Hi Mauro, FYI, the error/warning still remains. tree: https://git.linuxtv.org/mchehab/experimental.git master head: 68b9bcc8a534cd11fe55f8bc82f948aae7d81b3c commit: 4005ecee616a51cb0305d8e3664af45376e7cf65 [115/390] media: atomisp: shift some structs from input_system_local config: x86_64-randconfig-a014-20211231 (https://download.01.org/0day-ci/archive/20211231/202112311809.bEKUPkjh-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 7cd109b92c72855937273a6c8ab19016fbe27d33) 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 git remote add mchehab-experimental https://git.linuxtv.org/mchehab/experimental.git git fetch --no-tags mchehab-experimental master git checkout 4005ecee616a51cb0305d8e3664af45376e7cf65 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/staging/media/atomisp/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from drivers/staging/media/atomisp/pci/atomisp_cmd.c:44: In file included from drivers/staging/media/atomisp//pci/atomisp_tables.h:23: In file included from drivers/staging/media/atomisp//pci/sh_css_params.h:30: In file included from drivers/staging/media/atomisp//pci/runtime/pipeline/interface/ia_css_pipeline.h:19: In file included from drivers/staging/media/atomisp//pci/sh_css_internal.h:28: In file included from drivers/staging/media/atomisp//pci/hive_isp_css_include/input_system.h:34: In file included from drivers/staging/media/atomisp//pci/input_system_local.h:144: >> drivers/staging/media/atomisp//pci/isp2400_input_system_local.h:32:40: warning: redefinition of typedef 'input_system_cfg2400_t' is a C11 feature [-Wtypedef-redefinition] typedef struct input_system_cfg2400_s input_system_cfg2400_t; ^ drivers/staging/media/atomisp//pci/input_system_local.h:22:40: note: previous definition is here typedef struct input_system_cfg2400_s input_system_cfg2400_t; ^ 1 warning generated. vim +/input_system_cfg2400_t +32 drivers/staging/media/atomisp//pci/isp2400_input_system_local.h ad85094b293e40 drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system_local.h Mauro Carvalho Chehab 2020-04-19 31 ad85094b293e40 drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system_local.h Mauro Carvalho Chehab 2020-04-19 @32 typedef struct input_system_cfg2400_s input_system_cfg2400_t; ad85094b293e40 drivers/staging/media/atomisp/pci/atomisp2/css2400/hive_isp_css_common/host/input_system_local.h Mauro Carvalho Chehab 2020-04-19 33 :::::: The code at line 32 was first introduced by commit :::::: ad85094b293e40e7a2f831b0311a389d952ebd5e Revert "media: staging: atomisp: Remove driver" :::::: TO: Mauro Carvalho Chehab :::::: CC: Mauro Carvalho Chehab --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org