[U-Boot] [PATCH v2] OMAP3 MMC: Fix warning dereferencing type-punned pointer

[Dirk Behme <dirk.behme@googlemail.com>]

Tom wrote:
> Dirk Behme wrote:
>> Fix warning
>>
>> dereferencing type-punned pointer will break strict-aliasing rules
>>
>> Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
>> CC: Steve Sakoman <sakoman@gmail.com>
>>
> 
> This may be improved by consolidating the unions into the omap3 mmc.h file
> and using a pointer to union in the mmc_send_cmd.

Hmmh, I'm not so familiar with unions ;) But moving

union {
	unsigned int resp[4];
	mmc_resp_r3 r3;
	mmc_resp_r6 r6;
} mmc_resp;

and

union {
	unsigned int resp[4];
	mmc_csd_reg_t Card_CSD;
} mmc_resp;

into the omap3 mmc.h would mean to make them global and to permanently 
allocate the space for resp[4]? That is, make local variables 
allocated locally (on stack?) move to global variables using 
(wasting?) some additional memory? If so, I'd like to keep stuff local 
as done by the original version. Sorry if I missed something ;)

Best regards

Dirk