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mtd: nand: rename create_bbt()'s 'len' variable to 'numpages'

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Rename 'len' variable of create_bbt/scan_block_fast/scan_block_full to
'numpages', since it really means number of pages to scan when
searching for the BBM (and not the byte length of the scan).

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Reviewed-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Shmulik Ladkani 2012-08-20 16:29:15 +03:00 committed by David Woodhouse
parent 19da4158d3
commit eceb84b188
1 changed files with 12 additions and 12 deletions
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24
drivers/mtd/nand/nand_bbt.c
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@ -401,7 +401,7 @@ static void read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
/* Scan a given block full */ /* Scan a given block full */
static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd, static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd,
loff_t offs, uint8_t *buf, size_t readlen, loff_t offs, uint8_t *buf, size_t readlen,
int scanlen, int len) int scanlen, int numpages)
{ {
int ret, j; int ret, j;
@ -410,7 +410,7 @@ static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd,
if (ret && !mtd_is_bitflip_or_eccerr(ret)) if (ret && !mtd_is_bitflip_or_eccerr(ret))
return ret; return ret;
for (j = 0; j < len; j++, buf += scanlen) { for (j = 0; j < numpages; j++, buf += scanlen) {
if (check_pattern(buf, scanlen, mtd->writesize, bd)) if (check_pattern(buf, scanlen, mtd->writesize, bd))
return 1; return 1;
} }
@ -419,7 +419,7 @@ static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd,
/* Scan a given block partially */ /* Scan a given block partially */
static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd, static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
loff_t offs, uint8_t *buf, int len) loff_t offs, uint8_t *buf, int numpages)
{ {
struct mtd_oob_ops ops; struct mtd_oob_ops ops;
int j, ret; int j, ret;
@ -430,7 +430,7 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
ops.datbuf = NULL; ops.datbuf = NULL;
ops.mode = MTD_OPS_PLACE_OOB; ops.mode = MTD_OPS_PLACE_OOB;
for (j = 0; j < len; j++) { for (j = 0; j < numpages; j++) {
/* /*
* Read the full oob until read_oob is fixed to handle single * Read the full oob until read_oob is fixed to handle single
* byte reads for 16 bit buswidth. * byte reads for 16 bit buswidth.
@ -463,7 +463,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
struct nand_bbt_descr *bd, int chip) struct nand_bbt_descr *bd, int chip)
{ {
struct nand_chip *this = mtd->priv; struct nand_chip *this = mtd->priv;
int i, numblocks, len, scanlen; int i, numblocks, numpages, scanlen;
int startblock; int startblock;
loff_t from; loff_t from;
size_t readlen; size_t readlen;
@ -471,11 +471,11 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
pr_info("Scanning device for bad blocks\n"); pr_info("Scanning device for bad blocks\n");
if (bd->options & NAND_BBT_SCANALLPAGES) if (bd->options & NAND_BBT_SCANALLPAGES)
len = 1 << (this->bbt_erase_shift - this->page_shift); numpages = 1 << (this->bbt_erase_shift - this->page_shift);
else if (bd->options & NAND_BBT_SCAN2NDPAGE) else if (bd->options & NAND_BBT_SCAN2NDPAGE)
len = 2; numpages = 2;
else else
len = 1; numpages = 1;
if (!(bd->options & NAND_BBT_SCANEMPTY)) { if (!(bd->options & NAND_BBT_SCANEMPTY)) {
/* We need only read few bytes from the OOB area */ /* We need only read few bytes from the OOB area */
@ -484,7 +484,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
} else { } else {
/* Full page content should be read */ /* Full page content should be read */
scanlen = mtd->writesize + mtd->oobsize; scanlen = mtd->writesize + mtd->oobsize;
readlen = len * mtd->writesize; readlen = numpages * mtd->writesize;
} }
if (chip == -1) { if (chip == -1) {
@ -508,7 +508,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
} }
if (this->bbt_options & NAND_BBT_SCANLASTPAGE) if (this->bbt_options & NAND_BBT_SCANLASTPAGE)
from += mtd->erasesize - (mtd->writesize * len); from += mtd->erasesize - (mtd->writesize * numpages);
for (i = startblock; i < numblocks;) { for (i = startblock; i < numblocks;) {
int ret; int ret;
@ -517,9 +517,9 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
if (bd->options & NAND_BBT_SCANALLPAGES) if (bd->options & NAND_BBT_SCANALLPAGES)
ret = scan_block_full(mtd, bd, from, buf, readlen, ret = scan_block_full(mtd, bd, from, buf, readlen,
scanlen, len); scanlen, numpages);
else else
ret = scan_block_fast(mtd, bd, from, buf, len); ret = scan_block_fast(mtd, bd, from, buf, numpages);
if (ret < 0) if (ret < 0)
return ret; return ret;