__pskb_copy
return __pskb_copy(skb, skb_headroom(skb), gfp_mask);
skb = __pskb_copy(skb_in, skb_headroom(skb_in) - HSR_HLEN, GFP_ATOMIC);
__pskb_copy(frame->skb_prp,
skb = __pskb_copy(frame->skb_std,
nskb = __pskb_copy(skb, MAX_TCP_HEADER, GFP_ATOMIC);
_skb = __pskb_copy(skb, hdr_len, GFP_ATOMIC);
_skb = __pskb_copy(skb, hlen, GFP_ATOMIC);