tree: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue head: 8c1db5a775bc8314d78e99263e0d063a01b692c2 commit: 4ab22f38c2046f2c949cb43fc0f7515666a2a2fb [182/205] KVM: x86: Support the vCPU preemption check with nopvspin and realtime hint config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220310/202203100918.w17rtniQ-lkp@xxxxxxxxx/config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?id=4ab22f38c2046f2c949cb43fc0f7515666a2a2fb git remote add kvm https://git.kernel.org/pub/scm/virt/kvm/kvm.git git fetch --no-tags kvm queue git checkout 4ab22f38c2046f2c949cb43fc0f7515666a2a2fb # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> arch/x86/kernel/kvm.c:756:16: warning: no previous prototype for '__kvm_vcpu_is_preempted' [-Wmissing-prototypes] 756 | __visible bool __kvm_vcpu_is_preempted(long cpu) | ^~~~~~~~~~~~~~~~~~~~~~~ vim +/__kvm_vcpu_is_preempted +756 arch/x86/kernel/kvm.c 754 755 #ifdef CONFIG_X86_32 > 756 __visible bool __kvm_vcpu_is_preempted(long cpu) 757 { 758 struct kvm_steal_time *src = &per_cpu(steal_time, cpu); 759 760 return !!(src->preempted & KVM_VCPU_PREEMPTED); 761 } 762 PV_CALLEE_SAVE_REGS_THUNK(__kvm_vcpu_is_preempted); 763 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
