Re: [PATCH 6/6] staging: octeon: clean up the octeon ethernet driver

[kernel test robot <lkp@intel.com>]

Hi Oliver,

kernel test robot noticed the following build warnings:

[auto build test WARNING on staging/staging-testing]

url:    https://github.com/intel-lab-lkp/linux/commits/Oliver-Crumrine/staging-octeon-clean-up-the-octeon-ethernet-driver/20230828-051802
base:   staging/staging-testing
patch link:    https://lore.kernel.org/r/PH7PR11MB7643F9F5DBB6781022CC4F4DBCE1A%40PH7PR11MB7643.namprd11.prod.outlook.com
patch subject: [PATCH 6/6] staging: octeon: clean up the octeon ethernet driver
config: parisc-allyesconfig (https://download.01.org/0day-ci/archive/20230828/202308280707.qz6xetpa-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20230828/202308280707.qz6xetpa-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308280707.qz6xetpa-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/staging/octeon/ethernet.c: In function 'cvm_oct_common_get_stats':
   drivers/staging/octeon/ethernet.c:204:39: error: storage size of 'rx_status' isn't known
     204 |         struct cvmx_pip_port_status_t rx_status;
         |                                       ^~~~~~~~~
>> drivers/staging/octeon/ethernet.c:204:39: warning: unused variable 'rx_status' [-Wunused-variable]


vim +/rx_status +204 drivers/staging/octeon/ethernet.c

   195	
   196	/**
   197	 * cvm_oct_common_get_stats - get the low level ethernet statistics
   198	 * @dev:    Device to get the statistics from
   199	 *
   200	 * Returns Pointer to the statistics
   201	 */
   202	static struct net_device_stats *cvm_oct_common_get_stats(struct net_device *dev)
   203	{
 > 204		struct cvmx_pip_port_status_t rx_status;
   205		cvmx_pko_port_status_t tx_status;
   206		struct octeon_ethernet *priv = netdev_priv(dev);
   207	
   208		if (priv->port < CVMX_PIP_NUM_INPUT_PORTS) {
   209			if (octeon_is_simulation()) {
   210				/* The simulator doesn't support statistics */
   211				memset(&rx_status, 0, sizeof(rx_status));
   212				memset(&tx_status, 0, sizeof(tx_status));
   213			} else {
   214				cvmx_pip_get_port_status(priv->port, 1, &rx_status);
   215				cvmx_pko_get_port_status(priv->port, 1, &tx_status);
   216			}
   217	
   218			dev->stats.rx_packets += rx_status.inb_packets;
   219			dev->stats.tx_packets += tx_status.packets;
   220			dev->stats.rx_bytes += rx_status.inb_octets;
   221			dev->stats.tx_bytes += tx_status.octets;
   222			dev->stats.multicast += rx_status.multicast_packets;
   223			dev->stats.rx_crc_errors += rx_status.inb_errors;
   224			dev->stats.rx_frame_errors += rx_status.fcs_align_err_packets;
   225			dev->stats.rx_dropped += rx_status.dropped_packets;
   226		}
   227	
   228		return &dev->stats;
   229	}
   230	

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