Hi Peter, Thank you for the patch! Yet something to improve: [auto build test ERROR on kvm/linux-next] [also build test ERROR on next-20200110] [cannot apply to kvmarm/next vfio/next v5.5-rc5] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Peter-Xu/KVM-Dirty-ring-interface/20200110-152053 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next config: s390-alldefconfig (attached as .config) compiler: s390-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=s390 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): arch/s390/../../virt/kvm/kvm_main.o: In function `mark_page_dirty_in_slot': >> kvm_main.c:(.text+0x4d6): undefined reference to `kvm_dirty_ring_get' >> kvm_main.c:(.text+0x4f0): undefined reference to `kvm_dirty_ring_push' arch/s390/../../virt/kvm/kvm_main.o: In function `kvm_vcpu_init': >> kvm_main.c:(.text+0x1fe6): undefined reference to `kvm_dirty_ring_alloc' >> kvm_main.c:(.text+0x204c): undefined reference to `kvm_dirty_ring_free' arch/s390/../../virt/kvm/kvm_main.o: In function `kvm_vcpu_uninit': kvm_main.c:(.text+0x20c0): undefined reference to `kvm_dirty_ring_free' arch/s390/../../virt/kvm/kvm_main.o: In function `kvm_reset_dirty_gfn': >> kvm_main.c:(.text+0x6650): undefined reference to `kvm_arch_mmu_enable_log_dirty_pt_masked' arch/s390/../../virt/kvm/kvm_main.o: In function `kvm_vm_ioctl': >> kvm_main.c:(.text+0x6b58): undefined reference to `kvm_dirty_ring_reset' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
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