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SubjectRe: [PATCH net-next V3] net: Variable SLAAC: SLAAC with prefixes of arbitrary length in PIO
Hello,

---- On Thu, 12 Nov 2020 17:55:08 +0100 Hideaki Yoshifuji <hideaki.yoshifuji@miraclelinux.com> wrote ----

> Hi,
>
> 2020年11月13日(金) 0:46 Dmytro Shytyi <dmytro@shytyi.net>:
> >
> > Variable SLAAC: SLAAC with prefixes of arbitrary length in PIO (randomly
> > generated hostID or stable privacy + privacy extensions).
> > The main problem is that SLAAC RA or PD allocates a /64 by the Wireless
> > carrier 4G, 5G to a mobile hotspot, however segmentation of the /64 via
> > SLAAC is required so that downstream interfaces can be further subnetted.
> > Example: uCPE device (4G + WI-FI enabled) receives /64 via Wireless, and
> > assigns /72 to VNF-Firewall, /72 to WIFI, /72 to VNF-Router, /72 to
> > Load-Balancer and /72 to wired connected devices.
> > IETF document that defines problem statement:
> > draft-mishra-v6ops-variable-slaac-problem-stmt
> > IETF document that specifies variable slaac:
> > draft-mishra-6man-variable-slaac
> >
> > Signed-off-by: Dmytro Shytyi <dmytro@shytyi.net>
> > Reported-by: kernel test robot <lkp@intel.com>
> > ---
>
> > - write_lock_bh(&idev->lock);
> > + int ret;
> > +#if defined(CONFIG_ARCH_SUPPORTS_INT128)
> > + __int128 host_id;
> > + __int128 net_prfx;
> :
>
> No, this does not help anything.
> Please do not rely on __int128.

[Dmytro] Understood. Thank you.

> --yoshfuji
>

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