diff mbox series

[5.10,011/563] mtd: rawnand: davinci: Dont calculate ECC when reading page

Message ID 20220124184024.803953330@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH Jan. 24, 2022, 6:36 p.m. UTC 
From: Paul Cercueil <paul@crapouillou.net>

commit 71e89591502d737c10db2bd4d8fcfaa352552afb upstream.

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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/raw/davinci_nand.c |    3 ---
 1 file changed, 3 deletions(-)
diff mbox series

Patch

--- 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_
 	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_
 		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)) {