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

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Date: Wed, 14 Feb 2024 10:33:23 +0000
From: Sakari Ailus <sakari.ailus@...ux.intel.com>
To: Hans Verkuil <hverkuil-cisco@...all.nl>
Cc: Arnd Bergmann <arnd@...nel.org>, 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

Hi Hans, Arnd,

On Wed, Feb 14, 2024 at 11:24:41AM +0100, Hans Verkuil wrote:
> Arnd, Sakari,
> 
> Is this something that needs to go to v6.8? Or just v6.9?
> 
> Do we need a Fixes tag?

The patch seems to be related to this:
<URL:https://lore.kernel.org/oe-kbuild-all/202402130955.f6uxzdCA-lkp@intel.com/>.

So most likely yes, and Cc: stable, too.

> 
> 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
> 

-- 
Regards,

Sakari Ailus