tree: https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-5.10 head: 097676f2c9643c3fb32f11c3f6c4226a50bb0cd7 commit: ac942c10370bec545de2e7778d5f4e8a5910a845 [36/73] rcu/nocb: Trigger self-IPI on late deferred wake up before user resume config: powerpc64-randconfig-r034-20210318 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project fcc1ce00931751ac02498986feb37744e9ace8de) 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 powerpc64 cross compiling tool for clang build # apt-get install binutils-powerpc64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git/c... git remote add sashal-linux-stable https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git git fetch --no-tags sashal-linux-stable queue-5.10 git checkout ac942c10370bec545de2e7778d5f4e8a5910a845 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc64 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 >>): IRQ_WORK_INIT(late_wakeup_func); ^ static DEFINE_PER_CPU(struct irq_work, late_wakeup_work) = ^ include/linux/percpu-defs.h:115:31: note: expanded from macro 'DEFINE_PER_CPU' DEFINE_PER_CPU_SECTION(type, name, "") ^ include/linux/percpu-defs.h:95:44: note: expanded from macro 'DEFINE_PER_CPU_SECTION' __PCPU_ATTRS(sec) __weak __typeof__(type) name ^ 2 errors generated. vim +/IRQ_WORK_INIT +682 kernel/rcu/tree.c 680 683 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org