drivers: net: use skb_headlen()
replaces (skb->len - skb->data_len) occurrences by skb_headlen(skb) Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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replaces (skb->len - skb->data_len) occurrences by skb_headlen(skb) Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>