On Tue, Aug 23, 2022 at 10:32 PM John Fastabend <john.fastabend@xxxxxxxxx> wrote: > Namhyung Kim wrote: > > Ok, now I think that I can use a bpf-output sw event. It would need > > another BPF program to write data to the event and the test program > > can read it from BPF using this helper. :) > > Ah good idea. Feel free to carry my ACK to the v2 with the test. Hmm.. it seems not to work because 1. bpf_output sw event doesn't have the overflow mechanism and it doesn't call the bpf program. 2. even if I added it, it couldn't run due to the recursion protection by bpf_prog_active. Thanks, Namhyung
