tree: https://github.com/norov/linux bm-new head: 3d638c6d3a8a02375f51842f10dd505b91a11c37 commit: feaa500586b1f91d6eeb746885a775a38ac727eb [5/12] rework bitmap_weight config: hexagon-randconfig-r045-20211208 (https://download.01.org/0day-ci/archive/20211209/202112090503.OzaTxG8D-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 097a1cb1d5ebb3a0ec4bcaed8ba3ff6a8e33c00a) 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/norov/linux/commit/feaa500586b1f91d6eeb746885a775a38ac... git remote add norov https://github.com/norov/linux git fetch --no-tags norov bm-new git checkout feaa500586b1f91d6eeb746885a775a38ac727eb # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash drivers/memstick/core/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the norov/bm-new HEAD 3d638c6d3a8a02375f51842f10dd505b91a11c37 builds fine. It only hurts bisectability. All errors (new ones prefixed by >>): return 0; ^ drivers/memstick/core/ms_block.c:158:5: note: to match this '(' if (bitmap_weight_eq(msb->used_blocks_bitmap, msb->block_count, ^ 1 error generated. vim +160 drivers/memstick/core/ms_block.c 0ab30494bc4f3b Maxim Levitsky 2013-09-11 145 0ab30494bc4f3b Maxim Levitsky 2013-09-11 146 /* Debug test to validate free block counts */ 0ab30494bc4f3b Maxim Levitsky 2013-09-11 147 static int msb_validate_used_block_bitmap(struct msb_data *msb) 0ab30494bc4f3b Maxim Levitsky 2013-09-11 148 { 0ab30494bc4f3b Maxim Levitsky 2013-09-11 149 int total_free_blocks = 0; 0ab30494bc4f3b Maxim Levitsky 2013-09-11 150 int i; 0ab30494bc4f3b Maxim Levitsky 2013-09-11 151 0ab30494bc4f3b Maxim Levitsky 2013-09-11 152 if (!debug) 0ab30494bc4f3b Maxim Levitsky 2013-09-11 153 return 0; 0ab30494bc4f3b Maxim Levitsky 2013-09-11 154 0ab30494bc4f3b Maxim Levitsky 2013-09-11 155 for (i = 0; i < msb->zone_count; i++) 0ab30494bc4f3b Maxim Levitsky 2013-09-11 156 total_free_blocks += msb->free_block_count[i]; 0ab30494bc4f3b Maxim Levitsky 2013-09-11 157 feaa500586b1f9 Yury Norov 2021-12-07 158 if (bitmap_weight_eq(msb->used_blocks_bitmap, msb->block_count, feaa500586b1f9 Yury Norov 2021-12-07 159 msb->block_count - total_free_blocks) 0ab30494bc4f3b Maxim Levitsky 2013-09-11 @160 return 0; 0ab30494bc4f3b Maxim Levitsky 2013-09-11 161 0ab30494bc4f3b Maxim Levitsky 2013-09-11 162 pr_err("BUG: free block counts don't match the bitmap"); 0ab30494bc4f3b Maxim Levitsky 2013-09-11 163 msb->read_only = true; 0ab30494bc4f3b Maxim Levitsky 2013-09-11 164 return -EINVAL; 0ab30494bc4f3b Maxim Levitsky 2013-09-11 165 } 0ab30494bc4f3b Maxim Levitsky 2013-09-11 166 :::::: The code at line 160 was first introduced by commit :::::: 0ab30494bc4f3bc1ea4659b7c5d97c5218554a63 memstick: add support for legacy memorysticks :::::: TO: Maxim Levitsky <maximlevitsky(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