Hi Sean, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 42eb8fdac2fc5d62392dcfcf0253753e821a97b0 commit: 48fab5bbef4092d925ab3214773ad12e68807223 mt76: mt7921: introduce mt7921s support date: 4 weeks ago config: x86_64-randconfig-a006-20211118 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project c46becf500df2a7fb4b4fce16178a036c344315a) 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/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 48fab5bbef4092d925ab3214773ad12e68807223 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64 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 >>): int i, queued; ^ 1 warning generated. vim +/queued +77 drivers/net/wireless/mediatek/mt76/debugfs.c 17f1de56df0512 Felix Fietkau 2017-11-21 73 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 74 static int mt76_rx_queues_read(struct seq_file *s, void *data) 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 75 { 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 76 struct mt76_dev *dev = dev_get_drvdata(s->private); 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 @77 int i, queued; 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 78 2d8be76c16746f Lorenzo Bianconi 2021-09-25 79 seq_puts(s, " queue | hw-queued | head | tail |\n"); f473b42ac516be Felix Fietkau 2020-05-24 80 mt76_for_each_q_rx(dev, i) { 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 81 struct mt76_queue *q = &dev->q_rx[i]; 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 82 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 83 queued = mt76_is_usb(dev) ? q->ndesc - q->queued : q->queued; 2d8be76c16746f Lorenzo Bianconi 2021-09-25 84 seq_printf(s, " %9d | %9d | %9d | %9d |\n", 2d8be76c16746f Lorenzo Bianconi 2021-09-25 85 i, q->queued, q->head, q->tail); 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 86 } 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 87 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 88 return 0; 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 89 } 6ea62c50792c6a Lorenzo Bianconi 2020-04-19 90 :::::: The code at line 77 was first introduced by commit :::::: 6ea62c50792c6ad8b283c02d19f4304c7f3a3ccf mt76: add rx queues info to mt76 debugfs :::::: TO: Lorenzo Bianconi <lorenzo(a)kernel.org&gt; :::::: CC: Felix Fietkau <nbd(a)nbd.name&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org