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[PATCH] mac80211: deauth when interface is marked down

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It seems like proper etiquette to let other stations know when we are
going down in either STA or IBSS mode.  This also notifies userland, so
wpa_supplicant doesn't get confused.

Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>
---
 net/mac80211/iface.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 4608212..b557250 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -435,6 +435,9 @@ static int ieee80211_stop(struct net_device *dev)
 		break;
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_ADHOC:
+		/* Announce that we are leaving the network. */
+		ieee80211_sta_deauthenticate(dev, WLAN_REASON_DEAUTH_LEAVING);
+
 		sdata->u.sta.state = IEEE80211_STA_MLME_DISABLED;
 		memset(sdata->u.sta.bssid, 0, ETH_ALEN);
 		del_timer_sync(&sdata->u.sta.timer);
-- 
1.5.4.3

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