tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * linux/arch/unicore32/include/asm/uaccess.h
3 *
4 * Code specific to PKUnity SoC and UniCore ISA
5 *
6 * Copyright (C) 2001-2010 GUAN Xue-tao
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12#ifndef __UNICORE_UACCESS_H__
13#define __UNICORE_UACCESS_H__
14
15#include <asm/memory.h>
16
17#define __strncpy_from_user __strncpy_from_user
18#define __strnlen_user __strnlen_user
19#define __clear_user __clear_user
20
21#define __kernel_ok (uaccess_kernel())
22#define __user_ok(addr, size) (((size) <= TASK_SIZE) \
23 && ((addr) <= TASK_SIZE - (size)))
24#define __access_ok(addr, size) (__kernel_ok || __user_ok((addr), (size)))
25
26extern unsigned long __must_check
27raw_copy_from_user(void *to, const void __user *from, unsigned long n);
28extern unsigned long __must_check
29raw_copy_to_user(void __user *to, const void *from, unsigned long n);
30extern unsigned long __must_check
31__clear_user(void __user *addr, unsigned long n);
32extern unsigned long __must_check
33__strncpy_from_user(char *to, const char __user *from, unsigned long count);
34extern unsigned long
35__strnlen_user(const char __user *s, long n);
36#define INLINE_COPY_FROM_USER
37#define INLINE_COPY_TO_USER
38
39#include <asm-generic/uaccess.h>
40
41#endif /* __UNICORE_UACCESS_H__ */