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authorstephen hemminger <stephen@networkplumber.org>2017-06-07 15:53:47 -0700
committerDavid S. Miller <davem@davemloft.net>2017-06-08 11:45:48 -0400
commitfbd4c7e768f1719bea340e40148800279d230922 (patch)
tree88aa286870d0f69cd7f269e7c866fc289897e38e /drivers
parent8397ed36b7c585f8d3e06c431f4137309124f78f (diff)
netvsc: fix rcu dereference warning from ethtool
The ethtool info command calls the netvsc get_sset_count with RTNL but not with RCU. Which causes warning: drivers/net/hyperv/netvsc_drv.c:1010 suspicious rcu_dereference_check() usage! Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/hyperv/netvsc_drv.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 4421a6d00375..d93e4da25fd2 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -1028,7 +1028,7 @@ static const struct {
static int netvsc_get_sset_count(struct net_device *dev, int string_set)
{
struct net_device_context *ndc = netdev_priv(dev);
- struct netvsc_device *nvdev = rcu_dereference(ndc->nvdev);
+ struct netvsc_device *nvdev = rtnl_dereference(ndc->nvdev);
if (!nvdev)
return -ENODEV;