Hi David, kernel test robot noticed the following build errors: [auto build test ERROR on linux/master] [also build test ERROR on linus/master v6.10 next-20240725] [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/David-Laight/minmax-Put-all-the-clamp-definitions-together/20240724-224832 base: linux/master patch link: https://lore.kernel.org/r/03601661326c4efba4e618ead15fa0e2%40AcuMS.aculab.com patch subject: [PATCH 4/7] minmax: Simplify signedness check config: mips-loongson1b_defconfig (https://download.01.org/0day-ci/archive/20240725/202407252100.fDFchC5O-lkp@xxxxxxxxx/config) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240725/202407252100.fDFchC5O-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202407252100.fDFchC5O-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> crypto/skcipher.c:83:9: error: static assertion expression is not an integral constant expression return max(start, end_page); ^~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:70:19: note: expanded from macro 'max' #define max(x, y) __careful_cmp(max, x, y) ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:56:3: note: expanded from macro '__careful_cmp' __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y))) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:49:17: note: expanded from macro '__cmp_once' _Static_assert(__types_ok(x, y), \ ^~~~~~~~~~~~~~~~ include/linux/minmax.h:38:2: note: expanded from macro '__types_ok' ((__is_ok_signed(x) && __is_ok_signed(y)) || \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ crypto/skcipher.c:83:9: note: cast that performs the conversions of a reinterpret_cast is not allowed in a constant expression include/linux/minmax.h:70:19: note: expanded from macro 'max' #define max(x, y) __careful_cmp(max, x, y) ^ include/linux/minmax.h:56:3: note: expanded from macro '__careful_cmp' __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y))) ^ include/linux/minmax.h:49:17: note: expanded from macro '__cmp_once' _Static_assert(__types_ok(x, y), \ ^ include/linux/minmax.h:38:4: note: expanded from macro '__types_ok' ((__is_ok_signed(x) && __is_ok_signed(y)) || \ ^ include/linux/minmax.h:34:27: note: expanded from macro '__is_ok_signed' #define __is_ok_signed(x) is_signed_type(typeof((x) + 0)) ^ include/linux/compiler.h:273:32: note: expanded from macro 'is_signed_type' #define is_signed_type(type) (((type)(-1)) < (__force type)1) ^ 1 error generated. -- >> lib/lzo/lzo1x_compress.c:53:33: error: static assertion expression is not an integral constant expression const unsigned char *limit = min(ip_end, ip + MAX_ZERO_RUN_LENGTH + 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:63:19: note: expanded from macro 'min' #define min(x, y) __careful_cmp(min, x, y) ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:56:3: note: expanded from macro '__careful_cmp' __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y))) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:49:17: note: expanded from macro '__cmp_once' _Static_assert(__types_ok(x, y), \ ^~~~~~~~~~~~~~~~ include/linux/minmax.h:38:2: note: expanded from macro '__types_ok' ((__is_ok_signed(x) && __is_ok_signed(y)) || \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ lib/lzo/lzo1x_compress.c:53:33: note: cast that performs the conversions of a reinterpret_cast is not allowed in a constant expression include/linux/minmax.h:63:19: note: expanded from macro 'min' #define min(x, y) __careful_cmp(min, x, y) ^ include/linux/minmax.h:56:3: note: expanded from macro '__careful_cmp' __cmp_once(op, x, y, __UNIQUE_ID(__x), __UNIQUE_ID(__y))) ^ include/linux/minmax.h:49:17: note: expanded from macro '__cmp_once' _Static_assert(__types_ok(x, y), \ ^ include/linux/minmax.h:38:4: note: expanded from macro '__types_ok' ((__is_ok_signed(x) && __is_ok_signed(y)) || \ ^ include/linux/minmax.h:34:27: note: expanded from macro '__is_ok_signed' #define __is_ok_signed(x) is_signed_type(typeof((x) + 0)) ^ include/linux/compiler.h:273:32: note: expanded from macro 'is_signed_type' #define is_signed_type(type) (((type)(-1)) < (__force type)1) ^ 1 error generated. vim +83 crypto/skcipher.c b286d8b1a690667 Herbert Xu 2016-11-22 75 b286d8b1a690667 Herbert Xu 2016-11-22 76 /* Get a spot of the specified length that does not straddle a page. b286d8b1a690667 Herbert Xu 2016-11-22 77 * The caller needs to ensure that there is enough space for this operation. b286d8b1a690667 Herbert Xu 2016-11-22 78 */ b286d8b1a690667 Herbert Xu 2016-11-22 79 static inline u8 *skcipher_get_spot(u8 *start, unsigned int len) b286d8b1a690667 Herbert Xu 2016-11-22 80 { b286d8b1a690667 Herbert Xu 2016-11-22 81 u8 *end_page = (u8 *)(((unsigned long)(start + len - 1)) & PAGE_MASK); b286d8b1a690667 Herbert Xu 2016-11-22 82 b286d8b1a690667 Herbert Xu 2016-11-22 @83 return max(start, end_page); b286d8b1a690667 Herbert Xu 2016-11-22 84 } b286d8b1a690667 Herbert Xu 2016-11-22 85 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
