Re: [PATCH] IIO: accel: fixed coding style issues

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On Mon, Mar 28, 2022 at 06:06:23PM +0100, Jonathan Cameron wrote:
> On Mon, 28 Mar 2022 10:05:08 -0500
> Paul Lemmermann <thepaulodoom@xxxxxxxxxxxxxxxx> wrote:
> 
> > Fixed case statement issues and spacing issues.
> > 
> > Signed-off-by: Paul Lemmermann <thepaulodoom@xxxxxxxxxxxxxxxx>
> Hi Paul,
> 
> Thanks for the patch.
> 
> These are drivers written / maintained by different authors, so one
> patch per driver preferred.  Particularly handy as people might not
> agree with all of them so separate patches would allow me to pick
> and choose which ones to pick up.
> 
> Comments inline.
> 
> Please state how you identified the changes btw.  Script?

I used the checkpatch.pl script to identify these changes.

> 
> Jonathan
> 
> > ---
> >  drivers/iio/accel/bmc150-accel-core.c | 15 +++++++++++----
> >  drivers/iio/accel/dmard09.c           |  2 +-
> >  drivers/iio/accel/kxsd9-spi.c         |  4 ++--
> >  3 files changed, 14 insertions(+), 7 deletions(-)
> > 
> > diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
> > index d11f66801..f7dd7ec2c 100644
> > --- a/drivers/iio/accel/bmc150-accel-core.c
> > +++ b/drivers/iio/accel/bmc150-accel-core.c
> > @@ -432,10 +432,17 @@ static bool bmc150_apply_bosc0200_acpi_orientation(struct device *dev,
> >  
> >  		for (j = 0; j < 3; j++) {
> >  			switch (val[j]) {
> > -			case -1: str = "-1"; break;
> > -			case 0:  str = "0";  break;
> > -			case 1:  str = "1";  break;
> > -			default: goto unknown_format;
> > +			case -1:
> > +				str = "-1";
> > +				break;
> > +			case 0:
> > +				str = "0";
> > +				break;
> > +			case 1:
> > +				str = "1";
> > +				break;
> > +			default:
> > +				goto unknown_format;
> 
> I'm not seeing any clear advantage to this change.
>
The reason for this change is that most, if not all, case statements in
the kernel are multiple lines. Also, in the kernel docs (https://docs.kernel.org/process/coding-style.html)
it says, to not put multiple statements on one line.

Thanks,
Paul
> 
> >  			}
> >  			orientation->rotation[i * 3 + j] = str;
> >  		}
> > diff --git a/drivers/iio/accel/dmard09.c b/drivers/iio/accel/dmard09.c
> > index e6e28c964..87bc38d4d 100644
> > --- a/drivers/iio/accel/dmard09.c
> > +++ b/drivers/iio/accel/dmard09.c
> > @@ -24,7 +24,7 @@
> >  #define DMARD09_AXIS_Y 1
> >  #define DMARD09_AXIS_Z 2
> >  #define DMARD09_AXIS_X_OFFSET ((DMARD09_AXIS_X + 1) * 2)
> > -#define DMARD09_AXIS_Y_OFFSET ((DMARD09_AXIS_Y + 1 )* 2)
> > +#define DMARD09_AXIS_Y_OFFSET ((DMARD09_AXIS_Y + 1) * 2)
> 
> This is one is good.
> 
> >  #define DMARD09_AXIS_Z_OFFSET ((DMARD09_AXIS_Z + 1) * 2)
> >  
> >  struct dmard09_data {
> > diff --git a/drivers/iio/accel/kxsd9-spi.c b/drivers/iio/accel/kxsd9-spi.c
> > index 57c451cfb..989f53fb0 100644
> > --- a/drivers/iio/accel/kxsd9-spi.c
> > +++ b/drivers/iio/accel/kxsd9-spi.c
> > @@ -44,8 +44,8 @@ static const struct spi_device_id kxsd9_spi_id[] = {
> >  MODULE_DEVICE_TABLE(spi, kxsd9_spi_id);
> >  
> >  static const struct of_device_id kxsd9_of_match[] = {
> > -        { .compatible = "kionix,kxsd9" },
> > -        { },
> > +	{ .compatible = "kionix,kxsd9" },
> 
> Also good to clean up.
> 
> Thanks,
> 
> Jonathan
> 
> 
> > +	{ },
> >  };
> >  MODULE_DEVICE_TABLE(of, kxsd9_of_match);
> >  
> 



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