datapath: Always initialize fix_segment for GSO packet.

OVS tunnel compat code depends on this function pointer to
handle GSO packet. Currently we do not initialize for all
GRE GSO packets. Following patch fixes that.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>

diff --git a/datapath/linux/compat/gre.c b/datapath/linux/compat/gre.c
index 07b270a..8c133de 100644 (file)
--- a/datapath/linux/compat/gre.c
+++ b/datapath/linux/compat/gre.c
@@ -292,6 +292,8 @@ struct sk_buff *gre_handle_offloads(struct sk_buff *skb, bool gre_csum)
        if (skb_is_gso(skb)) {
                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);