Hi Nitesh, [auto build test ERROR on kvm/linux-next] [also build test ERROR on v4.14-rc4 next-20171012] [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/nilal-redhat-com/KVM-Guest-page-hinting/20171013-181927 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next config: s390-defconfig (attached as .config) compiler: s390x-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 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 make.cross ARCH=s390 All errors (new ones prefixed by >>): drivers/virtio/virtio_balloon.o: In function `virtballoon_probe': drivers/virtio/virtio_balloon.c:628: undefined reference to `request_hypercall' drivers/virtio/virtio_balloon.c:629: undefined reference to `balloon_ptr' drivers/virtio/virtio_balloon.o: In function `virtballoon_page_hinting': drivers/virtio/virtio_balloon.c:114: undefined reference to `hypervisor_pagelist' >> drivers/virtio/virtio_balloon.o:(.rodata+0x30): undefined reference to `hypervisor_pagelist' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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