[kbuild-all] [linuxppc:next-test 121/170] arch/powerpc/kernel/interrupt.c:36:20: error: unused function 'exit_must_hard_disable'

tree: https://github.com/linuxppc/linux next-test head: 77ba1e2abc7474c5321cbf8d90366ec69150d0a2 commit: 286df60f38cc6ab121f3121ba052fc1806722ec5 [121/170] powerpc/64: use interrupt restart table to speed up return from interrupt config: powerpc-randconfig-r034-20210620 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project e1adf90826a57b674eee79b071fb46c1f5683cd0) 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 # install powerpc cross compiling tool for clang build # apt-get install binutils-powerpc-linux-gnu # https://github.com/linuxppc/linux/commit/286df60f38cc6ab121f3121ba052fc18... git remote add linuxppc https://github.com/linuxppc/linux git fetch --no-tags linuxppc next-test git checkout 286df60f38cc6ab121f3121ba052fc1806722ec5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc 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 >>): static inline bool exit_must_hard_disable(void) ^ 1 error generated. vim +/exit_must_hard_disable +36 arch/powerpc/kernel/interrupt.c 28 29 #ifdef CONFIG_PPC_BOOK3S_64 30 DEFINE_STATIC_KEY_FALSE(interrupt_exit_not_reentrant); 31 static inline bool exit_must_hard_disable(void) 32 { 33 return static_branch_unlikely(&interrupt_exit_not_reentrant); 34 } 35 #else 37 { 38 return false; 39 } 40 #endif 41 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org