#include <linux/config.h>
#include <linux/ioctl.h>
+#include <linux/errno.h>
#define MTRR_IOCTL_BASE 'M'
#ifdef __KERNEL__
-extern char *mtrr_strings[];
-
/* The following functions are for use by other drivers */
# ifdef CONFIG_MTRR
extern int mtrr_add (unsigned long base, unsigned long size,