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39fba7835a
We can use skb_cow_head() to properly deal with clones, especially the ones coming from TCP stack that allow their head being modified. This avoids a copy. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: James Hughes <james.hughes@raspberrypi.org> Signed-off-by: David S. Miller <davem@davemloft.net>