It will be used later by the IBSS CSA implementation of mac80211.
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
                             const struct cfg80211_chan_def *chandef,
                             u32 prohibited_flags);
 
+/**
+ * cfg80211_chandef_dfs_required - checks if radar detection is required
+ * @wiphy: the wiphy to validate against
+ * @chandef: the channel definition to check
+ * Return: 1 if radar detection is required, 0 if it is not, < 0 on error
+ */
+int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
+                                 const struct cfg80211_chan_def *chandef);
+
 /**
  * ieee80211_chandef_rate_flags - returns rate flags for a channel
  *
 
        return cfg80211_get_chans_dfs_required(wiphy, chandef->center_freq2,
                                               width);
 }
+EXPORT_SYMBOL(cfg80211_chandef_dfs_required);
 
 static bool cfg80211_secondary_chans_ok(struct wiphy *wiphy,
                                        u32 center_freq, u32 bandwidth,
 
                                 enum cfg80211_chan_mode chanmode,
                                 u8 radar_detect);
 
-/**
- * cfg80211_chandef_dfs_required - checks if radar detection is required
- * @wiphy: the wiphy to validate against
- * @chandef: the channel definition to check
- * Return: 1 if radar detection is required, 0 if it is not, < 0 on error
- */
-int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
-                                 const struct cfg80211_chan_def *c);
-
 void cfg80211_set_dfs_state(struct wiphy *wiphy,
                            const struct cfg80211_chan_def *chandef,
                            enum nl80211_dfs_state dfs_state);