linux-kernel - arch/um/drivers/hostaudio_kern.c:348: undefined reference to `unregister_sound

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Message-ID: <202308270448.0vfBd2Rx-lkp@intel.com>
Date:   Sun, 27 Aug 2023 04:52:04 +0800
From:   kernel test robot <lkp@...el.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Jarkko Sakkinen <jarkko@...nel.org>
Subject: arch/um/drivers/hostaudio_kern.c:348: undefined reference to
 `unregister_sound_mixer'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   28f20a19294da7df158dfca259d0e2b5866baaf9
commit: 0f5d4a0b995faa6537c4de79973817a4f8da206a crypto: certs: fix FIPS selftest dependency
date:   7 months ago
config: um-randconfig-r021-20230826 (https://download.01.org/0day-ci/archive/20230827/202308270448.0vfBd2Rx-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230827/202308270448.0vfBd2Rx-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/202308270448.0vfBd2Rx-lkp@intel.com/

All errors (new ones prefixed by >>):

   /usr/bin/ld: warning: net/bpfilter/bpfilter_umh_blob.o: missing .note.GNU-stack section implies executable stack
   /usr/bin/ld: NOTE: This behaviour is deprecated and will be removed in a future version of the linker
   /usr/bin/ld: warning: .tmp_vmlinux.kallsyms1 has a LOAD segment with RWX permissions
   /usr/bin/ld: arch/um/drivers/hostaudio_kern.o: in function `hostaudio_cleanup_module':
>> arch/um/drivers/hostaudio_kern.c:348: undefined reference to `unregister_sound_mixer'
>> /usr/bin/ld: arch/um/drivers/hostaudio_kern.c:349: undefined reference to `unregister_sound_dsp'
   /usr/bin/ld: arch/um/drivers/hostaudio_kern.o: in function `hostaudio_init_module':
>> arch/um/drivers/hostaudio_kern.c:329: undefined reference to `register_sound_dsp'
>> /usr/bin/ld: arch/um/drivers/hostaudio_kern.c:335: undefined reference to `register_sound_mixer'
   /usr/bin/ld: arch/um/drivers/hostaudio_kern.c:339: undefined reference to `unregister_sound_dsp'
   collect2: error: ld returned 1 exit status


vim +348 arch/um/drivers/hostaudio_kern.c

^1da177e4c3f41 Linus Torvalds 2005-04-16  321  
^1da177e4c3f41 Linus Torvalds 2005-04-16  322  static int __init hostaudio_init_module(void)
^1da177e4c3f41 Linus Torvalds 2005-04-16  323  {
b51d23e4e9fea6 Dan Streetman  2015-06-17  324  	kernel_param_lock(THIS_MODULE);
^1da177e4c3f41 Linus Torvalds 2005-04-16  325  	printk(KERN_INFO "UML Audio Relay (host dsp = %s, host mixer = %s)\n",
^1da177e4c3f41 Linus Torvalds 2005-04-16  326  	       dsp, mixer);
b51d23e4e9fea6 Dan Streetman  2015-06-17  327  	kernel_param_unlock(THIS_MODULE);
^1da177e4c3f41 Linus Torvalds 2005-04-16  328  
^1da177e4c3f41 Linus Torvalds 2005-04-16 @329  	module_data.dev_audio = register_sound_dsp(&hostaudio_fops, -1);
^1da177e4c3f41 Linus Torvalds 2005-04-16  330  	if (module_data.dev_audio < 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16  331  		printk(KERN_ERR "hostaudio: couldn't register DSP device!\n");
^1da177e4c3f41 Linus Torvalds 2005-04-16  332  		return -ENODEV;
^1da177e4c3f41 Linus Torvalds 2005-04-16  333  	}
^1da177e4c3f41 Linus Torvalds 2005-04-16  334  
^1da177e4c3f41 Linus Torvalds 2005-04-16 @335  	module_data.dev_mixer = register_sound_mixer(&hostmixer_fops, -1);
^1da177e4c3f41 Linus Torvalds 2005-04-16  336  	if (module_data.dev_mixer < 0) {
^1da177e4c3f41 Linus Torvalds 2005-04-16  337  		printk(KERN_ERR "hostmixer: couldn't register mixer "
^1da177e4c3f41 Linus Torvalds 2005-04-16  338  		       "device!\n");
^1da177e4c3f41 Linus Torvalds 2005-04-16  339  		unregister_sound_dsp(module_data.dev_audio);
^1da177e4c3f41 Linus Torvalds 2005-04-16  340  		return -ENODEV;
^1da177e4c3f41 Linus Torvalds 2005-04-16  341  	}
^1da177e4c3f41 Linus Torvalds 2005-04-16  342  
^1da177e4c3f41 Linus Torvalds 2005-04-16  343  	return 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16  344  }
^1da177e4c3f41 Linus Torvalds 2005-04-16  345  
^1da177e4c3f41 Linus Torvalds 2005-04-16  346  static void __exit hostaudio_cleanup_module (void)
^1da177e4c3f41 Linus Torvalds 2005-04-16  347  {
^1da177e4c3f41 Linus Torvalds 2005-04-16 @348  	unregister_sound_mixer(module_data.dev_mixer);
^1da177e4c3f41 Linus Torvalds 2005-04-16 @349  	unregister_sound_dsp(module_data.dev_audio);
^1da177e4c3f41 Linus Torvalds 2005-04-16  350  }
^1da177e4c3f41 Linus Torvalds 2005-04-16  351  

:::::: The code at line 348 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@...970.osdl.org>
:::::: CC: Linus Torvalds <torvalds@...970.osdl.org>

-- 
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https://github.com/intel/lkp-tests/wiki