tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f4bc5bbb5fef3cf421ba3485d6d383c27ec473ed commit: 67512a8cf5a730938fdb1e48de33edfef6015e03 MIPS: Avoid macro redefinitions date: 5 months ago config: mips-randconfig-r014-20220209 (https://download.01.org/0day-ci/archive/20220210/202202101304.wJVi3lit-lk...) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project e8bff9ae54a55b4dbfeb6ba55f723abbd81bf494) 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 mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 67512a8cf5a730938fdb1e48de33edfef6015e03 # 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=mips SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): _ASM_MACRO_CRC32(crc32b, 0, 0); ^ arch/mips/crypto/crc32-mips.c:31:46: note: expanded from macro '_ASM_MACRO_CRC32' #define _ASM_MACRO_CRC32(OP, SZ, TYPE) \ ^ arch/mips/include/asm/mipsregs.h:1346:3: note: expanded from macro '\ _ASM_MACRO_3R' ".macro " #OP " " #R1 ", " #R2 ", " #R3 "\n\t" \ ^ arch/mips/crypto/crc32-mips.c:41:1: error: expected identifier or '(' _ASM_MACRO_CRC32(crc32h, 1, 0); ^ arch/mips/crypto/crc32-mips.c:31:46: note: expanded from macro '_ASM_MACRO_CRC32' #define _ASM_MACRO_CRC32(OP, SZ, TYPE) \ ^ arch/mips/include/asm/mipsregs.h:1346:3: note: expanded from macro '\ _ASM_MACRO_3R' ".macro " #OP " " #R1 ", " #R2 ", " #R3 "\n\t" \ ^ arch/mips/crypto/crc32-mips.c:42:1: error: expected identifier or '(' _ASM_MACRO_CRC32(crc32w, 2, 0); ^ arch/mips/crypto/crc32-mips.c:31:46: note: expanded from macro '_ASM_MACRO_CRC32' #define _ASM_MACRO_CRC32(OP, SZ, TYPE) \ ^ arch/mips/include/asm/mipsregs.h:1346:3: note: expanded from macro '\ _ASM_MACRO_3R' ".macro " #OP " " #R1 ", " #R2 ", " #R3 "\n\t" \ ^ arch/mips/crypto/crc32-mips.c:43:1: error: expected identifier or '(' _ASM_MACRO_CRC32(crc32d, 3, 0); ^ arch/mips/crypto/crc32-mips.c:31:46: note: expanded from macro '_ASM_MACRO_CRC32' #define _ASM_MACRO_CRC32(OP, SZ, TYPE) \ ^ arch/mips/include/asm/mipsregs.h:1346:3: note: expanded from macro '\ _ASM_MACRO_3R' ".macro " #OP " " #R1 ", " #R2 ", " #R3 "\n\t" \ ^ arch/mips/crypto/crc32-mips.c:44:1: error: expected identifier or '(' _ASM_MACRO_CRC32(crc32cb, 0, 1); ^ arch/mips/crypto/crc32-mips.c:31:46: note: expanded from macro '_ASM_MACRO_CRC32' #define _ASM_MACRO_CRC32(OP, SZ, TYPE) \ ^ arch/mips/include/asm/mipsregs.h:1346:3: note: expanded from macro '\ _ASM_MACRO_3R' ".macro " #OP " " #R1 ", " #R2 ", " #R3 "\n\t" \ ^ arch/mips/crypto/crc32-mips.c:45:1: error: expected identifier or '(' _ASM_MACRO_CRC32(crc32ch, 1, 1); ^ arch/mips/crypto/crc32-mips.c:31:46: note: expanded from macro '_ASM_MACRO_CRC32' #define _ASM_MACRO_CRC32(OP, SZ, TYPE) \ ^ arch/mips/include/asm/mipsregs.h:1346:3: note: expanded from macro '\ _ASM_MACRO_3R' ".macro " #OP " " #R1 ", " #R2 ", " #R3 "\n\t" \ ^ arch/mips/crypto/crc32-mips.c:46:1: error: expected identifier or '(' _ASM_MACRO_CRC32(crc32cw, 2, 1); ^ arch/mips/crypto/crc32-mips.c:31:46: note: expanded from macro '_ASM_MACRO_CRC32' #define _ASM_MACRO_CRC32(OP, SZ, TYPE) \ ^ arch/mips/include/asm/mipsregs.h:1346:3: note: expanded from macro '\ _ASM_MACRO_3R' ".macro " #OP " " #R1 ", " #R2 ", " #R3 "\n\t" \ ^ arch/mips/crypto/crc32-mips.c:47:1: error: expected identifier or '(' _ASM_MACRO_CRC32(crc32cd, 3, 1); ^ arch/mips/crypto/crc32-mips.c:31:46: note: expanded from macro '_ASM_MACRO_CRC32' #define _ASM_MACRO_CRC32(OP, SZ, TYPE) \ ^ arch/mips/include/asm/mipsregs.h:1346:3: note: expanded from macro '\ _ASM_MACRO_3R' ".macro " #OP " " #R1 ", " #R2 ", " #R3 "\n\t" \ ^ 8 errors generated. vim +40 arch/mips/crypto/crc32-mips.c 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 29 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 30 #ifndef TOOLCHAIN_SUPPORTS_CRC 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 31 #define _ASM_MACRO_CRC32(OP, SZ, TYPE) \ 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 32 _ASM_MACRO_3R(OP, rt, rs, rt2, \ 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 33 ".ifnc \\rt, \\rt2\n\t" \ 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 34 ".error \"invalid operands \\\"" #OP " \\rt,\\rs,\\rt2\\\"\"\n\t" \ 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 35 ".endif\n\t" \ 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 36 _ASM_INSN_IF_MIPS(0x7c00000f | (__rt << 16) | (__rs << 21) | \ 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 37 ((SZ) << 6) | ((TYPE) << 8)) \ 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 38 _ASM_INSN32_IF_MM(0x00000030 | (__rs << 16) | (__rt << 21) | \ 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 39 ((SZ) << 14) | ((TYPE) << 3))) 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 @40 _ASM_MACRO_CRC32(crc32b, 0, 0); 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 41 _ASM_MACRO_CRC32(crc32h, 1, 0); 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 42 _ASM_MACRO_CRC32(crc32w, 2, 0); 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 43 _ASM_MACRO_CRC32(crc32d, 3, 0); 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 44 _ASM_MACRO_CRC32(crc32cb, 0, 1); 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 45 _ASM_MACRO_CRC32(crc32ch, 1, 1); 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 46 _ASM_MACRO_CRC32(crc32cw, 2, 1); 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 47 _ASM_MACRO_CRC32(crc32cd, 3, 1); 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 48 #define _ASM_SET_CRC "" 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 49 #else /* !TOOLCHAIN_SUPPORTS_CRC */ 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 50 #define _ASM_SET_CRC ".set\tcrc\n\t" 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 51 #endif 4a5dc51e93e8046 Marcin Nowakowski 2018-02-09 52 :::::: The code at line 40 was first introduced by commit :::::: 4a5dc51e93e80463010ab4d8d00fc9cb6bc936fa MIPS: crypto: Add crc32 and crc32c hw accelerated module :::::: TO: Marcin Nowakowski <marcin.nowakowski(a)mips.com&gt; :::::: CC: James Hogan <jhogan(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org