From b637e023484d420e8df326b561195f8ba74c1a73 Mon Sep 17 00:00:00 2001 From: Haiyang Zhang Date: Thu, 21 Apr 2011 12:30:45 -0700 Subject: [PATCH] staging: hv: move netvsc_device_add() to clean up forward declaration Signed-off-by: Haiyang Zhang Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- drivers/staging/hv/netvsc.c | 176 ++++++++++++++++++++++---------------------- 1 file changed, 87 insertions(+), 89 deletions(-) diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c index 75640ea..1c3bdda 100644 --- a/drivers/staging/hv/netvsc.c +++ b/drivers/staging/hv/netvsc.c @@ -45,8 +45,6 @@ static const struct hv_guid netvsc_device_type = { } }; -static void netvsc_channel_cb(void *context); - static int netvsc_init_send_buf(struct hv_device *device); static int netvsc_init_recv_buf(struct hv_device *device); @@ -592,93 +590,6 @@ static void NetVscDisconnectFromVsp(struct netvsc_device *net_device) } /* - * netvsc_device_add - Callback when the device belonging to this - * driver is added - */ -static int netvsc_device_add(struct hv_device *device, void *additional_info) -{ - int ret = 0; - int i; - struct netvsc_device *net_device; - struct hv_netvsc_packet *packet, *pos; - struct netvsc_driver *net_driver = - (struct netvsc_driver *)device->drv; - - net_device = alloc_net_device(device); - if (!net_device) { - ret = -1; - goto cleanup; - } - - /* Initialize the NetVSC channel extension */ - net_device->recv_buf_size = NETVSC_RECEIVE_BUFFER_SIZE; - spin_lock_init(&net_device->recv_pkt_list_lock); - - net_device->send_buf_size = NETVSC_SEND_BUFFER_SIZE; - - INIT_LIST_HEAD(&net_device->recv_pkt_list); - - for (i = 0; i < NETVSC_RECEIVE_PACKETLIST_COUNT; i++) { - packet = kzalloc(sizeof(struct hv_netvsc_packet) + - (NETVSC_RECEIVE_SG_COUNT * - sizeof(struct hv_page_buffer)), GFP_KERNEL); - if (!packet) - break; - - list_add_tail(&packet->list_ent, - &net_device->recv_pkt_list); - } - init_waitqueue_head(&net_device->channel_init_wait); - - /* Open the channel */ - ret = vmbus_open(device->channel, net_driver->ring_buf_size, - net_driver->ring_buf_size, NULL, 0, - netvsc_channel_cb, device); - - if (ret != 0) { - dev_err(&device->device, "unable to open channel: %d", ret); - ret = -1; - goto cleanup; - } - - /* Channel is opened */ - pr_info("hv_netvsc channel opened successfully"); - - /* Connect with the NetVsp */ - ret = netvsc_connect_vsp(device); - if (ret != 0) { - dev_err(&device->device, - "unable to connect to NetVSP - %d", ret); - ret = -1; - goto close; - } - - return ret; - -close: - /* Now, we can close the channel safely */ - vmbus_close(device->channel); - -cleanup: - - if (net_device) { - list_for_each_entry_safe(packet, pos, - &net_device->recv_pkt_list, - list_ent) { - list_del(&packet->list_ent); - kfree(packet); - } - - release_outbound_net_device(device); - release_inbound_net_device(device); - - free_net_device(net_device); - } - - return ret; -} - -/* * netvsc_device_remove - Callback when the root bus device is removed */ static int netvsc_device_remove(struct hv_device *device) @@ -1193,6 +1104,93 @@ out: } /* + * netvsc_device_add - Callback when the device belonging to this + * driver is added + */ +static int netvsc_device_add(struct hv_device *device, void *additional_info) +{ + int ret = 0; + int i; + struct netvsc_device *net_device; + struct hv_netvsc_packet *packet, *pos; + struct netvsc_driver *net_driver = + (struct netvsc_driver *)device->drv; + + net_device = alloc_net_device(device); + if (!net_device) { + ret = -1; + goto cleanup; + } + + /* Initialize the NetVSC channel extension */ + net_device->recv_buf_size = NETVSC_RECEIVE_BUFFER_SIZE; + spin_lock_init(&net_device->recv_pkt_list_lock); + + net_device->send_buf_size = NETVSC_SEND_BUFFER_SIZE; + + INIT_LIST_HEAD(&net_device->recv_pkt_list); + + for (i = 0; i < NETVSC_RECEIVE_PACKETLIST_COUNT; i++) { + packet = kzalloc(sizeof(struct hv_netvsc_packet) + + (NETVSC_RECEIVE_SG_COUNT * + sizeof(struct hv_page_buffer)), GFP_KERNEL); + if (!packet) + break; + + list_add_tail(&packet->list_ent, + &net_device->recv_pkt_list); + } + init_waitqueue_head(&net_device->channel_init_wait); + + /* Open the channel */ + ret = vmbus_open(device->channel, net_driver->ring_buf_size, + net_driver->ring_buf_size, NULL, 0, + netvsc_channel_cb, device); + + if (ret != 0) { + dev_err(&device->device, "unable to open channel: %d", ret); + ret = -1; + goto cleanup; + } + + /* Channel is opened */ + pr_info("hv_netvsc channel opened successfully"); + + /* Connect with the NetVsp */ + ret = netvsc_connect_vsp(device); + if (ret != 0) { + dev_err(&device->device, + "unable to connect to NetVSP - %d", ret); + ret = -1; + goto close; + } + + return ret; + +close: + /* Now, we can close the channel safely */ + vmbus_close(device->channel); + +cleanup: + + if (net_device) { + list_for_each_entry_safe(packet, pos, + &net_device->recv_pkt_list, + list_ent) { + list_del(&packet->list_ent); + kfree(packet); + } + + release_outbound_net_device(device); + release_inbound_net_device(device); + + free_net_device(net_device); + } + + return ret; +} + +/* * netvsc_initialize - Main entry point */ int netvsc_initialize(struct hv_driver *drv) -- 2.7.4