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authorPaul Cercueil <paul@crapouillou.net>2021-10-16 16:22:24 +0300
committerMiquel Raynal <miquel.raynal@bootlin.com>2021-11-19 21:43:00 +0300
commit71e89591502d737c10db2bd4d8fcfaa352552afb (patch)
tree8fc4fa759ff973457ebfe6995da7aa17f1df7b29 /drivers/mtd
parentfa55b7dcdc43c1aa1ba12bca9d2dd4318c2a0dbf (diff)
downloadlinux-71e89591502d737c10db2bd4d8fcfaa352552afb.tar.xz
mtd: rawnand: davinci: Don't calculate ECC when reading page
The function nand_davinci_read_page_hwecc_oob_first() does read the ECC data from the OOB area. Therefore it does not need to calculate the ECC as it is already available. Cc: <stable@vger.kernel.org> # v5.2 Fixes: a0ac778eb82c ("mtd: rawnand: ingenic: Add support for the JZ4740") Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20211016132228.40254-1-paul@crapouillou.net
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/raw/davinci_nand.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c
index 118da9944e3b..89de24d3bb7a 100644
--- a/drivers/mtd/nand/raw/davinci_nand.c
+++ b/drivers/mtd/nand/raw/davinci_nand.c
@@ -394,7 +394,6 @@ static int nand_davinci_read_page_hwecc_oob_first(struct nand_chip *chip,
int eccsteps = chip->ecc.steps;
uint8_t *p = buf;
uint8_t *ecc_code = chip->ecc.code_buf;
- uint8_t *ecc_calc = chip->ecc.calc_buf;
unsigned int max_bitflips = 0;
/* Read the OOB area first */
@@ -420,8 +419,6 @@ static int nand_davinci_read_page_hwecc_oob_first(struct nand_chip *chip,
if (ret)
return ret;
- chip->ecc.calculate(chip, p, &ecc_calc[i]);
-
stat = chip->ecc.correct(chip, p, &ecc_code[i], NULL);
if (stat == -EBADMSG &&
(chip->ecc.options & NAND_ECC_GENERIC_ERASED_CHECK)) {