netdevice.h: Use frag list abstraction interfaces.

Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/linux/netdevice.h

@@ -1904,7 +1904,7 @@ static inline int net_gso_ok(int features, int gso_type)
 static inline int skb_gso_ok(struct sk_buff *skb, int features)
 {
 	return net_gso_ok(features, skb_shinfo(skb)->gso_type) &&
-	       (!skb_shinfo(skb)->frag_list || (features & NETIF_F_FRAGLIST));
+	       (!skb_has_frags(skb) || (features & NETIF_F_FRAGLIST));
 }
 
 static inline int netif_needs_gso(struct net_device *dev, struct sk_buff *skb)