414 	struct verifier_stack_elem *elem;  in pop_stack()  local
424 	elem = env->head->next;  in pop_stack()
426 	env->head = elem;  in pop_stack()
434 	struct verifier_stack_elem *elem;  in push_stack()  local
436 	elem = kmalloc(sizeof(struct verifier_stack_elem), GFP_KERNEL);  in push_stack()
437 	if (!elem)  in push_stack()
440 	memcpy(&elem->st, &env->cur_state, sizeof(env->cur_state));  in push_stack()
441 	elem->insn_idx = insn_idx;  in push_stack()
442 	elem->prev_insn_idx = prev_insn_idx;  in push_stack()
443 	elem->next = env->head;  in push_stack()
444 	env->head = elem;  in push_stack()
450 	return &elem->st;  in push_stack()