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authorThomas Pedersen <c_tpeder@qca.qualcomm.com>2012-04-06 13:35:47 -0700
committerJohn W. Linville <linville@tuxdriver.com>2012-04-11 16:23:59 -0400
commit5314526b1743e8e8614293db7d86e480b4fe9824 (patch)
treec493979d2d417b9a146ac6ef5e1b5562a5fda6df /net/wireless/mlme.c
parent14dc7852099535d17807e348dd127433413b7e0a (diff)
downloadop-kernel-dev-5314526b1743e8e8614293db7d86e480b4fe9824.zip
op-kernel-dev-5314526b1743e8e8614293db7d86e480b4fe9824.tar.gz
cfg80211: add channel switch notify event
The firmware may decide to switch channels while already beaconing, e.g. in response to a cfg80211 connect request on a different vif. Add this event to notify userspace when an AP or GO interface has successfully migrated to a new channel, so it can update its configuration accordingly. Signed-off-by: Thomas Pedersen <c_tpeder@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/wireless/mlme.c')
-rw-r--r--net/wireless/mlme.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index e14fdcc..6801d96 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -930,6 +930,33 @@ void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
}
EXPORT_SYMBOL(cfg80211_pmksa_candidate_notify);
+void cfg80211_ch_switch_notify(struct net_device *dev, int freq,
+ enum nl80211_channel_type type)
+{
+ struct wireless_dev *wdev = dev->ieee80211_ptr;
+ struct wiphy *wiphy = wdev->wiphy;
+ struct cfg80211_registered_device *rdev = wiphy_to_dev(wiphy);
+ struct ieee80211_channel *chan;
+
+ wdev_lock(wdev);
+
+ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
+ wdev->iftype != NL80211_IFTYPE_P2P_GO))
+ goto out;
+
+ chan = rdev_freq_to_chan(rdev, freq, type);
+ if (WARN_ON(!chan))
+ goto out;
+
+ wdev->channel = chan;
+
+ nl80211_ch_switch_notify(rdev, dev, freq, type, GFP_KERNEL);
+out:
+ wdev_unlock(wdev);
+ return;
+}
+EXPORT_SYMBOL(cfg80211_ch_switch_notify);
+
bool cfg80211_rx_spurious_frame(struct net_device *dev,
const u8 *addr, gfp_t gfp)
{
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