On 10/25/20 9:13 AM, Toke Høiland-Jørgensen wrote: > David Ahern <dsahern@xxxxxxxxx> writes: > >> On 10/22/20 9:38 PM, Hangbin Liu wrote: >>> Note: ip/ipvrf.c is not convert to use libbpf as it only encodes a few >>> instructions and load directly. >> >> for completeness, libbpf should be able to load a program from a buffer >> as well. > > It can, but the particular use in ipvrf is just loading half a dozen > instructions defined inline in C - there's no object files, BTF or > anything. So why bother with going through libbpf in this case? The > actual attachment is using the existing code anyway... > actually, it already does: bpf_load_program I recalled figuring out how to do it, just did not remember if it was local changes to libbpf. Does not look like any changes were needed: https://github.com/dsahern/bpf-progs/blob/master/src/cgroup_sock.c
