linux-kernel - Re: [PATCH v7 10/18] x86/paravirt: Add hypervisor specific hypercall for SEV live migration.

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Date:   Fri, 1 May 2020 19:00:36 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Ashish Kalra <Ashish.Kalra@....com>, pbonzini@...hat.com
Cc:     kbuild-all@...ts.01.org, tglx@...utronix.de, mingo@...hat.com,
        hpa@...or.com, joro@...tes.org, bp@...e.de,
        thomas.lendacky@....com, x86@...nel.org, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 10/18] x86/paravirt: Add hypervisor specific hypercall
 for SEV live migration.

Hi Ashish,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on v5.7-rc3]
[cannot apply to kvm/linux-next tip/x86/mm tip/x86/core next-20200501]
[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/Ashish-Kalra/Add-AMD-SEV-guest-live-migration-support/20200430-202702
base:    6a8b55ed4056ea5559ebe4f6a4b247f627870d4c
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-191-gc51a0382-dirty
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

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


sparse warnings: (new ones prefixed by >>)

>> arch/x86/kernel/kvm.c:733:6: sparse: sparse: symbol 'kvm_sev_migration_hcall' was not declared. Should it be static?

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org