Hi Ram, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on powerpc/next] [also build test WARNING on v5.7] [cannot apply to next-20200529] [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/Ram-Pai/Migrate-non-migrated-pages-of-a-SVM/20200601-034649 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: powerpc-rhel-kconfig (attached as .config) compiler: powerpc64le-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 # 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: kbuild test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>, old ones prefixed by <<): arch/powerpc/kvm/book3s_hv.c:3516:5: warning: no previous prototype for 'kvmhv_p9_guest_entry' [-Wmissing-prototypes] 3516 | int kvmhv_p9_guest_entry(struct kvm_vcpu *vcpu, u64 time_limit, | ^~~~~~~~~~~~~~~~~~~~ In file included from arch/powerpc/kvm/book3s_hv.c:75: >> arch/powerpc/include/asm/kvm_book3s_uvmem.h:89:12: warning: 'uv_migrate_mem_slot' used but never defined 89 | static int uv_migrate_mem_slot(struct kvm *kvm, | ^~~~~~~~~~~~~~~~~~~ vim +/uv_migrate_mem_slot +89 arch/powerpc/include/asm/kvm_book3s_uvmem.h 83 84 static inline void 85 kvmppc_uvmem_drop_pages(const struct kvm_memory_slot *free, 86 struct kvm *kvm, bool skip_page_out, 87 bool purge_gfn) { } 88 > 89 static int uv_migrate_mem_slot(struct kvm *kvm, --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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