linux/drivers/mtd/devices
Michał Kępień 7bea605692 mtd: add ECC error accounting for each read request
Extend struct mtd_req_stats with two new fields holding the number of
corrected bitflips and uncorrectable errors detected during a read
operation.  This is a prerequisite for ultimately passing those counters
to user space, where they can be useful to applications for making
better-informed choices about moving data around.

Unlike 'max_bitflips' (which is set - in a common code path - to the
return value of a function called while the MTD device's mutex is held),
these counters have to be maintained in each MTD driver which defines
the '_read_oob' callback because the statistics need to be calculated
while the MTD device's mutex is held.

Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220629125737.14418-4-kernel@kempniu.pl
2022-09-21 10:38:09 +02:00
..
bcm47xxsflash.c remove ioremap_nocache and devm_ioremap_nocache 2020-01-06 09:45:59 +01:00
bcm47xxsflash.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
block2mtd.c mtd: move from strlcpy with unused retval to strscpy 2022-09-19 18:14:53 +02:00
docg3.c mtd: add ECC error accounting for each read request 2022-09-21 10:38:09 +02:00
docg3.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
Kconfig mtd: devices: add support for microchip 48l640 EERAM 2021-06-11 20:43:12 +02:00
lart.c mtd: Avoid comma separated statements 2020-08-27 14:16:31 +02:00
Makefile mtd: devices: add support for microchip 48l640 EERAM 2021-06-11 20:43:12 +02:00
mchp23k256.c Core MTD changes: 2022-03-25 13:35:34 -07:00
mchp48l640.c Core MTD changes: 2022-03-25 13:35:34 -07:00
ms02-nv.c mtd: devices: Remove superfluous "break" 2021-05-26 10:58:26 +02:00
ms02-nv.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mtd_dataflash.c mtd: dataflash: Add SPI ID table 2022-06-24 20:47:38 +02:00
mtdram.c mtd: mtdram: Expose module parameters 2019-01-08 12:42:57 +01:00
phram.c mtd: phram: Allow cached mappings 2022-05-16 18:37:48 +02:00
pmc551.c mtd: pmc551: Remove set but not used variable 'soff_lo' 2019-09-15 23:51:07 +02:00
powernv_flash.c mtd: powernv_flash: Warn about failure to unregister mtd device 2022-06-09 15:06:15 +02:00
serial_flash_cmds.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 420 2019-06-05 17:37:15 +02:00
slram.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
spear_smi.c mtd: spear_smi: Drop if with an always false condition 2022-06-09 15:06:19 +02:00
sst25l.c spi: make remove callback a void function 2022-02-09 13:00:45 +00:00
st_spi_fsm.c mtd: st_spi_fsm: Simplify error checking in .probe() a bit 2022-06-09 15:06:38 +02:00