datapath: tunnel: Do not use inner ip-header-id for tunnel ip-header-id.

[cascardo/ovs.git] / datapath / linux / compat / include / net / ip.h

diff --git a/datapath/linux/compat/include/net/ip.h b/datapath/linux/compat/include/net/ip.h
index b18b968..1dccdea 100644 (file)
--- a/datapath/linux/compat/include/net/ip.h
+++ b/datapath/linux/compat/include/net/ip.h
@@ -11,4 +11,11 @@ extern int           ip_local_out(struct sk_buff *skb);
 
 #endif /* linux kernel < 2.6.25 */
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,1,0)
+static inline bool ip_is_fragment(const struct iphdr *iph)
+{
+       return (iph->frag_off & htons(IP_MF | IP_OFFSET)) != 0;
+}
+#endif
+
 #endif