tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 6a37ebbe07bf72cd5fd791d67a664f37c8f17a13 commit: ecea7adad80d9d230df766345e5f8061792da00d [6206/13220] lib: zstd: Upgrade to latest upstream zstd version 1.4.10 config: hexagon-buildonly-randconfig-r005-20211012 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c3dcf39554dbea780d6cb7e12239451ba47a2668) 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=ecea7adad80d9d230df766345e5f8061792da00d 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 ecea7adad80d9d230df766345e5f8061792da00d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=hexagon If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> lib/zstd/compress/zstd_compress_superblock.c:413:12: error: variable 'litLengthSum' set but not used [-Werror,-Wunused-but-set-variable] size_t litLengthSum = 0; ^ 1 error generated. vim +/litLengthSum +413 lib/zstd/compress/zstd_compress_superblock.c 407 408 static size_t ZSTD_seqDecompressedSize(seqStore_t const* seqStore, const seqDef* sequences, size_t nbSeq, size_t litSize, int lastSequence) { 409 const seqDef* const sstart = sequences; 410 const seqDef* const send = sequences + nbSeq; 411 const seqDef* sp = sstart; 412 size_t matchLengthSum = 0; > 413 size_t litLengthSum = 0; 414 while (send-sp > 0) { 415 ZSTD_sequenceLength const seqLen = ZSTD_getSequenceLength(seqStore, sp); 416 litLengthSum += seqLen.litLength; 417 matchLengthSum += seqLen.matchLength; 418 sp++; 419 } 420 assert(litLengthSum <= litSize); 421 if (!lastSequence) { 422 assert(litLengthSum == litSize); 423 } 424 return matchLengthSum + litSize; 425 } 426 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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