71 		struct gre_base_hdr *greh;  in gre_gso_segment()  local
91 		greh = (struct gre_base_hdr *)skb_transport_header(skb);  in gre_gso_segment()
92 		pcsum = (__sum16 *)(greh + 1);  in gre_gso_segment()
115 			skb->csum_offset = sizeof(*greh);  in gre_gso_segment()
127 	const struct gre_base_hdr *greh;  in gre_gro_receive()  local
140 	hlen = off + sizeof(*greh);  in gre_gro_receive()
141 	greh = skb_gro_header(skb, hlen, off);  in gre_gro_receive()
142 	if (unlikely(!greh))  in gre_gro_receive()
151 	if ((greh->flags & ~(GRE_KEY|GRE_CSUM)) != 0)  in gre_gro_receive()
159 	if ((greh->flags & GRE_CSUM) && NAPI_GRO_CB(skb)->is_fou)  in gre_gro_receive()
162 	type = greh->protocol;  in gre_gro_receive()
170 	if (greh->flags & GRE_KEY)  in gre_gro_receive()
173 	if (greh->flags & GRE_CSUM)  in gre_gro_receive()
178 		greh = skb_gro_header_slow(skb, hlen, off);  in gre_gro_receive()
179 		if (unlikely(!greh))  in gre_gro_receive()
184 	if ((greh->flags & GRE_CSUM) && !NAPI_GRO_CB(skb)->flush) {  in gre_gro_receive()
208 		if (greh2->flags != greh->flags ||  in gre_gro_receive()
209 		    greh2->protocol != greh->protocol) {  in gre_gro_receive()
213 		if (greh->flags & GRE_KEY) {  in gre_gro_receive()
215 			if (*(__be32 *)(greh2+1) != *(__be32 *)(greh+1)) {  in gre_gro_receive()
225 	skb_gro_postpull_rcsum(skb, greh, grehlen);  in gre_gro_receive()
238 	struct gre_base_hdr *greh = (struct gre_base_hdr *)(skb->data + nhoff);  in gre_gro_complete()  local
240 	unsigned int grehlen = sizeof(*greh);  in gre_gro_complete()
247 	type = greh->protocol;  in gre_gro_complete()
248 	if (greh->flags & GRE_KEY)  in gre_gro_complete()
251 	if (greh->flags & GRE_CSUM)  in gre_gro_complete()