skb_needs_linearize
if (skb_needs_linearize(skb, port->dev->features)) {
if (skb_needs_linearize(skb, features) &&
if (skb_needs_linearize(nskb, features) &&
if (skb_needs_linearize(skb, features) &&
if (skb_needs_linearize(skb, skb->dev->features) &&
if (skb_needs_linearize(skb, skb->dev->features) &&
if (skb_needs_linearize(skb, features) && __skb_linearize(skb))