Messages in this thread | | | Date | Fri, 28 Jan 2022 09:05:18 +0800 | From | kernel test robot <> | Subject | [ammarfaizi2-block:google/android/kernel/common/android13-5.10 9980/9999] kernel/cfi.c:334:6: warning: no previous prototype for function '__cfi_slowpath' |
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tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android13-5.10 head: 7edc8bc69d7def26c4528360c9ec96dbeadcd0a1 commit: e48efff5cb5fd63a687465347bdbb52ef98dad44 [9980/9999] ANDROID: arch/Kconfig: fix up LTO LLVM_IAS depdency config: arm64-buildonly-randconfig-r006-20220127 (https://download.01.org/0day-ci/archive/20220128/202201280858.mQTzGZcJ-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project f32dccb9a43b02ce4e540d6ba5dbbdb188f2dc7d) 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/ammarfaizi2/linux-block/commit/e48efff5cb5fd63a687465347bdbb52ef98dad44 git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android13-5.10 git checkout e48efff5cb5fd63a687465347bdbb52ef98dad44 # 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
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> kernel/cfi.c:334:6: warning: no previous prototype for function '__cfi_slowpath' [-Wmissing-prototypes] void cfi_slowpath_handler(uint64_t id, void *ptr, void *diag) ^ kernel/cfi.c:25:30: note: expanded from macro 'cfi_slowpath_handler' #define cfi_slowpath_handler __cfi_slowpath ^ kernel/cfi.c:334:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void cfi_slowpath_handler(uint64_t id, void *ptr, void *diag) ^ static kernel/cfi.c:343:6: warning: no previous prototype for function '__ubsan_handle_cfi_check_fail_abort' [-Wmissing-prototypes] void cfi_failure_handler(void *data, void *ptr, void *vtable) ^ kernel/cfi.c:24:29: note: expanded from macro 'cfi_failure_handler' #define cfi_failure_handler __ubsan_handle_cfi_check_fail_abort ^ kernel/cfi.c:343:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void cfi_failure_handler(void *data, void *ptr, void *vtable) ^ static >> kernel/cfi.c:349:6: warning: no previous prototype for function '__cfi_check_fail' [-Wmissing-prototypes] void __cfi_check_fail(void *data, void *ptr) ^ kernel/cfi.c:349:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void __cfi_check_fail(void *data, void *ptr) ^ static 3 warnings generated.
vim +/__cfi_slowpath +334 kernel/cfi.c
2c351bb70ac5e5 Sami Tolvanen 2019-04-25 333 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 @334 void cfi_slowpath_handler(uint64_t id, void *ptr, void *diag) 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 335 { 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 336 handle_cfi_failure(ptr); /* No modules */ 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 337 } 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 338 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 339 #endif /* CONFIG_MODULES */ 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 340 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 341 EXPORT_SYMBOL(cfi_slowpath_handler); 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 342 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 343 void cfi_failure_handler(void *data, void *ptr, void *vtable) 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 344 { 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 345 handle_cfi_failure(ptr); 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 346 } 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 347 EXPORT_SYMBOL(cfi_failure_handler); 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 348 2c351bb70ac5e5 Sami Tolvanen 2019-04-25 @349 void __cfi_check_fail(void *data, void *ptr)
:::::: The code at line 334 was first introduced by commit :::::: 2c351bb70ac5e5212f247a495199042a95b43e38 ANDROID: add support for Clang's Control Flow Integrity (CFI)
:::::: TO: Sami Tolvanen <samitolvanen@google.com> :::::: CC: Alistair Delva <adelva@google.com>
--- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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