[intel-tdx:kvm-upstream-workaround 319/327] arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1979:12: warning: no previous prototype for function 'kvm_arch_required_alignment'

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

tree:   https://github.com/intel/tdx.git kvm-upstream-workaround
head:   148ce77f987a3cf12193c1f81baa78f41cf13154
commit: f9628fde0c623c76992345cebbf4cefdcc6bb542 [319/327] KVM: Relax alignment check for restricted mem
config: arm64-buildonly-randconfig-r002-20230529 (https://download.01.org/0day-ci/archive/20230529/202305292058.bSTEzaTY-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 4faf3aaf28226a4e950c103a14f6fc1d1fdabb1b)
reproduce (this is a W=1 build):
        mkdir -p ~/bin
        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
        # https://github.com/intel/tdx/commit/f9628fde0c623c76992345cebbf4cefdcc6bb542
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx kvm-upstream-workaround
        git checkout f9628fde0c623c76992345cebbf4cefdcc6bb542
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202305292058.bSTEzaTY-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

>> arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1981:19: error: expected ';' after return statement
           return PAGE_SHIFT
                            ^
                            ;
>> arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1979:12: warning: no previous prototype for function 'kvm_arch_required_alignment' [-Wmissing-prototypes]
   __weak int kvm_arch_required_alignment(u64 gpa)
              ^
   arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1979:8: note: declare 'static' if the function is not intended to be used outside of this translation unit
   __weak int kvm_arch_required_alignment(u64 gpa)
          ^
          static 
   1 warning and 1 error generated.


vim +/kvm_arch_required_alignment +1979 arch/arm64/kvm/../../../virt/kvm/kvm_main.c

  1977	
  1978	#ifndef kvm_arch_required_alignment
> 1979	__weak int kvm_arch_required_alignment(u64 gpa)
  1980	{
> 1981		return PAGE_SHIFT
  1982	}
  1983	#endif
  1984	

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