net-sysfs: use to_net_dev in net_namespace()
Use to_net_dev() instead of open-coding it.
Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index bca8c35..b6c8a66 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1453,8 +1453,8 @@
static const void *net_namespace(struct device *d)
{
- struct net_device *dev;
- dev = container_of(d, struct net_device, dev);
+ struct net_device *dev = to_net_dev(d);
+
return dev_net(dev);
}