tree: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git 20211123-sysctl-cleanups head: c18add41d859b4feec081eab6cfd624a5642973d commit: 06d33569add5d71725a727d8da80ce480b06fdec [20/41] sysctl: add helper to register a sysctl mount point config: hexagon-randconfig-r045-20211123 (https://download.01.org/0day-ci/archive/20211124/202111241209.uMwnv9ST-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 49e3838145dff1ec91c2e67a2cb562775c8d2a08) 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/mcgrof/linux-next.git/com... git remote add mcgrof-next https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux-next.git git fetch --no-tags mcgrof-next 20211123-sysctl-cleanups git checkout 06d33569add5d71725a727d8da80ce480b06fdec # 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=hexagon prepare 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 >>): /c/kernel-tests/lib/kbuild.sh: line 3321: ulimit: max locked memory: cannot modify limit: Operation not permitted error: no override and no default toolchain set init/Kconfig:70:warning: 'RUSTC_VERSION': number is invalid In file included from arch/hexagon/kernel/asm-offsets.c:12: In file included from include/linux/compat.h:17: In file included from include/linux/fs.h:33: In file included from include/linux/percpu-rwsem.h:7: In file included from include/linux/rcuwait.h:6: In file included from include/linux/sched/signal.h:10: In file included from include/linux/cred.h:13: In file included from include/linux/key.h:17: return NULL ^ ; 1 error generated. make[2]: *** [scripts/Makefile.build:122: arch/hexagon/kernel/asm-offsets.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1284: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:226: __sub-make] Error 2 make: Target 'prepare' not remade because of errors. vim +230 include/linux/sysctl.h 227 228 static struct sysctl_header *register_sysctl_mount_point(const char *path) 229 { 231 } 232 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org