qlge: remove open-coded skb_cow_head.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Cc: Shahed Shaikh <shahed.shaikh@qlogic.com>
Cc: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index adf87d2..5b63405 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -2556,11 +2556,10 @@
 
 	if (skb_is_gso(skb)) {
 		int err;
-		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;
 
 		mac_iocb_ptr->opcode = OPCODE_OB_MAC_TSO_IOCB;
 		mac_iocb_ptr->flags3 |= OB_MAC_TSO_IOCB_IC;