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SubjectRe: Linux 2.6.15-rc2
Adrian Bunk wrote:

>On Tue, Nov 22, 2005 at 11:36:48PM -0500, Gene Heskett wrote:
>>Well, I just went thru it again, and turned off everything but the
>>cx8800 and ORv51132 stuffs, and now I get this at the and of the
>>'makeit' script I use here:
>>needs unknown symbol mt352_attach
>>needs unknown symbol nxt200x_attach
>>needs unknown symbol mt352_write
>>needs unknown symbol lgdt330x_attach
>>needs unknown symbol cx22702_attach
>Nice catch and thanks for your report.
>The bug is obvious. A possible patch is below (and at least
>drivers/media/video/saa7134/Makefile contains the same bug),
>but I'd really prfer getting rid of the -DHAVE_* stuff in the
>Makefiles and using Kconfig variables instead.
We need to keep the -DHAVE_FOO stuff there, in order to satisfy the
following requirements:

1) To allow the option of only selecting those frontends required by
specific dvb hardware, without forcing all modules to be loaded... This
feature is optional, and I implemented it in response to the demand from
some hybrid v4l/dvb device users, (and myself) Why force a driver to
load every frontend module if it isnt required by the hardware? --
apparantly the implementation was less than perfect. I had originally
intended for this to live in -mm for a bit, but when the merge window
came around, Mauro had sent it upstream before I had the chance to
create alternate patches for linus' tree.

2) (more importantly) To allow v4l-kernel cvs to retain backwards
compatability with older kernels..

I had originally tried to rename these to use the Kconfig variables, but
LKML people asked for it to be changed back.

Please do not remove this feature -- if it is broken, then we should try
to fix it, rather than remove it. If the specific frontend selection
isn't working, then I guess we can revert back to the old behavior where
every frontend is forced, but I would rather not.

>Would such a patch be accepted?
>>Cheers, Gene
If it fixes Gene's problem (a quick glance at his emails suggests that
it does) then:

Acked-by: Michael Krufky <>

although Sam Ravnborg's suggestion looks better to me. Unfortunately, I
will be unable to test this out on my system until After Thanksgiving
(on Friday) ...

>BTW: Please don't strip the Cc whenreplying to linux-kernel.
>--- linux-2.6.15-rc2/drivers/media/video/cx88/Makefile.old 2005-11-23 18:34:07.000000000 +0100
>+++ linux-2.6.15-rc2/drivers/media/video/cx88/Makefile 2005-11-23 18:34:18.000000000 +0100
>@@ -9,21 +9,21 @@
> EXTRA_CFLAGS += -I$(src)/..
> EXTRA_CFLAGS += -I$(srctree)/drivers/media/dvb/dvb-core
> EXTRA_CFLAGS += -I$(srctree)/drivers/media/dvb/frontends
>-ifneq ($(CONFIG_VIDEO_BUF_DVB),n)
>+ifneq ($(CONFIG_VIDEO_BUF_DVB),)
> endif
>-ifneq ($(CONFIG_DVB_CX22702),n)
>+ifneq ($(CONFIG_DVB_CX22702),)
> endif
>-ifneq ($(CONFIG_DVB_OR51132),n)
>+ifneq ($(CONFIG_DVB_OR51132),)
> endif
>-ifneq ($(CONFIG_DVB_LGDT330X),n)
>+ifneq ($(CONFIG_DVB_LGDT330X),)
> endif
>-ifneq ($(CONFIG_DVB_MT352),n)
>+ifneq ($(CONFIG_DVB_MT352),)
> endif
>-ifneq ($(CONFIG_DVB_NXT200X),n)
>+ifneq ($(CONFIG_DVB_NXT200X),)
> endif
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Michael Krufky

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