From 9bfd05e35ac3519c26ffa0bfb1ab8933c8f00c74 Mon Sep 17 00:00:00 2001 From: Loic Poulain Date: Thu, 15 Feb 2018 12:08:28 +0100 Subject: wcn36xx: Fix warning due to duplicate scan_completed notification 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 Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/wcn36xx/main.c | 9 +++------ drivers/net/wireless/ath/wcn36xx/smd.c | 2 ++ 2 files changed, 5 insertions(+), 6 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c index ab5be6d2c691..fcc98d4f9f9e 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 2a4871ca9c72..7cc29285e052 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; -- cgit v1.2.3