netvsc: add rtnl annotations in rndis
The rndis functions are used when changing device state.
Therefore the references from network device to internal state
are protected by RTNL mutex.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index c15640c..0a9d9fe 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -105,7 +105,8 @@
{
struct nvsp_message *revoke_packet;
struct net_device *ndev = hv_get_drvdata(device);
- struct netvsc_device *net_device = net_device_to_netvsc_device(ndev);
+ struct net_device_context *ndc = netdev_priv(ndev);
+ struct netvsc_device *net_device = rtnl_dereference(ndc->nvdev);
int ret;
/*
@@ -829,7 +830,8 @@
struct hv_page_buffer **pb,
struct sk_buff *skb)
{
- struct netvsc_device *net_device = rcu_dereference(ndev_ctx->nvdev);
+ struct netvsc_device *net_device
+ = rcu_dereference_rtnl(ndev_ctx->nvdev);
struct hv_device *device = ndev_ctx->device_ctx;
int ret = 0;
struct netvsc_channel *nvchan;