Re: [PATCH net-next v4 1/2] net sched actions: dump more than TCA_ACT_MAX_PRIO actions per batch

Jamal Hadi Salim
2017-04-21T18:02:20Z

On 17-04-21 11:55 AM, Jamal Hadi Salim wrote:
> On 17-04-21 11:38 AM, David Miller wrote:

>> If a user says "enable X" and it just gets simply ignored by older
>> kernels, that can't work properly. What if "enable X" is something
>> like "turn on encryption"? Are you OK with the user getting no
>> feedback that their stuff is not going to be encrypted?
>>
>
> For this specific use case:
> Dont they need a newer kernel which supports "enable encryption"?

Also: What happens to this user space app when it encounters an
older kernel?

Using rejection as a capability discovery wont work I think.

cheers,
jamal