unsigned long __clear_user(void __user *to, unsigned long n);
#define __clear_user __clear_user
-long strncpy_from_user(char *dst, const char *src, long count);
-#define strncpy_from_user strncpy_from_user
-
-long strnlen_user(const char *s, long n);
-#define strnlen_user strnlen_user
-
#include <asm/segment.h>
#include <asm-generic/uaccess.h>