netdev - Re: [PATCH bpf-next RFC v1 8/8] bpf, selftests: Add basic test for module kfunc call

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Date:   Mon, 30 Aug 2021 13:07:07 -0700
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Kumar Kartikeya Dwivedi <memxor@...il.com>
Cc:     bpf@...r.kernel.org, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Martin KaFai Lau <kafai@...com>,
        Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Toke Høiland-Jørgensen <toke@...hat.com>,
        netdev@...r.kernel.org
Subject: Re: [PATCH bpf-next RFC v1 8/8] bpf, selftests: Add basic test for
 module kfunc call

On Mon, Aug 30, 2021 at 11:04:24PM +0530, Kumar Kartikeya Dwivedi wrote:
> diff --git a/tools/testing/selftests/bpf/prog_tests/ksyms_module.c b/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
> index 2cd5cded543f..d3b0adc2a495 100644
> --- a/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
> +++ b/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
> @@ -4,21 +4,19 @@
>  #include <test_progs.h>
>  #include <bpf/libbpf.h>
>  #include <bpf/btf.h>
> -#include "test_ksyms_module.lskel.h"
> -
> -static int duration;
> +#include "test_ksyms_module.skel.h"

bpf_btf_find_by_name_kind supports searching in modules,
so adding support for kfunc in modules to lskel shouldn't be hard to add.