netdev - [net 12/13] i40evf: remove open-coded skb_cow

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Message-Id: <1397224383-19269-13-git-send-email-jeffrey.t.kirsher@intel.com>
Date:	Fri, 11 Apr 2014 06:53:02 -0700
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	davem@...emloft.net
Cc:	Francois Romieu <romieu@...zoreil.com>, netdev@...r.kernel.org,
	gospo@...hat.com, sassmann@...hat.com,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net 12/13] i40evf: remove open-coded skb_cow_head

From: Francois Romieu <romieu@...zoreil.com>

Signed-off-by: Francois Romieu <romieu@...zoreil.com>
Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>
Tested-by: Sibai Li <sibai.li@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/i40evf/i40e_txrx.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40evf/i40e_txrx.c b/drivers/net/ethernet/intel/i40evf/i40e_txrx.c
index 53be5f4..b9f50f4 100644
--- 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);
-- 
1.9.0

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