diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index f9441b5..30089ad 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -39,9 +39,11 @@
 
 #define SKB_DATA_ALIGN(X)	(((X) + (SMP_CACHE_BYTES - 1)) & \
 				 ~(SMP_CACHE_BYTES - 1))
-#define SKB_MAX_ORDER(X, ORDER)	(((PAGE_SIZE << (ORDER)) - (X) - \
-				  sizeof(struct skb_shared_info)) & \
-				  ~(SMP_CACHE_BYTES - 1))
+#define SKB_WITH_OVERHEAD(X)	\
+	(((X) - sizeof(struct skb_shared_info)) & \
+	 ~(SMP_CACHE_BYTES - 1))
+#define SKB_MAX_ORDER(X, ORDER) \
+	SKB_WITH_OVERHEAD((PAGE_SIZE << (ORDER)) - (X))
 #define SKB_MAX_HEAD(X)		(SKB_MAX_ORDER((X), 0))
 #define SKB_MAX_ALLOC		(SKB_MAX_ORDER(0, 2))