On Thu, Jun 24, 2021 at 11:22 PM Ravi Bangoria
[off-list ref] wrote:

quoted

Could you send a followup patch with a selftest, so I don't make
the same mistake again ? ;)

Unfortunately extable gets involved only for bad kernel pointers and
ideally there should not be any bad pointer in kernel. So there is no
easy way to create a proper selftest for this.

Right. We have lib/test_bpf.c kernel module for such cases.