#define SK_ADDR_EQUAL(a1,a2) (!memcmp(a1,a2,6))
+#if !defined(__OPTIMIZE__) || !defined(__KERNEL__)
+#warning You must compile this file with the correct options!
+#warning See the last lines of the source file.
+#error You must compile this driver with "-O".
+#endif
+
+#include <linux/version.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>