Re: [PATCH v2] Introduce MEN 16Z192-00 CAN controller driver

[kernel test robot]

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-16Z192-00-CAN-controller-driver/20200619-161212
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@xxxxxxxxx>

All warnings (new ones prefixed by >>, old ones prefixed by <<):

>> drivers/net/can/men_z192_can.c:704:6: warning: no previous prototype for 'men_z192_set_can_state' [-Wmissing-prototypes]
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	
 > 704	void men_z192_set_can_state(struct net_device *ndev)
   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	

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