mptsas: Fix a migration compatible issue

My previous commit 2e2aa316 removed internal flag msi_in_use, which
exists in vmstate, use VMSTATE_UNUSED for migration compatibility.

Reported-by: Amit Shah <amit.shah@redhat.com>
Suggested-by: Amit Shah <amit.shah@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>

diff --git a/hw/scsi/mptsas.c b/hw/scsi/mptsas.c
index 1ae32fb..bebe513 100644 (file)
--- a/hw/scsi/mptsas.c
+++ b/hw/scsi/mptsas.c
@@ -1370,7 +1370,7 @@ static const VMStateDescription vmstate_mptsas = {
     .post_load = mptsas_post_load,
     .fields      = (VMStateField[]) {
         VMSTATE_PCI_DEVICE(dev, MPTSASState),
-
+        VMSTATE_UNUSED(sizeof(bool)), /* Was msi_in_use */
         VMSTATE_UINT32(state, MPTSASState),
         VMSTATE_UINT8(who_init, MPTSASState),
         VMSTATE_UINT8(doorbell_state, MPTSASState),