The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it might not be relevant here). drivers/usb/gadget/udc/renesas_usb3.c:2811:34: error: ‘usb3_of_match’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- drivers/usb/gadget/udc/renesas_usb3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index bee6bceafc4f..24ff3bce68df 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -3039,7 +3039,7 @@ static struct platform_driver renesas_usb3_driver = { .driver = { .name = udc_name, .pm = &renesas_usb3_pm_ops, - .of_match_table = of_match_ptr(usb3_of_match), + .of_match_table = usb3_of_match, }, }; module_platform_driver(renesas_usb3_driver); -- 2.34.1