[tiwai-sound:test/snd_ctl_remove-lock-fix 34/38] drivers/staging/greybus/audio_codec.c:810:26: warning: variable 'card' set but not used
tree: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git test/snd_ctl_remove-lock-fix head: 6dd4ae925ae5b90ccfbcb11dce06fd505cc18bc8 commit: 812cf704dac9f2f275d7bc53818fcccde62dcef8 [34/38] staging: greybus: Avoid abusing controls_rwsem config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230705/202307051355.BQPsIfxL-lkp@i...) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce: (https://download.01.org/0day-ci/archive/20230705/202307051355.BQPsIfxL-lkp@i...)
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@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202307051355.BQPsIfxL-lkp@intel.com/
All warnings (new ones prefixed by >>):
drivers/staging/greybus/audio_codec.c: In function 'gbaudio_register_module':
drivers/staging/greybus/audio_codec.c:810:26: warning: variable 'card' set but not used [-Wunused-but-set-variable]
810 | struct snd_card *card; | ^~~~ drivers/staging/greybus/audio_codec.c: In function 'gbaudio_unregister_module':
drivers/staging/greybus/audio_codec.c:938:26: warning: unused variable 'card' [-Wunused-variable]
938 | struct snd_card *card = comp->card->snd_card; | ^~~~
vim +/card +810 drivers/staging/greybus/audio_codec.c
64a7e2cceb75cca drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 805 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 806 int gbaudio_register_module(struct gbaudio_module_info *module) d3d2af51f9c2f29 drivers/staging/greybus/audio-codec.c Vaibhav Agarwal 2015-11-23 807 { 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 808 int ret; ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 809 struct snd_soc_component *comp; 2b8c2b51000e3d0 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-04-21 @810 struct snd_card *card; ac40b4d1e409971 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 811 struct gbaudio_jack *jack = NULL; d3d2af51f9c2f29 drivers/staging/greybus/audio-codec.c Vaibhav Agarwal 2015-11-23 812 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 813 if (!gbcodec) { 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 814 dev_err(module->dev, "GB Codec not yet probed\n"); 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 815 return -EAGAIN; d3d2af51f9c2f29 drivers/staging/greybus/audio-codec.c Vaibhav Agarwal 2015-11-23 816 } d3d2af51f9c2f29 drivers/staging/greybus/audio-codec.c Vaibhav Agarwal 2015-11-23 817 ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 818 comp = gbcodec->component; ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 819 card = comp->card->snd_card; 2b8c2b51000e3d0 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-04-21 820 812cf704dac9f2f drivers/staging/greybus/audio_codec.c Takashi Iwai 2023-07-04 821 mutex_lock(&gbcodec->register_mutex); d3d2af51f9c2f29 drivers/staging/greybus/audio-codec.c Vaibhav Agarwal 2015-11-23 822 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 823 if (module->num_dais) { 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 824 dev_err(gbcodec->dev, 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 825 "%d:DAIs not supported via gbcodec driver\n", 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 826 module->num_dais); 812cf704dac9f2f drivers/staging/greybus/audio_codec.c Takashi Iwai 2023-07-04 827 mutex_unlock(&gbcodec->register_mutex); 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 828 return -EINVAL; d3d2af51f9c2f29 drivers/staging/greybus/audio-codec.c Vaibhav Agarwal 2015-11-23 829 } d3d2af51f9c2f29 drivers/staging/greybus/audio-codec.c Vaibhav Agarwal 2015-11-23 830 ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 831 ret = gbaudio_init_jack(module, comp->card); 64a7e2cceb75cca drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 832 if (ret) { 812cf704dac9f2f drivers/staging/greybus/audio_codec.c Takashi Iwai 2023-07-04 833 mutex_unlock(&gbcodec->register_mutex); 64a7e2cceb75cca drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 834 return ret; 64a7e2cceb75cca drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 835 } 64a7e2cceb75cca drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 836 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 837 if (module->dapm_widgets) ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 838 snd_soc_dapm_new_controls(&comp->dapm, module->dapm_widgets, 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 839 module->num_dapm_widgets); 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 840 if (module->controls) ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 841 snd_soc_add_component_controls(comp, module->controls, 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 842 module->num_controls); 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 843 if (module->dapm_routes) ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 844 snd_soc_dapm_add_routes(&comp->dapm, module->dapm_routes, 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 845 module->num_dapm_routes); 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 846 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 847 /* card already instantiated, create widgets here only */ ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 848 if (comp->card->instantiated) { 620d28440c10b8f drivers/staging/greybus/audio_codec.c Deepak R Varma 2020-10-22 849 gbaudio_dapm_link_component_dai_widgets(comp->card, &comp->dapm); 64a7e2cceb75cca drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 850 #ifdef CONFIG_SND_JACK 461ab8077d573d4 drivers/staging/greybus/audio_codec.c Gioh Kim 2017-02-09 851 /* 461ab8077d573d4 drivers/staging/greybus/audio_codec.c Gioh Kim 2017-02-09 852 * register jack devices for this module 461ab8077d573d4 drivers/staging/greybus/audio_codec.c Gioh Kim 2017-02-09 853 * from codec->jack_list 461ab8077d573d4 drivers/staging/greybus/audio_codec.c Gioh Kim 2017-02-09 854 */ ac40b4d1e409971 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 855 list_for_each_entry(jack, &module->jack_list, list) { ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 856 snd_device_register(comp->card->snd_card, ac40b4d1e409971 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 857 jack->jack.jack); 64a7e2cceb75cca drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 858 } 64a7e2cceb75cca drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 859 #endif bb9986ef6b311fb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-05-04 860 } 64a7e2cceb75cca drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 861 c188fdc8176a8cb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-05-04 862 mutex_lock(&gbcodec->lock); 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 863 list_add(&module->list, &gbcodec->module_list); c188fdc8176a8cb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-05-04 864 mutex_unlock(&gbcodec->lock); c188fdc8176a8cb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-05-04 865 ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 866 if (comp->card->instantiated) ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 867 ret = snd_soc_dapm_new_widgets(comp->card); ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 868 dev_dbg(comp->dev, "Registered %s module\n", module->name); d3d2af51f9c2f29 drivers/staging/greybus/audio-codec.c Vaibhav Agarwal 2015-11-23 869 812cf704dac9f2f drivers/staging/greybus/audio_codec.c Takashi Iwai 2023-07-04 870 mutex_unlock(&gbcodec->register_mutex); bb9986ef6b311fb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-05-04 871 return ret; d3d2af51f9c2f29 drivers/staging/greybus/audio-codec.c Vaibhav Agarwal 2015-11-23 872 } 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 873 EXPORT_SYMBOL(gbaudio_register_module); d3d2af51f9c2f29 drivers/staging/greybus/audio-codec.c Vaibhav Agarwal 2015-11-23 874 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 875 static void gbaudio_codec_clean_data_tx(struct gbaudio_data_connection *data) 25de3491f110648 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-01-13 876 { 79cb2b26f54e883 drivers/staging/greybus/audio_codec.c Chaehyun Lim 2016-09-20 877 u16 i2s_port, cportid; 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 878 int ret; d764212f73cf270 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 879 d764212f73cf270 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 880 if (list_is_singular(&gbcodec->module_list)) { 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 881 ret = gb_audio_apbridgea_stop_tx(data->connection, 0); 5bbe14b7acc2a00 drivers/staging/greybus/audio_codec.c Mark Greer 2016-02-29 882 if (ret) 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 883 return; 620d28440c10b8f drivers/staging/greybus/audio_codec.c Deepak R Varma 2020-10-22 884 ret = gb_audio_apbridgea_shutdown_tx(data->connection, 0); 25de3491f110648 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-01-13 885 if (ret) 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 886 return; d764212f73cf270 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 887 } 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 888 i2s_port = 0; /* fixed for now */ 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 889 cportid = data->connection->hd_cport_id; 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 890 ret = gb_audio_apbridgea_unregister_cport(data->connection, 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 891 i2s_port, cportid, 4a8e519902e73c8 drivers/staging/greybus/audio_codec.c Mark Greer 2016-02-26 892 AUDIO_APBRIDGEA_DIRECTION_TX); 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 893 data->state[0] = GBAUDIO_CODEC_SHUTDOWN; b19df7b9950cd8c drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-02-16 894 } b19df7b9950cd8c drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-02-16 895 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 896 static void gbaudio_codec_clean_data_rx(struct gbaudio_data_connection *data) 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 897 { 79cb2b26f54e883 drivers/staging/greybus/audio_codec.c Chaehyun Lim 2016-09-20 898 u16 i2s_port, cportid; 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 899 int ret; 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 900 d764212f73cf270 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 901 if (list_is_singular(&gbcodec->module_list)) { 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 902 ret = gb_audio_apbridgea_stop_rx(data->connection, 0); 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 903 if (ret) 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 904 return; 620d28440c10b8f drivers/staging/greybus/audio_codec.c Deepak R Varma 2020-10-22 905 ret = gb_audio_apbridgea_shutdown_rx(data->connection, 0); 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 906 if (ret) 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 907 return; d764212f73cf270 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 908 } 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 909 i2s_port = 0; /* fixed for now */ 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 910 cportid = data->connection->hd_cport_id; 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 911 ret = gb_audio_apbridgea_unregister_cport(data->connection, 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 912 i2s_port, cportid, 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 913 AUDIO_APBRIDGEA_DIRECTION_RX); 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 914 data->state[1] = GBAUDIO_CODEC_SHUTDOWN; 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 915 } 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 916 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 917 static void gbaudio_codec_cleanup(struct gbaudio_module_info *module) 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 918 { 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 919 struct gbaudio_data_connection *data; 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 920 int pb_state, cap_state; 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 921 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 922 dev_dbg(gbcodec->dev, "%s: removed, cleanup APBridge\n", module->name); 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 923 list_for_each_entry(data, &module->data_list, list) { 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 924 pb_state = data->state[0]; 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 925 cap_state = data->state[1]; 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 926 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 927 if (pb_state > GBAUDIO_CODEC_SHUTDOWN) 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 928 gbaudio_codec_clean_data_tx(data); 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 929 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 930 if (cap_state > GBAUDIO_CODEC_SHUTDOWN) 591c45227a77505 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-04 931 gbaudio_codec_clean_data_rx(data); 6339d2322c47f4b drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-01-13 932 } 6339d2322c47f4b drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-01-13 933 } 6339d2322c47f4b drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-01-13 934 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 935 void gbaudio_unregister_module(struct gbaudio_module_info *module) 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 936 { ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 937 struct snd_soc_component *comp = gbcodec->component; ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 @938 struct snd_card *card = comp->card->snd_card; ac40b4d1e409971 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 939 struct gbaudio_jack *jack, *n; 33cc283928249b2 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-08-05 940 int mask; b19df7b9950cd8c drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-02-16 941 ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 942 dev_dbg(comp->dev, "Unregister %s module\n", module->name); b19df7b9950cd8c drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-02-16 943 812cf704dac9f2f drivers/staging/greybus/audio_codec.c Takashi Iwai 2023-07-04 944 mutex_lock(&gbcodec->register_mutex); 6dd67645f22cfeb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-03-29 945 mutex_lock(&gbcodec->lock); bb9986ef6b311fb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-05-04 946 gbaudio_codec_cleanup(module); bb9986ef6b311fb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-05-04 947 list_del(&module->list); ce7bd8325dc75c8 drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2020-07-09 948 dev_dbg(comp->dev, "Process Unregister %s module\n", module->name); c188fdc8176a8cb drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-05-04 949 mutex_unlock(&gbcodec->lock); 6339d2322c47f4b drivers/staging/greybus/audio_codec.c Vaibhav Agarwal 2016-01-13 950
:::::: The code at line 810 was first introduced by commit :::::: 2b8c2b51000e3d056f9aa27a64b93feabddf77a4 greybus: audio: Changes in response to ASoC cleanup
:::::: TO: Vaibhav Agarwal vaibhav.agarwal@linaro.org :::::: CC: Greg Kroah-Hartman gregkh@google.com
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