mac80211: clean up sta_info and document locking

This patch cleans up the sta_info struct and documents how
each set of variables is locked. Notably, flags locking is
completely missing. It also adds kernel-doc for some (but
not all yet) members of the struct.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 73cfb4d..fc2c1a1 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -67,7 +67,7 @@
 STA_FILE(last_signal, last_signal, D);
 STA_FILE(last_noise, last_noise, D);
 STA_FILE(channel_use, channel_use, D);
-STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D);
+STA_FILE(wep_weak_iv_count, wep_weak_iv_count, LU);
 
 static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
 			      size_t count, loff_t *ppos)