iwlwifi: use ieee80211_is_data(fc)

iwl-agn-rs.c already uses this.

Cc: Zhu Yi <yi.zhu@intel.com>
Cc: Reinette Chatre <reinette.chatre@intel.com>
Cc: ipw3945-devel@lists.sourceforge.net
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-3945-rs.c

@@ -673,7 +673,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
 	s8 scale_action = 0;
 	unsigned long flags;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	u16 fc;
+	__le16 fc;
 	u16 rate_mask = sta ? sta->supp_rates[sband->band] : 0;
 	s8 max_rate_idx = -1;
 	struct iwl_priv *priv = (struct iwl_priv *)priv_r;
@@ -682,9 +682,8 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
 	IWL_DEBUG_RATE(priv, "enter\n");
 
 	/* Send management frames and NO_ACK data using lowest rate. */
-	fc = le16_to_cpu(hdr->frame_control);
-	if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
-	    info->flags & IEEE80211_TX_CTL_NO_ACK ||
+	fc = hdr->frame_control;
+	if (!ieee80211_is_data(fc) || info->flags & IEEE80211_TX_CTL_NO_ACK ||
 	    !sta || !priv_sta) {
 		IWL_DEBUG_RATE(priv, "leave: No STA priv data to update!\n");
 		info->control.rates[0].idx = rate_lowest_index(sband, sta);

drivers/net/wireless/iwlwifi/iwl-sta.c

@@ -1044,11 +1044,10 @@ EXPORT_SYMBOL(iwl_rxon_add_station);
 int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
 {
 	int sta_id;
-	u16 fc = le16_to_cpu(hdr->frame_control);
+	__le16 fc = hdr->frame_control;
 
 	/* If this frame is broadcast or management, use broadcast station id */
-	if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) ||
-	    is_multicast_ether_addr(hdr->addr1))
+	if (!ieee80211_is_data(fc) ||  is_multicast_ether_addr(hdr->addr1))
 		return priv->hw_params.bcast_sta_id;
 
 	switch (priv->iw_mode) {