struct dst_entry *dst) { }
static inline void dst_init_metrics(struct dst_entry *dst, const u32 *metrics,
bool read_only) { }
-#elif LINUX_VERSION_CODE < KERNEL_VERSION(4,3,0)
+#elif !defined(HAVE___SKB_DST_COPY)
static inline void __skb_dst_copy(struct sk_buff *nskb, unsigned long refdst)
{
nskb->_skb_refdst = refdst;