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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>
This commit is contained in:
Heiner Kallweit 2020-02-18 21:12:52 +01:00 committed by David S. Miller
parent 1eb2c576ef
commit 2344120dd7
1 changed files with 2 additions and 24 deletions
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26
drivers/net/usb/r8152.c
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@ -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) static inline void rtl_tx_vlan_tag(struct tx_desc *desc, struct sk_buff *skb)
{ {
if (skb_vlan_tag_present(skb)) { if (skb_vlan_tag_present(skb)) {
@ -2016,10 +1993,11 @@ static int r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc,
break; break;
case htons(ETH_P_IPV6): case htons(ETH_P_IPV6):
if (msdn_giant_send_check(skb)) { if (skb_cow_head(skb, 0)) {
ret = TX_CSUM_TSO; ret = TX_CSUM_TSO;
goto unavailable; goto unavailable;
} }
tcp_v6_gso_csum_prep(skb);
opts1 |= GTSENDV6; opts1 |= GTSENDV6;
break; break;