[PATCH 4.9 27/96] sr9700: use skb_cow_head() to deal with cloned skbs

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Eric Dumazet commit d532c1082f68176363ed766d09bf187616e282fe upstream. We need to ensure there is enough headroom to push extra header, but we also need to check if we are

[PATCH 4.9 27/96] sr9700: use skb_cow_head() to deal with cloned skbs

4.9-stable review patch. If anyone has any objections, please let me know. -- From: Eric Dumazet commit d532c1082f68176363ed766d09bf187616e282fe upstream. We need to ensure there is enough headroom to push extra header, but we also need to check if we are allowed to change