struct xfrm_state *xfrm_state_lookup_byspi(struct net *net, __be32 spi,
					      unsigned short family)
{
	struct xfrm_state *x;
	struct xfrm_state_walk *w;

	spin_lock_bh(&net->xfrm.xfrm_state_lock);
	list_for_each_entry(w, &net->xfrm.state_all, all) {
		x = container_of(w, struct xfrm_state, km);
		if (x->props.family != family ||
			x->id.spi != spi)
			continue;

		xfrm_state_hold(x);
		spin_unlock_bh(&net->xfrm.xfrm_state_lock);
		return x;
	}
	spin_unlock_bh(&net->xfrm.xfrm_state_lock);
	return NULL;
}
Unknown