Re: [PATCH net-next v2 00/10] genetlink: support per-command policy dump

On Fri, 02 Oct 2020 16:58:33 +0200 Johannes Berg wrote:

quoted

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Or just give them both? I mean, in many (most?) cases they're anyway
going to be the same, so with the patches I posted you could just give
them the two different policy indexes, and they can be the same?  

Ah, I missed your posting!  

Huh, I even CC'ed you I think?

I filter stuff which is to:netdev cc:me and get to it when I read the
ML. There's too much of it.

https://lore.kernel.org/netdev/20201002090944.195891-1-johannes@sipsolutions.net/t/#u (local)

and userspace:

https://lore.kernel.org/netdev/20201002102609.224150-1-johannes@sipsolutions.net/t/#u (local)

quoted

 Like this?

[OP_POLICY]
   [OP]
      [DO]   -> u32
      [DUMP] -> u32  

Yeah, that'd work. I'd probably wonder if we shouldn't do

[OP_POLICY]
  [OP] -> (u32, u32)

in a struct with two u32's, since that's quite a bit more compact.

What do we do if the op doesn't have a dump or do callback?
0 is a valid policy ID, sadly :(