Hi Takashi, patches.drivers/alsa-hda-reboot-notify changes the kabi signatures (compared to the 11.2 GA kernel) because it adds a member to struct hda_codec_ops. It changes lots of snd_hda_*() symbols and query_amp_caps(), I checked and none of the KMPs in the distro depends on these, not even alsa-driver-kmp from multimedia:audio:KMP. Thus, I think it should be safe to ignore this change, what do you think? Full list of the changed symbols is attached. Michal query_amp_caps snd_hda_add_codec_preset snd_hda_add_new_ctls snd_hda_add_vmaster snd_hda_attach_beep_device snd_hda_build_controls snd_hda_build_pcms snd_hda_bus_new snd_hda_bus_reboot_notify snd_hda_ch_mode_get snd_hda_ch_mode_info snd_hda_ch_mode_put snd_hda_check_amp_list_power snd_hda_check_board_codec_sid_config snd_hda_check_board_config snd_hda_codec_amp_read snd_hda_codec_amp_stereo snd_hda_codec_amp_update snd_hda_codec_cleanup_stream snd_hda_codec_configure snd_hda_codec_get_pincfg snd_hda_codec_new snd_hda_codec_read snd_hda_codec_resume_amp snd_hda_codec_resume_cache snd_hda_codec_set_pincfg snd_hda_codec_setup_stream snd_hda_codec_write snd_hda_codec_write_cache snd_hda_create_spdif_in_ctls snd_hda_create_spdif_out_ctls snd_hda_create_spdif_share_sw snd_hda_ctl_add snd_hda_delete_codec_preset snd_hda_detach_beep_device snd_hda_find_mixer_ctl snd_hda_get_bool_hint snd_hda_get_connections snd_hda_get_hint snd_hda_get_sub_nodes snd_hda_input_mux_put snd_hda_is_supported_format snd_hda_load_patch snd_hda_multi_out_analog_cleanup snd_hda_multi_out_analog_open snd_hda_multi_out_analog_prepare snd_hda_multi_out_dig_cleanup snd_hda_multi_out_dig_close snd_hda_multi_out_dig_open snd_hda_multi_out_dig_prepare snd_hda_override_amp_caps snd_hda_parse_generic_codec snd_hda_parse_pin_def_config snd_hda_power_down snd_hda_power_up snd_hda_query_pin_caps snd_hda_queue_unsol_event snd_hda_resume snd_hda_sequence_write snd_hda_sequence_write_cache snd_hda_set_vmaster_tlv snd_hda_suspend