Messages in this thread | | | Date | Thu, 22 Sep 2022 19:26:59 +0800 | From | kernel test robot <> | Subject | [ammarfaizi2-block:arm64/linux/for-next/alternatives 7/9] arch/arm64/include/asm/alternative-macros.h:224:2: error: call to undeclared function 'BUILD_BUG_ON'; ISO C99 and later do not support implicit function declarations |
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tree: https://github.com/ammarfaizi2/linux-block arm64/linux/for-next/alternatives head: 0072dc1b53c39fb7c4cfc5c9e5d5a30622198613 commit: 21fb26bfb01ffe0d9a9a967ffe061092128bbffe [7/9] arm64: alternatives: add alternative_has_feature_*() config: arm64-buildonly-randconfig-r006-20220921 (https://download.01.org/0day-ci/archive/20220922/202209221916.DuPaZviq-lkp@intel.com/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920) 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/21fb26bfb01ffe0d9a9a967ffe061092128bbffe git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block arm64/linux/for-next/alternatives git checkout 21fb26bfb01ffe0d9a9a967ffe061092128bbffe # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 prepare
If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@intel.com>
Note: the ammarfaizi2-block/arm64/linux/for-next/alternatives HEAD 0072dc1b53c39fb7c4cfc5c9e5d5a30622198613 builds fine. It only hurts bisectability.
All errors (new ones prefixed by >>):
In file included from kernel/bounds.c:10: In file included from include/linux/page-flags.h:10: In file included from include/linux/bug.h:5: In file included from arch/arm64/include/asm/bug.h:26: In file included from include/asm-generic/bug.h:5: In file included from include/linux/compiler.h:248: In file included from arch/arm64/include/asm/rwonce.h:11: >> arch/arm64/include/asm/alternative-macros.h:224:2: error: call to undeclared function 'BUILD_BUG_ON'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] BUILD_BUG_ON(feature >= ARM64_NCAPS); ^ arch/arm64/include/asm/alternative-macros.h:241:2: error: call to undeclared function 'BUILD_BUG_ON'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] BUILD_BUG_ON(feature >= ARM64_NCAPS); ^ 2 errors generated. make[2]: *** [scripts/Makefile.build:117: kernel/bounds.s] Error 1 make[2]: Target '__build' not remade because of errors. make[1]: *** [Makefile:1205: prepare0] Error 2 make[1]: Target 'prepare' not remade because of errors. make: *** [Makefile:222: __sub-make] Error 2 make: Target 'prepare' not remade because of errors.
vim +/BUILD_BUG_ON +224 arch/arm64/include/asm/alternative-macros.h
220 221 static __always_inline bool 222 alternative_has_feature_likely(unsigned long feature) 223 { > 224 BUILD_BUG_ON(feature >= ARM64_NCAPS); 225 226 asm_volatile_goto( 227 ALTERNATIVE("b %l[l_no]", "nop", %[feature]) 228 : 229 : [feature] "i" (feature) 230 : 231 : l_no); 232 233 return true; 234 l_no: 235 return false; 236 } 237
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