[REGRESSION] [PATCH 1/1] mtd: mtdpart: Support MTD_SIZE_REMAINING with unallocated memory area

[Francesco Dolcini]

Hello Tom, Alexander

On Thu, Feb 20, 2025 at 03:58:07PM +0100, Alexander Stein wrote:
> If there is an unallocated memory area before the last, filling parting
> the size calculation for MTD_SIZE_REMAINING does not take this hole
> into account.
> Fix this by calculating the remaining size just based on total size
> and partition offset.
> 
> Signed-off-by: Alexander Stein <alexander.stein at ew.tq-group.com>

This change introduced a regression on colibri imx7 and imx6ull.

```
Booting from NAND...
Partition size must be a multiple of 2048
Could not parse device nand0
Failed parsing MTD partitions from mtdparts!
Partition ubi not found!
```

Reverting commit 1ca97ee90392 ("mtd: mtdpart: Support MTD_SIZE_REMAINING
with unallocated memory area") on top of current master fixes the issue.

Any suggestion? I have not looked at the code, I just did a git bisect.

Francesco