net: pass info struct via netdevice notifier

So far, only net_device * could be passed along with netdevice notifier
event. This patch provides a possibility to pass custom structure
able to provide info that event listener needs to know.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>

v2->v3: fix typo on simeth
	shortened dev_getter
	shortened notifier_info struct name
v1->v2: fix notifier_call parameter in call_netdevice_notifier()
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 3 insertions, 3 deletions

diff --git a/drivers/net/wan/dlci.c b/drivers/net/wan/dlci.c
index 147614ed86aa..70ac59929f80 100644
--- a/drivers/net/wan/dlci.c
+++ b/drivers/net/wan/dlci.c
@@ -477,7 +477,7 @@ static void dlci_setup(struct net_device *dev)
 static int dlci_dev_event(struct notifier_block *unused,
                           unsigned long event, void *ptr)
 {
-        struct net_device *dev = (struct net_device *) ptr;
+        struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
         if (dev_net(dev) != &init_net)
                 return NOTIFY_DONE;
diff --git a/drivers/net/wan/hdlc.c b/drivers/net/wan/hdlc.c
index a0a932c63d0a..9c33ca918e19 100644
--- a/drivers/net/wan/hdlc.c
+++ b/drivers/net/wan/hdlc.c
@@ -99,7 +99,7 @@ static inline void hdlc_proto_stop(struct net_device *dev)
 static int hdlc_device_event(struct notifier_block *this, unsigned long event,
                              void *ptr)
 {
-        struct net_device *dev = ptr;
+        struct net_device *dev = netdev_notifier_info_to_dev(ptr);
         hdlc_device *hdlc;
         unsigned long flags;
         int on;
diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c
index a73b49eb87e3..a33a46fa88dd 100644
--- a/drivers/net/wan/lapbether.c
+++ b/drivers/net/wan/lapbether.c
@@ -370,7 +370,7 @@ static int lapbeth_device_event(struct notifier_block *this,
                                 unsigned long event, void *ptr)
 {
         struct lapbethdev *lapbeth;
-        struct net_device *dev = ptr;
+        struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
         if (dev_net(dev) != &init_net)
                 return NOTIFY_DONE;