datapath: compat: introduce ovs_iptunnel_handle_offloads()

[cascardo/ovs.git] / datapath / linux / compat / gre.c

diff --git a/datapath/linux/compat/gre.c b/datapath/linux/compat/gre.c
index 1cd885b..02551fb 100644 (file)
--- a/datapath/linux/compat/gre.c
+++ b/datapath/linux/compat/gre.c
@@ -287,33 +287,15 @@ static void gre_csum_fix(struct sk_buff *skb)
 
 struct sk_buff *gre_handle_offloads(struct sk_buff *skb, bool gre_csum)
 {
-       int err;
-
-       skb_reset_inner_headers(skb);
+       gso_fix_segment_t fix_segment;
 
-       if (skb_is_gso(skb)) {
-               if (skb_is_encapsulated(skb)) {
-                       err = -ENOSYS;
-                       goto error;
-               }
+       if (gre_csum)
+               fix_segment = gre_csum_fix;
+       else
+               fix_segment = NULL;
 
-               if (gre_csum)
-                       OVS_GSO_CB(skb)->fix_segment = gre_csum_fix;
-               else
-                       OVS_GSO_CB(skb)->fix_segment = NULL;
-       } else {
-               if (skb->ip_summed == CHECKSUM_PARTIAL && gre_csum) {
-                       err = skb_checksum_help(skb);
-                       if (err)
-                               goto error;
-
-               } else if (skb->ip_summed != CHECKSUM_PARTIAL)
-                       skb->ip_summed = CHECKSUM_NONE;
-       }
-       return skb;
-error:
-       kfree_skb(skb);
-       return ERR_PTR(err);
+       skb_reset_inner_headers(skb);
+       return ovs_iptunnel_handle_offloads(skb, gre_csum, fix_segment);
 }
 
 static bool is_gre_gso(struct sk_buff *skb)