I don't see the problem. GPL protects all of the code that is copyrighted, i.e. 100% made by humans. Accepting a submission created with AI tools doesn't change this. It's not going to be a simple task for someone who has decided to violate the GPL license to only use the generated/uncopyrighted portions without using any other GPL code and thus being subject to GPL licensing terms. These hypothetical GPL violating people will have a hard time using lines 27-38 of ./kernel/events/ring_buffer.c to do anything even if they technically can do so without releasing their code under the GPL. If they use any piece of GPL code, at all, anywhere, their entire project is required to follow the GPL. So while they could, technically, take 27-38 of ring_buffer.c and build an entire proprietary non-GPL Linux kernel... it is, in practice, not feasible even if it technically possible.