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-rw-r--r--include/linux/ip.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/ip.h b/include/linux/ip.h
index 492bc6513533..482b7b7c9f30 100644
--- a/include/linux/ip.h
+++ b/include/linux/ip.h
@@ -34,4 +34,9 @@ static inline struct iphdr *ipip_hdr(const struct sk_buff *skb)
{
return (struct iphdr *)skb_transport_header(skb);
}
+
+static inline unsigned int ip_transport_len(const struct sk_buff *skb)
+{
+ return ntohs(ip_hdr(skb)->tot_len) - skb_network_header_len(skb);
+}
#endif /* _LINUX_IP_H */