diff options
Diffstat (limited to 'arch/xtensa/platforms/iss/network.c')
| -rw-r--r-- | arch/xtensa/platforms/iss/network.c | 70 |
1 files changed, 32 insertions, 38 deletions
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c index fd84d4891758..e89f27f2bb18 100644 --- a/arch/xtensa/platforms/iss/network.c +++ b/arch/xtensa/platforms/iss/network.c @@ -37,10 +37,6 @@ #define ETH_HEADER_OTHER 14 #define ISS_NET_TIMER_VALUE (HZ / 10) - -static DEFINE_SPINLOCK(devices_lock); -static LIST_HEAD(devices); - /* ------------------------------------------------------------------------- */ /* We currently only support the TUNTAP transport protocol. */ @@ -70,8 +66,6 @@ struct iss_net_ops { /* This structure contains out private information for the driver. */ struct iss_net_private { - struct list_head device_list; - spinlock_t lock; struct net_device *dev; struct platform_device pdev; @@ -207,7 +201,7 @@ static int tuntap_write(struct iss_net_private *lp, struct sk_buff **skb) return simc_write(lp->tp.info.tuntap.fd, (*skb)->data, (*skb)->len); } -unsigned short tuntap_protocol(struct sk_buff *skb) +static unsigned short tuntap_protocol(struct sk_buff *skb) { return eth_type_trans(skb, skb->dev); } @@ -243,7 +237,7 @@ static int tuntap_probe(struct iss_net_private *lp, int index, char *init) init += sizeof(TRANSPORT_TUNTAP_NAME) - 1; if (*init == ',') { - rem = split_if_spec(init + 1, &mac_str, &dev_name); + rem = split_if_spec(init + 1, &mac_str, &dev_name, NULL); if (rem != NULL) { pr_err("%s: extra garbage on specification : '%s'\n", dev->name, rem); @@ -447,7 +441,7 @@ static int iss_net_change_mtu(struct net_device *dev, int new_mtu) return -EINVAL; } -void iss_net_user_timer_expire(struct timer_list *unused) +static void iss_net_user_timer_expire(struct timer_list *unused) { } @@ -472,23 +466,30 @@ static const struct net_device_ops iss_netdev_ops = { .ndo_set_rx_mode = iss_net_set_multicast_list, }; -static int iss_net_configure(int index, char *init) +static void iss_net_pdev_release(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct iss_net_private *lp = + container_of(pdev, struct iss_net_private, pdev); + + free_netdev(lp->dev); +} + +static void iss_net_configure(int index, char *init) { struct net_device *dev; struct iss_net_private *lp; - int err; dev = alloc_etherdev(sizeof(*lp)); if (dev == NULL) { pr_err("eth_configure: failed to allocate device\n"); - return 1; + return; } /* Initialize private element. */ lp = netdev_priv(dev); *lp = (struct iss_net_private) { - .device_list = LIST_HEAD_INIT(lp->device_list), .dev = dev, .index = index, }; @@ -509,7 +510,7 @@ static int iss_net_configure(int index, char *init) if (!tuntap_probe(lp, index, init)) { pr_err("%s: invalid arguments. Skipping device!\n", dev->name); - goto errout; + goto err_free_netdev; } pr_info("Netdevice %d (%pM)\n", index, dev->dev_addr); @@ -517,17 +518,16 @@ static int iss_net_configure(int index, char *init) /* sysfs register */ if (!driver_registered) { - platform_driver_register(&iss_net_driver); + if (platform_driver_register(&iss_net_driver)) + goto err_free_netdev; driver_registered = 1; } - spin_lock(&devices_lock); - list_add(&lp->device_list, &devices); - spin_unlock(&devices_lock); - lp->pdev.id = index; lp->pdev.name = DRIVER_NAME; - platform_device_register(&lp->pdev); + lp->pdev.dev.release = iss_net_pdev_release; + if (platform_device_register(&lp->pdev)) + goto err_free_netdev; SET_NETDEV_DEV(dev, &lp->pdev.dev); dev->netdev_ops = &iss_netdev_ops; @@ -536,23 +536,21 @@ static int iss_net_configure(int index, char *init) dev->irq = -1; rtnl_lock(); - err = register_netdevice(dev); - rtnl_unlock(); - - if (err) { + if (register_netdevice(dev)) { + rtnl_unlock(); pr_err("%s: error registering net device!\n", dev->name); - /* XXX: should we call ->remove() here? */ - free_netdev(dev); - return 1; + platform_device_unregister(&lp->pdev); + /* dev is freed by the iss_net_pdev_release callback */ + return; } + rtnl_unlock(); timer_setup(&lp->tl, iss_net_user_timer_expire, 0); - return 0; + return; -errout: - /* FIXME: unregister; free, etc.. */ - return -EIO; +err_free_netdev: + free_netdev(dev); } /* ------------------------------------------------------------------------- */ @@ -574,7 +572,7 @@ struct iss_net_init { static int __init iss_net_setup(char *str) { - struct iss_net_private *device = NULL; + struct iss_net_init *device = NULL; struct iss_net_init *new; struct list_head *ele; char *end; @@ -595,16 +593,12 @@ static int __init iss_net_setup(char *str) } str = end; - spin_lock(&devices_lock); - - list_for_each(ele, &devices) { - device = list_entry(ele, struct iss_net_private, device_list); + list_for_each(ele, ð_cmd_line) { + device = list_entry(ele, struct iss_net_init, list); if (device->index == n) break; } - spin_unlock(&devices_lock); - if (device && device->index == n) { pr_err("Device %u already configured\n", n); return 1; |