[linux-2.6-block.git] / include / asm-sh / uaccess.h

#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 */
Commit	Line	Data
1e6760c5 MD	1	#ifndef __ASM_SH_UACCESS_H
	2	#define __ASM_SH_UACCESS_H
	3
9b01bd9e PM	4	#ifdef CONFIG_SUPERH32
9b01bd9e PM	5	# include "uaccess_32.h"
1da177e4	6	#else
9b01bd9e	7	# include "uaccess_64.h"
1da177e4	8	#endif
1e6760c5 MD	9
	10	static inline unsigned long
	11	copy_from_user(void to, const void __user from, unsigned long n)
	12	{
	13	unsigned long __copy_from = (unsigned long) from;
	14	__kernel_size_t __copy_size = (__kernel_size_t) n;
	15
	16	if (__copy_size && __access_ok(__copy_from, __copy_size))
	17	return __copy_user(to, from, __copy_size);
	18
	19	return __copy_size;
	20	}
	21
	22	static inline unsigned long
	23	copy_to_user(void __user to, const void from, unsigned long n)
	24	{
	25	unsigned long __copy_to = (unsigned long) to;
	26	__kernel_size_t __copy_size = (__kernel_size_t) n;
	27
	28	if (__copy_size && __access_ok(__copy_to, __copy_size))
	29	return __copy_user(to, from, __copy_size);
	30
	31	return __copy_size;
	32	}
	33
	34	#endif /* __ASM_SH_UACCESS_H */