Hi Paolo, I love your patch! Yet something to improve: [auto build test ERROR on kvm/master] [also build test ERROR on linus/master v5.18-rc3] [cannot apply to kvmarm/next mst-vhost/linux-next linux/master next-20220422] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/intel-lab-lkp/linux/commits/Paolo-Bonzini/KVM-fix-bad-user-ABI-for-KVM_EXIT_SYSTEM_EVENT/20220422-184535 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git master config: riscv-randconfig-r014-20220422 (https://download.01.org/0day-ci/archive/20220423/202204230312.8EOM8DHM-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 5bd87350a5ae429baf8f373cb226a57b62f87280) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/71af2c55b700878ad9d73c90c6b75f327f36d0a9 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Paolo-Bonzini/KVM-fix-bad-user-ABI-for-KVM_EXIT_SYSTEM_EVENT/20220422-184535 git checkout 71af2c55b700878ad9d73c90c6b75f327f36d0a9 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=riscv SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> arch/riscv/kvm/vcpu_sbi.c:98:30: error: use of undeclared identifier 'reason' run->system_event.data[0] = reason; ^ 1 error generated. vim +/reason +98 arch/riscv/kvm/vcpu_sbi.c 83 84 void kvm_riscv_vcpu_sbi_system_reset(struct kvm_vcpu *vcpu, 85 struct kvm_run *run, 86 u32 type, u64 flags) 87 { 88 unsigned long i; 89 struct kvm_vcpu *tmp; 90 91 kvm_for_each_vcpu(i, tmp, vcpu->kvm) 92 tmp->arch.power_off = true; 93 kvm_make_all_cpus_request(vcpu->kvm, KVM_REQ_SLEEP); 94 95 memset(&run->system_event, 0, sizeof(run->system_event)); 96 run->system_event.type = type; 97 run->system_event.ndata = 1; > 98 run->system_event.data[0] = reason; 99 run->exit_reason = KVM_EXIT_SYSTEM_EVENT; 100 } 101 -- 0-DAY CI Kernel Test Service https://01.org/lkp