Hi Perry,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on asoc/for-next]
[also build test ERROR on v5.10-rc2 next-20201103]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Perry-Yuan/ASoC-rt715-add-Mic-Mute-LED-control-support/20201103-210037
base:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
config: m68k-randconfig-r021-20201103 (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/7907f123e41159e71a0151518d1018dce3c5656d
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Perry-Yuan/ASoC-rt715-add-Mic-Mute-LED-control-support/20201103-210037
        git checkout 7907f123e41159e71a0151518d1018dce3c5656d
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   m68k-linux-ld: sound/soc/codecs/rt715.o: in function `rt715_micmute_led_mode_put':
>> sound/soc/codecs/rt715.c:248: undefined reference to `ledtrig_audio_set'
   m68k-linux-ld: sound/soc/codecs/rt715.o: in function `rt715_mic_mute_led_mode_get':
   sound/soc/codecs/rt715.c:233: undefined reference to `ledtrig_audio_set'

vim +248 sound/soc/codecs/rt715.c

   238	
   239	static int rt715_micmute_led_mode_put(struct snd_kcontrol *kcontrol,
   240	      struct snd_ctl_elem_value *ucontrol)
   241	{
   242	    struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
   243	    struct rt715_priv *rt715 = snd_soc_component_get_drvdata(component);
   244	    int led_mode = ucontrol->value.integer.value[0];
   245	
   246	    rt715->micmute_led = led_mode;
   247	#if IS_ENABLED(CONFIG_LEDS_TRIGGER_AUDIO)
 > 248	    ledtrig_audio_set(LED_AUDIO_MICMUTE,
   249	               rt715->micmute_led ? LED_ON : LED_OFF);
   250	#endif
   251	  return 0;
   252	}
   253	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org