diff options
| author | Bibhay Ranjan <bibhayr@nvidia.com> | 2014-03-18 13:54:54 +0530 |
|---|---|---|
| committer | Mandar Padmawar <mpadmawar@nvidia.com> | 2014-06-25 00:49:20 -0700 |
| commit | 3c1272799248f9e9e1660b9eaefd2c3789274647 (patch) | |
| tree | 3cb521c600127bf69ae384bc0ef9e79b754e6995 | |
| parent | f0490609a8495770d329b6b84fc446436bedf338 (diff) | |
staging: ozwpan: add net device notifier
add notifier function to remove p2p netdevice binding on
NETDEV_DOWN or NETDEV_UNREGISTER events
Bug 1478118
Bug 1470921
Change-Id: I6a18c65ee45affeaa6f459b656888c1c52d2fd3b
Reviewed-on: http://git-master/r/368141
(cherry picked from commit 28d61853e7f35e80ba11784eceb83acd1a870fac)
Reviewed-on: http://git-master/r/383615
(cherry picked from commit c67c144624703bc7d927c6822c24ecbc9a6b04f9)
Signed-off-by: Jean Huang <jeanh@nvidia.com>
Reviewed-on: http://git-master/r/427951
GVS: Gerrit_Virtual_Submit
| -rw-r--r-- | drivers/staging/ozwpan/ozproto.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/staging/ozwpan/ozproto.c b/drivers/staging/ozwpan/ozproto.c index 8cb25b285c6a..1066c4e49ad7 100644 --- a/drivers/staging/ozwpan/ozproto.c +++ b/drivers/staging/ozwpan/ozproto.c @@ -445,6 +445,26 @@ done: oz_pd_put(pd); consume_skb(skb); } + +static int oz_net_notifier(struct notifier_block *nb, unsigned long event, + void *ndev) +{ + struct net_device *dev = ndev; + switch (event) { + case NETDEV_UNREGISTER: + case NETDEV_DOWN: + oz_trace_msg(M, "%s: event %s\n", __func__, + (event == NETDEV_UNREGISTER) ? + "NETDEV_UNREGISTER" : "NETDEV_DOWN"); + oz_binding_remove(dev->name); + break; + } + return NOTIFY_OK; +} + +static struct notifier_block nb_oz_net_notifier = { + .notifier_call = oz_net_notifier +}; /*------------------------------------------------------------------------------ * Context: process */ @@ -482,6 +502,7 @@ void oz_protocol_term(void) spin_lock_bh(&g_polling_lock); } spin_unlock_bh(&g_polling_lock); + unregister_netdevice_notifier(&nb_oz_net_notifier); oz_trace("Protocol stopped\n"); } /*------------------------------------------------------------------------------ @@ -813,6 +834,12 @@ int oz_protocol_init(char *devs) return -1; } else { char d[32]; + int err = 0; + err = register_netdevice_notifier(&nb_oz_net_notifier); + if (err) { + oz_trace("notifier registration failed. err %d\n", err); + return -1; + } while (*devs) { devs = oz_get_next_device_name(devs, d, sizeof(d)); if (d[0]) |