openwrt/target/linux/mediatek/patches-5.15/121-hack-spi-nand-1b-bbm.patch
Michał Kępień fa4dc86e98
kernel: backport MEMREAD ioctl
MEMREAD is a new ioctl for MTD character devices that was first included
in Linux 6.1.  It allows userspace applications to use the Linux
kernel's OOB autoplacement mechanism while reading data from NAND
devices.  The Yafut tool needs this ioctl to do its job.

Signed-off-by: Michał Kępień <openwrt@kempniu.pl>
2023-04-18 13:53:03 +02:00

21 lines
645 B
Diff

--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -724,7 +724,7 @@ static int spinand_mtd_write(struct mtd_
static bool spinand_isbad(struct nand_device *nand, const struct nand_pos *pos)
{
struct spinand_device *spinand = nand_to_spinand(nand);
- u8 marker[2] = { };
+ u8 marker[1] = { };
struct nand_page_io_req req = {
.pos = *pos,
.ooblen = sizeof(marker),
@@ -735,7 +735,7 @@ static bool spinand_isbad(struct nand_de
spinand_select_target(spinand, pos->target);
spinand_read_page(spinand, &req);
- if (marker[0] != 0xff || marker[1] != 0xff)
+ if (marker[0] != 0xff)
return true;
return false;