Re: [PATCH] Remove unnecessary minimum_version_id_old fields

[Juan Quintela <quintela@redhat.com>]

Peter Maydell <peter.maydell@linaro.org> wrote:
> The migration code will not look at a VMStateDescription's
> minimum_version_id_old field unless that VMSD has set the
> load_state_old field to something non-NULL.  (The purpose of
> minimum_version_id_old is to specify what migration version is needed
> for the code in the function pointed to by load_state_old to be able
> to handle it on incoming migration.)
>
> We have exactly one VMSD which still has a load_state_old,
> in the PPC CPU; every other VMSD which sets minimum_version_id_old
> is doing so unnecessarily. Delete all the unnecessary ones.
>
> Commit created with:
>   sed -i '/\.minimum_version_id_old/d' $(git grep -l '\.minimum_version_id_old')
> with the one legitimate use then hand-edited back in.
>
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

queued.