if (tn && tn->pos+tn->bits > 32) { printk("TNODE ERROR tn=%p, pos=%d, bits=%d\n", tn, tn->pos, tn->bits); }
WARN_ON(tn && tn->pos+tn->bits > 32);
static void check_tnode(struct tnode *tn){	if (tn && tn->pos+tn->bits > 32) {		printk("TNODE ERROR tn=%p, pos=%d, bits=%d\n", tn, tn->pos, tn->bits);	}}