Re: [Qemu-devel] [PATCH] usb-ccid: remove needless migration state code

[Gerd Hoffmann]

On Thu, 2017-10-12 at 13:21 +0200, Marc-André Lureau wrote:
> This code appears to be unused since its introduction. It should be
> safe to remove from VMState.

Well, almost:

> @@ -1452,7 +1431,6 @@ static VMStateDescription ccid_vmstate = {
>          VMSTATE_STRUCT_ARRAY(pending_answers, USBCCIDState,
>                          PENDING_ANSWERS_NUM, 1, answer_vmstate,
> Answer),
>          VMSTATE_UINT32(pending_answers_num, USBCCIDState),
> -        VMSTATE_UINT8(migration_state, USBCCIDState),
>          VMSTATE_UINT32(state_vmstate, USBCCIDState),
>          VMSTATE_END_OF_LIST()
>      }

We have to keep this (or some placeholder) so the vmstate format
doesn't change.

cheers,
   Gerd