linux-kernel - Re: [PATCH 0/4] Drop casting to void in dev_set

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Date: Sat, 9 Mar 2024 18:33:42 +0000
From: Jonathan Cameron <jic23@...nel.org>
To: Javier Carrasco <javier.carrasco.cruz@...il.com>
Cc: Arnd Bergmann <arnd@...db.de>, Greg Kroah-Hartman
 <gregkh@...uxfoundation.org>, Michal Simek <michal.simek@....com>,
 Lars-Peter Clausen <lars@...afoo.de>, Lorenzo Bianconi
 <lorenzo@...nel.org>, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org
Subject: Re: [PATCH 0/4] Drop casting to void in dev_set_drvdata

On Sun, 03 Mar 2024 23:34:38 +0100
Javier Carrasco <javier.carrasco.cruz@...il.com> wrote:

> The C standard specifies that there is no need to cast from a pointer to
> void [1].
> 
> The vast majority of the users of dev_set_drvdata do not cast their
> pointers to void, and the few that do so should be fixed before it
> spreads by following bad examples (which I was about to do here [2]).
> 
> The very specific cases where the cast avoids warnings (e.g. droping
> const) have been kept as they are.
> 
> [1] C Standard Committee: https://c0x.shape-of-code.com/6.3.2.3.html
> [2] https://lore.kernel.org/linux-iio/20240226-hdc3020-pm-v2-0-cec6766086e8@gmail.com/T/#t
> 
> Signed-off-by: Javier Carrasco <javier.carrasco.cruz@...il.com>
> ---
> Javier Carrasco (4):
>       char: xilinx_hwicap: drop casting to void in dev_set_drvdata
>       io: light: st_uvis25: drop casting to void in dev_set_drvdata
>       iio: humidity: hts211: drop casting to void in dev_set_drvdata
>       iio: imu: st_lsm6dsx: drop casting to void in dev_set_drvdata
> 
>  drivers/char/xilinx_hwicap/xilinx_hwicap.c   | 2 +-
>  drivers/iio/humidity/hts221_core.c           | 2 +-
>  drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 2 +-
>  drivers/iio/light/st_uvis25_core.c           | 2 +-
>  4 files changed, 4 insertions(+), 4 deletions(-)
> ---
> base-commit: 90d35da658da8cff0d4ecbb5113f5fac9d00eb72
> change-id: 20240303-void_in_dev_set_drvdata-2d8cae908e49
> 
> Best regards,

Thanks for tidying these up.

Applied to the togreg-normal branch of iio.git.
This will get rebase on rc1 once available and become togreg.

Jonathan