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 is not relevant here). drivers/regulator/twl6030-regulator.c:646:34: error: ‘twl_of_match’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- drivers/regulator/twl6030-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/twl6030-regulator.c b/drivers/regulator/twl6030-regulator.c index f3856750944f..be798f3c129e 100644 --- a/drivers/regulator/twl6030-regulator.c +++ b/drivers/regulator/twl6030-regulator.c @@ -765,7 +765,7 @@ static struct platform_driver twlreg_driver = { */ .driver = { .name = "twl6030_reg", - .of_match_table = of_match_ptr(twl_of_match), + .of_match_table = twl_of_match, }, }; -- 2.34.1