[kbuild-all] [freescale-fslc:pr/304 15428/18062] include/linux/string.h:399:4: error: call to '__read_overflow2' declared with attribute error: detected read beyond size of object passed as 2nd parameter

Hi Adrian, FYI, the error/warning still remains. tree: https://github.com/Freescale/linux-fslc pr/304 head: ef74b0670bd60adc2dd1050beb13fab998c1969e commit: a452c44357d9c68c27c39327e50b41e4b6cffe8d [15428/18062] MLK-25015: sound: soc: codecs: pcm512x: set input sclk config: powerpc-allyesconfig (attached as .config) compiler: powerpc64-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://github.com/Freescale/linux-fslc/commit/a452c44357d9c68c27c39327e5... git remote add freescale-fslc https://github.com/Freescale/linux-fslc git fetch --no-tags freescale-fslc pr/304 git checkout a452c44357d9c68c27c39327e50b41e4b6cffe8d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc 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 >>): In file included from sound/soc/fsl/imx-pcm512x.c:21: sound/soc/fsl/imx-pcm512x.c:357:23: warning: initialized field overwritten [-Woverride-init] 357 | SND_SOC_DAILINK_REG(hifi), | ^~~~ include/sound/soc.h:919:13: note: in definition of macro 'SND_SOC_DAILINK_REG3' 919 | .codecs = codec, \ | ^~~~~ include/sound/soc.h:924:53: note: in expansion of macro 'SND_SOC_DAILINK_REG1' 924 | #define SND_SOC_DAILINK_REGx(_1, _2, _3, func, ...) func | ^~~~ sound/soc/fsl/imx-pcm512x.c:357:3: note: in expansion of macro 'SND_SOC_DAILINK_REG' 357 | SND_SOC_DAILINK_REG(hifi), | ^~~~~~~~~~~~~~~~~~~ sound/soc/fsl/imx-pcm512x.c:357:23: note: (near initialization for 'imx_pcm512x_dai[0].codecs') 357 | SND_SOC_DAILINK_REG(hifi), | ^~~~ include/sound/soc.h:919:13: note: in definition of macro 'SND_SOC_DAILINK_REG3' 919 | .codecs = codec, \ | ^~~~~ include/sound/soc.h:924:53: note: in expansion of macro 'SND_SOC_DAILINK_REG1' 924 | #define SND_SOC_DAILINK_REGx(_1, _2, _3, func, ...) func | ^~~~ sound/soc/fsl/imx-pcm512x.c:357:3: note: in expansion of macro 'SND_SOC_DAILINK_REG' 357 | SND_SOC_DAILINK_REG(hifi), | ^~~~~~~~~~~~~~~~~~~ In file included from include/linux/list.h:9, from include/linux/module.h:9, from sound/soc/fsl/imx-pcm512x.c:13: include/linux/kernel.h:47:25: warning: initialized field overwritten [-Woverride-init] 47 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) | ^ include/sound/soc.h:920:16: note: in expansion of macro 'ARRAY_SIZE' 920 | .num_codecs = ARRAY_SIZE(codec), \ | ^~~~~~~~~~ include/sound/soc.h:914:37: note: in expansion of macro 'SND_SOC_DAILINK_REG3' 914 | #define SND_SOC_DAILINK_REG1(name) SND_SOC_DAILINK_REG3(name##_cpus, name##_codecs, name##_platforms) | ^~~~~~~~~~~~~~~~~~~~ include/sound/soc.h:924:53: note: in expansion of macro 'SND_SOC_DAILINK_REG1' 924 | #define SND_SOC_DAILINK_REGx(_1, _2, _3, func, ...) func | ^~~~ include/sound/soc.h:926:2: note: in expansion of macro 'SND_SOC_DAILINK_REGx' 926 | SND_SOC_DAILINK_REGx(__VA_ARGS__, \ | ^~~~~~~~~~~~~~~~~~~~ sound/soc/fsl/imx-pcm512x.c:357:3: note: in expansion of macro 'SND_SOC_DAILINK_REG' 357 | SND_SOC_DAILINK_REG(hifi), | ^~~~~~~~~~~~~~~~~~~ include/linux/kernel.h:47:25: note: (near initialization for 'imx_pcm512x_dai[0].num_codecs') 47 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr)) | ^ include/sound/soc.h:920:16: note: in expansion of macro 'ARRAY_SIZE' 920 | .num_codecs = ARRAY_SIZE(codec), \ | ^~~~~~~~~~ include/sound/soc.h:914:37: note: in expansion of macro 'SND_SOC_DAILINK_REG3' 914 | #define SND_SOC_DAILINK_REG1(name) SND_SOC_DAILINK_REG3(name##_cpus, name##_codecs, name##_platforms) | ^~~~~~~~~~~~~~~~~~~~ include/sound/soc.h:924:53: note: in expansion of macro 'SND_SOC_DAILINK_REG1' 924 | #define SND_SOC_DAILINK_REGx(_1, _2, _3, func, ...) func | ^~~~ include/sound/soc.h:926:2: note: in expansion of macro 'SND_SOC_DAILINK_REGx' 926 | SND_SOC_DAILINK_REGx(__VA_ARGS__, \ | ^~~~~~~~~~~~~~~~~~~~ sound/soc/fsl/imx-pcm512x.c:357:3: note: in expansion of macro 'SND_SOC_DAILINK_REG' 357 | SND_SOC_DAILINK_REG(hifi), | ^~~~~~~~~~~~~~~~~~~ In file included from arch/powerpc/include/asm/paca.h:15, from arch/powerpc/include/asm/current.h:13, from include/linux/thread_info.h:21, from include/asm-generic/preempt.h:5, from ./arch/powerpc/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/spinlock.h:51, from include/linux/seqlock.h:36, from include/linux/time.h:6, from include/linux/stat.h:19, from include/linux/module.h:10, from sound/soc/fsl/imx-pcm512x.c:13: In function 'memcpy', inlined from 'imx_pcm512x_probe' at sound/soc/fsl/imx-pcm512x.c:429:2: 399 | __read_overflow2(); | ^~~~~~~~~~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for PCIE_MOBIVEIL_HOST Depends on PCI && PCI_MSI_IRQ_DOMAIN Selected by - PCIE_MOBIVEIL_PLAT && PCI && (ARCH_ZYNQMP || COMPILE_TEST && OF vim +/__read_overflow2 +399 include/linux/string.h 6974f0c4555e28 Daniel Micay 2017-07-12 390 6974f0c4555e28 Daniel Micay 2017-07-12 391 __FORTIFY_INLINE void *memcpy(void *p, const void *q, __kernel_size_t size) 6974f0c4555e28 Daniel Micay 2017-07-12 392 { 6974f0c4555e28 Daniel Micay 2017-07-12 393 size_t p_size = __builtin_object_size(p, 0); 6974f0c4555e28 Daniel Micay 2017-07-12 394 size_t q_size = __builtin_object_size(q, 0); 6974f0c4555e28 Daniel Micay 2017-07-12 395 if (__builtin_constant_p(size)) { 6974f0c4555e28 Daniel Micay 2017-07-12 396 if (p_size < size) 6974f0c4555e28 Daniel Micay 2017-07-12 397 __write_overflow(); 6974f0c4555e28 Daniel Micay 2017-07-12 398 if (q_size < size) 6974f0c4555e28 Daniel Micay 2017-07-12 @399 __read_overflow2(); 6974f0c4555e28 Daniel Micay 2017-07-12 400 } 6974f0c4555e28 Daniel Micay 2017-07-12 401 if (p_size < size || q_size < size) 6974f0c4555e28 Daniel Micay 2017-07-12 402 fortify_panic(__func__); b008ae4cc74d3a Daniel Axtens 2020-06-03 403 return __underlying_memcpy(p, q, size); 6974f0c4555e28 Daniel Micay 2017-07-12 404 } 6974f0c4555e28 Daniel Micay 2017-07-12 405 :::::: The code at line 399 was first introduced by commit :::::: 6974f0c4555e285ab217cee58b6e874f776ff409 include/linux/string.h: add the option of fortified string.h functions :::::: TO: Daniel Micay <danielmicay(a)gmail.com&gt; :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org