Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf

[kernel/kernel-generic.git] / include / linux / skbuff.h

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index d40d40b..5e1e6f2 100644 (file)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2919,5 +2919,22 @@ static inline bool skb_head_is_locked(const struct sk_buff *skb)
 {
        return !skb->head_frag || skb_cloned(skb);
 }
+
+/**
+ * skb_gso_network_seglen - Return length of individual segments of a gso packet
+ *
+ * @skb: GSO skb
+ *
+ * skb_gso_network_seglen is used to determine the real size of the
+ * individual segments, including Layer3 (IP, IPv6) and L4 headers (TCP/UDP).
+ *
+ * The MAC/L2 header is not accounted for.
+ */
+static inline unsigned int skb_gso_network_seglen(const struct sk_buff *skb)
+{
+       unsigned int hdr_len = skb_transport_header(skb) -
+                              skb_network_header(skb);
+       return hdr_len + skb_gso_transport_seglen(skb);
+}
 #endif /* __KERNEL__ */
 #endif /* _LINUX_SKBUFF_H */