tree: https://git.kernel.org/pub/scm/linux/kernel/git/bigeasy/staging.git seqcount head: 53a2ea564d8a37a032c879a9e9bfa88b8e0e5ecd commit: 2ed461d3554b6c9a468ee601dfc1152faac92408 [9/10] net: sched: Merge Qdisc::bstats and Qdisc::cpu_bstats data types config: hexagon-randconfig-r041-20211014 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6c76d0101193aa4eb891a6954ff047eda2f9cf71) 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/bigeasy/staging.git/commi... git remote add bigeasy-staging https://git.kernel.org/pub/scm/linux/kernel/git/bigeasy/staging.git git fetch --no-tags bigeasy-staging seqcount git checkout 2ed461d3554b6c9a468ee601dfc1152faac92408 # save the attached .config 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 net/core/ 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 >>): b->bytes = 0; ^ ~ net/core/gen_stats.c:122:13: error: assigning to 'u64_stats_t' from incompatible type 'int' b->packets = 0; ^ ~ 2 errors generated. vim +121 net/core/gen_stats.c ^1da177e4c3f41 Linus Torvalds 2005-04-16 116 34165a95d97fbc Ahmed S. Darwish 2021-09-17 117 #ifdef CONFIG_LOCKDEP 34165a95d97fbc Ahmed S. Darwish 2021-09-17 118 /* Must not be inlined, due to u64_stats seqcount_t lockdep key */ 2ed461d3554b6c Ahmed S. Darwish 2021-09-17 119 void gnet_stats_basic_sync_init(struct gnet_stats_basic_sync *b) 34165a95d97fbc Ahmed S. Darwish 2021-09-17 120 { 34165a95d97fbc Ahmed S. Darwish 2021-09-17 @121 b->bytes = 0; 34165a95d97fbc Ahmed S. Darwish 2021-09-17 122 b->packets = 0; 34165a95d97fbc Ahmed S. Darwish 2021-09-17 123 u64_stats_init(&b->syncp); 34165a95d97fbc Ahmed S. Darwish 2021-09-17 124 } 2ed461d3554b6c Ahmed S. Darwish 2021-09-17 125 EXPORT_SYMBOL(gnet_stats_basic_sync_init); 34165a95d97fbc Ahmed S. Darwish 2021-09-17 126 #endif 34165a95d97fbc Ahmed S. Darwish 2021-09-17 127 :::::: The code at line 121 was first introduced by commit :::::: 34165a95d97fbc4acdb090de432bdda12dfdbed9 net: sched: Protect Qdisc::bstats with u64_stats :::::: TO: Ahmed S. Darwish <a.darwish(a)linutronix.de&gt; :::::: CC: Sebastian Andrzej Siewior <bigeasy(a)linutronix.de&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org