b43legacy: use frame control helpers

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43legacy/xmit.c

@@ -442,7 +442,7 @@ void b43legacy_rx(struct b43legacy_wldev *dev,
 	struct b43legacy_plcp_hdr6 *plcp;
 	struct ieee80211_hdr *wlhdr;
 	const struct b43legacy_rxhdr_fw3 *rxhdr = _rxhdr;
-	u16 fctl;
+	__le16 fctl;
 	u16 phystat0;
 	u16 phystat3;
 	u16 chanstat;
@@ -480,7 +480,7 @@ void b43legacy_rx(struct b43legacy_wldev *dev,
 		goto drop;
 	}
 	wlhdr = (struct ieee80211_hdr *)(skb->data);
-	fctl = le16_to_cpu(wlhdr->frame_control);
+	fctl = wlhdr->frame_control;
 
 	if ((macstat & B43legacy_RX_MAC_DEC) &&
 	    !(macstat & B43legacy_RX_MAC_DECERR)) {
@@ -499,11 +499,11 @@ void b43legacy_rx(struct b43legacy_wldev *dev,
 
 		if (dev->key[keyidx].algorithm != B43legacy_SEC_ALGO_NONE) {
 			/* Remove PROTECTED flag to mark it as decrypted. */
-			B43legacy_WARN_ON(!(fctl & IEEE80211_FCTL_PROTECTED));
-			fctl &= ~IEEE80211_FCTL_PROTECTED;
-			wlhdr->frame_control = cpu_to_le16(fctl);
+			B43legacy_WARN_ON(!ieee80211_has_protected(fctl));
+			fctl &= ~cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+			wlhdr->frame_control = fctl;
 
-			wlhdr_len = ieee80211_get_hdrlen(fctl);
+			wlhdr_len = ieee80211_hdrlen(fctl);
 			if (unlikely(skb->len < (wlhdr_len + 3))) {
 				b43legacydbg(dev->wl, "RX: Packet size"
 					     " underrun3\n");
@@ -556,9 +556,7 @@ void b43legacy_rx(struct b43legacy_wldev *dev,
 	 * of timestamp, i.e. about 65 milliseconds after the PHY received
 	 * the first symbol.
 	 */
-	if (((fctl & (IEEE80211_FCTL_FTYPE | IEEE80211_FCTL_STYPE))
-	    == (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON)) ||
-	    dev->wl->radiotap_enabled) {
+	if (ieee80211_is_beacon(fctl) || dev->wl->radiotap_enabled) {
 		u16 low_mactime_now;
 
 		b43legacy_tsf_read(dev, &status.mactime);