i40evf: remove open-coded skb_cow_head

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 53be5f4..b9f50f4 100644 (file)
--- a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
@@ -1114,20 +1114,18 @@ static int i40e_tso(struct i40e_ring *tx_ring, struct sk_buff *skb,
                    u64 *cd_type_cmd_tso_mss, u32 *cd_tunneling)
 {
        u32 cd_cmd, cd_tso_len, cd_mss;
+       struct ipv6hdr *ipv6h;
        struct tcphdr *tcph;
        struct iphdr *iph;
        u32 l4len;
        int err;
-       struct ipv6hdr *ipv6h;
 
        if (!skb_is_gso(skb))
                return 0;
 
-       if (skb_header_cloned(skb)) {
-               err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
-               if (err)
-                       return err;
-       }
+       err = skb_cow_head(skb, 0);
+       if (err < 0)
+               return err;
 
        if (protocol == htons(ETH_P_IP)) {
                iph = skb->encapsulation ? inner_ip_hdr(skb) : ip_hdr(skb);