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SubjectRe: [PATCH 3/6] KVM: nVMX: properly handle errors in nested_vmx_handle_enlightened_vmptrld()
Hi Vitaly,

I love your patch! Perhaps something to improve:

[auto build test WARNING on next-20200306]
[also build test WARNING on v5.6-rc5]
[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/Vitaly-Kuznetsov/KVM-nVMX-propperly-handle-enlightened-vmptrld-failure-conditions/20200310-033952
base: b86a6a241b7c60ca7a6ca4fb3c0d2aedbbf2c1b6
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-174-g094d5a94-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@intel.com>


sparse warnings: (new ones prefixed by >>)

>> arch/x86/kvm/vmx/nested.c:1913:29: sparse: sparse: symbol 'nested_vmx_handle_enlightened_vmptrld' was not declared. Should it be static?
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100790 becomes 790)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a000a becomes a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80688 becomes 688)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80608 becomes 608)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80108 becomes 108)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80388 becomes 388)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (20482 becomes 482)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80b88 becomes b88)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80188 becomes 188)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80208 becomes 208)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80288 becomes 288)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a000a becomes a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100010 becomes 10)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100710 becomes 710)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100090 becomes 90)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (20402 becomes 402)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100790 becomes 790)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100490 becomes 490)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100310 becomes 310)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100590 becomes 590)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100610 becomes 610)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100690 becomes 690)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120912 becomes 912)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100590 becomes 590)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (20002 becomes 2)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (20082 becomes 82)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (20102 becomes 102)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (20182 becomes 182)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (20202 becomes 202)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (20282 becomes 282)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (20302 becomes 302)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (20382 becomes 382)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120012 becomes 12)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120092 becomes 92)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120112 becomes 112)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120192 becomes 192)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120212 becomes 212)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120292 becomes 292)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120312 becomes 312)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120392 becomes 392)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120412 becomes 412)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120492 becomes 492)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120592 becomes 592)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120612 becomes 612)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120512 becomes 512)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120692 becomes 692)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120712 becomes 712)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120792 becomes 792)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120812 becomes 812)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120892 becomes 892)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a019a becomes 19a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a021a becomes 21a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a029a becomes 29a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a031a becomes 31a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a039a becomes 39a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a041a becomes 41a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a049a becomes 49a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a051a becomes 51a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a059a becomes 59a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a061a becomes 61a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (120a92 becomes a92)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a089a becomes 89a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a091a becomes 91a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a099a becomes 99a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a028a becomes 28a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a030a becomes 30a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a038a becomes 38a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a040a becomes 40a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a048a becomes 48a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80b08 becomes b08)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100190 becomes 190)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100210 becomes 210)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80708 becomes 708)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80788 becomes 788)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80808 becomes 808)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80888 becomes 888)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100390 becomes 390)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100410 becomes 410)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100510 becomes 510)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a008a becomes 8a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a008a becomes 8a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a048a becomes 48a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (180018 becomes 18)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a010a becomes 10a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a010a becomes 10a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80408 becomes 408)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (80c88 becomes c88)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (180118 becomes 118)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (180198 becomes 198)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a009a becomes 9a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a028a becomes 28a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a030a becomes 30a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a038a becomes 38a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (a040a becomes 40a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100410 becomes 410)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (100510 becomes 510)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1a081a becomes 81a)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: cast truncates bits from constant value (1b009b becomes 9b)
arch/x86/kvm/vmx/evmcs.h:81:30: sparse: sparse: too many warnings

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

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