The driver can be compile tested with !CONFIG_OF making certain data unused: drivers/rtc/rtc-ds1390.c:216:34: error: ‘ds1390_of_match’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- drivers/rtc/rtc-ds1390.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/rtc/rtc-ds1390.c b/drivers/rtc/rtc-ds1390.c index 93ce72b9ae59..f46428ca77cc 100644 --- a/drivers/rtc/rtc-ds1390.c +++ b/drivers/rtc/rtc-ds1390.c @@ -213,7 +213,7 @@ static int ds1390_probe(struct spi_device *spi) return res; } -static const struct of_device_id ds1390_of_match[] = { +static const struct of_device_id ds1390_of_match[] __maybe_unused = { { .compatible = "dallas,ds1390" }, {} }; -- 2.34.1