static void tw_prot_cleanup(struct timewait_sock_ops *twsk_prot)
{
	if (!twsk_prot)
		return;
	kfree(twsk_prot->twsk_slab_name);
	twsk_prot->twsk_slab_name = NULL;
	kmem_cache_destroy(twsk_prot->twsk_slab);
	twsk_prot->twsk_slab = NULL;
}
static void tw_prot_cleanup(struct timewait_sock_ops *twsk_prot)
{
	if (!twsk_prot)
		return;
	kfree(twsk_prot->twsk_slab_name);
	twsk_prot->twsk_slab_name = NULL;
	kmem_cache_destroy(twsk_prot->twsk_slab);
	twsk_prot->twsk_slab = NULL;
}