On Tue, 18 Apr 2023 at 01:29, Kui-Feng Lee <thinker.li@xxxxxxxxx> wrote: > > A new link type, BPF_LINK_TYPE_STRUCT_OPS, was added to attach > struct_ops to links. (226bc6ae6405) It would be helpful for users to > know which map is associated with the link. > > The assumption was that every link is associated with a BPF program, > but this does not hold true for struct_ops. It would be better to > display map_id instead of prog_id for struct_ops links. However, some > tools may rely on the old assumption and need a prog_id displayed in > the link header line. By keeping the prog_id unchanged, an extra line > indicating the map_id is displayed. > > Signed-off-by: Kui-Feng Lee <kuifeng@xxxxxxxx> Reviewed-by: Quentin Monnet <quentin@xxxxxxxxxxxxx> Thanks! What does the prog_id correspond to, for this type of links? If it's not relevant at all we could at least take it out from the plain output maybe, tools that want to parse the output should stick to JSON.
