linux-kernel - Re: [alsa-devel] ERROR: "isa_io_base" [sound/pci/vx222/snd-vx222.ko] undefined!

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Date:	Mon, 07 Mar 2016 11:06:08 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Tomi Valkeinen <tomi.valkeinen@...com>
Cc:	kbuild test robot <fengguang.wu@...el.com>,
	Nicolai Stange <nicstange@...il.com>,
	<alsa-devel@...a-project.org>, Michal Simek <monstr@...str.eu>,
	kbuild-all@...org, linux-kernel@...r.kernel.org
Subject: Re: [alsa-devel] ERROR: "isa_io_base"	[sound/pci/vx222/snd-vx222.ko] undefined!

On Mon, 07 Mar 2016 09:20:37 +0100,
Tomi Valkeinen wrote:
> 
> On 06/03/16 14:38, kbuild test robot wrote:
> > Hi Nicolai,
> > 
> > FYI, the error/warning still remains.
> > 
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head:   67944024c1cdd897e49a09b0d6af3ea38d1388ca
> > commit: 48fd8ecf29e3c1199432e173858f5ca4bc529738 framebuffer: disable vgacon on microblaze arch
> > date:   7 months ago
> > config: microblaze-allmodconfig (attached as .config)
> > reproduce:
> >         wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
> >         chmod +x ~/bin/make.cross
> >         git checkout 48fd8ecf29e3c1199432e173858f5ca4bc529738
> >         # save the attached .config to linux build tree
> >         make.cross ARCH=microblaze 
> > 
> > All errors (new ones prefixed by >>):
> > 
> >>> ERROR: "isa_io_base" [sound/pci/vx222/snd-vx222.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/trident/snd-trident.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-via82xx.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-via82xx-modem.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-sonicvibes.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-maestro3.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-fm801.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-es1968.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-es1938.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-ens1371.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-ens1370.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-cmipci.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-azt3328.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/snd-als300.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/riptide/snd-riptide.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/pcxhr/snd-pcxhr.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/oxygen/snd-oxygen-lib.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/lx6464es/snd-lx6464es.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/ice1712/snd-ice1724.ko] undefined!
> >>> ERROR: "isa_io_base" [sound/pci/ice1712/snd-ice1712.ko] undefined!
> 
> I didn't look at this closely, but sounds like disabling vgacon on
> microblaze made sound drivers fail because they or microblaze does not
> enable something in the kernel config.

Looking at this shortly, the reason is that EXPORT_SYMBOL() of
isa_io_base is missing for microblaze.  I don't know, though, why the
mentioned commit triggers the bug, too...


Takashi