serial: sh-sci: mark OF related data as maybe unused

The driver can be compile tested with !CONFIG_OF making certain data
unused:

  drivers/tty/serial/sh-sci.c:3144:34: error: ‘of_sci_match’ defined but not used [-Werror=unused-const-variable=]

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230310222957.315848-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index a3e12e9..af4a7a8 100644 (file)
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -3141,7 +3141,7 @@ static int sci_remove(struct platform_device *dev)
 #define SCI_OF_TYPE(data)              ((unsigned long)(data) >> 16)
 #define SCI_OF_REGTYPE(data)           ((unsigned long)(data) & 0xffff)
 
-static const struct of_device_id of_sci_match[] = {
+static const struct of_device_id of_sci_match[] __maybe_unused = {
        /* SoC-specific types */
        {
                .compatible = "renesas,scif-r7s72100",