[PATCH] fs/squashfs: Only use export table if available

[Tom Rini]

On Sun, Dec 25, 2022 at 11:05:24AM +0100, David Oberhollenzer wrote:

> For a squashfs filesystem, the fragment table is followed by
> the following tables: NFS export table, ID table, xattr table.
> 
> The export and xattr tables are both completely optional, but
> the ID table is mandatory. The Linux implementation refuses to
> mount the image if the ID table is missing. Tables that are no
> present have their location in the super block set
> to 0xFFFFFFFFFFFFFFFF.
> 
> The u-boot implementation previously assumed that it can always
> rely on the export table location as an upper bound for the fragment
> table, trying (and failing) to read past filesystem bounds if it
> is not present.
> 
> This patch changes the driver to use the ID table instead and only
> use the export table location if it lies between the two.
> 
> Signed-off-by: David Oberhollenzer <goliath at infraroot.at>
> Reviewed-by: Miquel Raynal <miquel.raynal at bootlin.com>

Applied to u-boot/master, thanks!

-- 
Tom
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