[RFC PATCH] ARM: mm: ADD descriptor string to CONFIG_DMA_ADDR_64BIT_T

R, Sricharan r.sricharan at ti.com
Wed Sep 12 09:20:00 EDT 2012

On Wed, Sep 12, 2012 at 6:27 PM, Shilimkar, Santosh
<santosh.shilimkar at ti.com> wrote:
> On Wed, Sep 12, 2012 at 6:16 PM, Cyril Chemparathy <cyril at ti.com> wrote:
>> On 9/12/2012 1:50 AM, R Sricharan wrote:
>>> Even if CONFIG_DMA_ADDR_64BIT_T is enabled by the defconfig,
>>> the feature is not getting selected.
>>> Adding a string description in the Kconfig resolves this.
>>> But not sure if this is the right way to fix this.
>> Shouldn't you be selecting this in your 64-bit dma address capable arch
>> instead?
> Yes. The selection to enable  CONFIG_DMA_ADDR_64BIT_T happens
> in the arch which needs it. Since this option was made as simple bool,
> looks like because of some KCONFIG magic, it was not getting selected.
> Adding some help text does fix the issue and thats is the patch all about.
  Correct. So even if you select this in the arch/defconfig,
  today this option is not getting enabled in the finally generated
  .config. So by adding this description text, this can really be selected
   from arch level.


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