[PATCH] distroboot: ubifs: Add support for specifying UBI header offset

[Tom Rini]

On Sun, Aug 07, 2022 at 09:04:22PM +0200, Pali Rohár wrote:

> Some UBI partitions may use non-standard UBI header offset. For attaching
> these UBI partitions it is required to pass second argument with offset to
> "ubi part" command.
> 
> Therefore extend distroboot to allow specifying additional optional 6th
> argument with UBI header offset. This offset is set in new distroboot
> variable ${bootubioff} which may be used by distroboot script to e.g.
> properly pass this value to linux kernel command line for proper mounting
> of rootfs by kernel. This variable is set to empty string (cleared) when
> UBI header offset is not specified into distroboot BOOT_TARGET_DEVICES
> macro.
> 
> Usage of helper macro BOOTENV_DEV_UBIFS_BOOTUBIOFF in this change is there
> as a type check. It ensures that in BOOT_TARGET_DEVICES macro was specified
> UBIFS func with either 5 or 6 arguments. If not then cpp throws compile
> error.
> 
> Signed-off-by: Pali Rohár <pali at kernel.org>
> Reviewed-by: Tom Rini <trini at konsulko.com>

Applied to u-boot/master, thanks!

-- 
Tom
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