netdev - Re: [PATCH bpf-next 15/15] bpf: selftest: Add kfunc

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Date:   Thu, 18 Mar 2021 22:40:05 -0700
From:   Martin KaFai Lau <kafai@...com>
To:     Andrii Nakryiko <andrii.nakryiko@...il.com>
CC:     bpf <bpf@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Kernel Team <kernel-team@...com>,
        Networking <netdev@...r.kernel.org>
Subject: Re: [PATCH bpf-next 15/15] bpf: selftest: Add kfunc_call test

On Thu, Mar 18, 2021 at 09:21:08PM -0700, Andrii Nakryiko wrote:
> > --- /dev/null
> > +++ b/tools/testing/selftests/bpf/prog_tests/kfunc_call.c
> > @@ -0,0 +1,61 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/* Copyright (c) 2021 Facebook */
> > +#include <test_progs.h>
> > +#include <network_helpers.h>
> > +#include "kfunc_call_test.skel.h"
> > +#include "kfunc_call_test_subprog.skel.h"
> > +
> > +static __u32 duration;
> > +
> 
> you shouldn't need it, you don't use CHECK()s
It was for bpf_prog_test_run().
Just noticed it can take NULL.  will remove in v2.