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authorStephen Hemminger <stephen@networkplumber.org>2018-07-27 22:43:21 +0200
committerDavid S. Miller <davem@davemloft.net>2018-07-29 21:57:26 +0200
commit3260155ac784ae9f4889c6d3e40b85f33e94d098 (patch)
tree648292baa821322d4db544de9fa9ddd1037b394e /drivers/net/net_failover.c
parentnet: dcb: add DSCP to comment about priority selector types (diff)
downloadlinux-3260155ac784ae9f4889c6d3e40b85f33e94d098.tar.xz
linux-3260155ac784ae9f4889c6d3e40b85f33e94d098.zip
failover: change mtu has RTNL
When changing MTU, RTNL is held so use rtnl_dereference instead of rcu_dereference. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/net_failover.c')
-rw-r--r--drivers/net/net_failover.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/net_failover.c b/drivers/net/net_failover.c
index d00d42c845b7..7ae1856d1f18 100644
--- a/drivers/net/net_failover.c
+++ b/drivers/net/net_failover.c
@@ -220,14 +220,14 @@ static int net_failover_change_mtu(struct net_device *dev, int new_mtu)
struct net_device *primary_dev, *standby_dev;
int ret = 0;
- primary_dev = rcu_dereference(nfo_info->primary_dev);
+ primary_dev = rtnl_dereference(nfo_info->primary_dev);
if (primary_dev) {
ret = dev_set_mtu(primary_dev, new_mtu);
if (ret)
return ret;
}
- standby_dev = rcu_dereference(nfo_info->standby_dev);
+ standby_dev = rtnl_dereference(nfo_info->standby_dev);
if (standby_dev) {
ret = dev_set_mtu(standby_dev, new_mtu);
if (ret) {