iio: ad_sigma_delta: Remove no-op trigger ops

The IIO core handles a trigger ops with all NULL callbacks the
same as if the trigger ops itself was NULL.

Remove the empty trigger ops from the interrupt trigger driver to slightly
reduce the boilerplate code. Object size of the driver module is also
slightly reduced.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Link: https://lore.kernel.org/r/20211031142130.20791-3-lars@metafoo.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index 1d652d9b2f5cdf0c1475f856084261e10e1ee24a..cd418bd8bd87df86f7d1f80351ef63ff3c7545b0 100644 (file)
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -467,9 +467,6 @@ int ad_sd_validate_trigger(struct iio_dev *indio_dev, struct iio_trigger *trig)
 }
 EXPORT_SYMBOL_GPL(ad_sd_validate_trigger);
 
-static const struct iio_trigger_ops ad_sd_trigger_ops = {
-};
-
 static int devm_ad_sd_probe_trigger(struct device *dev, struct iio_dev *indio_dev)
 {
        struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
@@ -486,7 +483,6 @@ static int devm_ad_sd_probe_trigger(struct device *dev, struct iio_dev *indio_de
        if (sigma_delta->trig == NULL)
                return -ENOMEM;
 
-       sigma_delta->trig->ops = &ad_sd_trigger_ops;
        init_completion(&sigma_delta->completion);
 
        sigma_delta->irq_dis = true;