tree: https://github.com/0day-ci/linux/commits/UPDATE-20211210-231726/Lukas-Cze... head: 3645884240a4d5f00133b71e3a7fbb2070588706 commit: 3645884240a4d5f00133b71e3a7fbb2070588706 ext4: implement support for get/set fs label date: 4 hours ago config: i386-randconfig-s001-20211210 (https://download.01.org/0day-ci/archive/20211211/202112110238.laDrEJqZ-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-dirty # https://github.com/0day-ci/linux/commit/3645884240a4d5f00133b71e3a7fbb207... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review UPDATE-20211210-231726/Lukas-Czerner/ext4-implement-support-for-get-set-fs-label/20211112-060030 git checkout 3645884240a4d5f00133b71e3a7fbb2070588706 # save the config file to linux build tree mkdir build_dir make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash fs/ext4/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) Please review and possibly fold the followup patch. --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org