Subject: Re: [PATCH bpf] samples/bpf: xdp_redirect, correctly get dummy program id

From: Toke Høiland-Jørgensen <[email-masked]>
Date: Thu, 20 Jun 2019 07:57:11 -0400

Prashant Bhole <[email-masked]> writes:

> When we terminate xdp_redirect, it ends up with following message:
> "Program on iface OUT changed, not removing"
> This results in dummy prog still attached to OUT interface.
> It is because signal handler checks if the programs are the same that
> we had attached. But while fetching dummy_prog_id, current code uses
> prog_fd instead of dummy_prog_fd. This patch passes the correct fd.
>
> Fixes: 3b7a8ec2dec3 ("samples/bpf: Check the prog id before exiting")
> Signed-off-by: Prashant Bhole <[email-masked]>

Huh, I seem to recall fixing this for the other example program, but
guess I missed this one.

Acked-by: Toke Høiland-Jørgensen <[email-masked]>