Hi,
Why is 5.10 special and newer kernels are not? This change shows up for them, right? Either this is a regression for all kernel releases and needs to be resolved, or it is ok for any kernel release.
Please work with the networking developers to either resolve the regression of determine what needs to be done here for userspace to work properly.
I agree, thanks. I tried it (https://marc.info/?t=164607426900002&r=1&w=2) and got this response from Steffen Klassert now:
In general I agree that the userspace ABI has to be stable, but this never worked. We changed the behaviour from silently broken to notify userspace about a misconfiguration.
It is the question what is more annoying for the users. A bug that we can never fix, or changing a broken behaviour to something that tells you at least why it is not working.
In such a case we should gauge what's the better solution. Here I tend to keep it as it is.
(https://marc.info/?l=linux-netdev&m=164615098503579&w=2)
Given it's unlikely to have this reverted in general I personally think that reverting for the LTS kernels makes sense at least...
Regards, Kai