4 files changed, 15 insertions, 3 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c
index 93d513e14186..a07310fefcf2 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.c
@@ -406,6 +406,11 @@ static bool iwl3945_good_plcp_health(struct iwl_priv *priv,
         unsigned int plcp_msec;
         unsigned long plcp_received_jiffies;
 
+        if (priv->cfg->plcp_delta_threshold ==
+            IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
+                IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");
+                return rc;
+        }
         memcpy(&current_stat, pkt->u.raw, sizeof(struct
                         iwl3945_notif_statistics));
         /*
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rx.c b/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
index ad2bead25c82..d54edc326f81 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rx.c
@@ -166,6 +166,12 @@ bool iwl_good_plcp_health(struct iwl_priv *priv,
         unsigned int plcp_msec;
         unsigned long plcp_received_jiffies;
 
+        if (priv->cfg->plcp_delta_threshold ==
+            IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE) {
+                IWL_DEBUG_RADIO(priv, "plcp_err check disabled\n");
+                return rc;
+        }
+
         /*
          * check for plcp_err and trigger radio reset if it exceeds
          * the plcp error threshold plcp_delta.
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index cee3d12eb383..7d9ffc1575de 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -1430,10 +1430,10 @@ static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
                 return -EFAULT;
         if (sscanf(buf, "%d", &plcp) != 1)
                 return -EINVAL;
-        if ((plcp <= IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
+        if ((plcp < IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
                 priv->cfg->plcp_delta_threshold =
-                        IWL_MAX_PLCP_ERR_THRESHOLD_DEF;
+                        IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE;
         else
                 priv->cfg->plcp_delta_threshold = plcp;
         return count;
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 1af845c0f0b9..df07a144c786 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1036,11 +1036,12 @@ struct iwl_event_log {
  * This is the threshold value of plcp error rate per 100mSecs.  It is
  * used to set and check for the validity of plcp_delta.
  */
-#define IWL_MAX_PLCP_ERR_THRESHOLD_MIN  (0)
+#define IWL_MAX_PLCP_ERR_THRESHOLD_MIN  (1)
 #define IWL_MAX_PLCP_ERR_THRESHOLD_DEF  (50)
 #define IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF     (100)
 #define IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF (200)
 #define IWL_MAX_PLCP_ERR_THRESHOLD_MAX  (255)
+#define IWL_MAX_PLCP_ERR_THRESHOLD_DISABLE      (0)
 
 #define IWL_DELAY_NEXT_FORCE_RF_RESET  (HZ*3)
 #define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)