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

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