Re: [PATCH v3 7/7] x86/kvm: support Hyper-V reenlightenment

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Hi Vitaly,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on tip/auto-latest]
[also build test WARNING on v4.15-rc8 next-20180118]
[cannot apply to tip/x86/core kvm/linux-next]
[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/x86-kvm-hyperv-stable-clocksorce-for-L2-guests-when-running-nested-KVM-on-Hyper-V/20180119-160814
reproduce:
        # apt-get install sparse
        make ARCH=x86_64 allmodconfig
        make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

   arch/x86/kvm/x86.c:2120:38: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const @@ got d const @@
   arch/x86/kvm/x86.c:2120:38: expected void const
   arch/x86/kvm/x86.c:2120:38: got unsigned char COPYING CREDITS Documentation Kbuild Kconfig MAINTAINERS Makefile README arch block certs crypto drivers firmware fs include init ipc kernel lib mm net samples scripts security sound tools usr virt
>> arch/x86/kvm/x86.c:5936:6: sparse: symbol 'kvm_hyperv_tsc_notifier' was not declared. Should it be
   arch/x86/kvm/x86.c:7585:5: sparse: symbol 'kvm_valid_sregs' was not declared. Should it be
   arch/x86/kvm/x86.c:8401:16: sparse: incompatible types in comparison expression (different address spaces)
   arch/x86/include/asm/paravirt.h:782:9: sparse: context imbalance in 'vcpu_enter_guest' - unexpected unlock

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
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