Hi Vitaly, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on kvm/linux-next] [also build test WARNING on v4.18-rc2 next-20180628] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Vitaly-Kuznetsov/KVM-x86-hyperv-PV-IPI-support-for-Windows-guests/20180629-011544 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next coccinelle warnings: (new ones prefixed by >>) >> arch/x86/kvm/hyperv.c:174:2-3: Unneeded semicolon Please review and possibly fold the followup patch. --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation