[intel-tdx:kvm-upstream-workaround 122/365] arch/x86/kvm/vmx/main.c:247:6: warning: no previous prototype for function 'vt_set_memory_attributes'

[kernel test robot <lkp@intel.com>]

tree:   https://github.com/intel/tdx.git kvm-upstream-workaround
head:   da8c3aa0cbb638a0dff13401bc17f817272110e6
commit: 7ead2f69626501b5fc9041b2c111f6d082e23bc4 [122/365] KVM: TDX: implement set_memory_attributes() callback
config: x86_64-randconfig-x004-20230716 (https://download.01.org/0day-ci/archive/20230716/202307161113.f3EF293Q-lkp@intel.com/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce: (https://download.01.org/0day-ci/archive/20230716/202307161113.f3EF293Q-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/202307161113.f3EF293Q-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from arch/x86/kvm/vmx/main.c:4:
   In file included from arch/x86/kvm/vmx/x86_ops.h:5:
   include/linux/kvm_host.h:2370:6: warning: no previous prototype for function 'kvm_arch_gmem_invalidate' [-Wmissing-prototypes]
   void kvm_arch_gmem_invalidate(struct kvm *kvm, kvm_pfn_t start, kvm_pfn_t end) { }
        ^
   include/linux/kvm_host.h:2370:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void kvm_arch_gmem_invalidate(struct kvm *kvm, kvm_pfn_t start, kvm_pfn_t end) { }
   ^
   static 
   arch/x86/kvm/vmx/main.c:185:3: error: call to undeclared function 'tdx_flush_tlb_current'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
                   tdx_flush_tlb_current(vcpu);
                   ^
   arch/x86/kvm/vmx/main.c:185:3: note: did you mean 'vmx_flush_tlb_current'?
   arch/x86/kvm/vmx/x86_ops.h:99:6: note: 'vmx_flush_tlb_current' declared here
   void vmx_flush_tlb_current(struct kvm_vcpu *vcpu);
        ^
>> arch/x86/kvm/vmx/main.c:247:6: warning: no previous prototype for function 'vt_set_memory_attributes' [-Wmissing-prototypes]
   bool vt_set_memory_attributes(struct kvm *kvm, struct kvm_gfn_range *range)
        ^
   arch/x86/kvm/vmx/main.c:247:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   bool vt_set_memory_attributes(struct kvm *kvm, struct kvm_gfn_range *range)
   ^
   static 
   2 warnings and 1 error generated.


vim +/vt_set_memory_attributes +247 arch/x86/kvm/vmx/main.c

   246	
 > 247	bool vt_set_memory_attributes(struct kvm *kvm, struct kvm_gfn_range *range)
   248	{
   249		if (is_td(kvm))
   250			return tdx_set_memory_attributes(kvm, range);
   251	
   252		if (kvm->arch.vm_type == KVM_X86_PROTECTED_VM)
   253			return kvm_unmap_gfn_range(kvm, range);
   254		return false;
   255	}
   256	

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