1301 static int skb_zerocopy_clone(struct sk_buff *nskb, struct sk_buff *orig,  in skb_zerocopy_clone()  argument
1305 		if (skb_zcopy(nskb)) {  in skb_zerocopy_clone()
1311 			if (skb_uarg(nskb) == skb_uarg(orig))  in skb_zerocopy_clone()
1313 			if (skb_copy_ubufs(nskb, GFP_ATOMIC))  in skb_zerocopy_clone()
1316 		skb_zcopy_set(nskb, skb_uarg(orig), NULL);  in skb_zerocopy_clone()
3645 	struct sk_buff *nskb;  in skb_segment_list()  local
3652 		nskb = list_skb;  in skb_segment_list()
3656 			skb->next = nskb;  in skb_segment_list()
3658 			tail->next = nskb;  in skb_segment_list()
3660 		tail = nskb;  in skb_segment_list()
3662 		delta_len += nskb->len;  in skb_segment_list()
3663 		delta_truesize += nskb->truesize;  in skb_segment_list()
3665 		skb_push(nskb, -skb_network_offset(nskb) + offset);  in skb_segment_list()
3667 		skb_release_head_state(nskb);  in skb_segment_list()
3668 		 __copy_skb_header(nskb, skb);  in skb_segment_list()
3670 		skb_headers_offset_update(nskb, skb_headroom(nskb) - skb_headroom(skb));  in skb_segment_list()
3672 						 nskb->data - tnl_hlen,  in skb_segment_list()
3675 		if (skb_needs_linearize(nskb, features) &&  in skb_segment_list()
3676 		    __skb_linearize(nskb))  in skb_segment_list()
3832 		struct sk_buff *nskb;  in skb_segment()  local
3873 			nskb = skb_clone(list_skb, GFP_ATOMIC);  in skb_segment()
3876 			if (unlikely(!nskb))  in skb_segment()
3879 			if (unlikely(pskb_trim(nskb, len))) {  in skb_segment()
3880 				kfree_skb(nskb);  in skb_segment()
3884 			hsize = skb_end_offset(nskb);  in skb_segment()
3885 			if (skb_cow_head(nskb, doffset + headroom)) {  in skb_segment()
3886 				kfree_skb(nskb);  in skb_segment()
3890 			nskb->truesize += skb_end_offset(nskb) - hsize;  in skb_segment()
3891 			skb_release_head_state(nskb);  in skb_segment()
3892 			__skb_push(nskb, doffset);  in skb_segment()
3894 			nskb = __alloc_skb(hsize + doffset + headroom,  in skb_segment()
3898 			if (unlikely(!nskb))  in skb_segment()
3901 			skb_reserve(nskb, headroom);  in skb_segment()
3902 			__skb_put(nskb, doffset);  in skb_segment()
3906 			tail->next = nskb;  in skb_segment()
3908 			segs = nskb;  in skb_segment()
3909 		tail = nskb;  in skb_segment()
3911 		__copy_skb_header(nskb, head_skb);  in skb_segment()
3913 		skb_headers_offset_update(nskb, skb_headroom(nskb) - headroom);  in skb_segment()
3914 		skb_reset_mac_len(nskb);  in skb_segment()
3917 						 nskb->data - tnl_hlen,  in skb_segment()
3920 		if (nskb->len == len + doffset)  in skb_segment()
3925 				if (!nskb->remcsum_offload)  in skb_segment()
3926 					nskb->ip_summed = CHECKSUM_NONE;  in skb_segment()
3927 				SKB_GSO_CB(nskb)->csum =  in skb_segment()
3929 							       skb_put(nskb,  in skb_segment()
3932 				SKB_GSO_CB(nskb)->csum_start =  in skb_segment()
3933 					skb_headroom(nskb) + doffset;  in skb_segment()
3936 					      skb_put(nskb, len),  in skb_segment()
3942 		nskb_frag = skb_shinfo(nskb)->frags;  in skb_segment()
3945 						 skb_put(nskb, hsize), hsize);  in skb_segment()
3947 		skb_shinfo(nskb)->tx_flags |= skb_shinfo(head_skb)->tx_flags &  in skb_segment()
3951 		    skb_zerocopy_clone(nskb, frag_skb, GFP_ATOMIC))  in skb_segment()
3970 				    skb_zerocopy_clone(nskb, frag_skb,  in skb_segment()
3977 			if (unlikely(skb_shinfo(nskb)->nr_frags >=  in skb_segment()
3995 			skb_shinfo(nskb)->nr_frags++;  in skb_segment()
4010 		nskb->data_len = len - hsize;  in skb_segment()
4011 		nskb->len += nskb->data_len;  in skb_segment()
4012 		nskb->truesize += nskb->data_len;  in skb_segment()
4016 			if (skb_has_shared_frag(nskb) &&  in skb_segment()
4017 			    __skb_linearize(nskb))  in skb_segment()
4020 			if (!nskb->remcsum_offload)  in skb_segment()
4021 				nskb->ip_summed = CHECKSUM_NONE;  in skb_segment()
4022 			SKB_GSO_CB(nskb)->csum =  in skb_segment()
4023 				skb_checksum(nskb, doffset,  in skb_segment()
4024 					     nskb->len - doffset, 0);  in skb_segment()
4025 			SKB_GSO_CB(nskb)->csum_start =  in skb_segment()
4026 				skb_headroom(nskb) + doffset;  in skb_segment()