98 	int noff;  in tcf_nat()  local
116 	noff = skb_network_offset(skb);  in tcf_nat()
117 	if (!pskb_may_pull(skb, sizeof(*iph) + noff))  in tcf_nat()
129 		    !skb_clone_writable(skb, sizeof(*iph) + noff) &&  in tcf_nat()
157 		if (!pskb_may_pull(skb, ihl + sizeof(*tcph) + noff) ||  in tcf_nat()
159 		     !skb_clone_writable(skb, ihl + sizeof(*tcph) + noff) &&  in tcf_nat()
171 		if (!pskb_may_pull(skb, ihl + sizeof(*udph) + noff) ||  in tcf_nat()
173 		     !skb_clone_writable(skb, ihl + sizeof(*udph) + noff) &&  in tcf_nat()
190 		if (!pskb_may_pull(skb, ihl + sizeof(*icmph) + noff))  in tcf_nat()
201 					noff))  in tcf_nat()
216 					     sizeof(*iph) + noff) &&  in tcf_nat()