Hi Perry, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.10-rc2] [cannot apply to next-20201103] [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] url: https://github.com/0day-ci/linux/commits/Perry-Yuan/platform-x86-dell-privacy-Add-support-for-new-privacy-driver/20201103-205721 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git b7cbaf59f62f8ab8f157698f9e31642bff525bd0 config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/cee9f60d7ca58d8f0c6b113c5f7af2dec7e2e27d git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Perry-Yuan/platform-x86-dell-privacy-Add-support-for-new-privacy-driver/20201103-205721 git checkout cee9f60d7ca58d8f0c6b113c5f7af2dec7e2e27d # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/platform/x86/dell-laptop.c: In function 'dell_init': >> drivers/platform/x86/dell-laptop.c:2212:46: warning: comparison of constant '-19' with boolean expression is always false [-Wbool-compare] 2212 | privacy_valid = dell_privacy_valid() == -ENODEV; | ^~ drivers/platform/x86/dell-laptop.c: In function 'dell_exit': drivers/platform/x86/dell-laptop.c:2289:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation] 2289 | if (!privacy_valid) | ^~ drivers/platform/x86/dell-laptop.c:2291:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if' 2291 | dell_cleanup_rfkill(); | ^~~~~~~~~~~~~~~~~~~ -- drivers/platform/x86/dell-privacy-wmi.c: In function 'init_dell_privacy': drivers/platform/x86/dell-privacy-wmi.c:225:9: warning: unused variable 'ret' [-Wunused-variable] 225 | int ret, wmi, acpi; | ^~~ drivers/platform/x86/dell-privacy-wmi.c: At top level: >> drivers/platform/x86/dell-privacy-wmi.c:242:6: warning: no previous prototype for 'exit_dell_privacy_wmi' [-Wmissing-prototypes] 242 | void exit_dell_privacy_wmi(void) | ^~~~~~~~~~~~~~~~~~~~~ vim +2212 drivers/platform/x86/dell-laptop.c 2165 2166 static int __init dell_init(void) 2167 { 2168 struct calling_interface_token *token; 2169 int max_intensity = 0; 2170 int ret; 2171 2172 if (!dmi_check_system(dell_device_table)) 2173 return -ENODEV; 2174 2175 quirks = NULL; 2176 /* find if this machine support other functions */ 2177 dmi_check_system(dell_quirks); 2178 2179 ret = platform_driver_register(&platform_driver); 2180 if (ret) 2181 goto fail_platform_driver; 2182 platform_device = platform_device_alloc("dell-laptop", -1); 2183 if (!platform_device) { 2184 ret = -ENOMEM; 2185 goto fail_platform_device1; 2186 } 2187 ret = platform_device_add(platform_device); 2188 if (ret) 2189 goto fail_platform_device2; 2190 2191 ret = dell_setup_rfkill(); 2192 2193 if (ret) { 2194 pr_warn("Unable to setup rfkill\n"); 2195 goto fail_rfkill; 2196 } 2197 2198 if (quirks && quirks->touchpad_led) 2199 touchpad_led_init(&platform_device->dev); 2200 2201 kbd_led_init(&platform_device->dev); 2202 2203 dell_laptop_dir = debugfs_create_dir("dell_laptop", NULL); 2204 debugfs_create_file("rfkill", 0444, dell_laptop_dir, NULL, 2205 &dell_debugfs_fops); 2206 2207 dell_laptop_register_notifier(&dell_laptop_notifier); 2208 2209 if (dell_smbios_find_token(GLOBAL_MIC_MUTE_DISABLE) && 2210 dell_smbios_find_token(GLOBAL_MIC_MUTE_ENABLE)) { 2211 #if IS_ENABLED(CONFIG_DELL_PRIVACY) > 2212 privacy_valid = dell_privacy_valid() == -ENODEV; 2213 #endif 2214 if (!privacy_valid) { 2215 micmute_led_cdev.brightness = ledtrig_audio_get(LED_AUDIO_MICMUTE); 2216 ret = led_classdev_register(&platform_device->dev, &micmute_led_cdev); 2217 if (ret < 0) 2218 goto fail_led; 2219 } 2220 } 2221 2222 if (acpi_video_get_backlight_type() != acpi_backlight_vendor) 2223 return 0; 2224 2225 token = dell_smbios_find_token(BRIGHTNESS_TOKEN); 2226 if (token) { 2227 struct calling_interface_buffer buffer; 2228 2229 dell_fill_request(&buffer, token->location, 0, 0, 0); 2230 ret = dell_send_request(&buffer, 2231 CLASS_TOKEN_READ, SELECT_TOKEN_AC); 2232 if (ret == 0) 2233 max_intensity = buffer.output[3]; 2234 } 2235 2236 if (max_intensity) { 2237 struct backlight_properties props; 2238 memset(&props, 0, sizeof(struct backlight_properties)); 2239 props.type = BACKLIGHT_PLATFORM; 2240 props.max_brightness = max_intensity; 2241 dell_backlight_device = backlight_device_register("dell_backlight", 2242 &platform_device->dev, 2243 NULL, 2244 &dell_ops, 2245 &props); 2246 2247 if (IS_ERR(dell_backlight_device)) { 2248 ret = PTR_ERR(dell_backlight_device); 2249 dell_backlight_device = NULL; 2250 goto fail_backlight; 2251 } 2252 2253 dell_backlight_device->props.brightness = 2254 dell_get_intensity(dell_backlight_device); 2255 if (dell_backlight_device->props.brightness < 0) { 2256 ret = dell_backlight_device->props.brightness; 2257 goto fail_get_brightness; 2258 } 2259 backlight_update_status(dell_backlight_device); 2260 } 2261 2262 return 0; 2263 2264 fail_get_brightness: 2265 backlight_device_unregister(dell_backlight_device); 2266 fail_backlight: 2267 if (!privacy_valid) 2268 led_classdev_unregister(&micmute_led_cdev); 2269 fail_led: 2270 dell_cleanup_rfkill(); 2271 fail_rfkill: 2272 platform_device_del(platform_device); 2273 fail_platform_device2: 2274 platform_device_put(platform_device); 2275 fail_platform_device1: 2276 platform_driver_unregister(&platform_driver); 2277 fail_platform_driver: 2278 return ret; 2279 } 2280 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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