linux-kernel - Re: [PATCH v9 7/8] media: v4l2-ctrl: Add new helper v4l2_ctrl_ptr

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Date:   Fri, 4 Oct 2019 12:27:41 +0200
From:   Hans Verkuil <hverkuil-cisco@...all.nl>
To:     Ricardo Ribalda Delgado <ribalda@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Jacopo Mondi <jacopo@...ndi.org>, linux-media@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Hans Verkuil <hverkuil@...all.nl>
Subject: Re: [PATCH v9 7/8] media: v4l2-ctrl: Add new helper
 v4l2_ctrl_ptr_create

On 10/1/19 1:24 PM, Ricardo Ribalda Delgado wrote:
> This helper function simplifies the code by not needing a union
> v4l2_ctrl_ptr and an assignment every time we need to use
> a ctrl_ptr.
> 
> Suggested-by: Hans Verkuil <hverkuil@...all.nl>
> Signed-off-by: Ricardo Ribalda Delgado <ribalda@...nel.org>
> ---
>  include/media/v4l2-ctrls.h | 12 ++++++++++++
>  1 file changed, 12 insertions(+)
> 
> diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
> index c42f164e2c9e..51d74fa7c7e2 100644
> --- a/include/media/v4l2-ctrls.h
> +++ b/include/media/v4l2-ctrls.h
> @@ -73,6 +73,18 @@ union v4l2_ctrl_ptr {
>  	void *p;
>  };
>  
> +/**
> + * v4l2_ctrl_ptr_create() - Helper function to return a v4l2_ctrl_ptr from a
> + * void pointer
> + * @ptr:	The void pointer
> + */
> +static inline union v4l2_ctrl_ptr v4l2_ctrl_ptr_create(void *ptr)
> +{
> +	union v4l2_ctrl_ptr p = {.p = ptr};

Nitpick: add space after { and before }

Regards,

	Hans

> +
> +	return p;
> +}
> +
>  /**
>   * struct v4l2_ctrl_ops - The control operations that the driver has to provide.
>   *
>