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And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Paolo-Bonzini/KVM-nVMX-nSVM-check-unconditionally-whether-CR3-is-valid/20261102-124045 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue patch link: https://lore.kernel.org/r/20261102174512.8903-7-pbonzini%40redhat.com patch subject: [PATCH 23/45] KVM: Introduce kvm_check_gen()/kvm_memslots_check_gen() config: loongarch-defconfig (https://download.01.org/0day-ci/archive/20261104/202611040108.LHPSqkKE-lkp@intel.com/config) compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 65303e81f481bbfe386b8596423f94c43198ba94) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261104/202611040108.LHPSqkKE-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202611040108.LHPSqkKE-lkp@intel.com/ All errors (new ones prefixed by >>): >> arch/loongarch/kvm/vcpu.c:167:53: error: expected ')' 167 | kvm_is_error_hva(ghc->hva) || !ghc->memslot) { | ^ arch/loongarch/kvm/vcpu.c:166:5: note: to match this '(' 166 | if (unlikely(!kvm_check_gen(vcpu->kvm, ghc->generation) || gpa != ghc->gpa || | ^ arch/loongarch/kvm/vcpu.c:1821:53: error: expected ')' 1821 | kvm_is_error_hva(ghc->hva) || !ghc->memslot) { | ^ arch/loongarch/kvm/vcpu.c:1820:5: note: to match this '(' 1820 | if (unlikely(!kvm_check_gen(vcpu->kvm, ghc->generation) || gpa != ghc->gpa || | ^ 2 errors generated. vim +167 arch/loongarch/kvm/vcpu.c 151 152 static void kvm_update_stolen_time(struct kvm_vcpu *vcpu) 153 { 154 u32 version; 155 u64 steal; 156 gpa_t gpa; 157 struct kvm_steal_time __user *st; 158 struct gfn_to_hva_cache *ghc; 159 160 ghc = &vcpu->arch.st.cache; 161 gpa = vcpu->arch.st.guest_addr; 162 if (!(gpa & KVM_STEAL_PHYS_VALID)) 163 return; 164 165 gpa &= KVM_STEAL_PHYS_MASK; 166 if (unlikely(!kvm_check_gen(vcpu->kvm, ghc->generation) || gpa != ghc->gpa || > 167 kvm_is_error_hva(ghc->hva) || !ghc->memslot) { 168 if (kvm_gfn_to_hva_cache_init(vcpu->kvm, ghc, gpa, sizeof(*st))) { 169 ghc->gpa = INVALID_GPA; 170 return; 171 } 172 } 173 174 st = (struct kvm_steal_time __user *)ghc->hva; 175 if (kvm_guest_has_pv_feature(vcpu, KVM_FEATURE_PREEMPT)) { 176 unsafe_put_user(0, &st->preempted, out); 177 vcpu->arch.st.preempted = 0; 178 } 179 180 unsafe_get_user(version, &st->version, out); 181 if (version & 1) 182 version += 1; /* first time write, random junk */ 183 184 version += 1; 185 unsafe_put_user(version, &st->version, out); 186 smp_wmb(); 187 188 unsafe_get_user(steal, &st->steal, out); 189 steal += current->sched_info.run_delay - vcpu->arch.st.last_steal; 190 vcpu->arch.st.last_steal = current->sched_info.run_delay; 191 unsafe_put_user(steal, &st->steal, out); 192 193 smp_wmb(); 194 version += 1; 195 unsafe_put_user(version, &st->version, out); 196 out: 197 mark_page_dirty_in_slot(vcpu->kvm, ghc->memslot, gpa_to_gfn(ghc->gpa)); 198 } 199 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki