131 	int hdrlen, tot_len, err;  in seg6_do_srh_encap()  local
137 	err = skb_cow_head(skb, tot_len + skb->mac_len);  in seg6_do_srh_encap()
138 	if (unlikely(err))  in seg6_do_srh_encap()
139 		return err;  in seg6_do_srh_encap()
185 		err = seg6_push_hmac(net, &hdr->saddr, isrh);  in seg6_do_srh_encap()
186 		if (unlikely(err))  in seg6_do_srh_encap()
187 			return err;  in seg6_do_srh_encap()
204 	int hdrlen, err;  in seg6_do_srh_inline()  local
208 	err = skb_cow_head(skb, hdrlen + skb->mac_len);  in seg6_do_srh_inline()
209 	if (unlikely(err))  in seg6_do_srh_inline()
210 		return err;  in seg6_do_srh_inline()
239 		err = seg6_push_hmac(net, &hdr->saddr, isrh);  in seg6_do_srh_inline()
240 		if (unlikely(err))  in seg6_do_srh_inline()
241 			return err;  in seg6_do_srh_inline()
257 	int proto, err = 0;  in seg6_do_srh()  local
266 		err = seg6_do_srh_inline(skb, tinfo->srh);  in seg6_do_srh()
267 		if (err)  in seg6_do_srh()
268 			return err;  in seg6_do_srh()
271 		err = iptunnel_handle_offloads(skb, SKB_GSO_IPXIP6);  in seg6_do_srh()
272 		if (err)  in seg6_do_srh()
273 			return err;  in seg6_do_srh()
282 		err = seg6_do_srh_encap(skb, tinfo->srh, proto);  in seg6_do_srh()
283 		if (err)  in seg6_do_srh()
284 			return err;  in seg6_do_srh()
300 		err = seg6_do_srh_encap(skb, tinfo->srh, IPPROTO_ETHERNET);  in seg6_do_srh()
301 		if (err)  in seg6_do_srh()
302 			return err;  in seg6_do_srh()
318 	int err;  in seg6_input()  local
320 	err = seg6_do_srh(skb);  in seg6_input()
321 	if (unlikely(err)) {  in seg6_input()
323 		return err;  in seg6_input()
347 	err = skb_cow_head(skb, LL_RESERVED_SPACE(dst->dev));  in seg6_input()
348 	if (unlikely(err))  in seg6_input()
349 		return err;  in seg6_input()
359 	int err = -EINVAL;  in seg6_output()  local
361 	err = seg6_do_srh(skb);  in seg6_output()
362 	if (unlikely(err))  in seg6_output()
384 			err = dst->error;  in seg6_output()
397 	err = skb_cow_head(skb, LL_RESERVED_SPACE(dst->dev));  in seg6_output()
398 	if (unlikely(err))  in seg6_output()
404 	return err;  in seg6_output()
417 	int err;  in seg6_build_state()  local
422 	err = nla_parse_nested_deprecated(tb, SEG6_IPTUNNEL_MAX, nla,  in seg6_build_state()
425 	if (err < 0)  in seg6_build_state()
426 		return err;  in seg6_build_state()
466 	err = dst_cache_init(&slwt->cache, GFP_ATOMIC);  in seg6_build_state()
467 	if (err) {  in seg6_build_state()
469 		return err;  in seg6_build_state()