Re: [PATCH stable 5.10 0/3] ARM FDT relocation backports

On Sun, May 09, 2021 at 06:22:05PM -0700, Florian Fainelli wrote:

On 5/9/2021 12:17 PM, Ard Biesheuvel wrote:

quoted

On Sun, 9 May 2021 at 19:30, Florian Fainelli [off-list ref] wrote:

quoted

Hi Greg, Sasha,

These patches were not marked with a Fixes: tag but they do fix booting
ARM 32-bit platforms that have specific FDT placement and would cause
boot failures like these:

I don't have any objections to backporting these changes, but it would
be helpful if you could explain why this is a regression. Also, you'll
need to pull in the following patch as well

This does not qualify as a regression in that it has never worked for
the specific platform that I have shown above until your 3 commits came
in and fixed that particular FDT placement. To me this qualifies as a
bug fix, and given that the 3 (now 4) commits applied without hunks, it
seems reasonable to me to back port those to stable.

As this isn't a regression, why not just use 5.12 on these platforms?
Why is 5.4 and 5.10 needed?

thanks,

greg k-h