__kernel_size_t __clear_user_hexagon(void __user *dest, unsigned long count);
#define __clear_user(a, s) __clear_user_hexagon((a), (s))
-#define __strncpy_from_user(dst, src, n) hexagon_strncpy_from_user(dst, src, n)
-
-/* get around the ifndef in asm-generic/uaccess.h */
-#define __strnlen_user __strnlen_user
-
-extern long __strnlen_user(const char __user *src, long n);
-
-static inline long hexagon_strncpy_from_user(char *dst, const char __user *src,
- long n);
-
#include <asm-generic/uaccess.h>
-/* Todo: an actual accelerated version of this. */
-static inline long hexagon_strncpy_from_user(char *dst, const char __user *src,
- long n)
-{
- long res = __strnlen_user(src, n);
-
- if (unlikely(!res))
- return -EFAULT;
-
- if (res > n) {
- long left = raw_copy_from_user(dst, src, n);
- if (unlikely(left))
- memset(dst + (n - left), 0, left);
- return n;
- } else {
- long left = raw_copy_from_user(dst, src, res);
- if (unlikely(left))
- memset(dst + (res - left), 0, left);
- return res-1;
- }
-}
#endif