[kbuild-all] Re: [RFCv2 04/16] x86/kvm: Use bounce buffers for KVM memory protection

Hi "Kirill, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on tip/x86/core] [also build test WARNING on kvm/linux-next hnaz-linux-mm/master v5.9] [cannot apply to next-20201016] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Kirill-A-Shutemov/KVM-protected-... base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 238c91115cd05c71447ea071624a4c9fe661f970 config: x86_64-randconfig-a001-20201020 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ea693a162786d933863ab079648d4261ac0ead47) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/0bdb6c3e82c3106d720106932629f0e3a... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Kirill-A-Shutemov/KVM-protected-memory-extension/20201020-142130 git checkout 0bdb6c3e82c3106d720106932629f0e3a121fb76 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): arch/x86/mm/mem_encrypt_common.c:16:6: warning: no previous prototype for function 'force_dma_unencrypted' [-Wmissing-prototypes] bool force_dma_unencrypted(struct device *dev) ^ arch/x86/mm/mem_encrypt_common.c:16:1: note: declare 'static' if the function is not intended to be used outside of this translation unit bool force_dma_unencrypted(struct device *dev) ^ static void __init mem_encrypt_init(void) ^ arch/x86/mm/mem_encrypt_common.c:41:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __init mem_encrypt_init(void) ^ static 2 warnings generated. vim +/mem_encrypt_init +41 arch/x86/mm/mem_encrypt_common.c 40 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org