1 files changed, 0 insertions, 142 deletions
diff --git a/arch/mn10300/lib/usercopy.c b/arch/mn10300/lib/usercopy.c
deleted file mode 100644
index 39626912de98..000000000000
--- a/arch/mn10300/lib/usercopy.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/* MN10300 Userspace accessor functions
- *
- * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/uaccess.h>
-
-/*
- * Copy a null terminated string from userspace.
- */
-#define __do_strncpy_from_user(dst, src, count, res)		\
-do {								\
-	int w;							\
-	asm volatile(						\
-		"	mov	%1,%0\n"			\
-		"	cmp	0,%1\n"				\
-		"	beq	2f\n"				\
-		"0:\n"						\
-		"	movbu	(%5),%2\n"			\
-		"1:\n"						\
-		"	movbu	%2,(%6)\n"			\
-		"	inc	%5\n"				\
-		"	inc	%6\n"				\
-		"	cmp	0,%2\n"				\
-		"	beq	2f\n"				\
-		"	add	-1,%1\n"			\
-		"	bne	0b\n"				\
-		"2:\n"						\
-		"	sub	%1,%0\n"			\
-		"3:\n"						\
-		"	.section .fixup,\"ax\"\n"		\
-		"4:\n"						\
-		"	mov	%3,%0\n"			\
-		"	jmp	3b\n"				\
-		"	.previous\n"				\
-		"	.section __ex_table,\"a\"\n"		\
-		"	.balign 4\n"				\
-		"	.long 0b,4b\n"				\
-		"	.long 1b,4b\n"				\
-		"	.previous"				\
-		:"=&r"(res), "=r"(count), "=&r"(w)		\
-		:"i"(-EFAULT), "1"(count), "a"(src), "a"(dst)	\
-		: "memory", "cc");					\
-} while (0)
-
-long
-strncpy_from_user(char *dst, const char *src, long count)
-{
-	long res = -EFAULT;
-	if (access_ok(VERIFY_READ, src, 1))
-		__do_strncpy_from_user(dst, src, count, res);
-	return res;
-}
-
-
-/*
- * Clear a userspace memory
- */
-#define __do_clear_user(addr, size)		\
-do {						\
-	int w;					\
-	asm volatile(				\
-		"	cmp 0,%0\n"		\
-		"	beq 1f\n"		\
-		"	clr %1\n"		\
-		"0:	movbu %1,(%3,%2)\n"	\
-		"	inc %3\n"		\
-		"	cmp %0,%3\n"		\
-		"	bne 0b\n"		\
-		"1:\n"				\
-		"	sub %3,%0\n"		\
-		"2:\n"				\
-		".section .fixup,\"ax\"\n"	\
-		"3:	jmp 2b\n"		\
-		".previous\n"			\
-		".section __ex_table,\"a\"\n"	\
-		"       .balign 4\n"		\
-		"       .long 0b,3b\n"		\
-		".previous\n"			\
-		: "+r"(size), "=&r"(w)		\
-		: "a"(addr), "d"(0)		\
-		: "memory", "cc");		\
-} while (0)
-
-unsigned long
-__clear_user(void *to, unsigned long n)
-{
-	__do_clear_user(to, n);
-	return n;
-}
-
-unsigned long
-clear_user(void *to, unsigned long n)
-{
-	if (access_ok(VERIFY_WRITE, to, n))
-		__do_clear_user(to, n);
-	return n;
-}
-
-/*
- * Return the size of a string (including the ending 0)
- *
- * Return 0 on exception, a value greater than N if too long
- */
-long strnlen_user(const char *s, long n)
-{
-	unsigned long res, w;
-
-	if (!__addr_ok(s))
-		return 0;
-
-	if (n < 0 || n + (u_long) s > current_thread_info()->addr_limit.seg)
-		n = current_thread_info()->addr_limit.seg - (u_long)s;
-
-	asm volatile(
-		"0:	cmp %4,%0\n"
-		"	beq 2f\n"
-		"1:	movbu (%0,%3),%1\n"
-		"	inc %0\n"
-		"	cmp 0,%1\n"
-		"	beq 3f\n"
-		"	bra 0b\n"
-		"2:	clr %0\n"
-		"3:\n"
-		".section .fixup,\"ax\"\n"
-		"4:	jmp 2b\n"
-		".previous\n"
-		".section __ex_table,\"a\"\n"
-		"	.balign 4\n"
-		"	.long 1b,4b\n"
-		".previous\n"
-		:"=d"(res), "=&r"(w)
-		:"0"(0), "a"(s), "r"(n)
-		: "memory", "cc");
-	return res;
-}