kernel/2.6.29.6-aldebaran-rt/include/linux/unaligned/packed_struct.h

   1 #ifndef _LINUX_UNALIGNED_PACKED_STRUCT_H
   2 #define _LINUX_UNALIGNED_PACKED_STRUCT_H
   3
   4 #include <linux/kernel.h>
   5
   6 struct __una_u16 { u16 x __attribute__((packed)); };
   7 struct __una_u32 { u32 x __attribute__((packed)); };
   8 struct __una_u64 { u64 x __attribute__((packed)); };
   9
  10 static inline u16 __get_unaligned_cpu16(const void *p)
  11 {
  12         const struct __una_u16 *ptr = (const struct __una_u16 *)p;
  13         return ptr->x;
  14 }
  15
  16 static inline u32 __get_unaligned_cpu32(const void *p)
  17 {
  18         const struct __una_u32 *ptr = (const struct __una_u32 *)p;
  19         return ptr->x;
  20 }
  21
  22 static inline u64 __get_unaligned_cpu64(const void *p)
  23 {
  24         const struct __una_u64 *ptr = (const struct __una_u64 *)p;
  25         return ptr->x;
  26 }
  27
  28 static inline void __put_unaligned_cpu16(u16 val, void *p)
  29 {
  30         struct __una_u16 *ptr = (struct __una_u16 *)p;
  31         ptr->x = val;
  32 }
  33
  34 static inline void __put_unaligned_cpu32(u32 val, void *p)
  35 {
  36         struct __una_u32 *ptr = (struct __una_u32 *)p;
  37         ptr->x = val;
  38 }
  39
  40 static inline void __put_unaligned_cpu64(u64 val, void *p)
  41 {
  42         struct __una_u64 *ptr = (struct __una_u64 *)p;
  43         ptr->x = val;
  44 }
  45
  46 #endif /* _LINUX_UNALIGNED_PACKED_STRUCT_H */