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Date: Mon, 05 Sep 2011 01:24:09 +0100
From: Chris Rankin <rankincj@yahoo.com>
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To: Antti Palosaari <crope@iki.fi>
CC: Mauro Carvalho Chehab <mchehab@redhat.com>,
	linux-media@vger.kernel.org
Subject: Re: ERROR: "em28xx_add_into_devlist" [drivers/media/video/em28xx/em28xx.ko]
 undefined!
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On 05/09/11 00:46, Antti Palosaari wrote:
> Moikka,
> Current linux-media make gives error. Any idea what's wrong?
>
>
> Kernel: arch/x86/boot/bzImage is ready (#1)
> Building modules, stage 2.
> MODPOST 1907 modules
> ERROR: "em28xx_add_into_devlist" [drivers/media/video/em28xx/em28xx.ko] undefined!
> WARNING: modpost: Found 2 section mismatch(es).
> To see full details build your kernel with:
> 'make CONFIG_DEBUG_SECTION_MISMATCH=y'
> make[1]: *** [__modpost] Error 1
> make: *** [modules] Error 2

I think I see what's happened here. An extra reference to 
em28xx_add_into_devlist() has been added to em28xx_init_dev() at line 2888. This 
reference can be deleted because em28xx_init_extension() has been modified to 
add the struct em28xx to the devlist and then pass it to each extension's init() 
function all as a single operation.

Cheers,
Chris