Hi Andrew, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: dea8dcf2a9fa8cc540136a6cd885c3beece16ec3 commit: 4e3393a969a0bdaae83263918b6824b2d08c3996 KVM: arm64: nVHE: Switch to hyp context for EL2 date: 4 months 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=4e3393a969a0bdaae83263918b6824b2d08c3996 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 4e3393a969a0bdaae83263918b6824b2d08c3996 # 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 <l...@intel.com> All warnings (new ones prefixed by >>): >> arch/arm64/kvm/hyp/nvhe/hyp-main.c:18:6: warning: no previous prototype for >> function 'handle_trap' [-Wmissing-prototypes] void handle_trap(struct kvm_cpu_context *host_ctxt) ^ arch/arm64/kvm/hyp/nvhe/hyp-main.c:18:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void handle_trap(struct kvm_cpu_context *host_ctxt) ^ static 1 warning generated. vim +/handle_trap +18 arch/arm64/kvm/hyp/nvhe/hyp-main.c 14 15 typedef unsigned long (*hypcall_fn_t) 16 (unsigned long, unsigned long, unsigned long); 17 > 18 void handle_trap(struct kvm_cpu_context *host_ctxt) --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
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