Re: [U-Boot] [PATCH] display_buffer: fix misaligned buffer

30 Aug 2010


      Reinhard Meyer schrieb:
...
...

uint32_t linebuf[MAX_LINE_LENGTH_BYTES/4 + 1];

...
uint32_t *uip = (void*)linebuf;
   uint16_t *usp = (void*)linebuf;
   uint8_t *ucp = (void*)linebuf;
I personally prefer this above an attribute. Its disputeable but I prefer
to do things with "normal C constructs" where possible.
Reading this, after it had been sent, a perfect patch
should make the buffer an union:
union {
    uint32_t ui[MAX.../4+1];
    uint16_t us[MAX.../2+1];
    uint8_t  uc[MAX...+1];
} linebuf;
Reinhard