> + return 0;
> + }
Why do you need the second for loop?
--
Best Regards,
Artem Bityutskiy
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