[PATCH net-next 06/11] tools: ynl-gen: don't validate nested array attribute types

[Jakub Kicinski]

On Thu,  4 Sep 2025 22:01:29 +0000 Asbjørn Sloth Tønnesen wrote:
> In nested arrays don't require that the intermediate
> attribute type should be a valid attribute type, it
> might just be an index or simple 0, it is often not
> even used.
> 
> See include/net/netlink.h about NLA_NESTED_ARRAY:
> > The difference to NLA_NESTED is the structure:
> > NLA_NESTED has the nested attributes directly inside
> > while an array has the nested attributes at another
> > level down and the attribute types directly in the
> > nesting don't matter.  

I don't understand, please provide more details.
This is an ArrayNest, right?

[ARRAY-ATTR]
  [ENTRY]
    [MEMBER1]
    [MEMBER2]
  [ENTRY]
    [MEMBER1]
    [MEMBER2]

Which level are you saying doesn't matter?
If entry is a nest it must be a valid nest.
What the comment you're quoting is saying is that the nla_type of ENTRY
doesn't matter.