nl80211: clean up function definitions

I don't like the 'extern' keyword much when it's not
necessary, it makes lines rather long.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/wireless/nl80211.h

@@ -3,41 +3,41 @@
 
 #include "core.h"
 
-extern int nl80211_init(void);
-extern void nl80211_exit(void);
-extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
-extern void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
+int nl80211_init(void);
+void nl80211_exit(void);
+void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
+void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
 			     struct net_device *netdev);
-extern void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
+void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
 			    struct net_device *netdev);
-extern void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
+void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
 			       struct net_device *netdev);
-extern void nl80211_send_reg_change_event(struct regulatory_request *request);
-extern void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
+void nl80211_send_reg_change_event(struct regulatory_request *request);
+void nl80211_send_rx_auth(struct cfg80211_registered_device *rdev,
 			  struct net_device *netdev,
 			  const u8 *buf, size_t len);
-extern void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
+void nl80211_send_rx_assoc(struct cfg80211_registered_device *rdev,
 			   struct net_device *netdev,
 			   const u8 *buf, size_t len);
-extern void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
+void nl80211_send_deauth(struct cfg80211_registered_device *rdev,
 			 struct net_device *netdev,
 			 const u8 *buf, size_t len);
-extern void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
+void nl80211_send_disassoc(struct cfg80211_registered_device *rdev,
 			   struct net_device *netdev,
 			   const u8 *buf, size_t len);
-extern void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
+void nl80211_send_auth_timeout(struct cfg80211_registered_device *rdev,
 			       struct net_device *netdev,
 			       const u8 *addr);
-extern void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
+void nl80211_send_assoc_timeout(struct cfg80211_registered_device *rdev,
 				struct net_device *netdev,
 				const u8 *addr);
-extern void
+void
 nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
 			    struct net_device *netdev, const u8 *addr,
 			    enum nl80211_key_type key_type,
 			    int key_id, const u8 *tsc);
 
-extern void
+void
 nl80211_send_beacon_hint_event(struct wiphy *wiphy,
 			       struct ieee80211_channel *channel_before,
 			       struct ieee80211_channel *channel_after);