Re: [PATCH 01/15] netlink: specs: Introduce multi-message blobs for SPDM

[Jakub Kicinski <kuba@kernel.org>]

On Sun, 2 Aug 2026 17:58:06 +0000 Ankit Agrawal wrote:
> > I don't like this, sorry. You need to come up with something outside
> > of netlink or more netlink-y.  
> 
> Hi Jakub, picking this up and continuing on with the Dan's work.
> 
> In an earlier discussion [1], two options were mentioned.
> 
> > Alright, so to make this more Netlink-y you can either:
>   >  - delete the F_MULTI and replicate other attrs in each message and
>   >    add an offset attr; this will make each message in the dump more
>   >    standalone.
>   >  - keep the F_MULTI but object_val has to be a multi-attr, and then
>   >    we have to teach YNL to correctly append the attrs.  
> 
> So I'll update to the first option of standalone messages with an offset attribute.
> i.e. every dump message with a new offset for the chunk it carries and with
> reassembly left to the consumer. I suppose that aligns with your preference?
> 
> [1] https://lore.kernel.org/all/20260318170014.6650d2bf@kernel.org/

Yes, cleanly building the blob in netlink is going to be tough.
First option would be uncontroversial from Netlink PoV, AFAICT.
But also please spend a bit of time on trying to come up with
a better way of moving the blobs.