3650 struct sk_buff *skb_segment(struct sk_buff *head_skb,  in skb_segment()  argument
3655 	struct sk_buff *list_skb = skb_shinfo(head_skb)->frag_list;  in skb_segment()
3656 	skb_frag_t *frag = skb_shinfo(head_skb)->frags;  in skb_segment()
3657 	unsigned int mss = skb_shinfo(head_skb)->gso_size;  in skb_segment()
3658 	unsigned int doffset = head_skb->data - skb_mac_header(head_skb);  in skb_segment()
3659 	struct sk_buff *frag_skb = head_skb;  in skb_segment()
3661 	unsigned int tnl_hlen = skb_tnl_header_len(head_skb);  in skb_segment()
3664 	unsigned int len = head_skb->len;  in skb_segment()
3667 	int nfrags = skb_shinfo(head_skb)->nr_frags;  in skb_segment()
3674 	    (skb_shinfo(head_skb)->gso_type & SKB_GSO_DODGY)) {  in skb_segment()
3688 		if (mss != GSO_BY_FRAGS && mss != skb_headlen(head_skb))  in skb_segment()
3692 	__skb_push(head_skb, doffset);  in skb_segment()
3693 	proto = skb_network_protocol(head_skb, &dummy);  in skb_segment()
3706 			    !net_gso_ok(features, skb_shinfo(head_skb)->gso_type))  in skb_segment()
3718 			skb_walk_frags(head_skb, iter) {  in skb_segment()
3743 	headroom = skb_headroom(head_skb);  in skb_segment()
3744 	pos = skb_headlen(head_skb);  in skb_segment()
3755 			len = head_skb->len - offset;  in skb_segment()
3760 		hsize = skb_headlen(head_skb) - offset;  in skb_segment()
3810 					   GFP_ATOMIC, skb_alloc_rx_flag(head_skb),  in skb_segment()
3826 		__copy_skb_header(nskb, head_skb);  in skb_segment()
3831 		skb_copy_from_linear_data_offset(head_skb, -tnl_hlen,  in skb_segment()
3842 				skb_copy_and_csum_bits(head_skb, offset,  in skb_segment()
3852 		skb_copy_from_linear_data_offset(head_skb, offset,  in skb_segment()
3855 		skb_shinfo(nskb)->tx_flags |= skb_shinfo(head_skb)->tx_flags &  in skb_segment()
3936 	} while ((offset += len) < head_skb->len);  in skb_segment()
3946 		int type = skb_shinfo(head_skb)->gso_type;  in skb_segment()
3947 		unsigned short gso_size = skb_shinfo(head_skb)->gso_size;  in skb_segment()
3973 	if (head_skb->destructor == sock_wfree) {  in skb_segment()
3974 		swap(tail->truesize, head_skb->truesize);  in skb_segment()
3975 		swap(tail->destructor, head_skb->destructor);  in skb_segment()
3976 		swap(tail->sk, head_skb->sk);  in skb_segment()