Hello, I have faced the same issue dor several days. It seems it due to the introduction of follow_pfn in kernel dev. (see https://github.com/NVIDIA/open-gpu-kernel-modules/issues/642)
To solve it have applied the patches given by nvidia the 21 of July here : https://forums.developer.nvidia.com/t/gpl-only-symbols-follow-pte-and-rcu-read-unlock-prevent-470-256-02-to-build-with-kernel-6-10/300052/4 I can confirm that it worked. I hope this information will help someone François.
