linux-kernel - Re: [PATCH 1/2] selftests: kvm: remove print

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Date: Sat, 15 Jun 2024 21:01:52 +0800
From: kernel test robot <lkp@...el.com>
To: Muhammad Usama Anjum <usama.anjum@...labora.com>, Marc Zyngier
	<maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>, James Morse
	<james.morse@....com>, Suzuki K Poulose <suzuki.poulose@....com>, Zenghui Yu
	<yuzenghui@...wei.com>, Paolo Bonzini <pbonzini@...hat.com>, Shuah Khan
	<skhan@...uxfoundation.org>, Christian Borntraeger
	<borntraeger@...ux.ibm.com>, Janosch Frank <frankja@...ux.ibm.com>, "Claudio
 Imbrenda" <imbrenda@...ux.ibm.com>, David Hildenbrand <david@...hat.com>,
	"Sean Christopherson" <seanjc@...gle.com>, Haibo Xu <haibo1.xu@...el.com>,
	"Anup Patel" <anup@...infault.org>, Andrew Jones <ajones@...tanamicro.com>,
	"Aaron Lewis" <aaronlewis@...gle.com>, Thomas Huth <thuth@...hat.com>,
	"Maciej Wieczor-Retman" <maciej.wieczor-retman@...el.com>, Vitaly Kuznetsov
	<vkuznets@...hat.com>
CC: <oe-kbuild-all@...ts.linux.dev>, <kernel@...labora.com>,
	<linux-arm-kernel@...ts.infradead.org>, <kvmarm@...ts.linux.dev>,
	<kvm@...r.kernel.org>, <linux-kselftest@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] selftests: kvm: remove print_skip()

Hi Muhammad,

kernel test robot noticed the following build warnings:

[auto build test WARNING on kvm/queue]
[also build test WARNING on kvmarm/next kvms390/next linus/master v6.10-rc3 next-20240613]
[cannot apply to kvm/linux-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Muhammad-Usama-Anjum/selftests-kvm-replace-exit-with-ksft_exit_fail_msg/20240612-184820
base:   https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
patch link:    https://lore.kernel.org/r/20240612104500.425012-1-usama.anjum%40collabora.com
patch subject: [PATCH 1/2] selftests: kvm: remove print_skip()
:::::: branch date: 3 days ago
:::::: commit date: 3 days ago
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240615/202406151641.BjqL765q-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/r/202406151641.BjqL765q-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> x86_64/hyperv_cpuid.c:155:1: warning: unused label 'do_sys' [-Wunused-label]
     155 | do_sys:
         | ^~~~~~~
>> x86_64/hyperv_cpuid.c:165:1: warning: unused label 'out' [-Wunused-label]
     165 | out:
         | ^~~~
   2 warnings generated.


vim +/do_sys +155 tools/testing/selftests/kvm/x86_64/hyperv_cpuid.c

7edcb73433276d Vitaly Kuznetsov     2018-12-10  128  
7edcb73433276d Vitaly Kuznetsov     2018-12-10  129  int main(int argc, char *argv[])
7edcb73433276d Vitaly Kuznetsov     2018-12-10  130  {
7edcb73433276d Vitaly Kuznetsov     2018-12-10  131  	struct kvm_vm *vm;
813e38cd6d7b42 Sean Christopherson  2022-06-14  132  	const struct kvm_cpuid2 *hv_cpuid_entries;
5c6e31b3bc4b52 Sean Christopherson  2022-02-15  133  	struct kvm_vcpu *vcpu;
7edcb73433276d Vitaly Kuznetsov     2018-12-10  134  
7ed397d107d461 Sean Christopherson  2022-05-27  135  	TEST_REQUIRE(kvm_has_cap(KVM_CAP_HYPERV_CPUID));
7edcb73433276d Vitaly Kuznetsov     2018-12-10  136  
5c6e31b3bc4b52 Sean Christopherson  2022-02-15  137  	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
8b460692fee46a Vitaly Kuznetsov     2020-09-29  138  
8b460692fee46a Vitaly Kuznetsov     2020-09-29  139  	/* Test vCPU ioctl version */
5c6e31b3bc4b52 Sean Christopherson  2022-02-15  140  	test_hv_cpuid_e2big(vm, vcpu);
8b460692fee46a Vitaly Kuznetsov     2020-09-29  141  
768e9a61856b75 Sean Christopherson  2022-06-02  142  	hv_cpuid_entries = vcpu_get_supported_hv_cpuid(vcpu);
8b460692fee46a Vitaly Kuznetsov     2020-09-29  143  	test_hv_cpuid(hv_cpuid_entries, false);
813e38cd6d7b42 Sean Christopherson  2022-06-14  144  	free((void *)hv_cpuid_entries);
8b460692fee46a Vitaly Kuznetsov     2020-09-29  145  
1ecbb337fa107c Sean Christopherson  2022-06-14  146  	if (!kvm_cpu_has(X86_FEATURE_VMX) ||
a9af8b5d3d419a Muhammad Usama Anjum 2024-06-12  147  	    !kvm_has_cap(KVM_CAP_HYPERV_ENLIGHTENED_VMCS))
a9af8b5d3d419a Muhammad Usama Anjum 2024-06-12  148  		ksft_exit_skip("Enlightened VMCS is unsupported\n");
a9af8b5d3d419a Muhammad Usama Anjum 2024-06-12  149  
768e9a61856b75 Sean Christopherson  2022-06-02  150  	vcpu_enable_evmcs(vcpu);
768e9a61856b75 Sean Christopherson  2022-06-02  151  	hv_cpuid_entries = vcpu_get_supported_hv_cpuid(vcpu);
8b460692fee46a Vitaly Kuznetsov     2020-09-29  152  	test_hv_cpuid(hv_cpuid_entries, true);
813e38cd6d7b42 Sean Christopherson  2022-06-14  153  	free((void *)hv_cpuid_entries);
8b460692fee46a Vitaly Kuznetsov     2020-09-29  154  
8b460692fee46a Vitaly Kuznetsov     2020-09-29 @155  do_sys:

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki