Re: Linux 2.6.15-rc2

From: Michael Krufky (mkrufky_at_m1k.net)
Date: 11/23/05

  • Next message: Andrew Morton: "Re: Christmas list for the kernel" 
    Date:	Tue, 22 Nov 2005 20:56:30 -0500
To: Gene Heskett <gene.heskett@verizon.net>

    Gene Heskett wrote:

    >WARNING:/lib/modules/2.6.15-rc2/kernel/drivers/media/video/cx88/cx88-dvb
    >.ko needs unknown symbol nxt200x_attach.
    >
    Gene has sent me a copy of his .config ... here are the relevant lines:

    [snip]

    CONFIG_VIDEO_CX88=m
    CONFIG_VIDEO_CX88_DVB=m
    # CONFIG_VIDEO_CX88_DVB_ALL_FRONTENDS is not set
    # CONFIG_VIDEO_CX88_DVB_MT352 is not set
    CONFIG_VIDEO_CX88_DVB_OR51132=m
    # CONFIG_VIDEO_CX88_DVB_CX22702 is not set
    # CONFIG_VIDEO_CX88_DVB_LGDT330X is not set
    # CONFIG_VIDEO_CX88_DVB_NXT200X is not set

    [snip]

    CONFIG_DVB_NXT2002=m
    # CONFIG_DVB_NXT200X is not set
    # CONFIG_DVB_OR51211 is not set
    CONFIG_DVB_OR51132=m
    # CONFIG_DVB_BCM3510 is not set
    CONFIG_DVB_LGDT330X=m

    [snip]

    A configuration like this should have compiled cx88-dvb without any
    references to nxt200x at all.

    Gene, do you have v4l-kernel cvs installed on top of kernel 2.6.15-rc2?
    Unless I'm missing something, it seems that this is the only way that
    you could have nxt200x support in cx88-dvb without having built the
    nxt200x module itself. The v4l-kernel cvs build environment has nxt200x
    enabled by default when building against kernels 2.6.15 and later.

    If this is true, then you can either disable nxt200x in
    v4l-kernel/v4l/Makefile, or re-build the cvs modules using the dvb + v4l
    merged-tree build environment.
    http://linuxtv.org/v4lwiki/index.php/How_to_build_from_CVS

    This would, in effect, give the same result as if you had selected
    CONFIG_VIDEO_CX88_DVB_ALL_FRONTENDS (selected by default in Kconfig)

    ...or maybe you initially started a kernel build with the nxt200x module
    selected, then stopped the compile, unselected nxt200x, and continued
    the build process without cleaning in between, and after cx88-dvb had
    already been built? Hmm... I guess that might be a bit far-fetched...
    but to be sure, you can wipe out your kernel tree and rebuild it again
    from scratch using the same .config .

    If my assumption above is incorrect, then this will need to be looked
    into a bit deeper. Please, let me know.

    Regards,

    Michael Krufky
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