1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 37247901ebd2..1c19b2d55c2b 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1654,5 +1654,12 @@ static inline int skb_is_gso(const struct sk_buff *skb)
         return skb_shinfo(skb)->gso_size;
 }
 
+static inline void skb_forward_csum(struct sk_buff *skb)
+{
+        /* Unfortunately we don't support this one.  Any brave souls? */
+        if (skb->ip_summed == CHECKSUM_COMPLETE)
+                skb->ip_summed = CHECKSUM_NONE;
+}
+
 #endif  /* __KERNEL__ */
 #endif  /* _LINUX_SKBUFF_H */