mtd: rawnand: ndfc: Fix external use of SW Hamming ECC helper

Since the Hamming software ECC engine has been updated to become a
proper and independent ECC engine, it is now mandatory to either
initialize the engine before using any one of his functions or use one
of the bare helpers which only perform the calculations. As there is no
actual need for a proper ECC initialization, let's just use the bare
helper instead of the rawnand one.

Fixes: 90ccf0a0192f ("mtd: nand: ecc-hamming: Rename the exported functions")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210413161840.345208-5-miquel.raynal@bootlin.com

diff --git a/drivers/mtd/nand/raw/ndfc.c b/drivers/mtd/nand/raw/ndfc.c
index 338d6b1a189eb69d112f069f1763554d97fbf239..98d5a94c3a24238b43cd0c60b73a6c59f2084503 100644 (file)
--- a/drivers/mtd/nand/raw/ndfc.c
+++ b/drivers/mtd/nand/raw/ndfc.c
@@ -22,6 +22,7 @@
 #include <linux/mtd/ndfc.h>
 #include <linux/slab.h>
 #include <linux/mtd/mtd.h>
+#include <linux/mtd/nand-ecc-sw-hamming.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <asm/io.h>
@@ -100,6 +101,15 @@ static int ndfc_calculate_ecc(struct nand_chip *chip,
        return 0;
 }
 
+static int ndfc_correct_ecc(struct nand_chip *chip,
+                           unsigned char *buf,
+                           unsigned char *read_ecc,
+                           unsigned char *calc_ecc)
+{
+       return ecc_sw_hamming_correct(buf, read_ecc, calc_ecc,
+                                     chip->ecc.size, false);
+}
+
 /*
  * Speedups for buffer read/write/verify
  *
@@ -145,7 +155,7 @@ static int ndfc_chip_init(struct ndfc_controller *ndfc,
        chip->controller = &ndfc->ndfc_control;
        chip->legacy.read_buf = ndfc_read_buf;
        chip->legacy.write_buf = ndfc_write_buf;
-       chip->ecc.correct = rawnand_sw_hamming_correct;
+       chip->ecc.correct = ndfc_correct_ecc;
        chip->ecc.hwctl = ndfc_enable_hwecc;
        chip->ecc.calculate = ndfc_calculate_ecc;
        chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST;