This device doesn't have fields to migrate. Be explicit
by using vmstate_qdev_no_state_to_migrate.

Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
 hw/misc/iotkit-sysinfo.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/misc/iotkit-sysinfo.c b/hw/misc/iotkit-sysinfo.c
index b2dcfc4376..8bb9a2ef8b 100644
--- a/hw/misc/iotkit-sysinfo.c
+++ b/hw/misc/iotkit-sysinfo.c
@@ -120,6 +120,7 @@ static void iotkit_sysinfo_class_init(ObjectClass *klass, 
void *data)
      * This device has no guest-modifiable state and so it
      * does not need a reset function or VMState.
      */
+    dc->vmsd = vmstate_qdev_no_state_to_migrate;
 
     device_class_set_props(dc, iotkit_sysinfo_props);
 }
-- 
2.21.3


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