Video For Linux on ppc32 in kernel 2.6

Video For Linux on ppc32 in kernel 2.6

[Olaf Hering]

CONFIG_VIDEO_DEV triggers CONFIG_VIDEO_BUF. If compiled as module,
video-buf.c wants clear_user_page(). This is a define on most archs
(maps to clear_page()), on ppc32 it is an unexported function. This
leads to unresolved symbols.

Should clear_user_page() be exported or should
drivers/media/video/video-buf.c:videobuf_vm_nopage() do something else
to achive similar results?

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Re: Video For Linux on ppc32 in kernel 2.6

[Colin Leroy]

Hi,

> CONFIG_VIDEO_DEV triggers CONFIG_VIDEO_BUF. If compiled as module,
> video-buf.c wants clear_user_page(). This is a define on most archs
> (maps to clear_page()), on ppc32 it is an unexported function. This
> leads to unresolved symbols.


It's been fixed in BenH's tree since a few weeks.
(
http://ppc.bkbits.net:8080/linuxppc-2.5-benh/diffs/arch/ppc/kernel/ppc_ksyms.c@1.72 )
--
Colin
Ne disez pas disez, mais disez dites


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Re: Video For Linux on ppc32 in kernel 2.6

[Benjamin Herrenschmidt]

On Wed, 2004-02-04 at 21:24, Colin Leroy wrote:
> Hi,
>
> > CONFIG_VIDEO_DEV triggers CONFIG_VIDEO_BUF. If compiled as module,
> > video-buf.c wants clear_user_page(). This is a define on most archs
> > (maps to clear_page()), on ppc32 it is an unexported function. This
> > leads to unresolved symbols.
>
>
> It's been fixed in BenH's tree since a few weeks.
> (
> http://ppc.bkbits.net:8080/linuxppc-2.5-benh/diffs/arch/ppc/kernel/ppc_ksyms.c@1.72 )

Yup, hopefully, if I don't forget, I'll get that in 2.6.3

Ben.


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Re: Video For Linux on ppc32 in kernel 2.6

[Mich Lanners]

Olaf,

On   4 Feb, this message from Olaf Hering echoed through cyberspace:
> CONFIG_VIDEO_DEV triggers CONFIG_VIDEO_BUF. If compiled as module,
> video-buf.c wants clear_user_page(). This is a define on most archs
> (maps to clear_page()), on ppc32 it is an unexported function. This
> leads to unresolved symbols.
[snip]

Thanks for pointing this out; one less problem for me to worry about
should I ever get to update planb :-)

Cheers

Michel

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Re: Video For Linux on ppc32 in kernel 2.6

[Olaf Hering]

 On Wed, Feb 04, Benjamin Herrenschmidt wrote:

> On Wed, 2004-02-04 at 21:24, Colin Leroy wrote:
> > Hi,
> >
> > > CONFIG_VIDEO_DEV triggers CONFIG_VIDEO_BUF. If compiled as module,
> > > video-buf.c wants clear_user_page(). This is a define on most archs
> > > (maps to clear_page()), on ppc32 it is an unexported function. This
> > > leads to unresolved symbols.
> >
> >
> > It's been fixed in BenH's tree since a few weeks.
> > (
> > http://ppc.bkbits.net:8080/linuxppc-2.5-benh/diffs/arch/ppc/kernel/ppc_ksyms.c@1.72 )
>
> Yup, hopefully, if I don't forget, I'll get that in 2.6.3

its also required on ppc64.

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