tunnels: Remove encapsulation offloads on decap.

[firefly-linux-kernel-4.4.55.git] / include / net / ip_tunnels.h

diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index af40bc586a1b6ae03ef751ce61276e58934e7406..86a7bdd61d1a90234dc84be0f48cf9fc680a4230 100644 (file)
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -283,6 +283,22 @@ struct metadata_dst *iptunnel_metadata_reply(struct metadata_dst *md,
 struct sk_buff *iptunnel_handle_offloads(struct sk_buff *skb, bool gre_csum,
                                         int gso_type_mask);
 
+static inline int iptunnel_pull_offloads(struct sk_buff *skb)
+{
+       if (skb_is_gso(skb)) {
+               int err;
+
+               err = skb_unclone(skb, GFP_ATOMIC);
+               if (unlikely(err))
+                       return err;
+               skb_shinfo(skb)->gso_type &= ~(NETIF_F_GSO_ENCAP_ALL >>
+                                              NETIF_F_GSO_SHIFT);
+       }
+
+       skb->encapsulation = 0;
+       return 0;
+}
+
 static inline void iptunnel_xmit_stats(int err,
                                       struct net_device_stats *err_stats,
                                       struct pcpu_sw_netstats __percpu *stats)