__xfrm_find_acq_byseq
static struct xfrm_state *__xfrm_find_acq_byseq(struct net *net, u32 mark, u32 seq, u32 pcpu_num);
x1 = __xfrm_find_acq_byseq(net, mark, x->km.seq, x->pcpu_num);
x = __xfrm_find_acq_byseq(net, mark, seq, pcpu_num);