Re: [PATCH v4 2/5] drivers/of: do not add memory for unavailable nodes

[Reza Arbab]

Hi Alistair,

On Fri, Oct 21, 2016 at 05:22:54PM +1100, Alistair Popple wrote:
> From what I can tell it seems that kernels without this patch will try 
> and use this memory even if it is marked in the device-tree as 
> status="disabled" which could lead to problems for older kernels when 
> we start exporting this property from firmware.
>
> Arguably this might not be such a problem in practice as we probably 
> don't have many (if any) existing kernels that will boot on hardware 
> exporting these properties.

Yes, I think you've got it right.

> However given this patch seems fairly independent perhaps it is worth 
> sending as a separate fix if it is not going to make it into this 
> release?

Michael,

If this set as a whole is going to miss the release, would it be helpful 
for me to resend 1/5 and 2/5 as a separate set? They are the minimum 
needed to prevent the possible forward compatibility issue Alistair 
describes.

--
Reza Arbab