iwlwifi: make WEP key restoring explicit

The firmware clears default WEP keys on
transitions to !associated, so we need
to restore them just like stations. This
is rather implicit as part of sending a
station right now, which is odd. Make it
explicit instead and only for agn since
3945 doesn't use hw crypto for WEP.

Due to that, iwl_send_static_wepkey_cmd
is now only used in iwl-sta.c and can be
static.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>

1 files changed, 10 insertions, 15 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index 978604f8ae92..8a3b0edf83b0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -158,6 +158,11 @@ int iwl_commit_rxon(struct iwl_priv *priv)
 		}
 		iwl_clear_ucode_stations(priv, false);
 		iwl_restore_stations(priv);
+		ret = iwl_restore_default_wep_keys(priv);
+		if (ret) {
+			IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
+			return ret;
+		}
 	}
 
 	IWL_DEBUG_INFO(priv, "Sending RXON\n"
@@ -185,6 +190,11 @@ int iwl_commit_rxon(struct iwl_priv *priv)
 		memcpy(active_rxon, &priv->staging_rxon, sizeof(*active_rxon));
 		iwl_clear_ucode_stations(priv, false);
 		iwl_restore_stations(priv);
+		ret = iwl_restore_default_wep_keys(priv);
+		if (ret) {
+			IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
+			return ret;
+		}
 	}
 
 	priv->start_calib = 0;
@@ -3030,19 +3040,6 @@ static void iwl_mac_sta_notify(struct ieee80211_hw *hw,
 	}
 }
 
-/**
- * iwl_restore_wepkeys - Restore WEP keys to device
- */
-static void iwl_restore_wepkeys(struct iwl_priv *priv)
-{
-	mutex_lock(&priv->mutex);
-	if (priv->iw_mode == NL80211_IFTYPE_STATION &&
-	    priv->default_wep_key &&
-	    iwl_send_static_wepkey_cmd(priv, 0))
-		IWL_ERR(priv, "Could not send WEP static key\n");
-	mutex_unlock(&priv->mutex);
-}
-
 static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
 			      struct ieee80211_vif *vif,
 			      struct ieee80211_sta *sta)
@@ -3069,8 +3066,6 @@ static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
 		return ret;
 	}
 
-	iwl_restore_wepkeys(priv);
-
 	/* Initialize rate scaling */
 	IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
 		       sta->addr);