linux/drivers/mtd
Brian Norris a7e68834fc mtd: nand: use ECC, if present, when scanning OOB
scan_read_raw_oob() is used in only in places where the MTD_OPS_PLACE_OOB mode
is preferable to MTD_OPS_RAW mode, so use MTD_OPS_PLACE_OOB instead.
MTD_OPS_PLACE_OOB provides the same functionality with the potential[1] added
bonus of error correction.

This brings scan_block_full() in line with scan_block_fast() so that they
both read bad block markers with MTD_OPS_PLACE_OOB. This can help in
preventing 0xff markers (in good blocks) from being interpreted as bad
block indicators in the presence of a single bitflip.

Note that ECC error codes (EUCLEAN or EBADMSG) are already silently
ignored in all users of scan_read_raw_oob().

[1] Few  drivers perform proper error correction on OOB data. In those
    cases, the use of MTD_OPS_RAW vs. MTD_OPS_PLACE_OOB is not
    significant.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-09-29 14:51:55 +01:00
..
chips mtd: cfi_cmdset_0002: Micron M29EW bugfixes as per TN-13-07 2012-07-16 21:37:15 +01:00
devices mtd: m25p80: Fix the Spansion chip detection 2012-09-29 14:50:22 +01:00
lpddr mtd: lpddr: replace open-coded ARRAY_SIZE with macro 2012-05-13 22:47:31 -05:00
maps Linux 3.6-rc2 2012-08-22 12:55:43 +01:00
nand mtd: nand: use ECC, if present, when scanning OOB 2012-09-29 14:51:55 +01:00
onenand mtd: driver _read() returns max_bitflips; mtd_read() returns -EUCLEAN 2012-05-13 23:14:23 -05:00
tests mtd: tests: use random32 instead of home-brewed generator 2012-07-06 18:17:04 +01:00
ubi UBI: harmonize the update of ubi->beb_rsvd_pebs 2012-07-18 14:30:34 +03:00
Kconfig mtd: of_parts: fix breakage in Kconfig 2012-06-01 20:06:59 +01:00
Makefile mtd: maps: bcm963xx-flash: make CFE partition parsing an mtd parser 2012-01-09 18:15:31 +00:00
afs.c mtd: introduce mtd_read interface 2012-01-09 18:25:19 +00:00
ar7part.c mtd: introduce mtd_read interface 2012-01-09 18:25:19 +00:00
bcm63xxpart.c mtd: bcm63xxpart: handle Broadcom partition order 2012-05-13 22:55:03 -05:00
cmdlinepart.c mtd: cmdlinepart: fix commentary 2012-05-13 23:03:36 -05:00
ftl.c mtd: do not use mtd->sync directly 2012-01-09 18:26:21 +00:00
inftlcore.c mtd: add leading underscore to all mtd functions 2012-03-27 00:20:01 +01:00
inftlmount.c mtd: introduce mtd_block_markbad interface 2012-01-09 18:25:48 +00:00
mtd_blkdevs.c mtd: mtdblock: call mtd_sync() only if opened for write 2012-03-27 00:11:11 +01:00
mtdblock.c mtd: mtdblock: call mtd_sync() only if opened for write 2012-03-27 00:11:11 +01:00
mtdblock_ro.c mtd: introduce mtd_write interface 2012-01-09 18:25:20 +00:00
mtdchar.c mtd: fix oops in dataflash driver 2012-05-07 20:29:50 +01:00
mtdconcat.c mtd: unify initialization of erase_info->fail_addr 2012-03-27 01:02:24 +01:00
mtdcore.c mtd: check for max_bitflips in mtd_read_oob() 2012-09-29 14:50:50 +01:00
mtdcore.h mtd: hide parse_mtd_partitions 2011-09-11 15:02:13 +03:00
mtdoops.c Linux 3.6-rc2 2012-08-22 12:55:43 +01:00
mtdpart.c mtd: driver _read() returns max_bitflips; mtd_read() returns -EUCLEAN 2012-05-13 23:14:23 -05:00
mtdsuper.c VFS: Pass mount flags to sget() 2012-07-14 16:38:34 +04:00
mtdswap.c mtd: do not use mtd->block_markbad directly 2012-01-09 18:26:26 +00:00
nftlcore.c mtd: nftlcore: remove out-of-date and now irrelevant piece of code 2012-03-27 00:24:03 +01:00
nftlmount.c mtd: introduce mtd_block_markbad interface 2012-01-09 18:25:48 +00:00
ofpart.c mtd: ofpart: add ofoldpart alias 2011-09-11 15:02:14 +03:00
redboot.c mtd: redboot: remove useless code 2012-03-27 00:24:14 +01:00
rfd_ftl.c mtd: do not use mtd->sync directly 2012-01-09 18:26:21 +00:00
sm_ftl.c mtd: sm_ftl: fix typo in major number. 2012-03-27 01:01:26 +01:00
sm_ftl.h
ssfdc.c mtd: introduce mtd_block_isbad interface 2012-01-09 18:25:47 +00:00