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-rw-r--r--include/linux/notifier.h1
-rw-r--r--net/core/dev.c7
2 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index b86fa2f..81bc252 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -198,6 +198,7 @@ static inline int notifier_to_errno(int ret)
#define NETDEV_CHANGENAME 0x000A
#define NETDEV_FEAT_CHANGE 0x000B
#define NETDEV_BONDING_FAILOVER 0x000C
+#define NETDEV_PRE_UP 0x000D
#define SYS_DOWN 0x0001 /* Notify of system down */
#define SYS_RESTART SYS_DOWN
diff --git a/net/core/dev.c b/net/core/dev.c
index 34b49a6..1f38401 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1048,7 +1048,7 @@ void dev_load(struct net *net, const char *name)
int dev_open(struct net_device *dev)
{
const struct net_device_ops *ops = dev->netdev_ops;
- int ret = 0;
+ int ret;
ASSERT_RTNL();
@@ -1065,6 +1065,11 @@ int dev_open(struct net_device *dev)
if (!netif_device_present(dev))
return -ENODEV;
+ ret = call_netdevice_notifiers(NETDEV_PRE_UP, dev);
+ ret = notifier_to_errno(ret);
+ if (ret)
+ return ret;
+
/*
* Call device private open method
*/
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