1 files changed, 3 insertions, 2 deletions

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 63b5a8b6dfbd..609868f3db42 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -448,8 +448,9 @@ struct nand_buffers {
  *                      will be copied to the appropriate nand_bbt_descr's.
  * @badblockpos:        [INTERN] position of the bad block marker in the oob
  *                      area.
- * @badblockbits:       [INTERN] number of bits to left-shift the bad block
- *                      number
+ * @badblockbits:       [INTERN] minimum number of set bits in a good block's
+ *                      bad block marker position; i.e., BBM == 11110111b is
+ *                      not bad when badblockbits == 7
  * @cellinfo:           [INTERN] MLC/multichip data from chip ident
  * @numchips:           [INTERN] number of physical chips
  * @chipsize:           [INTERN] the size of one chip for multichip arrays