[sean-jc:x86/vmxon_sucks 17/18] arch/x86/kvm/vmx/main.c:1077:1: warning: label 'err_tdx_bringup' defined but not used

[sean-jc:x86/vmxon_sucks 17/18] arch/x86/kvm/vmx/main.c:1077:1: warning: label 'err_tdx_bringup' defined but not used

[kernel test robot]

tree:   https://github.com/sean-jc/linux x86/vmxon_sucks
head:   812d315824cbec66990b83771c86b0ef6f6fc0e6
commit: 7fcfe117b421e1077f02e13d0cd5e8d1457f4b15 [17/18] KVM: TDX: Fold tdx_bringup() into tdx_hardware_setup()
config: x86_64-rhel-9.4-kunit (https://download.01.org/0day-ci/archive/20260125/202601252103.rucmNkfl-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260125/202601252103.rucmNkfl-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601252103.rucmNkfl-lkp@intel.com/

All warnings (new ones prefixed by >>):

   arch/x86/kvm/vmx/main.c: In function 'vt_init':
>> arch/x86/kvm/vmx/main.c:1077:1: warning: label 'err_tdx_bringup' defined but not used [-Wunused-label]
    1077 | err_tdx_bringup:
         | ^~~~~~~~~~~~~~~


vim +/err_tdx_bringup +1077 arch/x86/kvm/vmx/main.c

d6bee7813752b3 Kai Huang      2025-01-22  1040  
d6bee7813752b3 Kai Huang      2025-01-22  1041  static int __init vt_init(void)
d6bee7813752b3 Kai Huang      2025-01-22  1042  {
09b3d3c17f365f Isaku Yamahata 2024-10-30  1043  	unsigned vcpu_size, vcpu_align;
d6bee7813752b3 Kai Huang      2025-01-22  1044  	int r;
d6bee7813752b3 Kai Huang      2025-01-22  1045  
d6bee7813752b3 Kai Huang      2025-01-22  1046  	r = vmx_init();
d6bee7813752b3 Kai Huang      2025-01-22  1047  	if (r)
d6bee7813752b3 Kai Huang      2025-01-22  1048  		return r;
d6bee7813752b3 Kai Huang      2025-01-22  1049  
09b3d3c17f365f Isaku Yamahata 2024-10-30  1050  	/*
09b3d3c17f365f Isaku Yamahata 2024-10-30  1051  	 * TDX and VMX have different vCPU structures.  Calculate the
09b3d3c17f365f Isaku Yamahata 2024-10-30  1052  	 * maximum size/align so that kvm_init() can use the larger
09b3d3c17f365f Isaku Yamahata 2024-10-30  1053  	 * values to create the kmem_vcpu_cache.
09b3d3c17f365f Isaku Yamahata 2024-10-30  1054  	 */
09b3d3c17f365f Isaku Yamahata 2024-10-30  1055  	vcpu_size = sizeof(struct vcpu_vmx);
09b3d3c17f365f Isaku Yamahata 2024-10-30  1056  	vcpu_align = __alignof__(struct vcpu_vmx);
09b3d3c17f365f Isaku Yamahata 2024-10-30  1057  	if (enable_tdx) {
09b3d3c17f365f Isaku Yamahata 2024-10-30  1058  		vcpu_size = max_t(unsigned, vcpu_size,
09b3d3c17f365f Isaku Yamahata 2024-10-30  1059  				sizeof(struct vcpu_tdx));
09b3d3c17f365f Isaku Yamahata 2024-10-30  1060  		vcpu_align = max_t(unsigned, vcpu_align,
09b3d3c17f365f Isaku Yamahata 2024-10-30  1061  				__alignof__(struct vcpu_tdx));
161d34609f9b31 Isaku Yamahata 2024-12-10  1062  		kvm_caps.supported_vm_types |= BIT(KVM_X86_TDX_VM);
09b3d3c17f365f Isaku Yamahata 2024-10-30  1063  	}
09b3d3c17f365f Isaku Yamahata 2024-10-30  1064  
d6bee7813752b3 Kai Huang      2025-01-22  1065  	/*
d6bee7813752b3 Kai Huang      2025-01-22  1066  	 * Common KVM initialization _must_ come last, after this, /dev/kvm is
d6bee7813752b3 Kai Huang      2025-01-22  1067  	 * exposed to userspace!
d6bee7813752b3 Kai Huang      2025-01-22  1068  	 */
09b3d3c17f365f Isaku Yamahata 2024-10-30  1069  	r = kvm_init(vcpu_size, vcpu_align, THIS_MODULE);
d6bee7813752b3 Kai Huang      2025-01-22  1070  	if (r)
d6bee7813752b3 Kai Huang      2025-01-22  1071  		goto err_kvm_init;
d6bee7813752b3 Kai Huang      2025-01-22  1072  
d6bee7813752b3 Kai Huang      2025-01-22  1073  	return 0;
d6bee7813752b3 Kai Huang      2025-01-22  1074  
d6bee7813752b3 Kai Huang      2025-01-22  1075  err_kvm_init:
fcdbdf63431c9f Kai Huang      2024-11-15  1076  	tdx_cleanup();
fcdbdf63431c9f Kai Huang      2024-11-15 @1077  err_tdx_bringup:

:::::: The code at line 1077 was first introduced by commit
:::::: fcdbdf63431c9faf639bffc957ea2ce9b545432e KVM: VMX: Initialize TDX during KVM module load

:::::: TO: Kai Huang <kai.huang@intel.com>
:::::: CC: Paolo Bonzini <pbonzini@redhat.com>

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https://github.com/intel/lkp-tests/wiki