[PATCH] ubi: Reject MLC NAND

[Richard Weinberger]

Artem,

Am Donnerstag, 8. März 2018, 16:01:15 CET schrieb Artem Bityutskiy:
> On Thu, 2018-03-08 at 15:43 +0100, Richard Weinberger wrote:
> > As stated by David Woodhouse, it was a huge mistake by UBI to not
> > reject MLC
> > NAND from the very beginning.
> 
> Correction: when we were developing UBI/UBIFS and upstreamed them, MLC
> was widely used yet we did not really know about it. So there was
> nothing to reject yet.

You mean *not* widely used?
 
> The mistake is that we did not add the reject timely. When people
> started reporting MLC issues we were answering that UBI/UBIFS stack
> needs more work to make MLC safe to use, and we hoped someone would do
> the work.

True.
TBH Boris and I also thought that adding MLC support is not a that big deal...

Thanks,
//richard