Can bpf_prog_test_run be facilitated without an extension driver

[shankarseal]

Extension drivers have to implement create/destroy context functions for bpf_prog_test_run. Can this be done by extension developers publishing some sort of type description, that can be used by eBPF core to de-serialize the buffer sent by the user mode to construct the program context? This bpf_prog_test_run can be executed without any real extension installed at all.

[saxena-anurag]

The eBPF program may be invoking some program type specific helper functions. That may not work with the above proposal.