[AMD Public Use] Hi there, I will fix this soon. The issue is reported on amd-20.45 branch, which was branched out ahead of the fix available on mainline. Regards, Guchun -----Original Message----- From: kernel test robot <lkp@xxxxxxxxx> Sent: Tuesday, December 15, 2020 1:49 PM To: Chen, Guchun <Guchun.Chen@xxxxxxx> Cc: kbuild-all@xxxxxxxxxxxx; clang-built-linux@xxxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx; Li, Dennis <Dennis.Li@xxxxxxx> Subject: [radeon-alex:amd-20.45 2387/2427] drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1284:2: warning: ignoring return value of function declared with 'warn_unused_result' attribute Hi Guchun, FYI, the error/warning still remains. tree: git://people.freedesktop.org/~agd5f/linux.git amd-20.45 head: a3950d94b046fb206e58fd3ec717f071c0203ba3 commit: cf13e50dea28cde351fa32767e36135afb30386d [2387/2427] drm/amdgpu: clean up ras sysfs creation (v2) config: x86_64-randconfig-a002-20201214 (attached as .config) compiler: clang version 12.0.0 (https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fllvm%2Fllvm-project&data=04%7C01%7Cguchun.chen%40amd.com%7C708cce12ecaa4d2ee1d108d8a0bd3135%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637436084052882308%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=I4ohtcRRR8iQs%2FfkMhy%2B7pnsAJ4V%2Br%2F0EpNjcoQp%2B4s%3D&reserved=0 a29ecca7819a6ed4250d3689b12b1f664bb790d7) reproduce (this is a W=1 build): wget https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fraw.githubusercontent.com%2Fintel%2Flkp-tests%2Fmaster%2Fsbin%2Fmake.cross&data=04%7C01%7Cguchun.chen%40amd.com%7C708cce12ecaa4d2ee1d108d8a0bd3135%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637436084052892302%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ijbznpvhsb43YLeQJ6UZb%2BfG4mnCiAA2ZmPQhLgz6Ig%3D&reserved=0 -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git remote add radeon-alex git://people.freedesktop.org/~agd5f/linux.git git fetch --no-tags radeon-alex amd-20.45 git checkout cf13e50dea28cde351fa32767e36135afb30386d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 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/gpu/drm/amd/amdgpu/amdgpu_ras.c:906:5: warning: no previous prototype for function 'amdgpu_ras_error_cure' [-Wmissing-prototypes] int amdgpu_ras_error_cure(struct amdgpu_device *adev, ^ drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:906:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int amdgpu_ras_error_cure(struct amdgpu_device *adev, ^ static >> drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1284:2: warning: ignoring return value of function declared with 'warn_unused_result' attribute [-Wunused-result] sysfs_create_group(&adev->dev->kobj, &group); ^~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~ 2 warnings generated. vim +/warn_unused_result +1284 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c 1249 1250 /* ras fs */ 1251 static BIN_ATTR(gpu_vram_bad_pages, S_IRUGO, 1252 amdgpu_ras_sysfs_badpages_read, NULL, 0); 1253 static DEVICE_ATTR(features, S_IRUGO, 1254 amdgpu_ras_sysfs_features_read, NULL); 1255 static int amdgpu_ras_fs_init(struct amdgpu_device *adev) 1256 { 1257 struct amdgpu_ras *con = amdgpu_ras_get_context(adev); 1258 struct attribute_group group = { 1259 .name = RAS_FS_NAME, 1260 }; 1261 struct attribute *attrs[] = { 1262 &con->features_attr.attr, 1263 NULL 1264 }; 1265 struct bin_attribute *bin_attrs[] = { 1266 NULL, 1267 NULL, 1268 }; 1269 1270 /* add features entry */ 1271 con->features_attr = dev_attr_features; 1272 group.attrs = attrs; 1273 sysfs_attr_init(attrs[0]); 1274 1275 if (amdgpu_bad_page_threshold != 0) { 1276 /* add bad_page_features entry */ 1277 bin_attr_gpu_vram_bad_pages.private = NULL; 1278 con->badpages_attr = bin_attr_gpu_vram_bad_pages; 1279 bin_attrs[0] = &con->badpages_attr; 1280 group.bin_attrs = bin_attrs; 1281 sysfs_bin_attr_init(bin_attrs[0]); 1282 } 1283 > 1284 sysfs_create_group(&adev->dev->kobj, &group); 1285 1286 return 0; 1287 } 1288 --- 0-DAY CI Kernel Test Service, Intel Corporation https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.01.org%2Fhyperkitty%2Flist%2Fkbuild-all%40lists.01.org&data=04%7C01%7Cguchun.chen%40amd.com%7C708cce12ecaa4d2ee1d108d8a0bd3135%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637436084052892302%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=3yLWtrUMlcPIY%2BMPElzz0R3JmvxV94d6yb0qKIZgdZM%3D&reserved=0 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
