linux-kernel - Fwd: cx23885-dvb.c:undefined reference to `tda18271

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Message-ID: <CA+MoWDrGGE4X9aX0=_iaacXUar17fb1B+CR5VcsPAwLFFiPCCA@mail.gmail.com>
Date:	Mon, 24 Mar 2014 16:34:17 +0100
From:	Peter Senna Tschudin <peter.senna@...il.com>
To:	linux-media <linux-media@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	kbuild-all@...org
Subject: Fwd: cx23885-dvb.c:undefined reference to `tda18271_attach'

Hi,

I'm being blamed for some bugs for more than one year, and this
weekend I was able to reproduce the error for the first time. I have
the impression that the issue is related to Kconfig because when
compiling the Kernel for x86(not x86_64), and
when:
CONFIG_VIDEO_CX23885=y

and

CONFIG_MEDIA_TUNER_TDA18271=m

the build fails as the tuner code was compiled as a module when it
should have been compiled as part of the Kernel. On the Kconfig file
drivers/media/pci/cx23885/Kconfig:
config VIDEO_CX23885
        tristate "Conexant cx23885 (2388x successor) support"
        ...
        select MEDIA_TUNER_TDA18271 if MEDIA_SUBDRV_AUTOSELECT

which I think is the problem. Can I just remove this 'if
MEDIA_SUBDRV_AUTOSELECT'? Or what is the correct way of telling
Kconfig to set CONFIG_MEDIA_TUNER_TDA18271 based on the value of
CONFIG_VIDEO_CX23885?

There are at least 6 similar cases which I'm willing to send patches.

Thank you,

Peter
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