tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: b4bb878f3eb3e604ebfe83bbc17eb7af8d99cbf4 commit: 7340e2100765f1fbfca3a83a6c45f4609bdf9e94 [4354/4407] Merge remote-tracking branch 'usb/usb-next' config: openrisc-randconfig-r015-20210119 (attached as .config) compiler: or1k-linux-gcc (GCC) 9.3.0 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/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 7340e2100765f1fbfca3a83a6c45f4609bdf9e94 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=openrisc 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 >>): vim +20 drivers/usb/dwc3/dwc3-imx8mp.c 6dd2565989b4dca0 Li Jun 2020-12-29 18 6dd2565989b4dca0 Li Jun 2020-12-29 19 /* USB wakeup registers */ 6dd2565989b4dca0 Li Jun 2020-12-29 @20 #define USB_WAKEUP_CTRL 0x00 6dd2565989b4dca0 Li Jun 2020-12-29 21 :::::: The code at line 20 was first introduced by commit :::::: 6dd2565989b4dca09eeae45a3694ec533c6a99c0 usb: dwc3: add imx8mp dwc3 glue layer driver :::::: TO: Li Jun <jun.li(a)nxp.com&gt; :::::: CC: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org