Re: [PATCH] ALSA: hda/conexant: Fix microphone mute after power-on reboot

Hi dengxiang,

kernel test robot noticed the following build warnings:

[auto build test WARNING on tiwai-sound/for-next]
[also build test WARNING on tiwai-sound/for-linus linus/master v7.2-rc7 next-20260811]
[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#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/dengxiang/ALSA-hda-conexant-Fix-microphone-mute-after-power-on-reboot/20260813-035114
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next
patch link:    https://lore.kernel.org/r/20260701065533.72517-1-os_dengxiang82%40126.com
patch subject: [PATCH] ALSA: hda/conexant: Fix microphone mute after power-on reboot
config: powerpc-allmodconfig (https://download.01.org/0day-ci/archive/20260813/[email protected]/config)
compiler: powerpc64-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260813/[email protected]/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 <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All warnings (new ones prefixed by >>):

   sound/hda/codecs/conexant.c: In function 'cxt_fixed_mic_boost':
>> sound/hda/codecs/conexant.c:1198:31: warning: unused variable 'spec' [-Wunused-variable]
    1198 |         struct conexant_spec *spec = codec->spec;
         |                               ^~~~


vim +/spec +1198 sound/hda/codecs/conexant.c

  1195	
  1196	static void cxt_fixed_mic_boost(struct hda_codec *codec, hda_nid_t node_id)
  1197	{
> 1198		struct conexant_spec *spec = codec->spec;
  1199		unsigned int value = 0;
  1200	
  1201		value = snd_hda_codec_read(codec, node_id, 0, AC_VERB_GET_AMP_GAIN_MUTE, 0);
  1202		snd_hda_codec_amp_stereo(codec, node_id, HDA_INPUT, 0, HDA_AMP_VOLMASK, value);
  1203	}
  1204	

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