diff --git a/drivers/message/i2o/core.h b/drivers/message/i2o/core.h
index 184974cc734d..dc388a3ff5e0 100644
--- a/drivers/message/i2o/core.h
+++ b/drivers/message/i2o/core.h
@@ -38,6 +38,9 @@ extern struct device_attribute i2o_device_attrs[];
 extern void i2o_device_remove(struct i2o_device *);
 extern int i2o_device_parse_lct(struct i2o_controller *);
 
+int i2o_parm_issue(struct i2o_device *i2o_dev, int cmd, void *oplist,
+		   int oplen, void *reslist, int reslen);
+
 /* IOP */
 extern struct i2o_controller *i2o_iop_alloc(void);
 
diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c
index 89daf67b764d..7d23e082bf26 100644
--- a/drivers/message/i2o/i2o_config.c
+++ b/drivers/message/i2o/i2o_config.c
@@ -36,9 +36,9 @@
 
 #include <asm/uaccess.h>
 
-#define SG_TABLESIZE		30
+#include "core.h"
 
-extern int i2o_parm_issue(struct i2o_device *, int, void *, int, void *, int);
+#define SG_TABLESIZE		30
 
 static int i2o_cfg_ioctl(struct inode *, struct file *, unsigned int,
 			 unsigned long);