cfg80211: expose cfg80211_calculate_bitrate()

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

include/net/cfg80211.h

@@ -3337,6 +3337,14 @@ int cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
 				 struct ieee80211_channel *chan,
 				 enum nl80211_channel_type channel_type);
 
+/*
+ * cfg80211_calculate_bitrate - calculate actual bitrate (in 100Kbps units)
+ * @rate: given rate_info to calculate bitrate from
+ *
+ * return 0 if MCS index >= 32
+ */
+u16 cfg80211_calculate_bitrate(struct rate_info *rate);
+
 /* Logging, debugging and troubleshooting/diagnostic helpers. */
 
 /* wiphy_printk helpers, similar to dev_printk */

net/wireless/util.c

@@ -904,6 +904,7 @@ u16 cfg80211_calculate_bitrate(struct rate_info *rate)
 	/* do NOT round down here */
 	return (bitrate + 50000) / 100000;
 }
+EXPORT_SYMBOL(cfg80211_calculate_bitrate);
 
 int cfg80211_validate_beacon_int(struct cfg80211_registered_device *rdev,
 				 u32 beacon_int)