[android-common:android14-5.15 3/4] arch/arm64/kvm/hyp/nvhe/psci-relay.c:34:5: warning: no previous prototype for function '__pkvm_register_psci_notifier'

[android-common:android14-5.15 3/4] arch/arm64/kvm/hyp/nvhe/psci-relay.c:34:5: warning: no previous prototype for function '__pkvm_register_psci_notifier'

[kernel test robot]

tree:   https://android.googlesource.com/kernel/common android14-5.15
head:   8e245b4c3a574fbb94b6b655f84e071febc147a6
commit: 7d67ca44dd4b17b36d9dd52e4613f608af3b16c8 [3/4] ANDROID: KVM: arm64: Notify pKVM modules of PSCI events
config: arm64-randconfig-r032-20230213 (https://download.01.org/0day-ci/archive/20230214/202302141400.MTCToNgy-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project db89896bbbd2251fff457699635acbbedeead27f)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        git remote add android-common https://android.googlesource.com/kernel/common
        git fetch --no-tags android-common android14-5.15
        git checkout 7d67ca44dd4b17b36d9dd52e4613f608af3b16c8
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kvm/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302141400.MTCToNgy-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/arm64/kvm/hyp/nvhe/psci-relay.c:34:5: warning: no previous prototype for function '__pkvm_register_psci_notifier' [-Wmissing-prototypes]
   int __pkvm_register_psci_notifier(void (*cb)(enum pkvm_psci_notification, struct kvm_cpu_context *))
       ^
   arch/arm64/kvm/hyp/nvhe/psci-relay.c:34:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   int __pkvm_register_psci_notifier(void (*cb)(enum pkvm_psci_notification, struct kvm_cpu_context *))
   ^
   static 
   arch/arm64/kvm/hyp/nvhe/psci-relay.c:221:28: warning: no previous prototype for function 'kvm_host_psci_cpu_entry' [-Wmissing-prototypes]
   asmlinkage void __noreturn kvm_host_psci_cpu_entry(bool is_cpu_on)
                              ^
   arch/arm64/kvm/hyp/nvhe/psci-relay.c:221:12: note: declare 'static' if the function is not intended to be used outside of this translation unit
   asmlinkage void __noreturn kvm_host_psci_cpu_entry(bool is_cpu_on)
              ^
              static 
   2 warnings generated.


vim +/__pkvm_register_psci_notifier +34 arch/arm64/kvm/hyp/nvhe/psci-relay.c

    33	
  > 34	int __pkvm_register_psci_notifier(void (*cb)(enum pkvm_psci_notification, struct kvm_cpu_context *))
    35	{
    36		return cmpxchg(&pkvm_psci_notifier, NULL, cb) ? -EBUSY : 0;
    37	}
    38	

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