static inline int xfrm_nlmsg_multicast(struct net *net, struct sk_buff *skb,
				       u32 pid, unsigned int group)
{
	struct sock *nlsk = rcu_dereference(net->xfrm.nlsk);

	if (!nlsk) {
		kfree_skb(skb);
		return -EPIPE;
	}

	return nlmsg_multicast(nlsk, skb, pid, group, GFP_ATOMIC);
}
Unknown