Re: [PATCH bpf-next v5 1/2] bpf, xdp: Add tracepoint to xdp attaching failure
flat view
From: Jakub Kicinski <kuba@kernel.org>
Date: 2023-08-01 22:09:19
Also in:
bpf, linux-kselftest, lkml, netdev
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 [off-list ref] ?