Hi Stefan,

[auto build test ERROR on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Stefan-Wahren/net-qualcomm-add-QCA7000-UART-driver/20160920-210908
config: i386-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   drivers/net/ethernet/qualcomm/qca_uart.c: In function 'qcauart_netdev_xmit':

quoted

drivers/net/ethernet/qualcomm/qca_uart.c:302:5: error: 'struct net_device' has no member named 'trans_start'; did you mean 'mem_start'?

     dev->trans_start = jiffies;
        ^~
   drivers/net/ethernet/qualcomm/qca_uart.c: In function 'qcauart_netdev_tx_timeout':
   drivers/net/ethernet/qualcomm/qca_uart.c:314:29: error: 'struct net_device' has no member named 'trans_start'; did you mean 'mem_start'?
          jiffies, jiffies - dev->trans_start);
                                ^~

vim +302 drivers/net/ethernet/qualcomm/qca_uart.c

   296		written = qca->tty->ops->write(qca->tty, qca->xbuff, pos - qca->xbuff);
   297		qca->xleft = (pos - qca->xbuff) - written;
   298		qca->xhead = qca->xbuff + written;
   299		n_stats->tx_bytes += written;
   300		spin_unlock(&qca->lock);
   301	
 > 302		dev->trans_start = jiffies;
   303	out:
   304		kfree_skb(skb);
   305		return NETDEV_TX_OK;

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