103 					   struct ipv6_txoptions *opt)  in ipv6_update_options()  argument
106 		if (opt &&  in ipv6_update_options()
110 			icsk->icsk_ext_hdr_len = opt->opt_flen + opt->opt_nflen;  in ipv6_update_options()
114 	opt = xchg((__force struct ipv6_txoptions **)&inet6_sk(sk)->opt,  in ipv6_update_options()
115 		   opt);  in ipv6_update_options()
118 	return opt;  in ipv6_update_options()
174 			struct ipv6_txoptions *opt;  in do_ipv6_setsockopt()  local
235 			opt = xchg((__force struct ipv6_txoptions **)&np->opt,  in do_ipv6_setsockopt()
237 			if (opt) {  in do_ipv6_setsockopt()
238 				atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
239 				txopt_put(opt);  in do_ipv6_setsockopt()
392 		struct ipv6_txoptions *opt;  in do_ipv6_setsockopt()  local
410 		opt = rcu_dereference_protected(np->opt, sock_owned_by_user(sk));  in do_ipv6_setsockopt()
411 		opt = ipv6_renew_options(sk, opt, optname,  in do_ipv6_setsockopt()
414 		if (IS_ERR(opt)) {  in do_ipv6_setsockopt()
415 			retv = PTR_ERR(opt);  in do_ipv6_setsockopt()
421 		if (optname == IPV6_RTHDR && opt && opt->srcrt) {  in do_ipv6_setsockopt()
422 			struct ipv6_rt_hdr *rthdr = opt->srcrt;  in do_ipv6_setsockopt()
438 		opt = ipv6_update_options(sk, opt);  in do_ipv6_setsockopt()
440 		if (opt) {  in do_ipv6_setsockopt()
441 			atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
442 			txopt_put(opt);  in do_ipv6_setsockopt()
471 		struct ipv6_txoptions *opt = NULL;  in do_ipv6_setsockopt()  local
490 		opt = sock_kmalloc(sk, sizeof(*opt) + optlen, GFP_KERNEL);  in do_ipv6_setsockopt()
492 		if (!opt)  in do_ipv6_setsockopt()
495 		memset(opt, 0, sizeof(*opt));  in do_ipv6_setsockopt()
496 		atomic_set(&opt->refcnt, 1);  in do_ipv6_setsockopt()
497 		opt->tot_len = sizeof(*opt) + optlen;  in do_ipv6_setsockopt()
499 		if (copy_from_user(opt+1, optval, optlen))  in do_ipv6_setsockopt()
503 		msg.msg_control = (void *)(opt+1);  in do_ipv6_setsockopt()
505 		retv = ip6_datagram_send_ctl(net, sk, &msg, &fl6, opt, &junk,  in do_ipv6_setsockopt()
511 		opt = ipv6_update_options(sk, opt);  in do_ipv6_setsockopt()
513 		if (opt) {  in do_ipv6_setsockopt()
514 			atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
515 			txopt_put(opt);  in do_ipv6_setsockopt()
946 static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_getsockopt_sticky()  argument
951 	if (!opt)  in ipv6_getsockopt_sticky()
956 		hdr = opt->hopopt;  in ipv6_getsockopt_sticky()
959 		hdr = opt->dst0opt;  in ipv6_getsockopt_sticky()
962 		hdr = (struct ipv6_opt_hdr *)opt->srcrt;  in ipv6_getsockopt_sticky()
965 		hdr = opt->dst1opt;  in ipv6_getsockopt_sticky()
1123 		struct ipv6_txoptions *opt;  in do_ipv6_getsockopt()  local
1126 		opt = rcu_dereference_protected(np->opt, sock_owned_by_user(sk));  in do_ipv6_getsockopt()
1127 		len = ipv6_getsockopt_sticky(sk, opt, optname, optval, len);  in do_ipv6_getsockopt()