[PATCH] nand: brcmnand: fix OOB R/W with Hamming ECC
miquel.raynal at bootlin.com
Wed Feb 24 02:38:05 EST 2021
Álvaro Fernández Rojas <noltari at gmail.com> wrote on Wed, 24 Feb 2021
> Hi Florian,
> > El 24 feb 2021, a las 4:46, Florian Fainelli <f.fainelli at gmail.com> escribió:
> > On 2/22/2021 12:16 PM, Álvaro Fernández Rojas wrote:
> >> Hamming ECC doesn't cover the OOB data, so reading or writing OOB shall
> >> always be done without ECC enabled.
> >> This is a problem when adding JFFS2 cleanmarkers to erased blocks. If JFFS2
> >> clenmarkers are added to the OOB with ECC enabled, OOB bytes will be changed
> >> from ff ff ff to 00 00 00, reporting incorrect ECC errors.
> >> Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
> > Should there be a Fixes: tag provided here for back porting to stable trees?
> I think so, but the fixed commit would be the first one, right?
Yep, shouldn't be a problem.
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