linux-kernel - Re: ld.lld: error: undefined symbol: iosf_mbi

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Message-ID: <20240717202806.GA728411@thelio-3990X>
Date: Wed, 17 Jul 2024 13:28:06 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Cc: kernel test robot <lkp@...el.com>, llvm@...ts.linux.dev,
	oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Takashi Iwai <tiwai@...e.de>,
	Kai Vehmanen <kai.vehmanen@...ux.intel.com>,
	Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>,
	Bard Liao <bard.liao@...el.com>
Subject: Re: ld.lld: error: undefined symbol: iosf_mbi_available

On Wed, Jul 17, 2024 at 01:43:35PM +0200, Pierre-Louis Bossart wrote:
> 
> 
> On 7/16/24 01:07, kernel test robot wrote:
> > tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> > head:   3e7819886281e077e82006fe4804b0d6b0f5643b
> > commit: 8d4ba1be3d2257606e04aff412829d8972670750 ASoC: SOF: pci: split PCI into different drivers
> > date:   3 years, 4 months ago
> 
> This doesn't seem to be a problem on the latest code? was it intentional
> to report a problem on such an old commit?

It's still reproducible at commit 8b0f0bb27c32 ("Merge tag
'fs_for_v6.11-rc1' of
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs") for me,
using either LLVM or GCC with the configuration linked below:

  ld.lld: error: undefined symbol: iosf_mbi_available
  >>> referenced by atom.c
  >>>               sound/soc/sof/intel/atom.o:(atom_machine_select) in archive vmlinux.a

  ld.lld: error: undefined symbol: iosf_mbi_read
  >>> referenced by atom.c
  >>>               sound/soc/sof/intel/atom.o:(atom_machine_select) in archive vmlinux.a

  .../gcc/14.1.0/bin/i386-linux-ld: sound/soc/sof/intel/atom.o: in function `atom_machine_select':
  atom.c:(.text+0x1b9): undefined reference to `iosf_mbi_available'
  .../gcc/14.1.0/bin/i386-linux-ld: atom.c:(.text+0x1e3): undefined reference to `iosf_mbi_read'

Cheers,
Nathan

> > config: i386-buildonly-randconfig-004-20240716 (https://download.01.org/0day-ci/archive/20240716/202407160704.zpdhJ8da-lkp@intel.com/config)
> > compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
> > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240716/202407160704.zpdhJ8da-lkp@intel.com/reproduce)
> > 
> > If you fix the issue in a separate patch/commit (i.e. not just a new version of
> > the same patch/commit), kindly add following tags
> > | Reported-by: kernel test robot <lkp@...el.com>
> > | Closes: https://lore.kernel.org/oe-kbuild-all/202407160704.zpdhJ8da-lkp@intel.com/
> > 
> > All errors (new ones prefixed by >>):
> > 
> >>> ld.lld: error: undefined symbol: iosf_mbi_available
> >    >>> referenced by byt.c
> >    >>>               soc/sof/intel/byt.o:(byt_machine_select) in archive sound/built-in.a
> > --
> >>> ld.lld: error: undefined symbol: iosf_mbi_read
> >    >>> referenced by byt.c
> >    >>>               soc/sof/intel/byt.o:(byt_machine_select) in archive sound/built-in.a
> > 
>