From: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Letting the compiler remove these functions when the kernel is built without CONFIG_PM_SLEEP support is simpler and less error prone than the use of #ifdef based config guards. Removing instances of this approach from IIO also stops them being copied into new drivers. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Cc: Icenowy Zheng <icenowy@xxxxxxx> Cc: Luca Weiss <luca@xxxxxxxxx> Cc: Martijn Braam <martijn@xxxxxxxxx> --- drivers/iio/light/stk3310.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c index fc63856ed54d..36f8227ac800 100644 --- a/drivers/iio/light/stk3310.c +++ b/drivers/iio/light/stk3310.c @@ -632,7 +632,6 @@ static int stk3310_remove(struct i2c_client *client) return stk3310_set_state(iio_priv(indio_dev), STK3310_STATE_STANDBY); } -#ifdef CONFIG_PM_SLEEP static int stk3310_suspend(struct device *dev) { struct stk3310_data *data; @@ -656,12 +655,7 @@ static int stk3310_resume(struct device *dev) return stk3310_set_state(data, state); } -static SIMPLE_DEV_PM_OPS(stk3310_pm_ops, stk3310_suspend, stk3310_resume); - -#define STK3310_PM_OPS (&stk3310_pm_ops) -#else -#define STK3310_PM_OPS NULL -#endif +DEFINE_SIMPLE_DEV_PM_OPS(stk3310_pm_ops, stk3310_suspend, stk3310_resume); static const struct i2c_device_id stk3310_i2c_id[] = { {"STK3310", 0}, @@ -692,7 +686,7 @@ static struct i2c_driver stk3310_driver = { .driver = { .name = "stk3310", .of_match_table = stk3310_of_match, - .pm = STK3310_PM_OPS, + .pm = pm_sleep_ptr(&stk3310_pm_ops), .acpi_match_table = ACPI_PTR(stk3310_acpi_id), }, .probe = stk3310_probe, -- 2.34.1