[intel-tdx:kvm-upstream-workaround 279/314] lib/kvm_random.c:43:25: warning: implicit declaration of function 'cpuid_eax'

[kernel test robot]

tree:   https://github.com/intel/tdx.git kvm-upstream-workaround
head:   552dd80c48f67ca01bcdd10667e0c11efd375177
commit: a9daeb222b941f9c7fc89fee39301460ae2283d5 [279/314] *** HACK *** KVM: selftests: Add random_() framework to common KVM code
compiler: gcc-11 (Debian 11.3.0-5) 11.3.0
reproduce:
        # https://github.com/intel/tdx/commit/a9daeb222b941f9c7fc89fee39301460ae2283d5
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx kvm-upstream-workaround
        git checkout a9daeb222b941f9c7fc89fee39301460ae2283d5
        make O=/tmp/kselftest headers
        make O=/tmp/kselftest -C tools/testing/selftests

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

   In file included from lib/kvm_random.c:14:
   include/x86_64/processor.h:761: warning: "__stringify_1" redefined
     761 | #define __stringify_1(x) #x
         | 
   In file included from include/x86_64/processor.h:18,
                    from lib/kvm_random.c:14:
   ../../../../tools/include/linux/stringify.h:10: note: this is the location of the previous definition
      10 | #define __stringify_1(x...)     #x
         | 
   In file included from lib/kvm_random.c:14:
   include/x86_64/processor.h:762: warning: "__stringify" redefined
     762 | #define __stringify(x)  __stringify_1(x)
         | 
   In file included from include/x86_64/processor.h:18,
                    from lib/kvm_random.c:14:
   ../../../../tools/include/linux/stringify.h:11: note: this is the location of the previous definition
      11 | #define __stringify(x...)       __stringify_1(x)
         | 
   lib/kvm_random.c: In function 'init_random':
>> lib/kvm_random.c:43:25: warning: implicit declaration of function 'cpuid_eax' [-Wimplicit-function-declaration]
      43 |         x86_phys_bits = cpuid_eax(0x80000008) & 0xff;
         |                         ^~~~~~~~~

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