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-rw-r--r--include/qapi/visitor.h13
1 files changed, 6 insertions, 7 deletions
diff --git a/include/qapi/visitor.h b/include/qapi/visitor.h
index 5e581dcf7e..8a2d5ccacc 100644
--- a/include/qapi/visitor.h
+++ b/include/qapi/visitor.h
@@ -19,13 +19,12 @@
#include "qapi/error.h"
#include <stdlib.h>
-typedef struct GenericList
-{
- union {
- void *value;
- uint64_t padding;
- };
+/* This struct is layout-compatible with all other *List structs
+ * created by the qapi generator. It is used as a typical
+ * singly-linked list. */
+typedef struct GenericList {
struct GenericList *next;
+ char padding[];
} GenericList;
void visit_start_struct(Visitor *v, const char *name, void **obj,
@@ -36,7 +35,7 @@ void visit_start_implicit_struct(Visitor *v, void **obj, size_t size,
void visit_end_implicit_struct(Visitor *v);
void visit_start_list(Visitor *v, const char *name, Error **errp);
-GenericList *visit_next_list(Visitor *v, GenericList **list);
+GenericList *visit_next_list(Visitor *v, GenericList **list, size_t size);
void visit_end_list(Visitor *v);
/**