mtd: nand: sunxi: avoid retrieving data before ECC pass
The in-band data are copied twice: before ECC correction and after the
ECC engine has fixed all the fixable bitflips.
Drop the useless memcpy_fromio operation by passing a NULL pointer when
calling sunxi_nfc_read_buf().
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index 96f7370..8247118 100644
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c
@@ -586,7 +586,7 @@
if (*cur_off != data_off)
nand->cmdfunc(mtd, NAND_CMD_RNDOUT, data_off, -1);
- sunxi_nfc_read_buf(mtd, data, ecc->size);
+ sunxi_nfc_read_buf(mtd, NULL, ecc->size);
if (data_off + ecc->size != oob_off)
nand->cmdfunc(mtd, NAND_CMD_RNDOUT, oob_off, -1);