Hi Ben, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v5.11-rc3 next-20210112] [cannot apply to kvm/linux-next kvmarm/next] [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/0day-ci/linux/commits/Ben-Gardon/Allow-parallel-page-f... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git a0d54b4f5b219fb31f0776e9f53aa137e78ae431 config: powerpc-allyesconfig (attached as .config) compiler: powerpc64-linux-gcc (GCC) 9.3.0 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 # https://github.com/0day-ci/linux/commit/07d5ac23775a490560374edfec570f646... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ben-Gardon/Allow-parallel-page-faults-with-TDP-MMU/20210113-021817 git checkout 07d5ac23775a490560374edfec570f64687a6f09 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 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 >>): arch/powerpc/kvm/book3s_mmu_hpte.c: In function 'kvmppc_mmu_hpte_cache_map': 63 | kvm_mmu_lock(vcpu3s); | ^~~~~~ | | | struct kvmppc_vcpu_book3s * In file included from arch/powerpc/kvm/book3s_mmu_hpte.c:9: include/linux/kvm_host.h:1498:31: note: expected 'struct kvm *' but argument is of type 'struct kvmppc_vcpu_book3s *' 1498 | void kvm_mmu_lock(struct kvm *kvm); | ~~~~~~~~~~~~^~~ 92 | kvm_mmu_unlock(vcpu3s); | ^~~~~~ | | | struct kvmppc_vcpu_book3s * In file included from arch/powerpc/kvm/book3s_mmu_hpte.c:9: include/linux/kvm_host.h:1499:33: note: expected 'struct kvm *' but argument is of type 'struct kvmppc_vcpu_book3s *' 1499 | void kvm_mmu_unlock(struct kvm *kvm); | ~~~~~~~~~~~~^~~ arch/powerpc/kvm/book3s_mmu_hpte.c: In function 'invalidate_pte': arch/powerpc/kvm/book3s_mmu_hpte.c:110:15: error: passing argument 1 of 'kvm_mmu_lock' from incompatible pointer type [-Werror=incompatible-pointer-types] 110 | kvm_mmu_lock(vcpu3s); | ^~~~~~ | | | struct kvmppc_vcpu_book3s * In file included from arch/powerpc/kvm/book3s_mmu_hpte.c:9: include/linux/kvm_host.h:1498:31: note: expected 'struct kvm *' but argument is of type 'struct kvmppc_vcpu_book3s *' 1498 | void kvm_mmu_lock(struct kvm *kvm); | ~~~~~~~~~~~~^~~ arch/powerpc/kvm/book3s_mmu_hpte.c:114:18: error: passing argument 1 of 'kvm_mmu_unlock' from incompatible pointer type [-Werror=incompatible-pointer-types] 114 | kvm_mmu_unlock(vcpu3s); | ^~~~~~ | | | struct kvmppc_vcpu_book3s * In file included from arch/powerpc/kvm/book3s_mmu_hpte.c:9: include/linux/kvm_host.h:1499:33: note: expected 'struct kvm *' but argument is of type 'struct kvmppc_vcpu_book3s *' 1499 | void kvm_mmu_unlock(struct kvm *kvm); | ~~~~~~~~~~~~^~~ arch/powerpc/kvm/book3s_mmu_hpte.c:127:17: error: passing argument 1 of 'kvm_mmu_unlock' from incompatible pointer type [-Werror=incompatible-pointer-types] 127 | kvm_mmu_unlock(vcpu3s); | ^~~~~~ | | | struct kvmppc_vcpu_book3s * In file included from arch/powerpc/kvm/book3s_mmu_hpte.c:9: include/linux/kvm_host.h:1499:33: note: expected 'struct kvm *' but argument is of type 'struct kvmppc_vcpu_book3s *' 1499 | void kvm_mmu_unlock(struct kvm *kvm); | ~~~~~~~~~~~~^~~ cc1: some warnings being treated as errors vim +/kvm_mmu_lock +63 arch/powerpc/kvm/book3s_mmu_hpte.c 55 56 void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte) 57 { 58 u64 index; 59 struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu); 60 61 trace_kvm_book3s_mmu_map(pte); 62 64 65 /* Add to ePTE list */ 66 index = kvmppc_mmu_hash_pte(pte->pte.eaddr); 67 hlist_add_head_rcu(&pte->list_pte, &vcpu3s->hpte_hash_pte[index]); 68 69 /* Add to ePTE_long list */ 70 index = kvmppc_mmu_hash_pte_long(pte->pte.eaddr); 71 hlist_add_head_rcu(&pte->list_pte_long, 72 &vcpu3s->hpte_hash_pte_long[index]); 73 74 /* Add to vPTE list */ 75 index = kvmppc_mmu_hash_vpte(pte->pte.vpage); 76 hlist_add_head_rcu(&pte->list_vpte, &vcpu3s->hpte_hash_vpte[index]); 77 78 /* Add to vPTE_long list */ 79 index = kvmppc_mmu_hash_vpte_long(pte->pte.vpage); 80 hlist_add_head_rcu(&pte->list_vpte_long, 81 &vcpu3s->hpte_hash_vpte_long[index]); 82 83 #ifdef CONFIG_PPC_BOOK3S_64 84 /* Add to vPTE_64k list */ 85 index = kvmppc_mmu_hash_vpte_64k(pte->pte.vpage); 86 hlist_add_head_rcu(&pte->list_vpte_64k, 87 &vcpu3s->hpte_hash_vpte_64k[index]); 88 #endif 89 90 vcpu3s->hpte_cache_count++; 91 93 } 94 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org