[Qemu-devel] [RFC v2 2/5] vmstate: add VMS_NONE

["Michael S. Tsirkin" <mst@redhat.com>]

The element with this flags value is skipped.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 include/migration/vmstate.h | 1 +
 vmstate.c                   | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
index e7e1705..3a1587e 100644
--- a/include/migration/vmstate.h
+++ b/include/migration/vmstate.h
@@ -88,6 +88,7 @@ struct VMStateInfo {
 };
 
 enum VMStateFlags {
+    VMS_NONE             = 0x000,
     VMS_SINGLE           = 0x001,
     VMS_POINTER          = 0x002,
     VMS_ARRAY            = 0x004,
diff --git a/vmstate.c b/vmstate.c
index 18b3732..fe53735 100644
--- a/vmstate.c
+++ b/vmstate.c
@@ -13,7 +13,9 @@ static int vmstate_n_elems(void *opaque, VMStateField *field)
 {
     int n_elems = 1;
 
-    if (field->flags & VMS_ARRAY) {
+    if (!(field->flags & ~VMS_NONE)) {
+        n_elems = 0;
+    } else if (field->flags & VMS_ARRAY) {
         n_elems = field->num;
     } else if (field->flags & VMS_VARRAY_INT32) {
         n_elems = *(int32_t *)(opaque+field->num_offset);
-- 
MST