hv_netvsc: introduce {net, hv}_device_to_netvsc_device() helpers

Make it easier to get 'struct netvsc_device' from 'struct net_device' and
'struct hv_device' by introducing inline helpers.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index c270c5a54f3aa8a377877b72ade55146cbe7ec74..952cbc860676763ea286dfe84a0f39de5f2878f2 100644 (file)
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -743,6 +743,18 @@ struct netvsc_device {
        atomic_t vf_use_cnt;
 };
 
+static inline struct netvsc_device *
+net_device_to_netvsc_device(struct net_device *ndev)
+{
+       return ((struct net_device_context *)netdev_priv(ndev))->nvdev;
+}
+
+static inline struct netvsc_device *
+hv_device_to_netvsc_device(struct hv_device *device)
+{
+       return net_device_to_netvsc_device(hv_get_drvdata(device));
+}
+
 /* NdisInitialize message */
 struct rndis_initialize_request {
        u32 req_id;

diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 719cb3578e55a53a5ef909eb16cfe15c5a718311..96f00c0261faa68f606d2d3baed5c7cad4f270a0 100644 (file)
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -95,9 +95,7 @@ static void free_netvsc_device(struct netvsc_device *nvdev)
 
 static struct netvsc_device *get_outbound_net_device(struct hv_device *device)
 {
-       struct net_device *ndev = hv_get_drvdata(device);
-       struct net_device_context *net_device_ctx = netdev_priv(ndev);
-       struct netvsc_device *net_device = net_device_ctx->nvdev;
+       struct netvsc_device *net_device = hv_device_to_netvsc_device(device);
 
        if (net_device && net_device->destroy)
                net_device = NULL;
@@ -107,9 +105,7 @@ static struct netvsc_device *get_outbound_net_device(struct hv_device *device)
 
 static struct netvsc_device *get_inbound_net_device(struct hv_device *device)
 {
-       struct net_device *ndev = hv_get_drvdata(device);
-       struct net_device_context *net_device_ctx = netdev_priv(ndev);
-       struct netvsc_device *net_device = net_device_ctx->nvdev;
+       struct netvsc_device *net_device = hv_device_to_netvsc_device(device);
 
        if (!net_device)
                goto get_in_err;
@@ -128,8 +124,7 @@ static int netvsc_destroy_buf(struct hv_device *device)
        struct nvsp_message *revoke_packet;
        int ret = 0;
        struct net_device *ndev = hv_get_drvdata(device);
-       struct net_device_context *net_device_ctx = netdev_priv(ndev);
-       struct netvsc_device *net_device = net_device_ctx->nvdev;
+       struct netvsc_device *net_device = net_device_to_netvsc_device(ndev);
 
        /*
         * If we got a section count, it means we received a

diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 97c292b7dbea0c06cca508935c1323bbd9ebedd9..42c652e0cdc73f38b9adc86a3644d1b1ef0b7fd1 100644 (file)
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -546,8 +546,7 @@ static int rndis_filter_query_device_mac(struct rndis_device *dev)
 int rndis_filter_set_device_mac(struct hv_device *hdev, char *mac)
 {
        struct net_device *ndev = hv_get_drvdata(hdev);
-       struct net_device_context *net_device_ctx = netdev_priv(ndev);
-       struct netvsc_device *nvdev = net_device_ctx->nvdev;
+       struct netvsc_device *nvdev = net_device_to_netvsc_device(ndev);
        struct rndis_device *rdev = nvdev->extension;
        struct rndis_request *request;
        struct rndis_set_request *set;
@@ -626,8 +625,7 @@ rndis_filter_set_offload_params(struct hv_device *hdev,
                                struct ndis_offload_params *req_offloads)
 {
        struct net_device *ndev = hv_get_drvdata(hdev);
-       struct net_device_context *net_device_ctx = netdev_priv(ndev);
-       struct netvsc_device *nvdev = net_device_ctx->nvdev;
+       struct netvsc_device *nvdev = net_device_to_netvsc_device(ndev);
        struct rndis_device *rdev = nvdev->extension;
        struct rndis_request *request;
        struct rndis_set_request *set;
@@ -851,8 +849,7 @@ static int rndis_filter_init_device(struct rndis_device *dev)
        u32 status;
        int ret;
        unsigned long t;
-       struct net_device_context *net_device_ctx = netdev_priv(dev->ndev);
-       struct netvsc_device *nvdev = net_device_ctx->nvdev;
+       struct netvsc_device *nvdev = net_device_to_netvsc_device(dev->ndev);
 
        request = get_rndis_request(dev, RNDIS_MSG_INIT,
                        RNDIS_MESSAGE_SIZE(struct rndis_initialize_request));
@@ -977,8 +974,7 @@ static void netvsc_sc_open(struct vmbus_channel *new_sc)
 {
        struct net_device *ndev =
                hv_get_drvdata(new_sc->primary_channel->device_obj);
-       struct net_device_context *net_device_ctx = netdev_priv(ndev);
-       struct netvsc_device *nvscdev = net_device_ctx->nvdev;
+       struct netvsc_device *nvscdev = net_device_to_netvsc_device(ndev);
        u16 chn_index = new_sc->offermsg.offer.sub_channel_index;
        int ret;
        unsigned long flags;
@@ -1196,9 +1192,7 @@ err_dev_remv:
 
 void rndis_filter_device_remove(struct hv_device *dev)
 {
-       struct net_device *ndev = hv_get_drvdata(dev);
-       struct net_device_context *net_device_ctx = netdev_priv(ndev);
-       struct netvsc_device *net_dev = net_device_ctx->nvdev;
+       struct netvsc_device *net_dev = hv_device_to_netvsc_device(dev);
        struct rndis_device *rndis_dev = net_dev->extension;
        unsigned long t;
 
@@ -1224,9 +1218,7 @@ void rndis_filter_device_remove(struct hv_device *dev)
 
 int rndis_filter_open(struct hv_device *dev)
 {
-       struct net_device *ndev = hv_get_drvdata(dev);
-       struct net_device_context *net_device_ctx = netdev_priv(ndev);
-       struct netvsc_device *net_device = net_device_ctx->nvdev;
+       struct netvsc_device *net_device = hv_device_to_netvsc_device(dev);
 
        if (!net_device)
                return -EINVAL;
@@ -1239,9 +1231,7 @@ int rndis_filter_open(struct hv_device *dev)
 
 int rndis_filter_close(struct hv_device *dev)
 {
-       struct net_device *ndev = hv_get_drvdata(dev);
-       struct net_device_context *net_device_ctx = netdev_priv(ndev);
-       struct netvsc_device *nvdev = net_device_ctx->nvdev;
+       struct netvsc_device *nvdev = hv_device_to_netvsc_device(dev);
 
        if (!nvdev)
                return -EINVAL;