--- linux-2.6.4/drivers/ieee1394/ieee1394_core.c	2004-03-11 03:55:23.000000000 +0100
+++ linux-2.6.4-patched/drivers/ieee1394/ieee1394_core.c	2004-03-11 13:34:07.000000000 +0100
@@ -25,6 +25,7 @@
 #include <linux/list.h>
 #include <linux/string.h>
 #include <linux/init.h>
+#include <linux/smp_lock.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>