On Tue, 1 Aug 2023 22:26:20 +0800 Leon Hwang wrote: > When error happens in dev_xdp_attach(), it should have a way to tell > users the error message like the netlink approach. > > To avoid breaking uapi, adding a tracepoint in bpf_xdp_link_attach() is > an appropriate way to notify users the error message. > > Hence, bpf libraries are able to retrieve the error message by this > tracepoint, and then report the error message to users. Whatevered-by: Jakub Kicinski <kuba@xxxxxxxxxx> ?
