diff options
| -rw-r--r-- | drivers/mtd/mtdcore.c | 5 | ||||
| -rw-r--r-- | include/linux/mtd/mtd.h | 5 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index a9b8be9f40dc..8393319b7782 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -1624,6 +1624,9 @@ int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) if (!master->_read_oob && (!master->_read || ops->oobbuf)) return -EOPNOTSUPP; + if (ops->stats) + memset(ops->stats, 0, sizeof(*ops->stats)); + if (mtd->flags & MTD_SLC_ON_MLC_EMULATION) ret_code = mtd_io_emulated_slc(mtd, from, true, ops); else @@ -1641,6 +1644,8 @@ int mtd_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops) return ret_code; if (mtd->ecc_strength == 0) return 0; /* device lacks ecc */ + if (ops->stats) + ops->stats->max_bitflips = ret_code; return ret_code >= mtd->bitflip_threshold ? -EUCLEAN : 0; } EXPORT_SYMBOL_GPL(mtd_read_oob); diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 955aee14b0f7..fccad1766458 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -40,6 +40,10 @@ struct mtd_erase_region_info { unsigned long *lockmap; /* If keeping bitmap of locks */ }; +struct mtd_req_stats { + unsigned int max_bitflips; +}; + /** * struct mtd_oob_ops - oob operation operands * @mode: operation mode @@ -70,6 +74,7 @@ struct mtd_oob_ops { uint32_t ooboffs; uint8_t *datbuf; uint8_t *oobbuf; + struct mtd_req_stats *stats; }; /** |