From e65628691f04f1a9ce57d8036c9b119c43031187 Mon Sep 17 00:00:00 2001 From: Arik Nemtsov Date: Fri, 11 Jul 2014 03:01:36 +0300 Subject: [PATCH] wlcore: don't switch channels on disconnected STA vifs Sending the FW a channel switch command on a disconnected vif may result in a beacon loss event. Avoid this corner case. Signed-off-by: Arik Nemtsov Signed-off-by: Eliad Peller Signed-off-by: John W. Linville --- drivers/net/wireless/ti/wlcore/main.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c index d92f578dd95c..ec211413ffe6 100644 --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -5192,6 +5192,10 @@ static void wl12xx_op_channel_switch(struct ieee80211_hw *hw, if (unlikely(wl->state == WLCORE_STATE_OFF)) { wl12xx_for_each_wlvif_sta(wl, wlvif) { struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif); + + if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags)) + continue; + ieee80211_chswitch_done(vif, false); } goto out; @@ -5207,6 +5211,9 @@ static void wl12xx_op_channel_switch(struct ieee80211_hw *hw, wl12xx_for_each_wlvif_sta(wl, wlvif) { unsigned long delay_usec; + if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags)) + continue; + ret = wl->ops->channel_switch(wl, wlvif, ch_switch); if (ret) goto out_sleep; -- 2.11.0