On Fri, 8 Sep 2017 07:29:06 +0100
Jonathan Cameron <ji...@jic23.retrosnub.co.uk> wrote:

> On 8 September 2017 05:47:52 BST, Himanshi Jain <himshijain...@gmail.com> 
> wrote:
> >Added space around(one on each side of) binary
> >operator(-) as preferred according to kernel
> >coding style.
> >
> >Signed-off-by: Himanshi Jain <himshijain...@gmail.com>  
> 
> Take a closer look at that macro. It isn't doing what you think...  
> To give a hint, changing this breaks userspace.

Ok, I'm bored of this particular one coming up. When you have
worked out what is going on Himanshi, would you mind putting
together a patch adding a comment describing why it is a bad
idea to 'fix' this?  That would be a very useful patch as
far as I'm concerned :)

There aren't that many cases of this in IIO so adding a comment
on each of them is probably reasonable just to avoid wasting
people's time on fixing them! (I think we have had more than
5 such goes this year so far...)

Jonathan

> 
> Jonathan
> 
> 
> >---
> > drivers/staging/iio/adc/ad7192.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> >diff --git a/drivers/staging/iio/adc/ad7192.c
> >b/drivers/staging/iio/adc/ad7192.c
> >index d11c6de..1aee662 100644
> >--- a/drivers/staging/iio/adc/ad7192.c
> >+++ b/drivers/staging/iio/adc/ad7192.c
> >@@ -341,7 +341,7 @@ static int ad7192_setup(struct ad7192_state *st,
> > }
> > 
> > static IIO_DEVICE_ATTR_NAMED(in_v_m_v_scale_available,
> >-                         in_voltage-voltage_scale_available,
> >+                         in_voltage - voltage_scale_available,
> >                          0444, ad7192_show_scale_available, NULL, 0);
> > 
> > static IIO_DEVICE_ATTR(in_voltage_scale_available, 0444,  
> 

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