The wcn36xx_cancel_hw_scan method stops the hw scan and notify the
scan completion via ieee80211_scan_completed.
However, on scan offload cancellation, firmware sends a scan complete
indication, triggering a new call to ieee80211_scan_completed.
This leads to kernel warn since the scan has already been completed.
Signed-off-by: Loic Poulain <loic.poulain@xxxxxxxxxx>
---
drivers/net/wireless/ath/wcn36xx/main.c | 9 +++------
drivers/net/wireless/ath/wcn36xx/smd.c | 2 ++
2 files changed, 5 insertions(+), 6 deletions(-)
diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index ab5be6d..fcc98d4 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -666,16 +666,13 @@ static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw,
{
struct wcn36xx *wcn = hw->priv;
- if (!wcn36xx_smd_stop_hw_scan(wcn)) {
- struct cfg80211_scan_info scan_info = { .aborted = true };
-
- ieee80211_scan_completed(wcn->hw, &scan_info);
- }
-
mutex_lock(&wcn->scan_lock);
wcn->scan_aborted = true;
mutex_unlock(&wcn->scan_lock);
+ /* ieee80211_scan_completed will be called on FW scan indication */
+ wcn36xx_smd_stop_hw_scan(wcn);
+
cancel_work_sync(&wcn->scan_work);
}
diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 2a4871c..7cc2928 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -2138,6 +2138,8 @@ static int wcn36xx_smd_hw_scan_ind(struct wcn36xx *wcn, void *buf, size_t len)
case WCN36XX_HAL_SCAN_IND_COMPLETED:
mutex_lock(&wcn->scan_lock);
wcn->scan_req = NULL;
+ if (wcn->scan_aborted)
+ scan_info.aborted = true;
mutex_unlock(&wcn->scan_lock);
ieee80211_scan_completed(wcn->hw, &scan_info);
break;
--
2.7.4
