tree:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
head:   b5fe11663b48ca267829b34a65b4133e4e34c993
commit: 1f4098ea671b092af3806789d89e278e1f08e222 [4/11] mlx4: use new txqueue timeout argument
config: sparc64-allmodconfig (attached as .config)
compiler: sparc64-linux-gcc (GCC) 7.5.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 1f4098ea671b092af3806789d89e278e1f08e222
        # save the attached .config to linux build tree
        GCC_VERSION=7.5.0 make.cross ARCH=sparc64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from drivers/net/ethernet/mellanox/mlx4/en_netdev.c:50:0:
   drivers/net/ethernet/mellanox/mlx4/en_netdev.c: In function 'mlx4_en_tx_timeout':
>> drivers/net/ethernet/mellanox/mlx4/en_netdev.c:1376:12: error: 'tx_ring' undeclared (first use in this function); did you mean 'en_print'?
      txqueue, tx_ring->qpn, tx_ring->sp_cqn,
               ^
   drivers/net/ethernet/mellanox/mlx4/mlx4_en.h:830:41: note: in definition of macro 'en_warn'
     en_print(KERN_WARNING, priv, format, ##__VA_ARGS__)
                                            ^~~~~~~~~~~
   drivers/net/ethernet/mellanox/mlx4/en_netdev.c:1376:12: note: each undeclared identifier is reported only once for each function it appears in
      txqueue, tx_ring->qpn, tx_ring->sp_cqn,
               ^
   drivers/net/ethernet/mellanox/mlx4/mlx4_en.h:830:41: note: in definition of macro 'en_warn'
     en_print(KERN_WARNING, priv, format, ##__VA_ARGS__)
                                            ^~~~~~~~~~~
   drivers/net/ethernet/mellanox/mlx4/en_netdev.c:1370:6: warning: unused variable 'i' [-Wunused-variable]
     int i;
         ^

vim +1376 drivers/net/ethernet/mellanox/mlx4/en_netdev.c

  1365	
  1366	static void mlx4_en_tx_timeout(struct net_device *dev, unsigned int txqueue)
  1367	{
  1368		struct mlx4_en_priv *priv = netdev_priv(dev);
  1369		struct mlx4_en_dev *mdev = priv->mdev;
  1370		int i;
  1371	
  1372		if (netif_msg_timer(priv))
  1373			en_warn(priv, "Tx timeout called on port:%d\n", priv->port);
  1374	
  1375		en_warn(priv, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n",
> 1376			txqueue, tx_ring->qpn, tx_ring->sp_cqn,
  1377			tx_ring->cons, tx_ring->prod);
  1378	
  1379		priv->port_stats.tx_timeout++;
  1380		en_dbg(DRV, priv, "Scheduling watchdog\n");
  1381		queue_work(mdev->workqueue, &priv->watchdog_task);
  1382	}
  1383	

---
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