This is a note to let you know that I've just added the patch titled
wifi: rt2x00: restart beacon queue when hardware reset
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
wifi-rt2x00-restart-beacon-queue-when-hardware-reset.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bdb061b36476434f1b5361fc240d50d64553f065
Author: Shiji Yang <yangshiji66@xxxxxxxxxxx>
Date: Sat Nov 4 16:58:00 2023 +0800
wifi: rt2x00: restart beacon queue when hardware reset
[ Upstream commit a11d965a218f0cd95b13fe44d0bcd8a20ce134a8 ]
When a hardware reset is triggered, all registers are reset, so all
queues are forced to stop in hardware interface. However, mac80211
will not automatically stop the queue. If we don't manually stop the
beacon queue, the queue will be deadlocked and unable to start again.
This patch fixes the issue where Apple devices cannot connect to the
AP after calling ieee80211_restart_hw().
Signed-off-by: Shiji Yang <yangshiji66@xxxxxxxxxxx>
Acked-by: Stanislaw Gruszka <stf_xl@xxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxx>
Link: https://lore.kernel.org/r/TYAP286MB031530EB6D98DCE4DF20766CBCA4A@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
index 9a9cfd0ce402..00b945053e19 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00dev.c
@@ -101,6 +101,7 @@ void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev)
rt2x00link_stop_tuner(rt2x00dev);
rt2x00queue_stop_queues(rt2x00dev);
rt2x00queue_flush_queues(rt2x00dev, true);
+ rt2x00queue_stop_queue(rt2x00dev->bcn);
/*
* Disable radio.
@@ -1286,6 +1287,7 @@ int rt2x00lib_start(struct rt2x00_dev *rt2x00dev)
rt2x00dev->intf_ap_count = 0;
rt2x00dev->intf_sta_count = 0;
rt2x00dev->intf_associated = 0;
+ rt2x00dev->intf_beaconing = 0;
/* Enable the radio */
retval = rt2x00lib_enable_radio(rt2x00dev);
@@ -1312,6 +1314,7 @@ void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev)
rt2x00dev->intf_ap_count = 0;
rt2x00dev->intf_sta_count = 0;
rt2x00dev->intf_associated = 0;
+ rt2x00dev->intf_beaconing = 0;
}
static inline void rt2x00lib_set_if_combinations(struct rt2x00_dev *rt2x00dev)
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
index 4202c6517783..75fda72c14ca 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00mac.c
@@ -598,6 +598,17 @@ void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
*/
if (changes & BSS_CHANGED_BEACON_ENABLED) {
mutex_lock(&intf->beacon_skb_mutex);
+
+ /*
+ * Clear the 'enable_beacon' flag and clear beacon because
+ * the beacon queue has been stopped after hardware reset.
+ */
+ if (test_bit(DEVICE_STATE_RESET, &rt2x00dev->flags) &&
+ intf->enable_beacon) {
+ intf->enable_beacon = false;
+ rt2x00queue_clear_beacon(rt2x00dev, vif);
+ }
+
if (!bss_conf->enable_beacon && intf->enable_beacon) {
rt2x00dev->intf_beaconing--;
intf->enable_beacon = false;
