101 					   struct ipv6_txoptions *opt)  in ipv6_update_options()  argument
104 		if (opt &&  in ipv6_update_options()
108 			icsk->icsk_ext_hdr_len = opt->opt_flen + opt->opt_nflen;  in ipv6_update_options()
112 	opt = xchg((__force struct ipv6_txoptions **)&inet6_sk(sk)->opt,  in ipv6_update_options()
113 		   opt);  in ipv6_update_options()
116 	return opt;  in ipv6_update_options()
324 	struct ipv6_txoptions *opt;  in ipv6_set_opt_hdr()  local
351 	opt = rcu_dereference_protected(np->opt, lockdep_sock_is_held(sk));  in ipv6_set_opt_hdr()
352 	opt = ipv6_renew_options(sk, opt, optname, new);  in ipv6_set_opt_hdr()
354 	if (IS_ERR(opt))  in ipv6_set_opt_hdr()
355 		return PTR_ERR(opt);  in ipv6_set_opt_hdr()
359 	if (optname == IPV6_RTHDR && opt && opt->srcrt) {  in ipv6_set_opt_hdr()
360 		struct ipv6_rt_hdr *rthdr = opt->srcrt;  in ipv6_set_opt_hdr()
371 				(struct ipv6_sr_hdr *)opt->srcrt;  in ipv6_set_opt_hdr()
383 	opt = ipv6_update_options(sk, opt);  in ipv6_set_opt_hdr()
385 	if (opt) {  in ipv6_set_opt_hdr()
386 		atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in ipv6_set_opt_hdr()
387 		txopt_put(opt);  in ipv6_set_opt_hdr()
432 			struct ipv6_txoptions *opt;  in do_ipv6_setsockopt()  local
500 			opt = xchg((__force struct ipv6_txoptions **)&np->opt,  in do_ipv6_setsockopt()
502 			if (opt) {  in do_ipv6_setsockopt()
503 				atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
504 				txopt_put(opt);  in do_ipv6_setsockopt()
691 		struct ipv6_txoptions *opt = NULL;  in do_ipv6_setsockopt()  local
710 		opt = sock_kmalloc(sk, sizeof(*opt) + optlen, GFP_KERNEL);  in do_ipv6_setsockopt()
712 		if (!opt)  in do_ipv6_setsockopt()
715 		memset(opt, 0, sizeof(*opt));  in do_ipv6_setsockopt()
716 		refcount_set(&opt->refcnt, 1);  in do_ipv6_setsockopt()
717 		opt->tot_len = sizeof(*opt) + optlen;  in do_ipv6_setsockopt()
719 		if (copy_from_sockptr(opt + 1, optval, optlen))  in do_ipv6_setsockopt()
723 		msg.msg_control = (void *)(opt+1);  in do_ipv6_setsockopt()
724 		ipc6.opt = opt;  in do_ipv6_setsockopt()
731 		opt = ipv6_update_options(sk, opt);  in do_ipv6_setsockopt()
733 		if (opt) {  in do_ipv6_setsockopt()
734 			atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
735 			txopt_put(opt);  in do_ipv6_setsockopt()
1021 static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_getsockopt_sticky()  argument
1026 	if (!opt)  in ipv6_getsockopt_sticky()
1031 		hdr = opt->hopopt;  in ipv6_getsockopt_sticky()
1034 		hdr = opt->dst0opt;  in ipv6_getsockopt_sticky()
1037 		hdr = (struct ipv6_opt_hdr *)opt->srcrt;  in ipv6_getsockopt_sticky()
1040 		hdr = opt->dst1opt;  in ipv6_getsockopt_sticky()
1254 		struct ipv6_txoptions *opt;  in do_ipv6_getsockopt()  local
1257 		opt = rcu_dereference_protected(np->opt,  in do_ipv6_getsockopt()
1259 		len = ipv6_getsockopt_sticky(sk, opt, optname, optval, len);  in do_ipv6_getsockopt()