Hi David, kernel test robot noticed the following build errors: [auto build test ERROR on kvm/queue] [also build test ERROR on mst-vhost/linux-next linus/master v6.6] [cannot apply to kvm/linux-next next-20231102] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/David-Woodhouse/KVM-x86-xen-improve-accuracy-of-Xen-timers/20231028-020037 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue patch link: https://lore.kernel.org/r/b5a974bdc330be91c2356f5bb2cc68ef1cc7ed40.camel%40infradead.org patch subject: [PATCH] KVM: x86/xen: improve accuracy of Xen timers config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20231103/202311030654.j0vxHNkS-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231103/202311030654.j0vxHNkS-lkp@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202311030654.j0vxHNkS-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): ld: arch/x86/kvm/xen.o: in function `kvm_xen_start_timer': >> xen.c:(.text+0x132): undefined reference to `kvm_get_monotonic_and_clockread' -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki