Hi Alexandre, kernel test robot noticed the following build warnings: [auto build test WARNING on efi/next] [also build test WARNING on linus/master v6.4-rc5 next-20230606] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Alexandre-Ghiti/riscv-Introduce-virtual-kernel-mapping-KASLR/20230606-203849 base: https://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git next patch link: https://lore.kernel.org/r/20230606123242.20804-4-alexghiti%40rivosinc.com patch subject: [PATCH v3 3/5] arm64: libstub: Move KASLR handling functions to efi-stub-helper.c config: i386-randconfig-i063-20230607 (https://download.01.org/0day-ci/archive/20230607/202306071357.IBYToqAc-lkp@xxxxxxxxx/config) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): mkdir -p ~/bin wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git remote add efi https://git.kernel.org/pub/scm/linux/kernel/git/efi/efi.git git fetch efi next git checkout efi/next b4 shazam https://lore.kernel.org/r/20230606123242.20804-4-alexghiti@xxxxxxxxxxxx # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=i386 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang ~/bin/make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/firmware/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306071357.IBYToqAc-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from drivers/firmware/efi/libstub/x86-stub.c:19: >> drivers/firmware/efi/libstub/efistub.h:1145:59: warning: non-void function does not return a value [-Wreturn-type] static inline unsigned long efi_get_kimg_min_align(void) {} ^ 1 warning generated. -- In file included from drivers/firmware/efi/libstub/efi-stub-helper.c:17: >> drivers/firmware/efi/libstub/efistub.h:1145:59: warning: non-void function does not return a value [-Wreturn-type] static inline unsigned long efi_get_kimg_min_align(void) {} ^ drivers/firmware/efi/libstub/efi-stub-helper.c:867:2: warning: call to undeclared function 'caches_clean_inval_pou'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] caches_clean_inval_pou(*image_addr, *image_addr + kernel_codesize); ^ 2 warnings generated. vim +1145 drivers/firmware/efi/libstub/efistub.h 1143 1144 #ifndef efi_get_kimg_min_align > 1145 static inline unsigned long efi_get_kimg_min_align(void) {} 1146 #define efi_get_kimg_min_align efi_get_kimg_min_align 1147 #endif 1148 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
