android_kernel_xiaomi_sm7250/arch/um/kernel/skas/include/uaccess-skas.h
Jesper Juhl e49332bd12 [PATCH] misc verify_area cleanups
There were still a few comments left refering to verify_area, and two
functions, verify_area_skas & verify_area_tt that just wrap corresponding
access_ok_skas & access_ok_tt functions, just like verify_area does for
access_ok - deprecate those.

There was also a few places that still used verify_area in commented-out
code, fix those up to use access_ok.

After applying this one there should not be anything left but finally
removing verify_area completely, which will happen after a kernel release
or two.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-01 08:59:08 -07:00

46 lines
1.4 KiB
C

/*
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
#ifndef __SKAS_UACCESS_H
#define __SKAS_UACCESS_H
#include "asm/errno.h"
#include "asm/fixmap.h"
#define access_ok_skas(type, addr, size) \
((segment_eq(get_fs(), KERNEL_DS)) || \
(((unsigned long) (addr) < TASK_SIZE) && \
((unsigned long) (addr) + (size) <= TASK_SIZE)) || \
((type == VERIFY_READ ) && \
((unsigned long) (addr) >= FIXADDR_USER_START) && \
((unsigned long) (addr) + (size) <= FIXADDR_USER_END) && \
((unsigned long) (addr) + (size) >= (unsigned long)(addr))))
static inline int __deprecated verify_area_skas(int type, const void * addr,
unsigned long size)
{
return(access_ok_skas(type, addr, size) ? 0 : -EFAULT);
}
extern int copy_from_user_skas(void *to, const void *from, int n);
extern int copy_to_user_skas(void *to, const void *from, int n);
extern int strncpy_from_user_skas(char *dst, const char *src, int count);
extern int __clear_user_skas(void *mem, int len);
extern int clear_user_skas(void *mem, int len);
extern int strnlen_user_skas(const void *str, int len);
#endif
/*
* Overrides for Emacs so that we follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-file-style: "linux"
* End:
*/