465 	p4d_t p4d;  in p4d_basic_tests()  local
468 	memset(&p4d, RANDOM_NZVALUE, sizeof(p4d_t));  in p4d_basic_tests()
469 	WARN_ON(!p4d_same(p4d, p4d));  in p4d_basic_tests()
525 	p4d_t p4d = READ_ONCE(*p4dp);  in p4d_clear_tests()  local
531 	p4d = __p4d(p4d_val(p4d) | RANDOM_ORVALUE);  in p4d_clear_tests()
532 	WRITE_ONCE(*p4dp, p4d);  in p4d_clear_tests()
534 	p4d = READ_ONCE(*p4dp);  in p4d_clear_tests()
535 	WARN_ON(!p4d_none(p4d));  in p4d_clear_tests()
541 	p4d_t p4d;  in p4d_populate_tests()  local
554 	p4d = READ_ONCE(*p4dp);  in p4d_populate_tests()
555 	WARN_ON(p4d_bad(p4d));  in p4d_populate_tests()