Re: [PATCH net] ipv6: addrconf: reduce default temp_valid_lft to 2 days

[Fernando Fernandez Mancera <fmancera@suse.de>]

On 2/13/26 3:44 PM, Fernando Fernandez Mancera wrote:
> On 2/13/26 3:34 PM, Eric Dumazet wrote:
>> On Fri, Feb 13, 2026 at 3:00 PM Simon Horman <horms@kernel.org> wrote:
>>>
>>> On Wed, Feb 11, 2026 at 09:20:03PM +0100, Fernando Fernandez Mancera 
>>> wrote:
>>>> This is a recommendation from RFC 8981 and it was intended to be 
>>>> changed
>>>> by commit 969c54646af0 ("ipv6: Implement draft-ietf-6man-rfc4941bis")
>>>> but it only changed the sysctl documentation.
>>>>
>>>> Fixes: 969c54646af0 ("ipv6: Implement draft-ietf-6man-rfc4941bis")
>>>> Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
>>>
>>> Reviewed-by: Simon Horman <horms@kernel.org>
>>
>>
>> I would recommend adding a comment, because final RFC states
>> "TEMP_VALID_LIFETIME -- Default value: 1 week. Users should be able
>> to override the default value.
>>
>> https://datatracker.ietf.org/doc/html/rfc4941#section-5
>>
>> So... do we still need a different value in linux, and why ?
>>
> 
> RFC 8981 obsoletes RFC 4941, the new RFC states
> "TEMP_VALID_LIFETIME -- Default value: 2 days. Users should be able to 
> override the default value."
> 
> https://datatracker.ietf.org/doc/html/rfc8981#section-3.8
> 
> I didn't include the reasoning because it was already on the blamed 
> commit which comes from the RFC 8981 too.
> 
> https://datatracker.ietf.org/doc/html/rfc8981#section-4
> 
> Anyway, I am fine adding a comment or mentioning it on the commit 
> message if needed.
> 

I noticed the patch is marked as "Changes Requested", is there some 
action pending from me?

Thanks,
Fernando.