drivers: net: use skb_headlen()
Eric Dumazet authored

replaces (skb->len - skb->data_len) occurrences by skb_headlen(skb)
Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
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