tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: ad347abe4a9876b1f65f408ab467137e88f77eb4 commit: 02c587733c8161355a43e6e110c2e29bd0acff72 kasan: remove redundant config option date: 8 weeks ago config: x86_64-randconfig-a002-20210612 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project d2012d965d60c3258b3a69d024491698f8aec386) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # 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 02c587733c8161355a43e6e110c2e29bd0acff72 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross 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 >>): static void rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev) ^ 1 warning generated. vim +/rt2800_init_rfcsr +9012 drivers/net/wireless/ralink/rt2x00/rt2800lib.c 41977e86c984fc drivers/net/wireless/ralink/rt2x00/rt2800lib.c Roman Yeryomin 2017-03-21 9011 074f25295b78dc drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2013-04-17 @9012 static void rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev) d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9013 { d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9014 if (rt2800_is_305x_soc(rt2x00dev)) { d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9015 rt2800_init_rfcsr_305x_soc(rt2x00dev); 074f25295b78dc drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2013-04-17 9016 return; d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9017 } d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9018 d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9019 switch (rt2x00dev->chip.rt) { d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9020 case RT3070: d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9021 case RT3071: d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9022 case RT3090: d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9023 rt2800_init_rfcsr_30xx(rt2x00dev); d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9024 break; d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9025 case RT3290: d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9026 rt2800_init_rfcsr_3290(rt2x00dev); d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9027 break; d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9028 case RT3352: d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9029 rt2800_init_rfcsr_3352(rt2x00dev); d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9030 break; d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9031 case RT3390: d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9032 rt2800_init_rfcsr_3390(rt2x00dev); d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9033 break; d0e61a0f7cca51 drivers/net/wireless/ralink/rt2x00/rt2800lib.c Gabor Juhos 2019-04-24 9034 case RT3883: d0e61a0f7cca51 drivers/net/wireless/ralink/rt2x00/rt2800lib.c Gabor Juhos 2019-04-24 9035 rt2800_init_rfcsr_3883(rt2x00dev); d0e61a0f7cca51 drivers/net/wireless/ralink/rt2x00/rt2800lib.c Gabor Juhos 2019-04-24 9036 break; d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9037 case RT3572: d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9038 rt2800_init_rfcsr_3572(rt2x00dev); d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9039 break; ab7078ac3d920e drivers/net/wireless/rt2x00/rt2800lib.c Gabor Juhos 2013-07-08 9040 case RT3593: ab7078ac3d920e drivers/net/wireless/rt2x00/rt2800lib.c Gabor Juhos 2013-07-08 9041 rt2800_init_rfcsr_3593(rt2x00dev); ab7078ac3d920e drivers/net/wireless/rt2x00/rt2800lib.c Gabor Juhos 2013-07-08 9042 break; 98e71f44c51d0a drivers/net/wireless/ralink/rt2x00/rt2800lib.c Serge Vasilugin 2017-01-20 9043 case RT5350: 98e71f44c51d0a drivers/net/wireless/ralink/rt2x00/rt2800lib.c Serge Vasilugin 2017-01-20 9044 rt2800_init_rfcsr_5350(rt2x00dev); 98e71f44c51d0a drivers/net/wireless/ralink/rt2x00/rt2800lib.c Serge Vasilugin 2017-01-20 9045 break; d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9046 case RT5390: d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9047 rt2800_init_rfcsr_5390(rt2x00dev); d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9048 break; d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9049 case RT5392: d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9050 rt2800_init_rfcsr_5392(rt2x00dev); d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9051 break; 0c9e5fb9190ac4 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2013-03-16 9052 case RT5592: 0c9e5fb9190ac4 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2013-03-16 9053 rt2800_init_rfcsr_5592(rt2x00dev); 074f25295b78dc drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2013-04-17 9054 break; 41977e86c984fc drivers/net/wireless/ralink/rt2x00/rt2800lib.c Roman Yeryomin 2017-03-21 9055 case RT6352: 41977e86c984fc drivers/net/wireless/ralink/rt2x00/rt2800lib.c Roman Yeryomin 2017-03-21 9056 rt2800_init_rfcsr_6352(rt2x00dev); 41977e86c984fc drivers/net/wireless/ralink/rt2x00/rt2800lib.c Roman Yeryomin 2017-03-21 9057 break; d5374ef13ebda6 drivers/net/wireless/rt2x00/rt2800lib.c Stanislaw Gruszka 2012-12-12 9058 } fcf5154118849c drivers/net/wireless/rt2x00/rt2800lib.c Bartlomiej Zolnierkiewicz 2009-11-04 9059 } b9a07ae9d9e096 drivers/net/wireless/rt2x00/rt2800lib.c Ivo van Doorn 2010-08-23 9060 :::::: The code at line 9012 was first introduced by commit :::::: 074f25295b78dca7a0f65b87a16bebe493aab4f9 rt2800: cleanup rt2800_init_rfcsr :::::: TO: Stanislaw Gruszka <stf_xl(a)wp.pl&gt; :::::: CC: John W. Linville <linville(a)tuxdriver.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org