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SubjectRe: [PATCH v4 3/3] x86/kvm: Expose AMD Core Perf Extension flag to guests
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On 2/2/2018 2:03 PM, kbuild test robot wrote:
> Hi Janakarajan,
>
> Thank you for the patch! Perhaps something to improve:
>
> [auto build test WARNING on tip/x86/core]
> [also build test WARNING on v4.15]
> [cannot apply to kvm/linux-next next-20180202]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
This patch uses functions defined in commit
'd6321d493319bfd406c484e8359c6101cbda39d3 KVM: x86: generalize
guest_cpuid_has_ helpers'.
https://lkml.org/lkml/2017/8/2/811
>
> url: https://github.com/0day-ci/linux/commits/Janakarajan-Natarajan/Support-Perf-Extensions-on-AMD-KVM-guests/20180202-231344
> 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/cpuid.c:58:6: sparse: symbol 'perf_ext_supported' was not declared. Should it be
> 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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