[U-Boot] [PATCH v2 8/9] ubispl: add support for loading volumes by name

[Heiko Schocher <hs@denx.de>]

Hello Markus,

Am 15.05.2019 um 15:15 schrieb Markus Klotzbuecher:
> From: Hamish Guthrie <hamish.guthrie@kistler.com>
> 
> The motivation is to use the UBI atomic volume rename functionality to
> allow double copy software updates on UBI. To that end the SPL is
> configured to always load the same volume name (e.g. "u-boot"),
> whereas a software updater always installs into the secondary volume
> "u-boot_r". After successful installation, these two volume names are
> switched.
> 
> This extension is protected by #ifdefs as it will somewhat slow down
> loading of volumes by id. This is because the code needs to disable
> the optimization of ignoring all volume ids which are not
> to-be-loaded, since these can only be resolved after attaching.
> 
> This adds two vtbl related functions from Linux, which are taken from
> the same kernel version as the current main U-Boot UBI code (Linux 4.2
> 64291f7db5bd8).
> 
> Signed-off-by: Hamish Guthrie <hamish.guthrie@kistler.com>
> Signed-off-by: Markus Klotzbuecher <markus.klotzbuecher@kistler.com>
> Reviewed-by: Heiko Schocher <hs@denx.de>
> Cc: Kyungmin Park <kmpark@infradead.org>
> ---
> Changes for v2:
> - indicate version of Kernel from which code was copied
> 
>   common/spl/Kconfig          |  13 +++
>   common/spl/spl_ubi.c        |   7 ++
>   drivers/mtd/ubispl/ubispl.c | 215 +++++++++++++++++++++++++++++++++++-
>   drivers/mtd/ubispl/ubispl.h |   7 ++
>   include/ubispl.h            |   6 +
>   5 files changed, 246 insertions(+), 2 deletions(-)

Thanks!

Travis buils is fine, pushed to u-boot-ubi.git next

bye,
Heiko
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