[kbuild-all] [plbossart-sound:test/topology-ktest 5/7] sound/soc/soc-topology-test.c:60:5: warning: no previous prototype for 'd_probe'

tree: https://github.com/plbossart/sound test/topology-ktest head: 435db31343ff7801bdf6d7da608c85d8f53353d3 commit: 2e3a9e7d28656d8eeabda33de7b2349f013ac9a1 [5/7] ASoC: topology: KUnit: Add KUnit tests passing various arguments to snd_soc_tplg_component_load config: nios2-allyesconfig (attached as .config) compiler: nios2-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/plbossart/sound/commit/2e3a9e7d28656d8eeabda33de7b2349... git remote add plbossart-sound https://github.com/plbossart/sound git fetch --no-tags plbossart-sound test/topology-ktest git checkout 2e3a9e7d28656d8eeabda33de7b2349f013ac9a1 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nios2 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 60 | int d_probe(struct snd_soc_component *component) | ^~~~~~~ 73 | void d_remove(struct snd_soc_component *component) | ^~~~~~~~ 121 | int d_probe_null_comp(struct snd_soc_component *component) | ^~~~~~~~~~~~~~~~~ 229 | int d_probe_null_fw(struct snd_soc_component *component) | ^~~~~~~~~~~~~~~ vim +/d_probe +60 sound/soc/soc-topology-test.c 59 61 { 62 struct kunit_soc_component *kunit_comp = 63 container_of(component, struct kunit_soc_component, comp); 64 int ret; 65 66 ret = snd_soc_tplg_component_load(component, NULL, &kunit_comp->fw); 67 KUNIT_EXPECT_EQ_MSG(kunit_comp->kunit, kunit_comp->expect, ret, 68 "Failed topology load"); 69 70 return 0; 71 } 72 74 { 75 struct kunit_soc_component *kunit_comp = 76 container_of(component, struct kunit_soc_component, comp); 77 int ret; 78 79 ret = snd_soc_tplg_component_remove(component); 80 KUNIT_EXPECT_EQ(kunit_comp->kunit, 0, ret); 81 } 82 83 /* 84 * ASoC minimal boiler plate 85 */ 86 SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY())); 87 88 SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("sound-soc-topology-test"))); 89 90 static struct snd_soc_dai_link kunit_dai_links[] = { 91 { 92 .name = "KUNIT Audio Port", 93 .id = 0, 94 .stream_name = "Audio Playback/Capture", 95 .nonatomic = 1, 96 .dynamic = 1, 97 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 98 .dpcm_playback = 1, 99 .dpcm_capture = 1, 100 SND_SOC_DAILINK_REG(dummy, dummy, platform), 101 }, 102 }; 103 104 static const struct snd_soc_component_driver test_component = { 105 .name = "sound-soc-topology-test", 106 .probe = d_probe, 107 .remove = d_remove, 108 .non_legacy_dai_naming = 1, 109 }; 110 111 /* ===== TEST CASES ========================================================= */ 112 113 // TEST CASE 114 // Test passing NULL component as parameter to snd_soc_tplg_component_load 115 116 /* 117 * need to override generic probe function with one using NULL when calling 118 * topology load during component initialization, we don't need .remove 119 * handler as load should fail 120 */ 122 { 123 struct kunit_soc_component *kunit_comp = 124 container_of(component, struct kunit_soc_component, comp); 125 int ret; 126 127 /* instead of passing component pointer as first argument, pass NULL here */ 128 ret = snd_soc_tplg_component_load(NULL, NULL, &kunit_comp->fw); 129 KUNIT_EXPECT_EQ_MSG(kunit_comp->kunit, kunit_comp->expect, ret, 130 "Failed topology load"); 131 132 return 0; 133 } 134 135 static const struct snd_soc_component_driver test_component_null_comp = { 136 .name = "sound-soc-topology-test", 137 .probe = d_probe_null_comp, 138 .non_legacy_dai_naming = 1, 139 }; 140 141 static void snd_soc_tplg_test_load_with_null_comp(struct kunit *test) 142 { 143 struct kunit_soc_component *kunit_comp; 144 int ret; 145 146 /* prepare */ 147 kunit_comp = kunit_kzalloc(test, sizeof(*kunit_comp), GFP_KERNEL); 148 KUNIT_EXPECT_NOT_ERR_OR_NULL(test, kunit_comp); 149 kunit_comp->kunit = test; 150 kunit_comp->expect = -EINVAL; /* expect failure */ 151 152 kunit_comp->card.dev = test_dev, 153 kunit_comp->card.name = "kunit-card", 154 kunit_comp->card.owner = THIS_MODULE, 155 kunit_comp->card.dai_link = kunit_dai_links, 156 kunit_comp->card.num_links = ARRAY_SIZE(kunit_dai_links), 157 kunit_comp->card.fully_routed = true, 158 159 /* run test */ 160 ret = snd_soc_register_card(&kunit_comp->card); 161 if (ret != 0 && ret != -EPROBE_DEFER) 162 KUNIT_FAIL(test, "Failed to register card"); 163 164 ret = snd_soc_component_initialize(&kunit_comp->comp, &test_component_null_comp, test_dev); 165 KUNIT_EXPECT_EQ(test, 0, ret); 166 167 ret = snd_soc_add_component(&kunit_comp->comp, NULL, 0); 168 KUNIT_EXPECT_EQ(test, 0, ret); 169 170 /* cleanup */ 171 ret = snd_soc_unregister_card(&kunit_comp->card); 172 KUNIT_EXPECT_EQ(test, 0, ret); 173 174 snd_soc_unregister_component(test_dev); 175 } 176 177 // TEST CASE 178 // Test passing NULL ops as parameter to snd_soc_tplg_component_load 179 180 /* 181 * NULL ops is default case, we pass empty topology (fw), so we don't have 182 * anything to parse and just do nothing, which results in return 0; from 183 * calling soc_tplg_dapm_complete in soc_tplg_process_headers 184 */ 185 static void snd_soc_tplg_test_load_with_null_ops(struct kunit *test) 186 { 187 struct kunit_soc_component *kunit_comp; 188 int ret; 189 190 /* prepare */ 191 kunit_comp = kunit_kzalloc(test, sizeof(*kunit_comp), GFP_KERNEL); 192 KUNIT_EXPECT_NOT_ERR_OR_NULL(test, kunit_comp); 193 kunit_comp->kunit = test; 194 kunit_comp->expect = 0; /* expect success */ 195 196 kunit_comp->card.dev = test_dev, 197 kunit_comp->card.name = "kunit-card", 198 kunit_comp->card.owner = THIS_MODULE, 199 kunit_comp->card.dai_link = kunit_dai_links, 200 kunit_comp->card.num_links = ARRAY_SIZE(kunit_dai_links), 201 kunit_comp->card.fully_routed = true, 202 203 /* run test */ 204 ret = snd_soc_register_card(&kunit_comp->card); 205 if (ret != 0 && ret != -EPROBE_DEFER) 206 KUNIT_FAIL(test, "Failed to register card"); 207 208 ret = snd_soc_component_initialize(&kunit_comp->comp, &test_component, test_dev); 209 KUNIT_EXPECT_EQ(test, 0, ret); 210 211 ret = snd_soc_add_component(&kunit_comp->comp, NULL, 0); 212 KUNIT_EXPECT_EQ(test, 0, ret); 213 214 /* cleanup */ 215 ret = snd_soc_unregister_card(&kunit_comp->card); 216 KUNIT_EXPECT_EQ(test, 0, ret); 217 218 snd_soc_unregister_component(test_dev); 219 } 220 221 // TEST CASE 222 // Test passing NULL fw as parameter to snd_soc_tplg_component_load 223 224 /* 225 * need to override generic probe function with one using NULL pointer to fw 226 * when calling topology load during component initialization, we don't need 227 * .remove handler as load should fail 228 */ 230 { 231 struct kunit_soc_component *kunit_comp = 232 container_of(component, struct kunit_soc_component, comp); 233 int ret; 234 235 /* instead of passing fw pointer as third argument, pass NULL here */ 236 ret = snd_soc_tplg_component_load(component, NULL, NULL); 237 KUNIT_EXPECT_EQ_MSG(kunit_comp->kunit, kunit_comp->expect, ret, 238 "Failed topology load"); 239 240 return 0; 241 } 242 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org