1 files changed, 2 insertions, 0 deletions

diff --git a/net/mac80211/debugfs.h b/net/mac80211/debugfs.h
index 09cc9be34796..7c87529630f5 100644
--- a/net/mac80211/debugfs.h
+++ b/net/mac80211/debugfs.h
@@ -4,6 +4,8 @@
 #ifdef CONFIG_MAC80211_DEBUGFS
 extern void debugfs_hw_add(struct ieee80211_local *local);
 extern int mac80211_open_file_generic(struct inode *inode, struct file *file);
+extern int mac80211_format_buffer(char __user *userbuf, size_t count,
+                                  loff_t *ppos, char *fmt, ...);
 #else
 static inline void debugfs_hw_add(struct ieee80211_local *local)
 {