On Sun, Sep 29, 2024 at 06:04:26PM +0100, Jonathan Cameron wrote:
> On Sun, 29 Sep 2024 13:25:10 +0200
> Vasileios Amoiridis <vassilisamir@xxxxxxxxx> wrote:
>
> > The adc values coming directly from the sensor in the BM{E,P}{2,3}xx
> > sensors are unsigned values so treat them as such.
> >
> > Fixes: 80cd23f43ddc ("iio: pressure: bmp280: Add triggered buffer support")
> Why is this a fix rather than a cleanup? Looks to me like all the values
> are going to be small enough that they fit either way.
> So good to tidy up for consistency etc, but why a fixes tag?
>
> I
>
Hi Jonathan,
I used the fixes tag because I though it was appropriate since it was
using a wrong variable type even though it was not posing any
functional thread (I mentioned it in the cover-letter as well).
Since I am doing a new version I can drop the tag, no problem!!!
Cheers,
Vasilis
> > Signed-off-by: Vasileios Amoiridis <vassilisamir@xxxxxxxxx>
> > ---
> > drivers/iio/pressure/bmp280-core.c | 9 ++++++---
> > 1 file changed, 6 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
> > index 6c2606f34ec4..472a6696303b 100644
> > --- a/drivers/iio/pressure/bmp280-core.c
> > +++ b/drivers/iio/pressure/bmp280-core.c
> > @@ -1023,7 +1023,8 @@ static irqreturn_t bmp280_trigger_handler(int irq, void *p)
> > struct iio_poll_func *pf = p;
> > struct iio_dev *indio_dev = pf->indio_dev;
> > struct bmp280_data *data = iio_priv(indio_dev);
> > - s32 adc_temp, adc_press, t_fine;
> > + u32 adc_temp, adc_press;
> These are filled as part of a get_unaligned_be24() so the value will never
> be big enough that signed / unsigned should make any difference.
>
> > + s32 t_fine;
> > int ret;
> >
> > guard(mutex)(&data->lock);
> > @@ -1137,7 +1138,8 @@ static irqreturn_t bme280_trigger_handler(int irq, void *p)
> > struct iio_poll_func *pf = p;
> > struct iio_dev *indio_dev = pf->indio_dev;
> > struct bmp280_data *data = iio_priv(indio_dev);
> > - s32 adc_temp, adc_press, adc_humidity, t_fine;
> > + u32 adc_temp, adc_press, adc_humidity;
> Same with these.
> > + s32 t_fine;
> > int ret;
> >
> > guard(mutex)(&data->lock);
> > @@ -1616,7 +1618,8 @@ static irqreturn_t bmp380_trigger_handler(int irq, void *p)
> > struct iio_poll_func *pf = p;
> > struct iio_dev *indio_dev = pf->indio_dev;
> > struct bmp280_data *data = iio_priv(indio_dev);
> > - s32 adc_temp, adc_press, t_fine;
> These are similar but le24.
>
> > + u32 adc_temp, adc_press;
> > + s32 t_fine;
> > int ret;
> >
> > guard(mutex)(&data->lock);
>
