Re: [PATCH] oid_registry: allow arbitrary size OIDs

[Andrew Morton]

On Tue, 25 Nov 2025 13:19:56 -0500 James Bottomley <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote:

> The current OID registry parser uses 64 bit arithmetic which limits us
> to supporting 64 bit or smaller OIDs.  This isn't usually a problem
> except that it prevents us from representing the 2.25. prefix OIDs
> which are the OID representation of UUIDs and have a 128 bit number
> following the prefix.  Rather than import not often used perl
> arithmetic modules, replace the current perl 64 bit arithmetic with a
> callout to bc, which is arbitrary precision.
> 

How big a problem is this in shipped kernels?  Should we backport it?