Hi Nick, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on kdave/for-next] [also build test WARNING on f2fs/dev-test linus/master v5.9-rc5 next-20200915] [cannot apply to cryptodev/master crypto/master squashfs/master] [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] url: https://github.com/0day-ci/linux/commits/Nick-Terrell/Update-to-zstd-1-4-... base: https://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-next config: arm-randconfig-r026-20200916 (attached as .config) compiler: arm-linux-gnueabi-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 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): lib/zstd/compress/fse_compress.c: In function 'FSE_createCTable': 304 | size_t size; | ^~~~ # https://github.com/0day-ci/linux/commit/55f5799ba0242ead6cde3f9cd4d04b2a1... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Nick-Terrell/Update-to-zstd-1-4-6/20200916-114901 git checkout 55f5799ba0242ead6cde3f9cd4d04b2a19384d37 vim +/size +304 lib/zstd/compress/fse_compress.c 301 302 FSE_CTable* FSE_createCTable (unsigned maxSymbolValue, unsigned tableLog) 303 { 305 if (tableLog > FSE_TABLELOG_ABSOLUTE_MAX) tableLog = FSE_TABLELOG_ABSOLUTE_MAX; 306 size = FSE_CTABLE_SIZE_U32 (tableLog, maxSymbolValue) * sizeof(U32); 307 return (FSE_CTable*)ZSTD_malloc(size); 308 } 309 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org