Hi, I have tried to add BPF LSM support to my 6.6.8 kernel, but HID-BPF fails with this message: [ 3.210054] hid_bpf: error while preloading HID BPF dispatcher: -22 At this point, I can only assume that the Kconfig rules are somehow incomplete and that there is a missing dependency somewhere. I have raised this issue as: https://bugzilla.kernel.org/show_bug.cgi?id=218320, where I have attached my kernel config. Can anyone see what I might be missing please? Thanks, Chris