[PATCH 2/2] mtd: nand_bbt: Skip bad blocks when searching for the BBT in NAND

[Stefan Riedmüller]

Hi Sascha,

here is the link to the kernel patch.
Sorry, I forgot to put you in cc.

https://patchwork.ozlabs.org/project/linux-mtd/patch/20210325102337.481172-1-s.riedmueller@phytec.de/

Stefan

On Mon, 2021-03-22 at 06:59 +0100, sha at pengutronix.de wrote:
> On Wed, Mar 17, 2021 at 05:14:05PM +0000, Stefan Riedmüller wrote:
> > Hi Sascha,
> > 
> > On Wed, 2021-03-17 at 10:41 +0100, Sascha Hauer wrote:
> > > Hi Stefan,
> > > 
> > > On Tue, Mar 16, 2021 at 01:36:26PM +0100, Stefan Riedmueller wrote:
> > > > The blocks containing the bad block table can become bad as well. So
> > > > make sure to skip any blocks that are marked bad when searching for
> > > > the
> > > > bad block table.
> > > 
> > > The file is a more or less direct copy from the kernel. Does the problem
> > > exist in the kernel as well?
> > 
> > From my point of view I would say yes. I have just made a small test Issue
> > is
> > shown in the kernel as well. It is a very raw case where two BBT blocks
> > need
> > to be worn out but on the other hand this fix should not have that much of
> > an
> > impact.
> > 
> > I will send a similar patch to the kernel.
> 
> I'd like to delay this one until it is accepted in the kernel. I do not
> fully understand the consequences of this patch, but hopefully on the
> mtd list there is someone.
> 
> Sascha
>