Commit 71e89591 authored by Paul Cercueil's avatar Paul Cercueil Committed by Miquel Raynal
Browse files

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: a0ac778e ("mtd: rawnand: ingenic: Add support for the JZ4740")
Signed-off-by: default avatarPaul Cercueil <paul@crapouillou.net>
Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211016132228.40254-1-paul@crapouillou.net
parent fa55b7dc

drivers/mtd/nand/raw/davinci_nand.c

+0 −3
Original line number Diff line number Diff line
@@ -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)) {