Re: [PATCH net-next] page_pool: add debug for release to cache from wrong CPU

[Jakub Kicinski]

On Tue, 23 Sep 2025 16:00:27 +0000 Dragos Tatulea wrote:
> > But you get what I'm saying right? I'm questioning whether _rx_napi()
> > flavor of calls even make sense these days. If they don't I'd think
> > the drivers can't be wrong and the need for the debug check is
> > diminished?  
> I got the point for XDP. I am not sure if you are arguing the same thing
> for the other users though. For example. there are many drivers
> releasing netmems with direct=true.

Right, I was thinking that XDP is the only complex case.
The other direct=true cases generally happen on the Rx path
when we are processing the frame. So chances that we get the 
context wrong are much lower. XDP is using the recycling from
Tx completions paths IIUC. So we need far more care in checking
that the frame actually came from the local NAPI.