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()
173 			struct ipv6_txoptions *opt;  in do_ipv6_setsockopt()  local
234 			opt = xchg((__force struct ipv6_txoptions **)&np->opt,  in do_ipv6_setsockopt()
236 			if (opt) {  in do_ipv6_setsockopt()
237 				atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
238 				txopt_put(opt);  in do_ipv6_setsockopt()
398 		struct ipv6_txoptions *opt;  in do_ipv6_setsockopt()  local
428 		opt = rcu_dereference_protected(np->opt,  in do_ipv6_setsockopt()
430 		opt = ipv6_renew_options(sk, opt, optname, new);  in do_ipv6_setsockopt()
432 		if (IS_ERR(opt)) {  in do_ipv6_setsockopt()
433 			retv = PTR_ERR(opt);  in do_ipv6_setsockopt()
439 		if (optname == IPV6_RTHDR && opt && opt->srcrt) {  in do_ipv6_setsockopt()
440 			struct ipv6_rt_hdr *rthdr = opt->srcrt;  in do_ipv6_setsockopt()
453 							  opt->srcrt;  in do_ipv6_setsockopt()
465 		opt = ipv6_update_options(sk, opt);  in do_ipv6_setsockopt()
467 		if (opt) {  in do_ipv6_setsockopt()
468 			atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
469 			txopt_put(opt);  in do_ipv6_setsockopt()
498 		struct ipv6_txoptions *opt = NULL;  in do_ipv6_setsockopt()  local
517 		opt = sock_kmalloc(sk, sizeof(*opt) + optlen, GFP_KERNEL);  in do_ipv6_setsockopt()
519 		if (!opt)  in do_ipv6_setsockopt()
522 		memset(opt, 0, sizeof(*opt));  in do_ipv6_setsockopt()
523 		refcount_set(&opt->refcnt, 1);  in do_ipv6_setsockopt()
524 		opt->tot_len = sizeof(*opt) + optlen;  in do_ipv6_setsockopt()
526 		if (copy_from_user(opt+1, optval, optlen))  in do_ipv6_setsockopt()
530 		msg.msg_control = (void *)(opt+1);  in do_ipv6_setsockopt()
531 		ipc6.opt = opt;  in do_ipv6_setsockopt()
538 		opt = ipv6_update_options(sk, opt);  in do_ipv6_setsockopt()
540 		if (opt) {  in do_ipv6_setsockopt()
541 			atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
542 			txopt_put(opt);  in do_ipv6_setsockopt()
988 static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_getsockopt_sticky()  argument
993 	if (!opt)  in ipv6_getsockopt_sticky()
998 		hdr = opt->hopopt;  in ipv6_getsockopt_sticky()
1001 		hdr = opt->dst0opt;  in ipv6_getsockopt_sticky()
1004 		hdr = (struct ipv6_opt_hdr *)opt->srcrt;  in ipv6_getsockopt_sticky()
1007 		hdr = opt->dst1opt;  in ipv6_getsockopt_sticky()
1165 		struct ipv6_txoptions *opt;  in do_ipv6_getsockopt()  local
1168 		opt = rcu_dereference_protected(np->opt,  in do_ipv6_getsockopt()
1170 		len = ipv6_getsockopt_sticky(sk, opt, optname, optval, len);  in do_ipv6_getsockopt()