Re: [PATCH 02/20] media: saa7134-go7007: get rid of to_state() function

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On Wed, Nov 24, 2021 at 08:13:05PM +0100, Mauro Carvalho Chehab wrote:
> This is just an alias for container_of() and it is used only
> on a commented code. The commented code actually is an issue that
> require fixes, so, move the container_of() call to the commented
> code, and drop the unused function.
> 
> This way, a fix for the function could be added later without
> needing to re-add to_state() function.
> 
> This fixes a clang W=1 warning.
> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>

Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx>

> ---
> 
> To avoid mailbombing on a large number of people, only mailing lists were C/C on the cover.
> See [PATCH 00/20] at: https://lore.kernel.org/all/cover.1637781097.git.mchehab+huawei@xxxxxxxxxx/
> 
>  drivers/media/pci/saa7134/saa7134-go7007.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/drivers/media/pci/saa7134/saa7134-go7007.c b/drivers/media/pci/saa7134/saa7134-go7007.c
> index f319edb39c0e..da83893ffee9 100644
> --- a/drivers/media/pci/saa7134/saa7134-go7007.c
> +++ b/drivers/media/pci/saa7134/saa7134-go7007.c
> @@ -56,11 +56,6 @@ struct saa7134_go7007 {
>  	dma_addr_t bottom_dma;
>  };
>  
> -static inline struct saa7134_go7007 *to_state(struct v4l2_subdev *sd)
> -{
> -	return container_of(sd, struct saa7134_go7007, sd);
> -}
> -
>  static const struct go7007_board_info board_voyager = {
>  	.flags		 = 0,
>  	.sensor_flags	 = GO7007_SENSOR_656 |
> @@ -385,7 +380,7 @@ MODULE_FIRMWARE("go7007/go7007tv.bin");
>  static int saa7134_go7007_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
>  {
>  #if 0
> -	struct saa7134_go7007 *saa = to_state(sd);
> +	struct saa7134_go7007 *saa = container_of(sd, struct saa7134_go7007, sd);
>  	struct saa7134_dev *dev = saa->dev;
>  
>  	return saa7134_s_std_internal(dev, NULL, norm);
> -- 
> 2.33.1
> 
> 



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