tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-5.4 head: 1e78c85f6eec2ef1bb91ad01af8ac649e1e75d44 commit: f87316987f60a7da8edf9814dbb4c0ed4dd49406 [46/53] ALSA: hda/realtek: Convert to cdev-variant of mic-mute LED controls config: x86_64-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/c... git remote add sashal-linux-stable https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git git fetch --no-tags sashal-linux-stable queue-5.4 git checkout f87316987f60a7da8edf9814dbb4c0ed4dd49406 # save the attached .config to linux build tree make W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from sound/pci/hda/patch_conexant.c:221: sound/pci/hda/thinkpad_helper.c: In function 'hda_fixup_thinkpad_acpi': 38 | snd_hda_gen_add_micmute_led_cdev(codec, NULL); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | snd_hda_gen_add_micmute_led cc1: some warnings being treated as errors vim +38 sound/pci/hda/thinkpad_helper.c 27 28 static void hda_fixup_thinkpad_acpi(struct hda_codec *codec, 29 const struct hda_fixup *fix, int action) 30 { 31 struct hda_gen_spec *spec = codec->spec; 32 33 if (action == HDA_FIXUP_ACT_PROBE) { 34 if (!is_thinkpad(codec)) 35 return; 36 old_vmaster_hook = spec->vmaster_mute.hook; 37 spec->vmaster_mute.hook = update_tpacpi_mute_led; 39 } 40 } 41 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org