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

[Reinhard Meyer]

On 30.08.2010 20:03, Albert ARIBAUD wrote:
> Le 30/08/2010 18:47, Detlev Zundel a écrit :
>> Hi Reinhard,
>>
>>> Detlev Zundel schrieb:
>>>
>>>>> Detlev, regarding the discussion I would only point out that we have to
>>>>> be sure that such kind of patch will be merged in the current release.
>>>>> It would be a real pity if a new official realease is published and then
>>>>> even a simple "md" command does not work on ARM.
>>>>
>>>> I don't see a problem here.  All proposed patches (with/without
>>>> attribute and union) surely fix a bug, so they will go into mainline
>>>> when consent is reached on which one to use.  This should well happen
>>>> before the pending release on September 12th[1].
>>>>
>>>> Am I misunderstanding anything here?
>>>
>>> No... but I would require that the "union" approach would be wanted,
>>> BEFORE I put effort into doing it.
>>
>> I'd very much appreciate your effort as I want the solution now that you
>> did whet my appetite.
>
> Besides, re: 'fixing with the side-effect of a different thing': I think
> the alignment caused by using an union is not actually a side effect of
> it but an intended effect of it, as the compiler must ensure correct
> alignment of each union member -- on architectures where alignment of
> 32-bit ints is unnecessary, the union will not cause undue alignment,
> whereas the __aligned__ attribute would.
>
> Amicalement,

I'll provide a patch tomorrow, right now I am not near a LinuX system ;)
Reinhard