orinoco: use cfg80211_find_ie

Instead of using a local function.
Signed-off-by: David Kilroy <kilroyd@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/orinoco/main.h

@@ -33,18 +33,6 @@ int orinoco_commit(struct orinoco_private *priv);
 void orinoco_reset(struct work_struct *work);
 
 /* Information element helpers - find a home for these... */
-static inline u8 *orinoco_get_ie(u8 *data, size_t len,
-				 enum ieee80211_eid eid)
-{
-	u8 *p = data;
-	while ((p + 2) < (data + len)) {
-		if (p[0] == eid)
-			return p;
-		p += p[1] + 2;
-	}
-	return NULL;
-}
-
 #define WPA_OUI_TYPE	"\x00\x50\xF2\x01"
 #define WPA_SELECTOR_LEN 4
 static inline u8 *orinoco_get_wpa_ie(u8 *data, size_t len)

drivers/net/wireless/orinoco/scan.c

@@ -126,7 +126,7 @@ void orinoco_add_extscan_result(struct orinoco_private *priv,
 {
 	struct wiphy *wiphy = priv_to_wiphy(priv);
 	struct ieee80211_channel *channel;
-	u8 *ie;
+	const u8 *ie;
 	u64 timestamp;
 	s32 signal;
 	u16 capability;
@@ -135,7 +135,7 @@ void orinoco_add_extscan_result(struct orinoco_private *priv,
 	int chan, freq;
 
 	ie_len = len - sizeof(*bss);
-	ie = orinoco_get_ie(bss->data, ie_len, WLAN_EID_DS_PARAMS);
+	ie = cfg80211_find_ie(WLAN_EID_DS_PARAMS, bss->data, ie_len);
 	chan = ie ? ie[2] : 0;
 	freq = ieee80211_dsss_chan_to_freq(chan);
 	channel = ieee80211_get_channel(wiphy, freq);