1 files changed, 6 insertions, 2 deletions

diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index 9864a2dbadce..773083b7f1e9 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -135,7 +135,9 @@ struct sk_buff *tcp_gso_segment(struct sk_buff *skb,
                 th->fin = th->psh = 0;
                 th->check = newcheck;
 
-                if (skb->ip_summed != CHECKSUM_PARTIAL)
+                if (skb->ip_summed == CHECKSUM_PARTIAL)
+                        gso_reset_checksum(skb, ~th->check);
+                else
                         th->check = gso_make_checksum(skb, ~th->check);
 
                 seq += mss;
@@ -169,7 +171,9 @@ struct sk_buff *tcp_gso_segment(struct sk_buff *skb,
                       skb->data_len);
         th->check = ~csum_fold((__force __wsum)((__force u32)th->check +
                                 (__force u32)delta));
-        if (skb->ip_summed != CHECKSUM_PARTIAL)
+        if (skb->ip_summed == CHECKSUM_PARTIAL)
+                gso_reset_checksum(skb, ~th->check);
+        else
                 th->check = gso_make_checksum(skb, ~th->check);
 out:
         return segs;