From 07bf07e2cc7d8658de138b8a217cb0a936d26e7e Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 16 Dec 2019 20:19:23 +0200 Subject: [PATCH] iio: st_lsm6dsx: Mark predefined constants with __maybe_unused MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Since we put static variable to a header file it's copied to each module that includes the header. But not all of them are actually used it. Mark predefined constants with __maybe_unused to calm a compiler down: In file included from drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c:17: .../st_lsm6dsx/st_lsm6dsx.h:399:28: warning: ‘st_lsm6dsx_available_scan_masks’ defined but not used [-Wunused-const-variable=] 399 | static const unsigned long st_lsm6dsx_available_scan_masks[] = {0x7, 0x0}; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .../st_lsm6dsx/st_lsm6dsx.h:392:36: warning: ‘st_lsm6dsx_event’ defined but not used [-Wunused-const-variable=] 392 | static const struct iio_event_spec st_lsm6dsx_event = { | ^~~~~~~~~~~~~~~~ ... Signed-off-by: Andy Shevchenko Signed-off-by: Jonathan Cameron --- drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h index c605b153be41..f1189eef6e37 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h @@ -391,14 +391,17 @@ struct st_lsm6dsx_hw { const struct st_lsm6dsx_settings *settings; }; -static const struct iio_event_spec st_lsm6dsx_event = { +static __maybe_unused const struct iio_event_spec st_lsm6dsx_event = { .type = IIO_EV_TYPE_THRESH, .dir = IIO_EV_DIR_EITHER, .mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE) }; -static const unsigned long st_lsm6dsx_available_scan_masks[] = {0x7, 0x0}; +static __maybe_unused const unsigned long st_lsm6dsx_available_scan_masks[] = { + 0x7, 0x0, +}; + extern const struct dev_pm_ops st_lsm6dsx_pm_ops; int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id,