[android-common:android13-5.10 17571/30000] arch/arm64/kvm/hyp/nvhe/psci-relay.c:249:6: warning: no previous prototype for 'psci_mem_protect_inc'

[android-common:android13-5.10 17571/30000] arch/arm64/kvm/hyp/nvhe/psci-relay.c:249:6: warning: no previous prototype for 'psci_mem_protect_inc'

[kernel test robot]

tree:   https://android.googlesource.com/kernel/common android13-5.10
head:   57bec5e659b43d5c29cd8678f5888f3bf2594bcf
commit: ba73e0b827383ff4ede2036f5bae8424896139f3 [17571/30000] ANDROID: KVM: arm64: Use PSCI MEM_PROTECT to zap guest pages on reset
config: arm64-randconfig-r016-20230905 (https://download.01.org/0day-ci/archive/20240115/202401151643.mLcl4xVa-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240115/202401151643.mLcl4xVa-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/202401151643.mLcl4xVa-lkp@intel.com/

All warnings (new ones prefixed by >>):

   arch/arm64/kvm/hyp/nvhe/psci-relay.c:204:28: warning: no previous prototype for 'kvm_host_psci_cpu_entry' [-Wmissing-prototypes]
     204 | asmlinkage void __noreturn kvm_host_psci_cpu_entry(bool is_cpu_on)
         |                            ^~~~~~~~~~~~~~~~~~~~~~~
>> arch/arm64/kvm/hyp/nvhe/psci-relay.c:249:6: warning: no previous prototype for 'psci_mem_protect_inc' [-Wmissing-prototypes]
     249 | void psci_mem_protect_inc(void)
         |      ^~~~~~~~~~~~~~~~~~~~
>> arch/arm64/kvm/hyp/nvhe/psci-relay.c:256:6: warning: no previous prototype for 'psci_mem_protect_dec' [-Wmissing-prototypes]
     256 | void psci_mem_protect_dec(void)
         |      ^~~~~~~~~~~~~~~~~~~~


vim +/psci_mem_protect_inc +249 arch/arm64/kvm/hyp/nvhe/psci-relay.c

   248	
 > 249	void psci_mem_protect_inc(void)
   250	{
   251		hyp_spin_lock(&mem_protect_lock);
   252		psci_mem_protect(1);
   253		hyp_spin_unlock(&mem_protect_lock);
   254	}
   255	
 > 256	void psci_mem_protect_dec(void)
   257	{
   258		hyp_spin_lock(&mem_protect_lock);
   259		psci_mem_protect(-1);
   260		hyp_spin_unlock(&mem_protect_lock);
   261	}
   262	

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