2 files changed, 17 insertions, 2 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 42cf1810b451..86d38ae2ec7e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1076,6 +1076,7 @@ struct iwl_priv {
         unsigned long scan_start;
         unsigned long scan_pass_start;
         unsigned long scan_start_tsf;
+        unsigned long last_internal_scan_jiffies;
         void *scan;
         int scan_bands;
         struct cfg80211_scan_request *scan_request;
diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c
index 07fabbbfd567..08faafae8497 100644
--- a/drivers/net/wireless/iwlwifi/iwl-scan.c
+++ b/drivers/net/wireless/iwlwifi/iwl-scan.c
@@ -201,7 +201,8 @@ static void iwl_rx_scan_results_notif(struct iwl_priv *priv,
                        le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf);
 #endif
 
-        priv->next_scan_jiffies = 0;
+        if (!priv->is_internal_short_scan)
+                priv->next_scan_jiffies = 0;
 }
 
 /* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
@@ -247,7 +248,11 @@ static void iwl_rx_scan_complete_notif(struct iwl_priv *priv,
                         goto reschedule;
         }
 
-        priv->next_scan_jiffies = 0;
+        if (!priv->is_internal_short_scan)
+                priv->next_scan_jiffies = 0;
+        else
+                priv->last_internal_scan_jiffies = jiffies;
+
         IWL_DEBUG_INFO(priv, "Setting scan to off\n");
 
         clear_bit(STATUS_SCANNING, &priv->status);
@@ -546,6 +551,8 @@ EXPORT_SYMBOL(iwl_mac_hw_scan);
  * internal short scan, this function should only been called while associated.
  * It will reset and tune the radio to prevent possible RF related problem
  */
+#define IWL_DELAY_NEXT_INTERNAL_SCAN (HZ*1)
+
 int iwl_internal_short_hw_scan(struct iwl_priv *priv)
 {
         int ret = 0;
@@ -565,6 +572,13 @@ int iwl_internal_short_hw_scan(struct iwl_priv *priv)
                 ret = -EAGAIN;
                 goto out;
         }
+        if (priv->last_internal_scan_jiffies &&
+            time_after(priv->last_internal_scan_jiffies +
+                       IWL_DELAY_NEXT_INTERNAL_SCAN, jiffies)) {
+                IWL_DEBUG_SCAN(priv, "internal scan rejected\n");
+                goto out;
+        }
+
         priv->scan_bands = 0;
         if (priv->band == IEEE80211_BAND_5GHZ)
                 priv->scan_bands |= BIT(IEEE80211_BAND_5GHZ);