From 89722f5767ac71b66e3077b6a158495eb316a43c Mon Sep 17 00:00:00 2001
From: Daniel Mack <daniel@zonque.org>
Date: Tue, 17 Apr 2018 15:23:35 +0200
Subject: [PATCH] wcn36xx: handle scan cancellation when firmware support is missing
Git-commit: 89722f5767ac71b66e3077b6a158495eb316a43c
Patch-mainline: v4.18-rc1
References: FATE#326906
For firmwares that don't have the SCAN_OFFLOAD feature bit set, do
not call into wcn36xx_smd_stop_hw_scan(). Instead, stop the asynchronous
work and call into ieee80211_scan_completed() immediately.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/ath/wcn36xx/main.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index 08b6939d3f57..e3b91b3b38ef 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -687,10 +687,18 @@ static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw,
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);
+ if (get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) {
+ /* ieee80211_scan_completed will be called on FW scan
+ * indication */
+ wcn36xx_smd_stop_hw_scan(wcn);
+ } else {
+ struct cfg80211_scan_info scan_info = {
+ .aborted = true,
+ };
- cancel_work_sync(&wcn->scan_work);
+ cancel_work_sync(&wcn->scan_work);
+ ieee80211_scan_completed(wcn->hw, &scan_info);
+ }
}
static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
--
2.19.2