On Tue, 30 Jul 2019 10:57:32 +0200, Jiri Pirko wrote:

From: Jiri Pirko <redacted>

All devlink instances are created in init_net and stay there for a
lifetime. Allow user to be able to move devlink instances into
namespaces.

Signed-off-by: Jiri Pirko <redacted>

I'm no namespace expert, but seems reasonable, so FWIW:

Acked-by: Jakub Kicinski <redacted>

If I read things right we will only send the devlink instance
notification to other namespaces when it moves, but not
notifications for sub-objects like ports. Is the expectation 
that the user space dumps the objects it cares about or will
the other notifications be added as needed (or option 3 - I 
misread the code).

I was also wondering it moving the devlink instance during a 
multi-part transaction could be an issue. But AFAIU it should 
be fine - the flashing doesn't release the instance lock, and 
health stuff should complete correctly even if devlink is moved
half way through?