On Tue, 6 Jun 2023 12:21:07 +0200 Maciej Fijalkowski wrote:

quoted

quoted

couldn't this be checked the layer above then? and pulled out of drivers?

Probably it could, but I can't tell for all drivers if such request should
always be ignored. I'm not aware of all possible use cases for this callback
to be called and I can imagine designs where such request should be
always handled.  

if you can imagine a case where such request should be handled then i'm
all ears. it feels like this is in an optimization where everyone could
benefit from (no expert in this scope though), but yeah this callback went
into the wild and it's implemented all over the place.

+1, FWIW, this is a net-next change, let's try to put it in the core
unless we see a clear enough reason not to.