From b3caf2ca6fc82cba0479fe3b46c3da95bbeaaec9 Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Wed, 2 Feb 2022 10:59:10 +0000
Subject: Add VMS_END marker

The migration VMSTATE_END_OF_LIST marker relies on a NULL field
to mark th eend of a list;  that's a bit delicate when the marker is
forgotten and the code hits a NULL by luck.

Use an explicit flag to mark the end as well.

See: https://lists.gnu.org/archive/html/qemu-devel/2022-01/msg03025.html

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
 src/vmstate.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/vmstate.h b/src/vmstate.h
index 94c6a4b..e3e2459 100644
--- a/src/vmstate.h
+++ b/src/vmstate.h
@@ -173,6 +173,9 @@ enum VMStateFlags {
      * VMStateField.struct_version_id to tell which version of the
      * structure we are referencing to use. */
     VMS_VSTRUCT = 0x8000,
+
+    /* Marker for end of list */
+    VMS_END = 0x10000
 };
 
 struct VMStateField {
@@ -386,6 +389,7 @@ extern const VMStateInfo slirp_vmstate_info_tmp;
 
 #define VMSTATE_END_OF_LIST() \
     {                         \
+        .flags = VMS_END,     \
     }
 
 #endif
-- 
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