Re: [RFC PATCH] arm64: topology: Map PPTT node offset to logic physical package id

[Sudeep Holla <sudeep.holla@arm.com>]

On 28/06/18 14:19, Jeremy Linton wrote:
> Hi,
> 
> On 06/28/2018 07:12 AM, Sudeep Holla wrote:

[...]

>>
>> OK sure. I liked the approach in Shunyong's patch. I was thinking if we
>> can avoid the list and dynamic allocation on each addition and make it
>> more simpler.
>>
> 
> This one reads simpler, but yes I agree we should try to avoid the
> dynamic allocation.
> 
> OTOH, I think that dropping the dynamic allocation leads to an algorithm
> that picks a value and replaces all the matches. Which of course is
> Andrew's patch, although I did have to read it a couple times to get a
> grasp how it works. I'm guessing that is due to the fact that he seems
> to have optimized 3 double loops into a single loop with two individual
> nested loops. AKA its probably more efficient than the naive
> implementation, but readability seems to have suffered a bit in the
> initial version he posted. I'm not sure the optimization is worth it,
> but I'm guessing there is a middle ground which makes it more readable.
> 

Completely agree. RFC from Andrew is not so readable and easy to understand.

-- 
Regards,
Sudeep