vmstate: constify VMStateField

Because they are supposed to remain const.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181114132931.22624-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
index 2b501d0466..61bef3ef5c 100644
--- a/include/migration/vmstate.h
+++ b/include/migration/vmstate.h
@@ -40,8 +40,8 @@ typedef struct VMStateField VMStateField;
  */
 struct VMStateInfo {
     const char *name;
-    int (*get)(QEMUFile *f, void *pv, size_t size, VMStateField *field);
-    int (*put)(QEMUFile *f, void *pv, size_t size, VMStateField *field,
+    int (*get)(QEMUFile *f, void *pv, size_t size, const VMStateField *field);
+    int (*put)(QEMUFile *f, void *pv, size_t size, const VMStateField *field,
                QJSON *vmdesc);
 };
 
@@ -186,7 +186,7 @@ struct VMStateDescription {
     int (*post_load)(void *opaque, int version_id);
     int (*pre_save)(void *opaque);
     bool (*needed)(void *opaque);
-    VMStateField *fields;
+    const VMStateField *fields;
     const VMStateDescription **subsections;
 };