android_kernel_xiaomi_sm8350/include/asm-sh/uaccess.h
Magnus Damm 1e6760c5c4 sh: make copy_to/from_user() static inline
This patch changes copy_from_user() and copy_to_user() from macros
into static inline functions. This way we can use them as function
pointers. Also unify the 64 bit and 32 bit versions.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-02-14 14:22:09 +09:00

35 lines
826 B
C

#ifndef __ASM_SH_UACCESS_H
#define __ASM_SH_UACCESS_H
#ifdef CONFIG_SUPERH32
# include "uaccess_32.h"
#else
# include "uaccess_64.h"
#endif
static inline unsigned long
copy_from_user(void *to, const void __user *from, unsigned long n)
{
unsigned long __copy_from = (unsigned long) from;
__kernel_size_t __copy_size = (__kernel_size_t) n;
if (__copy_size && __access_ok(__copy_from, __copy_size))
return __copy_user(to, from, __copy_size);
return __copy_size;
}
static inline unsigned long
copy_to_user(void __user *to, const void *from, unsigned long n)
{
unsigned long __copy_to = (unsigned long) to;
__kernel_size_t __copy_size = (__kernel_size_t) n;
if (__copy_size && __access_ok(__copy_to, __copy_size))
return __copy_user(to, from, __copy_size);
return __copy_size;
}
#endif /* __ASM_SH_UACCESS_H */