[MTD] remove unused ecctype,eccsize fields from struct mtd_info

Remove unused and broken mtd->ecctype and mtd->eccsize fields
from struct mtd_info. Do not remove them from userspace API
data structures (don't want to breake userspace) but mark them
as obsolete by a comment. Any userspace program which uses them
should be half-broken anyway, so this is more about saving
data structure size.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 3013d0883b97..3731523ec11f 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -419,8 +419,9 @@ static int mtd_ioctl(struct inode *inode, struct file *file,
                 info.erasesize  = mtd->erasesize;
                 info.writesize  = mtd->writesize;
                 info.oobsize    = mtd->oobsize;
-                info.ecctype    = mtd->ecctype;
-                info.eccsize    = mtd->eccsize;
+                /* The below fields are obsolete */
+                info.ecctype    = -1;
+                info.eccsize    = 0;
                 if (copy_to_user(argp, &info, sizeof(struct mtd_info_user)))
                         return -EFAULT;
                 break;