nios2: use generic strncpy_from_user() and strnlen_user()

This change enables the generic strncpy_from_user() and strnlen_user()

Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>

1 files changed, 0 insertions, 33 deletions

diff --git a/arch/nios2/mm/uaccess.c b/arch/nios2/mm/uaccess.c
index 804983317766..34f10af8ea40 100644
--- a/arch/nios2/mm/uaccess.c
+++ b/arch/nios2/mm/uaccess.c
@@ -128,36 +128,3 @@ asm(
 	".word 12b,13b\n"
 	".previous\n");
 EXPORT_SYMBOL(raw_copy_to_user);
-
-long strncpy_from_user(char *__to, const char __user *__from, long __len)
-{
-	int l = strnlen_user(__from, __len);
-	int is_zt = 1;
-
-	if (l > __len) {
-		is_zt = 0;
-		l = __len;
-	}
-
-	if (l == 0 || copy_from_user(__to, __from, l))
-		return -EFAULT;
-
-	if (is_zt)
-		l--;
-	return l;
-}
-
-long strnlen_user(const char __user *s, long n)
-{
-	long i;
-
-	for (i = 0; i < n; i++) {
-		char c;
-
-		if (get_user(c, s + i) == -EFAULT)
-			return 0;
-		if (c == 0)
-			return i + 1;
-	}
-	return n + 1;
-}