tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 93bf8b946e5f9a0b0c68155597b53fd8ccce2827 commit: 1068f9c7eade6a755a2fe3b60b9941cf44ee2888 [4298/4500] string.h: move fortified functions definitions in a dedicated header. config: s390-randconfig-r013-20210118 (attached as .config) compiler: s390-linux-gcc (GCC) 9.3.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=1068f9c7eade6a755a2fe3b60b9941cf44ee2888 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 1068f9c7eade6a755a2fe3b60b9941cf44ee2888 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=s390 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): lib/zstd/decompress.c:126:12: warning: no previous prototype for 'ZSTD_createDCtx_advanced' [-Wmissing-prototypes] 126 | ZSTD_DCtx *ZSTD_createDCtx_advanced(ZSTD_customMem customMem) | ^~~~~~~~~~~~~~~~~~~~~~~~ lib/zstd/decompress.c:394:8: warning: no previous prototype for 'ZSTD_getcBlockSize' [-Wmissing-prototypes] 394 | size_t ZSTD_getcBlockSize(const void *src, size_t srcSize, blockProperties_t *bpPtr) | ^~~~~~~~~~~~~~~~~~ lib/zstd/decompress.c:432:8: warning: no previous prototype for 'ZSTD_decodeLiteralsBlock' [-Wmissing-prototypes] 432 | size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx *dctx, const void *src, size_t srcSize) /* note : srcSize < BLOCKSIZE */ | ^~~~~~~~~~~~~~~~~~~~~~~~ lib/zstd/decompress.c:794:8: warning: no previous prototype for 'ZSTD_decodeSeqHeaders' [-Wmissing-prototypes] 794 | size_t ZSTD_decodeSeqHeaders(ZSTD_DCtx *dctx, int *nbSeqPtr, const void *src, size_t srcSize) | ^~~~~~~~~~~~~~~~~~~~~ lib/zstd/decompress.c:1497:8: warning: no previous prototype for 'ZSTD_generateNxBytes' [-Wmissing-prototypes] 1497 | size_t ZSTD_generateNxBytes(void *dst, size_t dstCapacity, BYTE byte, size_t length) | ^~~~~~~~~~~~~~~~~~~~ In file included from lib/zstd/decompress.c:35: lib/zstd/zstd_internal.h:124:18: warning: 'OF_defaultNormLog' defined but not used [-Wunused-const-variable=] 124 | static const U32 OF_defaultNormLog = OF_DEFAULTNORMLOG; | ^~~~~~~~~~~~~~~~~ lib/zstd/zstd_internal.h:122:18: warning: 'OF_defaultNorm' defined but not used [-Wunused-const-variable=] 122 | static const S16 OF_defaultNorm[MaxOff + 1] = {1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1}; | ^~~~~~~~~~~~~~ lib/zstd/zstd_internal.h:120:18: warning: 'ML_defaultNormLog' defined but not used [-Wunused-const-variable=] 120 | static const U32 ML_defaultNormLog = ML_DEFAULTNORMLOG; | ^~~~~~~~~~~~~~~~~ lib/zstd/zstd_internal.h:117:18: warning: 'ML_defaultNorm' defined but not used [-Wunused-const-variable=] 117 | static const S16 ML_defaultNorm[MaxML + 1] = {1, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, | ^~~~~~~~~~~~~~ lib/zstd/zstd_internal.h:113:18: warning: 'LL_defaultNormLog' defined but not used [-Wunused-const-variable=] 113 | static const U32 LL_defaultNormLog = LL_DEFAULTNORMLOG; | ^~~~~~~~~~~~~~~~~ lib/zstd/zstd_internal.h:111:18: warning: 'LL_defaultNorm' defined but not used [-Wunused-const-variable=] 111 | static const S16 LL_defaultNorm[MaxLL + 1] = {4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 1, 1, 1, 1, 1, -1, -1, -1, -1}; | ^~~~~~~~~~~~~~ In file included from include/linux/string.h:269, from lib/zstd/mem.h:24, from lib/zstd/bitstream.h:54, from lib/zstd/fse.h:228, from lib/zstd/decompress.c:32: In function 'memcpy', inlined from 'ZSTD_decompressContinue' at lib/zstd/decompress.c:416:2, inlined from 'ZSTD_decompressStream' at lib/zstd/decompress.c:2354:5: >> include/linux/fortify-string.h:20:29: warning: argument 1 null where non-null expected [-Wnonnull] 20 | #define __underlying_memcpy __builtin_memcpy | ^ include/linux/fortify-string.h:191:9: note: in expansion of macro '__underlying_memcpy' 191 | return __underlying_memcpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~ lib/zstd/decompress.c: In function 'ZSTD_decompressStream': include/linux/fortify-string.h:20:29: note: in a call to built-in function '__builtin_memcpy' 20 | #define __underlying_memcpy __builtin_memcpy | ^ include/linux/fortify-string.h:191:9: note: in expansion of macro '__underlying_memcpy' 191 | return __underlying_memcpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~ In function 'memset', inlined from 'ZSTD_decompressContinue' at lib/zstd/decompress.c:426:2, inlined from 'ZSTD_decompressStream' at lib/zstd/decompress.c:2354:5: include/linux/fortify-string.h:22:29: warning: argument 1 null where non-null expected [-Wnonnull] 22 | #define __underlying_memset __builtin_memset | ^ include/linux/fortify-string.h:175:9: note: in expansion of macro '__underlying_memset' 175 | return __underlying_memset(p, c, size); | ^~~~~~~~~~~~~~~~~~~ lib/zstd/decompress.c: In function 'ZSTD_decompressStream': include/linux/fortify-string.h:22:29: note: in a call to built-in function '__builtin_memset' 22 | #define __underlying_memset __builtin_memset | ^ include/linux/fortify-string.h:175:9: note: in expansion of macro '__underlying_memset' 175 | return __underlying_memset(p, c, size); | ^~~~~~~~~~~~~~~~~~~ In function 'memcpy', inlined from 'ZSTD_decompressContinue' at lib/zstd/decompress.c:416:2, inlined from 'ZSTD_decompressStream' at lib/zstd/decompress.c:2357:6: >> include/linux/fortify-string.h:20:29: warning: argument 1 null where non-null expected [-Wnonnull] 20 | #define __underlying_memcpy __builtin_memcpy | ^ include/linux/fortify-string.h:191:9: note: in expansion of macro '__underlying_memcpy' 191 | return __underlying_memcpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~ lib/zstd/decompress.c: In function 'ZSTD_decompressStream': include/linux/fortify-string.h:20:29: note: in a call to built-in function '__builtin_memcpy' 20 | #define __underlying_memcpy __builtin_memcpy | ^ include/linux/fortify-string.h:191:9: note: in expansion of macro '__underlying_memcpy' 191 | return __underlying_memcpy(p, q, size); | ^~~~~~~~~~~~~~~~~~~ In function 'memset', inlined from 'ZSTD_decompressContinue' at lib/zstd/decompress.c:426:2, inlined from 'ZSTD_decompressStream' at lib/zstd/decompress.c:2357:6: include/linux/fortify-string.h:22:29: warning: argument 1 null where non-null expected [-Wnonnull] 22 | #define __underlying_memset __builtin_memset | ^ include/linux/fortify-string.h:175:9: note: in expansion of macro '__underlying_memset' 175 | return __underlying_memset(p, c, size); | ^~~~~~~~~~~~~~~~~~~ lib/zstd/decompress.c: In function 'ZSTD_decompressStream': include/linux/fortify-string.h:22:29: note: in a call to built-in function '__builtin_memset' 22 | #define __underlying_memset __builtin_memset | ^ include/linux/fortify-string.h:175:9: note: in expansion of macro '__underlying_memset' 175 | return __underlying_memset(p, c, size); | ^~~~~~~~~~~~~~~~~~~ vim +20 include/linux/fortify-string.h 4 5 6 #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) 7 extern void *__underlying_memchr(const void *p, int c, __kernel_size_t size) __RENAME(memchr); 8 extern int __underlying_memcmp(const void *p, const void *q, __kernel_size_t size) __RENAME(memcmp); 9 extern void *__underlying_memcpy(void *p, const void *q, __kernel_size_t size) __RENAME(memcpy); 10 extern void *__underlying_memmove(void *p, const void *q, __kernel_size_t size) __RENAME(memmove); 11 extern void *__underlying_memset(void *p, int c, __kernel_size_t size) __RENAME(memset); 12 extern char *__underlying_strcat(char *p, const char *q) __RENAME(strcat); 13 extern char *__underlying_strcpy(char *p, const char *q) __RENAME(strcpy); 14 extern __kernel_size_t __underlying_strlen(const char *p) __RENAME(strlen); 15 extern char *__underlying_strncat(char *p, const char *q, __kernel_size_t count) __RENAME(strncat); 16 extern char *__underlying_strncpy(char *p, const char *q, __kernel_size_t size) __RENAME(strncpy); 17 #else 18 #define __underlying_memchr __builtin_memchr 19 #define __underlying_memcmp __builtin_memcmp > 20 #define __underlying_memcpy __builtin_memcpy 21 #define __underlying_memmove __builtin_memmove 22 #define __underlying_memset __builtin_memset 23 #define __underlying_strcat __builtin_strcat 24 #define __underlying_strcpy __builtin_strcpy 25 #define __underlying_strlen __builtin_strlen 26 #define __underlying_strncat __builtin_strncat 27 #define __underlying_strncpy __builtin_strncpy 28 #endif 29 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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