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-rw-r--r--net/sctp/offload.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/net/sctp/offload.c b/net/sctp/offload.c
index 74847d613835..eb874e3c399a 100644
--- a/net/sctp/offload.c
+++ b/net/sctp/offload.c
@@ -27,7 +27,11 @@ static __le32 sctp_gso_make_checksum(struct sk_buff *skb)
{
skb->ip_summed = CHECKSUM_NONE;
skb->csum_not_inet = 0;
- gso_reset_checksum(skb, ~0);
+ /* csum and csum_start in GSO CB may be needed to do the UDP
+ * checksum when it's a UDP tunneling packet.
+ */
+ SKB_GSO_CB(skb)->csum = (__force __wsum)~0;
+ SKB_GSO_CB(skb)->csum_start = skb_headroom(skb) + skb->len;
return sctp_compute_cksum(skb, skb_transport_offset(skb));
}
@@ -64,7 +68,7 @@ static struct sk_buff *sctp_gso_segment(struct sk_buff *skb,
goto out;
}
- segs = skb_segment(skb, features | NETIF_F_HW_CSUM | NETIF_F_SG);
+ segs = skb_segment(skb, (features | NETIF_F_HW_CSUM) & ~NETIF_F_SG);
if (IS_ERR(segs))
goto out;