[linux-next:master 8291/9562] arch/arm64/kvm/va_layout.c:255:6: warning: no previous prototype for function 'kvm_get_kimage_voffset'

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

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   0eedceafd3a63fd082743c914853ef4b9247dbe6
commit: 68b824e428c5fb5c3dc5ef80b1543e767534b58e [8291/9562] KVM: arm64: Patch kimage_voffset instead of loading the EL1 value
config: arm64-randconfig-r006-20201201 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ac40a2d8f16b8a8c68fc811d67f647740e965cb8)
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
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=68b824e428c5fb5c3dc5ef80b1543e767534b58e
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 68b824e428c5fb5c3dc5ef80b1543e767534b58e
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   arch/arm64/kvm/va_layout.c:138:6: warning: no previous prototype for function 'kvm_patch_vector_branch' [-Wmissing-prototypes]
   void kvm_patch_vector_branch(struct alt_instr *alt,
        ^
   arch/arm64/kvm/va_layout.c:138:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void kvm_patch_vector_branch(struct alt_instr *alt,
   ^
   static 
   arch/arm64/kvm/va_layout.c:249:6: warning: no previous prototype for function 'kvm_update_kimg_phys_offset' [-Wmissing-prototypes]
   void kvm_update_kimg_phys_offset(struct alt_instr *alt,
        ^
   arch/arm64/kvm/va_layout.c:249:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void kvm_update_kimg_phys_offset(struct alt_instr *alt,
   ^
   static 
>> arch/arm64/kvm/va_layout.c:255:6: warning: no previous prototype for function 'kvm_get_kimage_voffset' [-Wmissing-prototypes]
   void kvm_get_kimage_voffset(struct alt_instr *alt,
        ^
   arch/arm64/kvm/va_layout.c:255:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
   void kvm_get_kimage_voffset(struct alt_instr *alt,
   ^
   static 
   3 warnings generated.

vim +/kvm_get_kimage_voffset +255 arch/arm64/kvm/va_layout.c

   254	
 > 255	void kvm_get_kimage_voffset(struct alt_instr *alt,

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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