include/asm-sh/uaccess.h

   1 #ifndef __ASM_SH_UACCESS_H
   2 #define __ASM_SH_UACCESS_H
   3
   4 #ifdef CONFIG_SUPERH32
   5 # include "uaccess_32.h"
   6 #else
   7 # include "uaccess_64.h"
   8 #endif
   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 */