[PATCH] xen-netfront: Remove the meaningless code

From: Liang Li
Date: Fri Jun 26 2015 - 07:28:53 EST


The function netif_set_real_num_tx_queues() will return -EINVAL if
the second parameter < 1, so call this function with the second
parameter set to 0 is meaningless.

Signed-off-by: Liang Li <liang.z.li@xxxxxxxxx>
---
drivers/net/xen-netfront.c | 7 -------
1 file changed, 7 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 56d8afd..1807cd1 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1245,10 +1245,6 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev)
np = netdev_priv(netdev);
np->xbdev = dev;

- /* No need to use rtnl_lock() before the call below as it
- * happens before register_netdev().
- */
- netif_set_real_num_tx_queues(netdev, 0);
np->queues = NULL;

err = -ENOMEM;
@@ -1900,9 +1896,6 @@ abort_transaction_no_dev_fatal:
xennet_disconnect_backend(info);
kfree(info->queues);
info->queues = NULL;
- rtnl_lock();
- netif_set_real_num_tx_queues(info->netdev, 0);
- rtnl_unlock();
out:
return err;
}
--
1.9.1

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