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netvsc: fix RCU warning in get_stats

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The statistics functionis called with RTNL held during probe
but with RCU held during access from /proc and elsewhere.
This is safe so update the lockdep annotation.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2017-04-14 14:42:57 -07:00 • committed by David S. Miller
parent 1dbba4cb8d
commit 776e726bfb
1 changed files with 1 additions and 1 deletions
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2
drivers/net/hyperv/netvsc_drv.c
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@ -943,7 +943,7 @@ static void netvsc_get_stats64(struct net_device *net,
struct rtnl_link_stats64 *t) struct rtnl_link_stats64 *t)
{ {
struct net_device_context *ndev_ctx = netdev_priv(net); struct net_device_context *ndev_ctx = netdev_priv(net);
struct netvsc_device *nvdev = rcu_dereference(ndev_ctx->nvdev); struct netvsc_device *nvdev = rcu_dereference_rtnl(ndev_ctx->nvdev);
int i; int i;
if (!nvdev) if (!nvdev)