Hi Kalesh, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on cfb92440ee71adcc2105b0890bb01ac3cddb8507] url: https://github.com/0day-ci/linux/commits/Kalesh-Singh/KVM-arm64-Hypervisor-stack-enhancements/20220223-010522 base: cfb92440ee71adcc2105b0890bb01ac3cddb8507 config: arm64-randconfig-r011-20220221 (https://download.01.org/0day-ci/archive/20220223/202202231727.L621fVgD-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) 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://github.com/0day-ci/linux/commit/7fe99fd40f7c4b2973218045ca5b9c9160524db1 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Kalesh-Singh/KVM-arm64-Hypervisor-stack-enhancements/20220223-010522 git checkout 7fe99fd40f7c4b2973218045ca5b9c9160524db1 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:200:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [ESR_ELx_EC_FP_ASIMD] = kvm_hyp_handle_fpsimd, ^~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:196:28: note: previous initialization is here [0 ... ESR_ELx_EC_MAX] = NULL, ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:201:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [ESR_ELx_EC_IABT_LOW] = kvm_hyp_handle_iabt_low, ^~~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:196:28: note: previous initialization is here [0 ... ESR_ELx_EC_MAX] = NULL, ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:202:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [ESR_ELx_EC_DABT_LOW] = kvm_hyp_handle_dabt_low, ^~~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:196:28: note: previous initialization is here [0 ... ESR_ELx_EC_MAX] = NULL, ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:203:22: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [ESR_ELx_EC_PAC] = kvm_hyp_handle_ptrauth, ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:196:28: note: previous initialization is here [0 ... ESR_ELx_EC_MAX] = NULL, ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:208:24: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [ESR_ELx_EC_SYS64] = kvm_handle_pvm_sys64, ^~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:207:28: note: previous initialization is here [0 ... ESR_ELx_EC_MAX] = NULL, ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:209:22: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [ESR_ELx_EC_SVE] = kvm_handle_pvm_restricted, ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:207:28: note: previous initialization is here [0 ... ESR_ELx_EC_MAX] = NULL, ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:210:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [ESR_ELx_EC_FP_ASIMD] = kvm_handle_pvm_fpsimd, ^~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:207:28: note: previous initialization is here [0 ... ESR_ELx_EC_MAX] = NULL, ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:211:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [ESR_ELx_EC_IABT_LOW] = kvm_hyp_handle_iabt_low, ^~~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:207:28: note: previous initialization is here [0 ... ESR_ELx_EC_MAX] = NULL, ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:212:27: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [ESR_ELx_EC_DABT_LOW] = kvm_hyp_handle_dabt_low, ^~~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:207:28: note: previous initialization is here [0 ... ESR_ELx_EC_MAX] = NULL, ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:213:22: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides] [ESR_ELx_EC_PAC] = kvm_hyp_handle_ptrauth, ^~~~~~~~~~~~~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:207:28: note: previous initialization is here [0 ... ESR_ELx_EC_MAX] = NULL, ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ arch/arm64/kvm/hyp/nvhe/switch.c:350:17: warning: no previous prototype for function 'hyp_panic' [-Wmissing-prototypes] void __noreturn hyp_panic(void) ^ arch/arm64/kvm/hyp/nvhe/switch.c:350:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __noreturn hyp_panic(void) ^ static >> arch/arm64/kvm/hyp/nvhe/switch.c:372:17: warning: no previous prototype for function 'hyp_panic_bad_stack' [-Wmissing-prototypes] void __noreturn hyp_panic_bad_stack(void) ^ arch/arm64/kvm/hyp/nvhe/switch.c:372:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __noreturn hyp_panic_bad_stack(void) ^ static arch/arm64/kvm/hyp/nvhe/switch.c:377:17: warning: no previous prototype for function 'kvm_unexpected_el2_exception' [-Wmissing-prototypes] asmlinkage void kvm_unexpected_el2_exception(void) ^ arch/arm64/kvm/hyp/nvhe/switch.c:377:12: note: declare 'static' if the function is not intended to be used outside of this translation unit asmlinkage void kvm_unexpected_el2_exception(void) ^ static 16 warnings generated. vim +/hyp_panic_bad_stack +372 arch/arm64/kvm/hyp/nvhe/switch.c 371 > 372 void __noreturn hyp_panic_bad_stack(void) 373 { 374 hyp_panic(); 375 } 376 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
