mtd: nand: add ->badblockbits for minimum number of set bits in bad block byte

This can be used to protect against bitflips in that field, but now mostly
for smartmedia.

Signed-off-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 48bc2c54302c..f2d4a1ac14b8 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -401,6 +401,7 @@ struct nand_chip {
         int             subpagesize;
         uint8_t         cellinfo;
         int             badblockpos;
+        int             badblockbits;
 
         flstate_t       state;