why is ipv6 fixly compiled in latest F15 and all F16 kernels?

[Frantisek Hanzlik]

Reindl Harald wrote:
> 
> 
> Am 08.04.2012 14:07, schrieb Frantisek Hanzlik:
>> Networking code has especial position, as bugs / problems /
>> misconfigurations in it have strong impact to machine security.
>> And I simply do not want do any ip6tables and other ipv6
>> security configuration - because I do not want use ipv6
>> _entirely_
> 
> so disable it
> what is your exactly problem?
> 
> i maintain 20 public fedora machines and no
> single one has any ipv6 configuration becuase
> i disabled it as explained - why can you do
> not the same?
> 
>>>> 2) something (NetworkManager or other malware;) can easily activate it.
>>>
>>> who told you so?
>>> how can NetworkManager override a KERNEL parameter?
>>
>> Have I after each update supervise whether NM or other stuff
>> made some unwanted changes - maybe even on kernel commandline?
>> And after each reboot again? No, I don´t want it.
> 
> boah you have to disable it once for years as you
> gad to disable the odule all the years before
> 
> NM is not in the position to overrdie kernel-parameters
> kernel-parameters are not changed by updates
> 
> so again: what is your problem?
> 
>>> in times where it was a loadable module it was the same
>>> you had to make sure to disable it AND it was loaded
>>> most of the time
>>>
>> even if I wipe it from disk most services was able reconstruct
>> it and load again ;)
> 
> so and what is the difference now?
> 
>>> the stack is disabled entirely and the memory footprint may
>>> be the same as unloaded module and code paths on different
>>> places which has to check this
>>
>> Here I eventually agree with You
> 
> hm you agree about memory fooprint
> you can disable ipv6 entirely
> 
> so again: what is your problem?

Yeah, finitely we are back at my beginning question, fine.
Maybe $SUBJECT is incomprehensible, my English is poor.
I was asked for any reason(s) why now is ipv6 compiled in
kernel instead of previous (several months ago) state when
it was kernel module, for years.
For the present I cannot see any good arguments or references.