[PATCH] ieee80211: add ieee80211_channel_to_freq

The routines that interrogate the ieee80211_geo struct are missing a
channel to frequency entry. This patch adds it.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/include/net/ieee80211.h b/include/net/ieee80211.h
index d56b292..bbd85cd 100644
--- a/include/net/ieee80211.h
+++ b/include/net/ieee80211.h
@@ -1291,6 +1291,8 @@
 extern const struct ieee80211_channel *ieee80211_get_channel(struct
 							     ieee80211_device
 							     *ieee, u8 channel);
+extern u32 ieee80211_channel_to_freq(struct ieee80211_device * ieee,
+				      u8 channel);
 
 /* ieee80211_wx.c */
 extern int ieee80211_wx_get_scan(struct ieee80211_device *ieee,