#define __MAC80211_DEBUGFS_H
#ifdef CONFIG_MAC80211_DEBUGFS
-extern void debugfs_hw_add(struct ieee80211_local *local);
-extern int mac80211_format_buffer(char __user *userbuf, size_t count,
- loff_t *ppos, char *fmt, ...);
+void debugfs_hw_add(struct ieee80211_local *local);
+int __printf(4, 5) 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)
{