Re: [PATCH 1/1] hwmon: powr1220: remove unnecessary (void*) conversions

From: Guenter Roeck
Date: Wed Jan 11 2023 - 01:28:18 EST


On Wed, Jan 11, 2023 at 01:15:17PM +0700, Ammar Faizi wrote:
> On 1/11/23 11:37 AM, XU pengfei wrote:
> > Pointer variables of void * type do not require type cast.
> >
> > Signed-off-by: XU pengfei <xupengfei@xxxxxxxxxxxx>
> > ---
> > drivers/hwmon/powr1220.c | 2 +-
> > 1 files changed, 1 insertions(+), 1 deletions(-)
> >
> > diff --git a/drivers/hwmon/powr1220.c b/drivers/hwmon/powr1220.c
> > index f77dc6db31ac..501337ee5aa3 100644
> > --- a/drivers/hwmon/powr1220.c
> > +++ b/drivers/hwmon/powr1220.c
> > @@ -174,7 +174,7 @@ static umode_t
> > powr1220_is_visible(const void *data, enum hwmon_sensor_types type, u32
> > attr, int channel)
> > {
> > - struct powr1220_data *chip_data = (struct powr1220_data *)data;
> > + struct powr1220_data *chip_data = data;
>
> Broken:
>
> CC [M] drivers/hwmon/powr1220.o
> drivers/hwmon/powr1220.c: In function ‘powr1220_is_visible’:
> drivers/hwmon/powr1220.c:177:43: error: initialization discards ‘const’ qualifier from pointer target type [-Werror=discarded-qualifiers]
> 177 | struct powr1220_data *chip_data = data;
> | ^~~~
> cc1: all warnings being treated as errors
> make[2]: *** [scripts/Makefile.build:249: drivers/hwmon/powr1220.o] Error 1
> make[1]: *** [scripts/Makefile.build:465: drivers/hwmon] Error 2
> make: *** [Makefile:1853: drivers] Error 2
>

Thanks for catching. Sigh. Wouldn't it be nice if submitters would
at least build test their patches ?

Guenter