On Thu, 21 Feb 2019 17:05:39 +0100
Toke Høiland-Jørgensen <t...@redhat.com> wrote:
> The xdp_redirect and xdp_redirect_map sample programs both load a dummy
> program onto the egress interfaces. However, the unload code checks these
> programs against the wrong fd number, and thus refuses to unload them. Fix
> the comparison to avoid this.
>
> Fixes: 3b7a8ec2dec3 ("samples/bpf: Check the prog id before exiting")
> Signed-off-by: Toke Høiland-Jørgensen <t...@redhat.com>
> ---
> samples/bpf/xdp_redirect_map_user.c | 2 +-
> samples/bpf/xdp_redirect_user.c | 2 +-
> 2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/samples/bpf/xdp_redirect_map_user.c
> b/samples/bpf/xdp_redirect_map_user.c
> index 327226be5a06..1dbe7fd3a1a8 100644
> --- a/samples/bpf/xdp_redirect_map_user.c
> +++ b/samples/bpf/xdp_redirect_map_user.c
> @@ -57,7 +57,7 @@ static void int_exit(int sig)
> printf("bpf_get_link_xdp_id failed\n");
> exit(1);
> }
> - if (prog_id == curr_prog_id)
> + if (dummy_prog_id == curr_prog_id)
> bpf_set_link_xdp_fd(ifindex_out, -1, xdp_flags);
> else if (!curr_prog_id)
> printf("couldn't find a prog id on iface OUT\n");
> diff --git a/samples/bpf/xdp_redirect_user.c b/samples/bpf/xdp_redirect_user.c
> index a5d8ad3129ed..e9054c0269ff 100644
> --- a/samples/bpf/xdp_redirect_user.c
> +++ b/samples/bpf/xdp_redirect_user.c
> @@ -57,7 +57,7 @@ static void int_exit(int sig)
> printf("bpf_get_link_xdp_id failed\n");
> exit(1);
> }
> - if (prog_id == curr_prog_id)
> + if (dummy_prog_id == curr_prog_id)
> bpf_set_link_xdp_fd(ifindex_out, -1, xdp_flags);
> else if (!curr_prog_id)
> printf("couldn't find a prog id on iface OUT\n");
It seems that I confused this in last version of patchset...my bad.
Acked-by: Maciej Fijalkowski <maciej.fijalkow...@intel.com>
