[MTD] NAND Replace oobinfo by ecclayout
The nand_oobinfo structure is not fitting the newer error correction
demands anymore. Replace it by struct nand_ecclayout and fixup the users
all over the place. Keep the nand_oobinfo based ioctl for user space
compability reasons.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 608f7af..e75ec5f 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -512,14 +512,36 @@
break;
}
+ /* Legacy interface */
case MEMGETOOBSEL:
{
- if (copy_to_user(argp, mtd->oobinfo,
- sizeof(struct nand_oobinfo)))
+ struct nand_oobinfo oi;
+
+ if (!mtd->ecclayout)
+ return -EOPNOTSUPP;
+ if (mtd->ecclayout->eccbytes > ARRAY_SIZE(oi.eccpos))
+ return -EINVAL;
+
+ oi.useecc = MTD_NANDECC_AUTOPLACE;
+ memcpy(&oi.eccpos, mtd->ecclayout->eccpos, sizeof(oi.eccpos));
+ memcpy(&oi.oobfree, mtd->ecclayout->oobfree,
+ sizeof(oi.oobfree));
+
+ if (copy_to_user(argp, &oi, sizeof(struct nand_oobinfo)))
return -EFAULT;
break;
}
+ case ECCGETLAYOUT:
+
+ if (!mtd->ecclayout)
+ return -EOPNOTSUPP;
+
+ if (copy_to_user(argp, &mtd->ecclayout,
+ sizeof(struct nand_ecclayout)))
+ return -EFAULT;
+ break;
+
case MEMGETBADBLOCK:
{
loff_t offs;