+#define KDBUS_ITEM_NEXT(item) \
+ (typeof(item))(((uint8_t *)item) + ALIGN8((item)->size))
+
+#define KDBUS_ITEM_FOREACH(part, head, first) \
+ for (part = (head)->first; \
+ (uint8_t *)(part) < (uint8_t *)(head) + (head)->size; \
+ part = KDBUS_ITEM_NEXT(part))
+
+#define KDBUS_ITEM_HEADER_SIZE offsetof(struct kdbus_item, data)
+#define KDBUS_ITEM_SIZE(s) ALIGN8((s) + KDBUS_ITEM_HEADER_SIZE)
+