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()
175 			struct ipv6_txoptions *opt;  in do_ipv6_setsockopt()  local
236 			opt = xchg((__force struct ipv6_txoptions **)&np->opt,  in do_ipv6_setsockopt()
238 			if (opt) {  in do_ipv6_setsockopt()
239 				atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
240 				txopt_put(opt);  in do_ipv6_setsockopt()
400 		struct ipv6_txoptions *opt;  in do_ipv6_setsockopt()  local
430 		opt = rcu_dereference_protected(np->opt,  in do_ipv6_setsockopt()
432 		opt = ipv6_renew_options(sk, opt, optname, new);  in do_ipv6_setsockopt()
434 		if (IS_ERR(opt)) {  in do_ipv6_setsockopt()
435 			retv = PTR_ERR(opt);  in do_ipv6_setsockopt()
441 		if (optname == IPV6_RTHDR && opt && opt->srcrt) {  in do_ipv6_setsockopt()
442 			struct ipv6_rt_hdr *rthdr = opt->srcrt;  in do_ipv6_setsockopt()
455 							  opt->srcrt;  in do_ipv6_setsockopt()
467 		opt = ipv6_update_options(sk, opt);  in do_ipv6_setsockopt()
469 		if (opt) {  in do_ipv6_setsockopt()
470 			atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
471 			txopt_put(opt);  in do_ipv6_setsockopt()
500 		struct ipv6_txoptions *opt = NULL;  in do_ipv6_setsockopt()  local
519 		opt = sock_kmalloc(sk, sizeof(*opt) + optlen, GFP_KERNEL);  in do_ipv6_setsockopt()
521 		if (!opt)  in do_ipv6_setsockopt()
524 		memset(opt, 0, sizeof(*opt));  in do_ipv6_setsockopt()
525 		refcount_set(&opt->refcnt, 1);  in do_ipv6_setsockopt()
526 		opt->tot_len = sizeof(*opt) + optlen;  in do_ipv6_setsockopt()
528 		if (copy_from_user(opt+1, optval, optlen))  in do_ipv6_setsockopt()
532 		msg.msg_control = (void *)(opt+1);  in do_ipv6_setsockopt()
533 		ipc6.opt = opt;  in do_ipv6_setsockopt()
540 		opt = ipv6_update_options(sk, opt);  in do_ipv6_setsockopt()
542 		if (opt) {  in do_ipv6_setsockopt()
543 			atomic_sub(opt->tot_len, &sk->sk_omem_alloc);  in do_ipv6_setsockopt()
544 			txopt_put(opt);  in do_ipv6_setsockopt()
977 static int ipv6_getsockopt_sticky(struct sock *sk, struct ipv6_txoptions *opt,  in ipv6_getsockopt_sticky()  argument
982 	if (!opt)  in ipv6_getsockopt_sticky()
987 		hdr = opt->hopopt;  in ipv6_getsockopt_sticky()
990 		hdr = opt->dst0opt;  in ipv6_getsockopt_sticky()
993 		hdr = (struct ipv6_opt_hdr *)opt->srcrt;  in ipv6_getsockopt_sticky()
996 		hdr = opt->dst1opt;  in ipv6_getsockopt_sticky()
1154 		struct ipv6_txoptions *opt;  in do_ipv6_getsockopt()  local
1157 		opt = rcu_dereference_protected(np->opt,  in do_ipv6_getsockopt()
1159 		len = ipv6_getsockopt_sticky(sk, opt, optname, optval, len);  in do_ipv6_getsockopt()