include/asm-generic/unaligned.h

   1 #ifndef _ASM_GENERIC_UNALIGNED_H_
   2 #define _ASM_GENERIC_UNALIGNED_H_
   3
   4 /*
   5  * For the benefit of those who are trying to port Linux to another
   6  * architecture, here are some C-language equivalents.
   7  */
   8
   9 #include <asm/string.h>
  10
  11
  12 #define get_unaligned(ptr) \
  13   ({ __typeof__(*(ptr)) __tmp; memcpy(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
  14
  15 #define put_unaligned(val, ptr)                         \
  16   ({ __typeof__(*(ptr)) __tmp = (val);                  \
  17      memcpy((ptr), &__tmp, sizeof(*(ptr)));             \
  18      (void)0; })
  19
  20 #endif /* _ASM_GENERIC_UNALIGNED_H */