tree: https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git kvm-arm64/nvhe-hyp-context head: a071261d93184f43b7dede7516b6c449c4ed5770 commit: 4e3393a969a0bdaae83263918b6824b2d08c3996 [12/19] KVM: arm64: nVHE: Switch to hyp context for EL2 config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 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 git checkout 4e3393a969a0bdaae83263918b6824b2d08c3996 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 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 >>): 18 | void handle_trap(struct kvm_cpu_context *host_ctxt) | ^~~~~~~~~~~ # https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git/com... git remote add arm-platforms https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git git fetch --no-tags arm-platforms kvm-arm64/nvhe-hyp-context git checkout 4e3393a969a0bdaae83263918b6824b2d08c3996 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 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org