target/linux/ar7/patches/900-cpmac_multiqueue.patch

   1 This patch fixes the network driver cpmac.c for compilation with
   2 configuration option CONFIG_NETDEVICES_MULTIQUEUE.
   3
   4 These compiler warnings are fixed by the patch:
   5 drivers/net/cpmac.c: In function 'cpmac_end_xmit':
   6 drivers/net/cpmac.c:630: warning: passing argument 2 of 'netif_subqueue_stopped' makes pointer from integer without a cast
   7 drivers/net/cpmac.c:641: warning: passing argument 2 of 'netif_subqueue_stopped' makes pointer from integer without a cast
   8 drivers/net/cpmac.c: In function 'cpmac_probe':
   9 drivers/net/cpmac.c:1128: warning: unused variable 'i'
  10
  11 During runtime, the unpatched driver raises a fatal runtime exception.
  12 This is fixed by calling __netif_subqueue_stopped instead
  13 of netif_subqueue_stopped, too.
  14
  15 Two additional code parts were modified for CONFIG_NETDEVICES_MULTIQUEUE
  16 because other drivers do it in the same way.
  17
  18         Signed-off-by: Stefan Weil <weil@mail.berlios.de>
  19
  20 --- a/drivers/net/cpmac.c
  21 +++ b/drivers/net/cpmac.c
  22 @@ -615,13 +615,13 @@ static void cpmac_end_xmit(struct net_de
  23
  24                 dev_kfree_skb_irq(desc->skb);
  25                 desc->skb = NULL;
  26 -               if (netif_subqueue_stopped(dev, queue))
  27 +               if (__netif_subqueue_stopped(dev, queue))
  28                         netif_wake_subqueue(dev, queue);
  29         } else {
  30                 if (netif_msg_tx_err(priv) && net_ratelimit())
  31                         printk(KERN_WARNING
  32                                "%s: end_xmit: spurious interrupt\n", dev->name);
  33 -               if (netif_subqueue_stopped(dev, queue))
  34 +               if (__netif_subqueue_stopped(dev, queue))
  35                         netif_wake_subqueue(dev, queue);
  36         }
  37  }
  38 @@ -731,7 +731,6 @@ static void cpmac_clear_tx(struct net_de
  39
  40  static void cpmac_hw_error(struct work_struct *work)
  41  {
  42 -       int i;
  43         struct cpmac_priv *priv =
  44                 container_of(work, struct cpmac_priv, reset_work);
  45
  46 @@ -818,7 +817,6 @@ static irqreturn_t cpmac_irq(int irq, vo
  47
  48  static void cpmac_tx_timeout(struct net_device *dev)
  49  {
  50 -       int i;
  51         struct cpmac_priv *priv = netdev_priv(dev);
  52
  53         spin_lock(&priv->lock);
  54 @@ -1097,7 +1095,7 @@ static int external_switch;
  55
  56  static int __devinit cpmac_probe(struct platform_device *pdev)
  57  {
  58 -       int rc, phy_id, i;
  59 +       int rc, phy_id;
  60         char *mdio_bus_id = "0";
  61         struct resource *mem;
  62         struct cpmac_priv *priv;
  63 @@ -1125,6 +1123,7 @@ static int __devinit cpmac_probe(struct
  64         }
  65
  66         dev = alloc_etherdev_mq(sizeof(*priv), CPMAC_QUEUES);
  67 +       //~ dev = alloc_etherdev(sizeof(*priv));
  68
  69         if (!dev) {
  70                 printk(KERN_ERR "cpmac: Unable to allocate net_device\n");