Re: [PATCH bpf] bpf: fix XDP FD-based attach/detach logic around XDP_FLAGS_UPDATE_IF_NOEXIST

[Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx>]

On Wed, Aug 12, 2020 at 8:48 AM Stanislav Fomichev <sdf@xxxxxxxxxx> wrote:
>
> On Wed, Aug 12, 2020 at 2:24 AM Toke Høiland-Jørgensen <toke@xxxxxxxxxx> wrote:
> >
> > Andrii Nakryiko <andriin@xxxxxx> writes:
> >
> > > Enforce XDP_FLAGS_UPDATE_IF_NOEXIST only if new BPF program to be attached is
> > > non-NULL (i.e., we are not detaching a BPF program).
> > >
> > > Reported-by: Stanislav Fomichev <sdf@xxxxxxxxxx>
> > > Fixes: d4baa9368a5e ("bpf, xdp: Extract common XDP program attachment logic")
> > > Signed-off-by: Andrii Nakryiko <andriin@xxxxxx>
> >
> > Acked-by: Toke Høiland-Jørgensen <toke@xxxxxxxxxx>
> That fixed it for me, thank you!
>
> Tested-by: Stanislav Fomichev <sdf@xxxxxxxxxx>

Applied. Thanks