[PATCH 3/5] env/fat.c: remove private CMD_SAVEENV logic

[Rasmus Villemoes]

On 21/02/2020 17.19, Tom Rini wrote:
> On Fri, Feb 21, 2020 at 05:14:14PM +0100, Wolfgang Denk wrote:
>> Dear Rasmus,
>>
>> In message <5265fdd5-3992-4e5f-3235-5586b3b77dd7 at prevas.dk> you wrote:
>>>
>>> So without the fat.c patch, CONFIG_SPL_SAVEENV is effectively ignored.
>>
>> OK, but what about bords that don't store the envionment in a file
>> system, but instead for example in (parallel or SPI) NOR flash or in
>> a UBI volume?
> 
> I think the intent is that there is no change today but the door is now
> open for someone that can test / confirm changes there to do so.

Yes, exactly. I could have just fixed sf.c which is the one I need for
my current project, but it turns out that without the ability to say
CONFIG_IS_ENABLED(SAVEENV) the changes to sf.c would be significantly
uglier, so it seemed better to provide the infrastructure that will also
be useful for converting other storage drivers to honour CONFIG_SPL_SAVEENV.

Rasmus