The driver's acpi_device_id table is referenced via ACPI_PTR() so it will be unused for !CONFIG_ACPI builds: drivers/tty/serial/8250/8250_tegra.c:178:36: warning: ‘tegra_uart_acpi_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> --- drivers/tty/serial/8250/8250_tegra.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250_tegra.c b/drivers/tty/serial/8250/8250_tegra.c index e13ae18b0713..e7cddeec9d8e 100644 --- a/drivers/tty/serial/8250/8250_tegra.c +++ b/drivers/tty/serial/8250/8250_tegra.c @@ -175,7 +175,7 @@ static const struct of_device_id tegra_uart_of_match[] = { }; MODULE_DEVICE_TABLE(of, tegra_uart_of_match); -static const struct acpi_device_id tegra_uart_acpi_match[] = { +static const struct acpi_device_id tegra_uart_acpi_match[] __maybe_unused = { { "NVDA0100", 0 }, { }, }; -- 2.32.0