# Re: \[PATCH v3 2/3\] driver core: fw\_devlink: Add support for FWNODE\_FLAG\_NEEDS\_CHILD\_BOUND\_ON\_ADD

- From: Andrew Lunn \<andrew@lunn.ch\>
- Date: 2021-09-22 12:53:23 
- List: netdev
- Page: https://ratatoskr.run/netdev/2021/09/1518289
- Thread: https://ratatoskr.run/netdev/2021/09/1509663/t.md

```text
> That goes back to Rafael's reply (and I agree):
> 
> "Also if the probe has already started, it may still return
> -EPROBE_DEFER at any time in theory, so as a rule the dependency is
> actually known to be satisfied when the probe has successfully
> completed."
> 
> So waiting for the probe to finish is the right behavior/intentional
> for fw_devlink.

But differs to how things actually work in the driver model. The
driver model does not care if a driver has finished probing, you can
use a resource as soon as it is registered. Hence this whole
problem/discussion.

	Andrew
```