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()
326 	struct ipv6_txoptions *opt;  in ipv6_set_opt_hdr()  local
353 	opt = rcu_dereference_protected(np->opt, lockdep_sock_is_held(sk));  in ipv6_set_opt_hdr()
354 	opt = ipv6_renew_options(sk, opt, optname, new);  in ipv6_set_opt_hdr()
356 	if (IS_ERR(opt))  in ipv6_set_opt_hdr()
357 		return PTR_ERR(opt);  in ipv6_set_opt_hdr()
361 	if (optname == IPV6_RTHDR && opt && opt->srcrt) {  in ipv6_set_opt_hdr()
362 		struct ipv6_rt_hdr *rthdr = opt->srcrt;  in ipv6_set_opt_hdr()
373 				(struct ipv6_sr_hdr *)opt->srcrt;  in ipv6_set_opt_hdr()
385 	opt = ipv6_update_options(sk, opt);  in ipv6_set_opt_hdr()
387 	if (opt) {  in ipv6_set_opt_hdr()
388 		atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in ipv6_set_opt_hdr()
389 		txopt_put(opt);  in ipv6_set_opt_hdr()
687 		struct ipv6_txoptions *opt = NULL;  in do_ipv6_setsockopt()  local
706 		opt = sock_kmalloc(sk, sizeof(*opt) + optlen, GFP_KERNEL);  in do_ipv6_setsockopt()
708 		if (!opt)  in do_ipv6_setsockopt()
711 		memset(opt, 0, sizeof(*opt));  in do_ipv6_setsockopt()
712 		refcount_set(&opt->refcnt, 1);  in do_ipv6_setsockopt()
713 		opt->tot_len = sizeof(*opt) + optlen;  in do_ipv6_setsockopt()
715 		if (copy_from_sockptr(opt + 1, optval, optlen))  in do_ipv6_setsockopt()
720 		msg.msg_control = (void *)(opt+1);  in do_ipv6_setsockopt()
721 		ipc6.opt = opt;  in do_ipv6_setsockopt()
728 		opt = ipv6_update_options(sk, opt);  in do_ipv6_setsockopt()
730 		if (opt) {  in do_ipv6_setsockopt()
731 			atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
732 			txopt_put(opt);  in do_ipv6_setsockopt()
1023 static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_getsockopt_sticky()  argument
1028 	if (!opt)  in ipv6_getsockopt_sticky()
1033 		hdr = opt->hopopt;  in ipv6_getsockopt_sticky()
1036 		hdr = opt->dst0opt;  in ipv6_getsockopt_sticky()
1039 		hdr = (struct ipv6_opt_hdr *)opt->srcrt;  in ipv6_getsockopt_sticky()
1042 		hdr = opt->dst1opt;  in ipv6_getsockopt_sticky()
1260 		struct ipv6_txoptions *opt;  in do_ipv6_getsockopt()  local
1263 		opt = rcu_dereference_protected(np->opt,  in do_ipv6_getsockopt()
1265 		len = ipv6_getsockopt_sticky(sk, opt, optname, optval, len);  in do_ipv6_getsockopt()