Hi Stefan, kernel test robot noticed the following build warnings: [auto build test WARNING on next-20230919] [cannot apply to tiwai-sound/for-next tiwai-sound/for-linus v6.6-rc2 v6.6-rc1 v6.5 linus/master v6.6-rc2] [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/Stefan-Binding/ALSA-hda-cs35l41-Support-mute-notifications-for-CS35L41-HDA/20230920-005359 base: next-20230919 patch link: https://lore.kernel.org/r/20230919142240.467682-2-sbinding%40opensource.cirrus.com patch subject: [PATCH v3 1/2] ALSA: hda: cs35l41: Support mute notifications for CS35L41 HDA config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230920/202309200216.1V4V854z-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230920/202309200216.1V4V854z-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309200216.1V4V854z-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): sound/pci/hda/patch_realtek.c: In function 'comp_acpi_device_notify': sound/pci/hda/patch_realtek.c:6718:52: error: implicit declaration of function 'acpi_device_handle'; did you mean 'acpi_fwnode_handle'? [-Werror=implicit-function-declaration] 6718 | spec->comps[i].acpi_notify(acpi_device_handle(spec->comps[i].adev), event, | ^~~~~~~~~~~~~~~~~~ | acpi_fwnode_handle sound/pci/hda/patch_realtek.c:6718:52: warning: passing argument 1 of 'spec->comps[i].acpi_notify' makes pointer from integer without a cast [-Wint-conversion] 6718 | spec->comps[i].acpi_notify(acpi_device_handle(spec->comps[i].adev), event, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | int sound/pci/hda/patch_realtek.c:6718:52: note: expected 'acpi_handle' {aka 'void *'} but argument is of type 'int' sound/pci/hda/patch_realtek.c: At top level: >> sound/pci/hda/patch_realtek.c:6708:13: warning: 'comp_acpi_device_notify' defined but not used [-Wunused-function] 6708 | static void comp_acpi_device_notify(acpi_handle handle, u32 event, void *data) | ^~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/comp_acpi_device_notify +6708 sound/pci/hda/patch_realtek.c 6707 > 6708 static void comp_acpi_device_notify(acpi_handle handle, u32 event, void *data) 6709 { 6710 struct hda_codec *cdc = data; 6711 struct alc_spec *spec = cdc->spec; 6712 int i; 6713 6714 codec_info(cdc, "ACPI Notification %d\n", event); 6715 6716 for (i = 0; i < HDA_MAX_COMPONENTS; i++) { 6717 if (spec->comps[i].dev && spec->comps[i].acpi_notify) > 6718 spec->comps[i].acpi_notify(acpi_device_handle(spec->comps[i].adev), event, 6719 spec->comps[i].dev); 6720 } 6721 } 6722 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki