diff options
Diffstat (limited to 'drivers/net/hyperv/rndis_filter.c')
-rw-r--r-- | drivers/net/hyperv/rndis_filter.c | 56 |
1 files changed, 23 insertions, 33 deletions
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c index 00ec80c23fe5..a6ec41c399d6 100644 --- a/drivers/net/hyperv/rndis_filter.c +++ b/drivers/net/hyperv/rndis_filter.c @@ -264,13 +264,23 @@ static void rndis_set_link_state(struct rndis_device *rdev, } } -static void rndis_filter_receive_response(struct rndis_device *dev, - struct rndis_message *resp) +static void rndis_filter_receive_response(struct net_device *ndev, + struct netvsc_device *nvdev, + const struct rndis_message *resp) { + struct rndis_device *dev = nvdev->extension; struct rndis_request *request = NULL; bool found = false; unsigned long flags; - struct net_device *ndev = dev->ndev; + + /* This should never happen, it means control message + * response received after device removed. + */ + if (dev->state == RNDIS_DEV_UNINITIALIZED) { + netdev_err(ndev, + "got rndis message uninitialized\n"); + return; + } spin_lock_irqsave(&dev->request_lock, flags); list_for_each_entry(request, &dev->req_list, list_ent) { @@ -352,7 +362,6 @@ static inline void *rndis_get_ppi(struct rndis_packet *rpkt, u32 type) static int rndis_filter_receive_data(struct net_device *ndev, struct netvsc_device *nvdev, - struct rndis_device *dev, struct rndis_message *msg, struct vmbus_channel *channel, void *data, u32 data_buflen) @@ -372,7 +381,7 @@ static int rndis_filter_receive_data(struct net_device *ndev, * should be the data packet size plus the trailer padding size */ if (unlikely(data_buflen < rndis_pkt->data_len)) { - netdev_err(dev->ndev, "rndis message buffer " + netdev_err(ndev, "rndis message buffer " "overflow detected (got %u, min %u)" "...dropping this message!\n", data_buflen, rndis_pkt->data_len); @@ -400,35 +409,20 @@ int rndis_filter_receive(struct net_device *ndev, void *data, u32 buflen) { struct net_device_context *net_device_ctx = netdev_priv(ndev); - struct rndis_device *rndis_dev = net_dev->extension; struct rndis_message *rndis_msg = data; - /* Make sure the rndis device state is initialized */ - if (unlikely(!rndis_dev)) { - netif_dbg(net_device_ctx, rx_err, ndev, - "got rndis message but no rndis device!\n"); - return NVSP_STAT_FAIL; - } - - if (unlikely(rndis_dev->state == RNDIS_DEV_UNINITIALIZED)) { - netif_dbg(net_device_ctx, rx_err, ndev, - "got rndis message uninitialized\n"); - return NVSP_STAT_FAIL; - } - if (netif_msg_rx_status(net_device_ctx)) dump_rndis_message(ndev, rndis_msg); switch (rndis_msg->ndis_msg_type) { case RNDIS_MSG_PACKET: - return rndis_filter_receive_data(ndev, net_dev, - rndis_dev, rndis_msg, + return rndis_filter_receive_data(ndev, net_dev, rndis_msg, channel, data, buflen); case RNDIS_MSG_INIT_C: case RNDIS_MSG_QUERY_C: case RNDIS_MSG_SET_C: /* completion msgs */ - rndis_filter_receive_response(rndis_dev, rndis_msg); + rndis_filter_receive_response(ndev, net_dev, rndis_msg); break; case RNDIS_MSG_INDICATE: @@ -1124,6 +1118,7 @@ void rndis_set_subchannel(struct work_struct *w) for (i = 0; i < VRSS_SEND_TAB_SIZE; i++) ndev_ctx->tx_table[i] = i % nvdev->num_chn; + netif_device_attach(ndev); rtnl_unlock(); return; @@ -1134,6 +1129,8 @@ failed: nvdev->max_chn = 1; nvdev->num_chn = 1; + + netif_device_attach(ndev); unlock: rtnl_unlock(); } @@ -1336,6 +1333,10 @@ out: net_device->num_chn = 1; } + /* No sub channels, device is ready */ + if (net_device->num_chn == 1) + netif_device_attach(net); + return net_device; err_dev_remv: @@ -1348,16 +1349,12 @@ void rndis_filter_device_remove(struct hv_device *dev, { struct rndis_device *rndis_dev = net_dev->extension; - /* Don't try and setup sub channels if about to halt */ - cancel_work_sync(&net_dev->subchan_work); - /* Halt and release the rndis device */ rndis_filter_halt_device(rndis_dev); net_dev->extension = NULL; netvsc_device_remove(dev); - kfree(rndis_dev); } int rndis_filter_open(struct netvsc_device *nvdev) @@ -1375,10 +1372,3 @@ int rndis_filter_close(struct netvsc_device *nvdev) return rndis_filter_close_device(nvdev->extension); } - -bool rndis_filter_opened(const struct netvsc_device *nvdev) -{ - const struct rndis_device *dev = nvdev->extension; - - return dev->state == RNDIS_DEV_DATAINITIALIZED; -} |