linux-kernel - Re: [PATCH] media: v4l: marvell: select CONFIG_V4L2

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Date: Wed, 14 Feb 2024 11:24:41 +0100
From: Hans Verkuil <hverkuil-cisco@...all.nl>
To: Arnd Bergmann <arnd@...nel.org>,
 Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc: Arnd Bergmann <arnd@...db.de>, linux-media@...r.kernel.org,
 linux-kernel@...r.kernel.org, Mauro Carvalho Chehab <mchehab@...nel.org>
Subject: Re: [PATCH] media: v4l: marvell: select CONFIG_V4L2_ASYNC where
 needed

Arnd, Sakari,

Is this something that needs to go to v6.8? Or just v6.9?

Do we need a Fixes tag?

Regards,

	Hans

On 13/02/2024 10:55, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> Drivers that call v4l2_async_nf_init() need to select the corresponding
> Kconfig symbol:
> 
> ERROR: modpost: "v4l2_async_nf_init" [drivers/media/platform/marvell/cafe_ccic.ko] undefined!
> ERROR: modpost: "__v4l2_async_nf_add_i2c" [drivers/media/platform/marvell/cafe_ccic.ko] undefined!
> ERROR: modpost: "v4l2_async_nf_unregister" [drivers/media/platform/marvell/mcam-core.ko] undefined!
> ERROR: modpost: "v4l2_async_nf_init" [drivers/media/platform/marvell/mmp_camera.ko] undefined!
> ERROR: modpost: "__v4l2_async_nf_add_fwnode_remote" [drivers/media/platform/marvell/mmp_camera.ko] undefined!
> 
> I checked all v4l2 drivers to see if anything else has the same
> bug, but these two appear to be the only ones.
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  drivers/media/platform/marvell/Kconfig | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/media/platform/marvell/Kconfig b/drivers/media/platform/marvell/Kconfig
> index d6499ffe30e8..d31f4730f2a3 100644
> --- a/drivers/media/platform/marvell/Kconfig
> +++ b/drivers/media/platform/marvell/Kconfig
> @@ -7,6 +7,7 @@ config VIDEO_CAFE_CCIC
>  	depends on V4L_PLATFORM_DRIVERS
>  	depends on PCI && I2C && VIDEO_DEV
>  	depends on COMMON_CLK
> +	select V4L2_ASYNC
>  	select VIDEO_OV7670 if MEDIA_SUBDRV_AUTOSELECT && VIDEO_CAMERA_SENSOR
>  	select VIDEOBUF2_VMALLOC
>  	select VIDEOBUF2_DMA_CONTIG
> @@ -24,6 +25,7 @@ config VIDEO_MMP_CAMERA
>  	depends on COMMON_CLK
>  	select VIDEO_OV7670 if MEDIA_SUBDRV_AUTOSELECT && VIDEO_CAMERA_SENSOR
>  	select I2C_GPIO
> +	select V4L2_ASYNC
>  	select VIDEOBUF2_VMALLOC
>  	select VIDEOBUF2_DMA_CONTIG
>  	select VIDEOBUF2_DMA_SG