This is a note to let you know that I've just added the patch titled
ath11k: add handler for scan event WMI_SCAN_EVENT_DEQUEUED
to the 5.14-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:
ath11k-add-handler-for-scan-event-wmi_scan_event_deq.patch
and it can be found in the queue-5.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 7a7692b39308e85a91e247d4204b8f11ea94316b
Author: Wen Gong <wgong@xxxxxxxxxxxxxx>
Date: Tue Sep 28 14:00:45 2021 +0300
ath11k: add handler for scan event WMI_SCAN_EVENT_DEQUEUED
[ Upstream commit 441b3b5911f8ead7f2fe2336587b340a33044d58 ]
When wlan interface is up, 11d scan is sent to the firmware, and the
firmware needs to spend couple of seconds to complete the 11d scan. If
immediately a normal scan from user space arrives to ath11k, then the
normal scan request is also sent to the firmware, but the scan started
event will be reported to ath11k until the 11d scan complete. When timed
out for the scan started in ath11k, ath11k stops the normal scan and the
firmware reports WMI_SCAN_EVENT_DEQUEUED to ath11k for the normal scan.
ath11k has no handler for the event and then timed out for the scan
completed in ath11k_scan_stop(), and ath11k prints the following error
message.
[ 1491.604750] ath11k_pci 0000:02:00.0: failed to receive scan abort comple: timed out
[ 1491.604756] ath11k_pci 0000:02:00.0: failed to stop scan: -110
[ 1491.604758] ath11k_pci 0000:02:00.0: failed to start hw scan: -110
Add a handler for WMI_SCAN_EVENT_DEQUEUED and then complete the scan to
get rid of the above error message.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Signed-off-by: Wen Gong <wgong@xxxxxxxxxxxxxx>
Signed-off-by: Jouni Malinen <jouni@xxxxxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210914164226.38843-1-jouni@xxxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index fa27115483c6c..72da1283f2ccb 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -6313,6 +6313,8 @@ static void ath11k_scan_event(struct ath11k_base *ab, struct sk_buff *skb)
ath11k_wmi_event_scan_start_failed(ar);
break;
case WMI_SCAN_EVENT_DEQUEUED:
+ __ath11k_mac_scan_finish(ar);
+ break;
case WMI_SCAN_EVENT_PREEMPTED:
case WMI_SCAN_EVENT_RESTARTED:
case WMI_SCAN_EVENT_FOREIGN_CHAN_EXIT:
