As reported by the kernel test robot, the following warning occur:
>> drivers/input/touchscreen/wdt87xx_i2c.c:1166:36: warning: 'wdt87xx_acpi_id' defined but not used [-Wunused-const-variable=]
1166 | static const struct acpi_device_id wdt87xx_acpi_id[] = {
| ^~~~~~~~~~~~~~~
The 'wdt87xx_acpi_id' array is only used when CONFIG_ACPI is enabled.
Wrapping its definition and 'MODULE_DEVICE_TABLE' in '#ifdef CONFIG_ACPI'
prevents a compiler warning when ACPI is disabled.
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202501181549.uzdlBwuN-lkp@xxxxxxxxx/
Signed-off-by: Yu-Chun Lin <eleanor15x@xxxxxxxxx>
---
drivers/input/touchscreen/wdt87xx_i2c.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/input/touchscreen/wdt87xx_i2c.c b/drivers/input/touchscreen/wdt87xx_i2c.c
index 27941245e962..88d376090e6e 100644
--- a/drivers/input/touchscreen/wdt87xx_i2c.c
+++ b/drivers/input/touchscreen/wdt87xx_i2c.c
@@ -1153,11 +1153,13 @@ static const struct i2c_device_id wdt87xx_dev_id[] = {
};
MODULE_DEVICE_TABLE(i2c, wdt87xx_dev_id);
+#ifdef CONFIG_ACPI
static const struct acpi_device_id wdt87xx_acpi_id[] = {
{ "WDHT0001", 0 },
{ }
};
MODULE_DEVICE_TABLE(acpi, wdt87xx_acpi_id);
+#endif
static struct i2c_driver wdt87xx_driver = {
.probe = wdt87xx_ts_probe,
--
2.43.0
