linux-kernel - Re: [PATCH v3 4/6] KVM: x86/vPMU: Introduce a new kvm_pmu_ops->msr_idx_to

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Date:   Sat, 26 Oct 2019 13:28:36 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Like Xu <like.xu@...ux.intel.com>
Cc:     kbuild-all@...ts.01.org, pbonzini@...hat.com, peterz@...radead.org,
        kvm@...r.kernel.org, like.xu@...el.com,
        linux-kernel@...r.kernel.org, jmattson@...gle.com,
        sean.j.christopherson@...el.com, wei.w.wang@...el.com,
        kan.liang@...el.com
Subject: Re: [PATCH v3 4/6] KVM: x86/vPMU: Introduce a new
 kvm_pmu_ops->msr_idx_to_pmc callback

Hi Like,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on kvm/linux-next]
[cannot apply to v5.4-rc4 next-20191025]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Like-Xu/KVM-x86-vPMU-Efficiency-optimization-by-reusing-last-created-perf_event/20191024-164128
base:   https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-dirty
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>


sparse warnings: (new ones prefixed by >>)

>> arch/x86/kvm/vmx/pmu_intel.c:165:16: sparse: sparse: symbol 'intel_msr_idx_to_pmc' was not declared. Should it be static?
--
>> arch/x86/kvm/pmu_amd.c:207:16: sparse: sparse: symbol 'amd_msr_idx_to_pmc' was not declared. Should it be static?

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