tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 0aea6d5c5be33ce94c16f9ab2f64de1f481f424b commit: c6bf20109a3fae92402cb76ad709ec5256bcd169 mt76: mt7615: add WoW support date: 9 weeks ago config: arm-randconfig-r001-20200713 (attached as .config) compiler: clang version 11.0.0 (https://github.com/llvm/llvm-project 02946de3802d3bc65bc9f2eb9b8d4969b5a7add8) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi git checkout c6bf20109a3fae92402cb76ad709ec5256bcd169 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang 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 >>): static const struct wiphy_wowlan_support mt7615_wowlan_support = { ^ 1 warning generated. vim +/mt7615_wowlan_support +1839 drivers/net/wireless/mediatek/mt76/mt7615/mcu.c 1838 1840 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT, 1841 .n_patterns = 1, 1842 .pattern_min_len = 1, 1843 .pattern_max_len = MT7615_WOW_PATTEN_MAX_LEN, 1844 }; 1845 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org