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Date:   Tue, 29 Dec 2020 19:23:30 +0800
From:   kernel test robot <lkp@...el.com>
To:     Marc Zyngier <maz@...nel.org>
Cc:     kbuild-all@...ts.01.org, clang-built-linux@...glegroups.com,
        linux-kernel@...r.kernel.org
Subject: arch/arm64/kvm/va_layout.c:249:6: warning: no previous prototype for
 function 'kvm_update_kimg_phys_offset'

Hi Marc,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   dea8dcf2a9fa8cc540136a6cd885c3beece16ec3
commit: 1db9d9ded771389aae5760d20dd1bac113451b9c KVM: arm64: Add kimg_hyp_va() helper
date:   7 weeks ago
config: arm64-randconfig-r025-20201229 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project cee1e7d14f4628d6174b33640d502bff3b54ae45)
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/torvalds/linux.git/commit/?id=1db9d9ded771389aae5760d20dd1bac113451b9c
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 1db9d9ded771389aae5760d20dd1bac113451b9c
        # 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@...el.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 
   2 warnings generated.


vim +/kvm_update_kimg_phys_offset +249 arch/arm64/kvm/va_layout.c

   248	
 > 249	void kvm_update_kimg_phys_offset(struct alt_instr *alt,

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

Download attachment ".config.gz" of type "application/gzip" (40040 bytes)

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