diff options
| author |   Andrey Shvetsov <andrey.shvetsov@k2l.de> | 2017-05-12 12:59:50 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-15 11:59:09 +0200 |
| commit | cf5b36b5d957abd718301dfd3ab03a63221bc145 (patch) | |
| tree | 30191c54540436086368299068c6a99e238b3721 /drivers/staging/most/aim-network/networking.c | |
| parent | staging: most: net: remove useless variable channels_opened (diff) | |
| download | linux-dev-cf5b36b5d957abd718301dfd3ab03a63221bc145.tar.xz linux-dev-cf5b36b5d957abd718301dfd3ab03a63221bc145.zip | |
staging: most: net: use dormant state
This replaces the call of wait_for_completion in case of an invalid MAC
address in the function most_nd_open() with the dormant state of the
network device.
As a side effect, opening the network device cannot fail anymore.
Signed-off-by: Andrey Shvetsov <andrey.shvetsov@k2l.de>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/staging/most/aim-network/networking.c | 31 |
1 files changed, 6 insertions, 25 deletions
diff --git a/drivers/staging/most/aim-network/networking.c b/drivers/staging/most/aim-network/networking.c index 004dd7b636cd..ce2942729ecf 100644 --- a/drivers/staging/most/aim-network/networking.c +++ b/drivers/staging/most/aim-network/networking.c @@ -69,7 +69,6 @@ struct net_dev_context { struct net_device *dev; struct net_dev_channel rx; struct net_dev_channel tx; - struct completion mac_compl; struct list_head list; }; @@ -180,7 +179,6 @@ static int most_nd_set_mac_address(struct net_device *dev, void *p) static int most_nd_open(struct net_device *dev) { struct net_dev_context *nd = dev->ml_priv; - long ret; netdev_info(dev, "open net device\n"); @@ -199,29 +197,13 @@ static int most_nd_open(struct net_device *dev) return -EBUSY; } - if (!is_valid_ether_addr(dev->dev_addr)) { - nd->iface->request_netinfo(nd->iface, nd->tx.ch_id); - ret = wait_for_completion_interruptible_timeout( - &nd->mac_compl, msecs_to_jiffies(5000)); - if (!ret) { - netdev_err(dev, "mac timeout\n"); - ret = -EBUSY; - goto err; - } - - if (ret < 0) { - netdev_warn(dev, "mac waiting interrupted\n"); - goto err; - } - } - + if (is_valid_ether_addr(dev->dev_addr)) + netif_dormant_off(dev); + else + netif_dormant_on(dev); netif_wake_queue(dev); + nd->iface->request_netinfo(nd->iface, nd->tx.ch_id); return 0; - -err: - most_stop_channel(nd->iface, nd->tx.ch_id, &aim); - most_stop_channel(nd->iface, nd->rx.ch_id, &aim); - return ret; } static int most_nd_stop(struct net_device *dev) @@ -337,7 +319,6 @@ static int aim_probe_channel(struct most_interface *iface, int channel_idx, if (!nd) return -ENOMEM; - init_completion(&nd->mac_compl); nd->iface = iface; spin_lock_irqsave(&list_lock, flags); @@ -569,7 +550,7 @@ void most_deliver_netinfo(struct most_interface *iface, netdev_info(dev, "set mac %02x-%02x-%02x-%02x-%02x-%02x\n", m[0], m[1], m[2], m[3], m[4], m[5]); ether_addr_copy(dev->dev_addr, m); - complete(&nd->mac_compl); + netif_dormant_off(dev); } else if (!ether_addr_equal(dev->dev_addr, m)) { netdev_warn(dev, "reject mac %02x-%02x-%02x-%02x-%02x-%02x\n", m[0], m[1], m[2], m[3], m[4], m[5]); |