From: stephen hemminger Date: Wed, 7 Jun 2017 22:53:47 +0000 (-0700) Subject: netvsc: fix rcu dereference warning from ethtool X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fbd4c7e768f1719bea340e40148800279d230922;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git 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 Signed-off-by: David S. Miller --- 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;