Re: [RFC] xdp: add device context to bpf_xdp_link_attach_failed tracepoint

[Leon Hwang]

Pls do not top-post.

See
https://docs.kernel.org/process/submitting-patches.html#use-trimmed-interleaved-replies-in-email-discussions.

On 2026/7/4 13:50, Masashi Honma wrote:
> Thank you Leon. I think this is a much better direction than my RFC, so I'll
> drop my tracepoint proposal and support your approach instead.
> 
> Since a user-space dependency on the existing tracepoint would make it hard
> for you to retire it, I'll make sure the Cilium PR doesn't rely on the
> tracepoint either.


Probably, you can get the 'extack->_msg' by tracing dev_xdp_attach using
kprobe+kretprobe or kprobe.session, if the extack is not NULL.

> 
> Is there anything I can help with on the new approach?


You are welcome to review the series in the future.

Thanks,
Leon

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