tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b81b1829e7e39f6cebdf6e4d5484eacbceda8554 commit: b1ae6dc41eaaa98bb75671e0f3665bfda248c3e7 module: add in-kernel support for decompressing date: 5 weeks ago config: sparc-randconfig-r005-20220213 (https://download.01.org/0day-ci/archive/20220214/202202140027.K0xZn3T2-lk...) compiler: sparc-linux-gcc (GCC) 11.2.0 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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout b1ae6dc41eaaa98bb75671e0f3665bfda248c3e7 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sparc SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): kernel/module_decompress.c: In function 'module_decompress_sysfs_init': 264 | error = sysfs_create_file(&module_kset->kobj, | ^~~~~~~~~~~ | module_use kernel/module_decompress.c:264:36: note: each undeclared identifier is reported only once for each function it appears in vim +264 kernel/module_decompress.c 259 260 static int __init module_decompress_sysfs_init(void) 261 { 262 int error; 263 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org