From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH v2 net] tcp/dccp: fix other lockdep splats accessing
 ireq_opt
Date: Tue, 24 Oct 2017 18:56:16 +0900 (KST)
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From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 23 Oct 2017 16:15:08 -0700

> +static inline struct ip_options_rcu *ireq_opt_deref(const struct inet_request_sock *ireq)
> +{
> +	return rcu_dereference_check(ireq->ireq_opt,
> +				     refcount_read(&ireq.req->rsk_refcnt) > 0);
                                                    ^^^^^^^^^

Eric, _please_ build test your changes properly.