1 files changed, 10 insertions, 1 deletions

diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index cf5ea8cdcf8e..63dadc0dfb62 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -157,6 +157,15 @@ struct mtd_info {
         unsigned int erasesize_mask;
         unsigned int writesize_mask;
 
+        /*
+         * read ops return -EUCLEAN if max number of bitflips corrected on any
+         * one region comprising an ecc step equals or exceeds this value.
+         * Settable by driver, else defaults to ecc_strength.  User can override
+         * in sysfs.  N.B. The meaning of the -EUCLEAN return code has changed;
+         * see Documentation/ABI/testing/sysfs-class-mtd for more detail.
+         */
+        unsigned int bitflip_threshold;
+
         // Kernel-only stuff starts here.
         const char *name;
         int index;
@@ -164,7 +173,7 @@ struct mtd_info {
         /* ECC layout structure pointer - read only! */
         struct nand_ecclayout *ecclayout;
 
-        /* max number of correctible bit errors per writesize */
+        /* max number of correctible bit errors per ecc step */
         unsigned int ecc_strength;
 
         /* Data for variable erase regions. If numeraseregions is zero,