list_is_singular
list_is_singular(reset_device_list))
if (list_is_singular(&adev->pm.od_kobj_list))
if (list_is_singular(&mgr->tx_msg_downq))
if (!list_is_singular(blocks))
if (!list_is_singular(&allocated)) {
GEM_BUG_ON(!list_is_singular(&mm->hole_stack));
KUNIT_ASSERT_TRUE(test, list_is_singular(&man->lru[bo->priority]));
KUNIT_ASSERT_TRUE(test, list_is_singular(&pt->pages));
KUNIT_ASSERT_TRUE(test, list_is_singular(&pt->pages));
KUNIT_ASSERT_TRUE(test, list_is_singular(&man->lru[bo->priority]));
KUNIT_ASSERT_TRUE(test, list_is_singular(&bo->bdev->unevictable));