Re: [PATCH -next] iio: imu: st_lsm6dsx: remove set but not used variable ''

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On Sat, 15 Dec 2018 09:24:57 +0100
Lorenzo Bianconi <lorenzo.bianconi83@xxxxxxxxx> wrote:

> >
> > Fixes gcc '-Wunused-but-set-variable' warning:
> >
> > drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c: In function 'st_lsm6dsx_shub_read_reg':
> > drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c:108:41: warning:
> >  variable 'hub_settings' set but not used [-Wunused-but-set-variable]
> >
> > It never used since introduction in commit c91c1c844ebd ("iio: imu: st_lsm6dsx:
> > add i2c embedded controller support")
> >
> > Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
> > ---
> >  drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c | 2 --
> >  1 file changed, 2 deletions(-)
> >
> > diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
> > index 8e47dcc..66fbcd9 100644
> > --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
> > +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
> > @@ -105,12 +105,10 @@ static void st_lsm6dsx_shub_wait_complete(struct st_lsm6dsx_hw *hw)
> >  static int st_lsm6dsx_shub_read_reg(struct st_lsm6dsx_hw *hw, u8 addr,
> >                                     u8 *data, int len)
> >  {
> > -       const struct st_lsm6dsx_shub_settings *hub_settings;
> >         int err;
> >
> >         mutex_lock(&hw->page_lock);
> >
> > -       hub_settings = &hw->settings->shub_settings;
> >         err = st_lsm6dsx_set_page(hw, true);
> >         if (err < 0)
> >                 goto out;
> >
> >
> >  
> Acked-by: Lorenzo Bianconi <lorenzo.bianconi83@xxxxxxxxx>

Applied to the togreg branch of iio.git and pushed out as testing for the
autobuilders to play with it.

Thanks,

Jonathan





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