Hi Abhijeet, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.8-rc1 next-20200618] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Abhijeet-Badurkar/Introduce-MEN-... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 5e857ce6eae7ca21b2055cca4885545e29228fe2 config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-13) 9.3.0 reproduce (this is a W=1 build): # save the attached .config to linux build tree make W=1 ARCH=i386 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 >>, old ones prefixed by <<): 704 | void men_z192_set_can_state(struct net_device *ndev) | ^~~~~~~~~~~~~~~~~~~~~~ vim +/men_z192_set_can_state +704 drivers/net/can/men_z192_can.c 703 705 { 706 struct men_z192 *priv = netdev_priv(ndev); 707 struct men_z192_regs __iomem *regs = priv->regs; 708 enum can_state rx_state, tx_state; 709 u32 status; 710 711 status = readl(&regs->rx_tx_sts); 712 713 rx_state = bus_state_map[MEN_Z192_GET_RSTATE(status)]; 714 tx_state = bus_state_map[MEN_Z192_GET_TSTATE(status)]; 715 716 can_change_state(ndev, NULL, tx_state, rx_state); 717 } 718 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org