--- net80211/ieee80211_linux.h	2007-08-02 08:55:32.000000000 +0200
+++ net80211/ieee80211_linux.h	2007-08-02 08:56:02.000000000 +0200
@@ -539,6 +539,10 @@ static __inline unsigned long msecs_to_j
 	proc_dointvec(ctl, write, filp, buffer, lenp, ppos)
 #endif
 
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22)
+#include <linux/fs.h>
+#endif
+
 void ieee80211_sysctl_vattach(struct ieee80211vap *);
 void ieee80211_sysctl_vdetach(struct ieee80211vap *);
 int ieee80211_proc_vcreate(struct ieee80211vap *, struct file_operations *,