[PATCH AUTOSEL 5.4 14/52] iio: st_accel: Fix unused variable warning

From: Sasha Levin
Date: Fri Dec 20 2019 - 09:37:42 EST


From: YueHaibing <yuehaibing@xxxxxxxxxx>

[ Upstream commit 0163c1c521ff8b09cd8ca395003cc00178161d77 ]

drivers/iio/accel/st_accel_core.c:1005:44: warning:
mount_matrix_ext_info defined but not used [-Wunused-const-variable=]

Using stub helper while CONFIG_ACPI is disabled to fix it.

Suggested-by: Ladislav Michl <ladis@xxxxxxxxxxxxxx>
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/iio/accel/st_accel_core.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 2e37f8a6d8cfc..be661396095ce 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -993,6 +993,7 @@ static const struct iio_trigger_ops st_accel_trigger_ops = {
#define ST_ACCEL_TRIGGER_OPS NULL
#endif

+#ifdef CONFIG_ACPI
static const struct iio_mount_matrix *
get_mount_matrix(const struct iio_dev *indio_dev,
const struct iio_chan_spec *chan)
@@ -1013,7 +1014,6 @@ static const struct iio_chan_spec_ext_info mount_matrix_ext_info[] = {
static int apply_acpi_orientation(struct iio_dev *indio_dev,
struct iio_chan_spec *channels)
{
-#ifdef CONFIG_ACPI
struct st_sensor_data *adata = iio_priv(indio_dev);
struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
struct acpi_device *adev;
@@ -1141,10 +1141,14 @@ static int apply_acpi_orientation(struct iio_dev *indio_dev,
out:
kfree(buffer.pointer);
return ret;
+}
#else /* !CONFIG_ACPI */
+static int apply_acpi_orientation(struct iio_dev *indio_dev,
+ struct iio_chan_spec *channels)
+{
return 0;
-#endif
}
+#endif

/*
* st_accel_get_settings() - get sensor settings from device name
--
2.20.1