iwlwifi: use iwl_is_associated when possible

This patch add uses of iwl_is_associated in places it is suitable in.
Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl3945-base.c

@@ -970,7 +970,7 @@ static int iwl3945_full_rxon_required(struct iwl3945_priv *priv)
 {
 
 	/* These items are only settable from the full RXON command */
-	if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ||
+	if (!(iwl3945_is_associated(priv)) ||
 	    compare_ether_addr(priv->staging_rxon.bssid_addr,
 			       priv->active_rxon.bssid_addr) ||
 	    compare_ether_addr(priv->staging_rxon.node_addr,
@@ -6836,7 +6836,7 @@ static void iwl3945_config_ap(struct iwl3945_priv *priv)
 		return;
 
 	/* The following should be done only at AP bring up */
-	if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) {
+	if (!(iwl3945_is_associated(priv))) {
 
 		/* RXON - unassoc (to set timing command) */
 		priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;

drivers/net/wireless/iwlwifi/iwl4965-base.c

@@ -192,7 +192,7 @@ static int iwl4965_full_rxon_required(struct iwl_priv *priv)
 {
 
 	/* These items are only settable from the full RXON command */
-	if (!(priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) ||
+	if (!(iwl_is_associated(priv)) ||
 	    compare_ether_addr(priv->staging_rxon.bssid_addr,
 			       priv->active_rxon.bssid_addr) ||
 	    compare_ether_addr(priv->staging_rxon.node_addr,
@@ -3008,7 +3008,7 @@ static void iwl4965_config_ap(struct iwl_priv *priv)
 		return;
 
 	/* The following should be done only at AP bring up */
-	if ((priv->active_rxon.filter_flags & RXON_FILTER_ASSOC_MSK) == 0) {
+	if (!(iwl_is_associated(priv))) {
 
 		/* RXON - unassoc (to set timing command) */
 		priv->staging_rxon.filter_flags &= ~RXON_FILTER_ASSOC_MSK;