1 From 4101e8dc540d19f1f6c24930629149191786e4cd Mon Sep 17 00:00:00 2001
2 From: Arik Nemtsov <arik@wizery.com>
3 Date: Mon, 9 Sep 2013 16:48:59 +0300
4 Subject: [PATCH 27/75] wlcore: don't switch channels on disconnected STA vifs
6 Sending the FW a channel switch command on a disconnected vif may result
7 in a beacon loss event. Avoid this edge case.
9 Signed-off-by: Arik Nemtsov <arik@wizery.com>
11 drivers/net/wireless/ti/wlcore/main.c | 7 +++++++
12 1 file changed, 7 insertions(+)
14 diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
15 index 117e01e..a0c5a1e 100644
16 --- a/drivers/net/wireless/ti/wlcore/main.c
17 +++ b/drivers/net/wireless/ti/wlcore/main.c
18 @@ -5224,6 +5224,10 @@ static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
19 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
20 wl12xx_for_each_wlvif_sta(wl, wlvif) {
21 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
23 + if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
26 ieee80211_chswitch_done(vif, false);
29 @@ -5239,6 +5243,9 @@ static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
30 wl12xx_for_each_wlvif_sta(wl, wlvif) {
31 unsigned long delay_usec;
33 + if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
36 ret = wl->ops->channel_switch(wl, wlvif, ch_switch);