# Re: \[PATCH v1 1/2\] driver core: fw\_devlink: Add support for FWNODE\_FLAG\_BROKEN\_PARENT

- From: Andrew Lunn \<andrew@lunn.ch\>
- Date: 2021-08-27 20:11:35 
- List: netdev
- Page: https://ratatoskr.run/netdev/2021/08/1490883
- Thread: https://ratatoskr.run/netdev/2021/08/1489374/t.md

```text
> > I've not yet looked at plain Ethernet drivers. This pattern could also
> > exist there. And i wonder about other complex structures, i2c bus
> > multiplexors, you can have interrupt controllers as i2c devices,
> > etc. So the general case could exist in other places.
> 
> I haven't seen any generic issues like this reported so far. It's only
> after adding phy-handle that we are hitting these issues with DSA
> switches.

Can you run your parser over the 2250 DTB blobs and see how many
children have dependencies on a parent? That could give us an idea how
many moles need whacking. And maybe, where in the tree they are
hiding?

    Andrew
```