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authorJohannes Berg <johannes.berg@intel.com>2018-10-01 14:09:17 +0200
committerJohannes Berg <johannes.berg@intel.com>2018-10-02 09:58:51 +0200
commit85dd3da43dd59b9220d9cba4f933a3dc0ea6faa5 (patch)
tree94348e0ab78f8ad10411d226d29b64366d2b3e6b /net/wireless
parent49f9cf0e1bf518c006425b59e3b705f6276a8b7c (diff)
downloadlinux-stericsson-85dd3da43dd59b9220d9cba4f933a3dc0ea6faa5.tar.gz
cfg80211: combine wdev/netdev unregister code
We currently have two places that do similar things, depending on whether it's a wdev with or without netdev. Combine the code to avoid having to duplicate all new additions. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/core.c38
1 files changed, 21 insertions, 17 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 144eab227748..ba6363db1f31 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -1019,36 +1019,49 @@ void cfg80211_cqm_config_free(struct wireless_dev *wdev)
wdev->cqm_config = NULL;
}
-void cfg80211_unregister_wdev(struct wireless_dev *wdev)
+static void __cfg80211_unregister_wdev(struct wireless_dev *wdev, bool sync)
{
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
ASSERT_RTNL();
- if (WARN_ON(wdev->netdev))
- return;
-
nl80211_notify_iface(rdev, wdev, NL80211_CMD_DEL_INTERFACE);
list_del_rcu(&wdev->list);
- synchronize_rcu();
+ if (sync)
+ synchronize_rcu();
rdev->devlist_generation++;
+ cfg80211_mlme_purge_registrations(wdev);
+
switch (wdev->iftype) {
case NL80211_IFTYPE_P2P_DEVICE:
- cfg80211_mlme_purge_registrations(wdev);
cfg80211_stop_p2p_device(rdev, wdev);
break;
case NL80211_IFTYPE_NAN:
cfg80211_stop_nan(rdev, wdev);
break;
default:
- WARN_ON_ONCE(1);
break;
}
+#ifdef CONFIG_CFG80211_WEXT
+ kzfree(wdev->wext.keys);
+#endif
+ /* only initialized if we have a netdev */
+ if (wdev->netdev)
+ flush_work(&wdev->disconnect_wk);
+
cfg80211_cqm_config_free(wdev);
}
+
+void cfg80211_unregister_wdev(struct wireless_dev *wdev)
+{
+ if (WARN_ON(wdev->netdev))
+ return;
+
+ __cfg80211_unregister_wdev(wdev, true);
+}
EXPORT_SYMBOL(cfg80211_unregister_wdev);
static const struct device_type wiphy_type = {
@@ -1308,17 +1321,8 @@ static int cfg80211_netdev_notifier_call(struct notifier_block *nb,
* remove and clean it up.
*/
if (!list_empty(&wdev->list)) {
- nl80211_notify_iface(rdev, wdev,
- NL80211_CMD_DEL_INTERFACE);
+ __cfg80211_unregister_wdev(wdev, false);
sysfs_remove_link(&dev->dev.kobj, "phy80211");
- list_del_rcu(&wdev->list);
- rdev->devlist_generation++;
- cfg80211_mlme_purge_registrations(wdev);
-#ifdef CONFIG_CFG80211_WEXT
- kzfree(wdev->wext.keys);
-#endif
- flush_work(&wdev->disconnect_wk);
- cfg80211_cqm_config_free(wdev);
}
/*
* synchronise (so that we won't find this netdev