[PATCH v2] mtd: parsers: bcm47xxpart: Fix halfblock reads

[Miquel Raynal]

On Tue, 2022-10-18 at 09:11:29 UTC, Linus Walleij wrote:
> There is some code in the parser that tries to read 0x8000
> bytes into a block to "read in the middle" of the block. Well
> that only works if the block is also 0x10000 bytes all the time,
> else we get these parse errors as we reach the end of the flash:
> 
> spi-nor spi0.0: mx25l1606e (2048 Kbytes)
> mtd_read error while parsing (offset: 0x200000): -22
> mtd_read error while parsing (offset: 0x201000): -22
> (...)
> 
> Fix the code to do what I think was intended.
> 
> Cc: stable at vger.kernel.org
> Fixes: f0501e81fbaa ("mtd: bcm47xxpart: alternative MAGIC for board_data partition")
> Cc: Rafał Miłecki <zajec5 at gmail.com>
> Cc: Florian Fainelli <f.fainelli at gmail.com>
> Signed-off-by: Linus Walleij <linus.walleij at linaro.org>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/fixes, thanks.

Miquel