diff options
Diffstat (limited to 'drivers/usb/gadget/function/u_ether.c')
| -rw-r--r-- | drivers/usb/gadget/function/u_ether.c | 27 |
1 files changed, 7 insertions, 20 deletions
diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c index fe1811650dbc..b4e5d6dfd549 100644 --- a/drivers/usb/gadget/function/u_ether.c +++ b/drivers/usb/gadget/function/u_ether.c @@ -142,15 +142,6 @@ static inline int qlen(struct usb_gadget *gadget, unsigned qmult) /* NETWORK DRIVER HOOKUP (to the layer above this driver) */ -static int ueth_change_mtu(struct net_device *net, int new_mtu) -{ - if (new_mtu <= ETH_HLEN || new_mtu > GETHER_MAX_ETH_FRAME_LEN) - return -ERANGE; - net->mtu = new_mtu; - - return 0; -} - static void eth_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *p) { struct eth_dev *dev = netdev_priv(net); @@ -224,7 +215,7 @@ rx_submit(struct eth_dev *dev, struct usb_request *req, gfp_t gfp_flags) if (dev->port_usb->is_fixed) size = max_t(size_t, size, dev->port_usb->fixed_out_len); - skb = alloc_skb(size + NET_IP_ALIGN, gfp_flags); + skb = __netdev_alloc_skb(dev->net, size + NET_IP_ALIGN, gfp_flags); if (skb == NULL) { DBG(dev, "no rx skb\n"); goto enomem; @@ -455,16 +446,17 @@ static void tx_complete(struct usb_ep *ep, struct usb_request *req) /* FALLTHROUGH */ case -ECONNRESET: /* unlink */ case -ESHUTDOWN: /* disconnect etc */ + dev_kfree_skb_any(skb); break; case 0: dev->net->stats.tx_bytes += skb->len; + dev_consume_skb_any(skb); } dev->net->stats.tx_packets++; spin_lock(&dev->req_lock); list_add(&req->list, &dev->tx_reqs); spin_unlock(&dev->req_lock); - dev_kfree_skb_any(skb); atomic_dec(&dev->tx_qlen); if (netif_carrier_ok(dev->net)) @@ -588,14 +580,6 @@ static netdev_tx_t eth_start_xmit(struct sk_buff *skb, req->length = length; - /* throttle high/super speed IRQ rate back slightly */ - if (gadget_is_dualspeed(dev->gadget)) - req->no_interrupt = (((dev->gadget->speed == USB_SPEED_HIGH || - dev->gadget->speed == USB_SPEED_SUPER)) && - !list_empty(&dev->tx_reqs)) - ? ((atomic_read(&dev->tx_qlen) % dev->qmult) != 0) - : 0; - retval = usb_ep_queue(in, req, GFP_ATOMIC); switch (retval) { default: @@ -737,7 +721,6 @@ static const struct net_device_ops eth_netdev_ops = { .ndo_open = eth_open, .ndo_stop = eth_stop, .ndo_start_xmit = eth_start_xmit, - .ndo_change_mtu = ueth_change_mtu, .ndo_set_mac_address = eth_mac_addr, .ndo_validate_addr = eth_validate_addr, }; @@ -800,6 +783,10 @@ struct eth_dev *gether_setup_name(struct usb_gadget *g, net->ethtool_ops = &ops; + /* MTU range: 14 - 15412 */ + net->min_mtu = ETH_HLEN; + net->max_mtu = GETHER_MAX_ETH_FRAME_LEN; + dev->gadget = g; SET_NETDEV_DEV(net, &g->dev); SET_NETDEV_DEVTYPE(net, &gadget_type); |