iio: light: isl29018: Only declare ACPI table when ACPI is enabled

This fixes the following warning when building with clang:

drivers/iio/light/isl29018.c:808:36: error: variable
    'isl29018_acpi_match' is not needed and will not be emitted
    [-Werror,-Wunneeded-internal-declaration]

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/light/isl29018.c b/drivers/iio/light/isl29018.c
index 917dd8b43e72d590d3d60a87403c17371ed3acb1..61f5924b472d9651e1f84c84156e3281be549fdb 100644 (file)
--- a/drivers/iio/light/isl29018.c
+++ b/drivers/iio/light/isl29018.c
@@ -807,6 +807,7 @@ static SIMPLE_DEV_PM_OPS(isl29018_pm_ops, isl29018_suspend, isl29018_resume);
 #define ISL29018_PM_OPS NULL
 #endif
 
+#ifdef CONFIG_ACPI
 static const struct acpi_device_id isl29018_acpi_match[] = {
        {"ISL29018", isl29018},
        {"ISL29023", isl29023},
@@ -814,6 +815,7 @@ static const struct acpi_device_id isl29018_acpi_match[] = {
        {},
 };
 MODULE_DEVICE_TABLE(acpi, isl29018_acpi_match);
+#endif
 
 static const struct i2c_device_id isl29018_id[] = {
        {"isl29018", isl29018},