1 files changed, 24 insertions, 17 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index faa6d34cb658..3a4d9e6b0421 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -101,7 +101,7 @@ static void iwl_complete_scan(struct iwl_priv *priv, bool aborted)
                 ieee80211_scan_completed(priv->hw, aborted);
         }
 
-        priv->is_internal_short_scan = false;
+        priv->scan_type = IWL_SCAN_NORMAL;
         priv->scan_vif = NULL;
         priv->scan_request = NULL;
 }
@@ -339,10 +339,10 @@ void iwl_init_scan_params(struct iwl_priv *priv)
                 priv->scan_tx_ant[IEEE80211_BAND_2GHZ] = ant_idx;
 }
 
-static int __must_check iwl_scan_initiate(struct iwl_priv *priv,
-                                          struct ieee80211_vif *vif,
-                                          bool internal,
-                                          enum ieee80211_band band)
+int __must_check iwl_scan_initiate(struct iwl_priv *priv,
+                                   struct ieee80211_vif *vif,
+                                   enum iwl_scan_type scan_type,
+                                   enum ieee80211_band band)
 {
         int ret;
 
@@ -370,17 +370,19 @@ static int __must_check iwl_scan_initiate(struct iwl_priv *priv,
         }
 
         IWL_DEBUG_SCAN(priv, "Starting %sscan...\n",
-                        internal ? "internal short " : "");
+                        scan_type == IWL_SCAN_NORMAL ? "" :
+                        scan_type == IWL_SCAN_OFFCH_TX ? "offchan TX " :
+                        "internal short ");
 
         set_bit(STATUS_SCANNING, &priv->status);
-        priv->is_internal_short_scan = internal;
+        priv->scan_type = scan_type;
         priv->scan_start = jiffies;
         priv->scan_band = band;
 
         ret = priv->cfg->ops->utils->request_scan(priv, vif);
         if (ret) {
                 clear_bit(STATUS_SCANNING, &priv->status);
-                priv->is_internal_short_scan = false;
+                priv->scan_type = IWL_SCAN_NORMAL;
                 return ret;
         }
 
@@ -405,7 +407,7 @@ int iwl_mac_hw_scan(struct ieee80211_hw *hw,
         mutex_lock(&priv->mutex);
 
         if (test_bit(STATUS_SCANNING, &priv->status) &&
-            !priv->is_internal_short_scan) {
+            priv->scan_type != IWL_SCAN_NORMAL) {
                 IWL_DEBUG_SCAN(priv, "Scan already in progress.\n");
                 ret = -EAGAIN;
                 goto out_unlock;
@@ -419,11 +421,11 @@ int iwl_mac_hw_scan(struct ieee80211_hw *hw,
          * If an internal scan is in progress, just set
          * up the scan_request as per above.
          */
-        if (priv->is_internal_short_scan) {
+        if (priv->scan_type != IWL_SCAN_NORMAL) {
                 IWL_DEBUG_SCAN(priv, "SCAN request during internal scan\n");
                 ret = 0;
         } else
-                ret = iwl_scan_initiate(priv, vif, false,
+                ret = iwl_scan_initiate(priv, vif, IWL_SCAN_NORMAL,
                                         req->channels[0]->band);
 
         IWL_DEBUG_MAC80211(priv, "leave\n");
@@ -452,7 +454,7 @@ static void iwl_bg_start_internal_scan(struct work_struct *work)
 
         mutex_lock(&priv->mutex);
 
-        if (priv->is_internal_short_scan == true) {
+        if (priv->scan_type == IWL_SCAN_RADIO_RESET) {
                 IWL_DEBUG_SCAN(priv, "Internal scan already in progress\n");
                 goto unlock;
         }
@@ -462,7 +464,7 @@ static void iwl_bg_start_internal_scan(struct work_struct *work)
                 goto unlock;
         }
 
-        if (iwl_scan_initiate(priv, NULL, true, priv->band))
+        if (iwl_scan_initiate(priv, NULL, IWL_SCAN_RADIO_RESET, priv->band))
                 IWL_DEBUG_SCAN(priv, "failed to start internal short scan\n");
  unlock:
         mutex_unlock(&priv->mutex);
@@ -549,8 +551,7 @@ static void iwl_bg_scan_completed(struct work_struct *work)
             container_of(work, struct iwl_priv, scan_completed);
         bool aborted;
 
-        IWL_DEBUG_SCAN(priv, "Completed %sscan.\n",
-                       priv->is_internal_short_scan ? "internal short " : "");
+        IWL_DEBUG_SCAN(priv, "Completed scan.\n");
 
         cancel_delayed_work(&priv->scan_check);
 
@@ -565,7 +566,13 @@ static void iwl_bg_scan_completed(struct work_struct *work)
                 goto out_settings;
         }
 
-        if (priv->is_internal_short_scan && !aborted) {
+        if (priv->scan_type == IWL_SCAN_OFFCH_TX && priv->_agn.offchan_tx_skb) {
+                ieee80211_tx_status_irqsafe(priv->hw,
+                                            priv->_agn.offchan_tx_skb);
+                priv->_agn.offchan_tx_skb = NULL;
+        }
+
+        if (priv->scan_type != IWL_SCAN_NORMAL && !aborted) {
                 int err;
 
                 /* Check if mac80211 requested scan during our internal scan */
@@ -573,7 +580,7 @@ static void iwl_bg_scan_completed(struct work_struct *work)
                         goto out_complete;
 
                 /* If so request a new scan */
-                err = iwl_scan_initiate(priv, priv->scan_vif, false,
+                err = iwl_scan_initiate(priv, priv->scan_vif, IWL_SCAN_NORMAL,
                                         priv->scan_request->channels[0]->band);
                 if (err) {
                         IWL_DEBUG_SCAN(priv,