r8152: use new helper tcp_v6_gso_csum_prep

Use new helper tcp_v6_gso_csum_prep in additional network drivers.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 78ddbaf..709578f 100644 (file)
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1948,29 +1948,6 @@ drop:
        }
 }
 
-/* msdn_giant_send_check()
- * According to the document of microsoft, the TCP Pseudo Header excludes the
- * packet length for IPv6 TCP large packets.
- */
-static int msdn_giant_send_check(struct sk_buff *skb)
-{
-       const struct ipv6hdr *ipv6h;
-       struct tcphdr *th;
-       int ret;
-
-       ret = skb_cow_head(skb, 0);
-       if (ret)
-               return ret;
-
-       ipv6h = ipv6_hdr(skb);
-       th = tcp_hdr(skb);
-
-       th->check = 0;
-       th->check = ~tcp_v6_check(0, &ipv6h->saddr, &ipv6h->daddr, 0);
-
-       return ret;
-}
-
 static inline void rtl_tx_vlan_tag(struct tx_desc *desc, struct sk_buff *skb)
 {
        if (skb_vlan_tag_present(skb)) {
@@ -2016,10 +1993,11 @@ static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc,
                        break;
 
                case htons(ETH_P_IPV6):
-                       if (msdn_giant_send_check(skb)) {
+                       if (skb_cow_head(skb, 0)) {
                                ret = TX_CSUM_TSO;
                                goto unavailable;
                        }
+                       tcp_v6_gso_csum_prep(skb);
                        opts1 |= GTSENDV6;
                        break;